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As of December 31, 2024, we had consolidated bank lines of credit aggregating to $ 362.0 million ($ 423.1 million as of December 31, 2023), most of which expire in January 2027. We had $ 16.2 million outstanding in standby letters of credit and $ 20.0 million outstanding draws under our lines of credit as of December 31, 2024 ($ 19.4 million in standby letters of credit and $ 34.1 million outstanding draws as of December 31, 2023). | text | 16.2 | monetaryItemType | text: <entity> 16.2 </entity> <entity type> monetaryItemType </entity type> <context> As of December 31, 2024, we had consolidated bank lines of credit aggregating to $ 362.0 million ($ 423.1 million as of December 31, 2023), most of which expire in January 2027. We had $ 16.2 million outstanding in standby letters of credit and $ 20.0 million outstanding draws under our lines of credit as of December 31, 2024 ($ 19.4 million in standby letters of credit and $ 34.1 million outstanding draws as of December 31, 2023). </context> | us-gaap:LettersOfCreditOutstandingAmount |
As of December 31, 2024, we had consolidated bank lines of credit aggregating to $ 362.0 million ($ 423.1 million as of December 31, 2023), most of which expire in January 2027. We had $ 16.2 million outstanding in standby letters of credit and $ 20.0 million outstanding draws under our lines of credit as of December 31, 2024 ($ 19.4 million in standby letters of credit and $ 34.1 million outstanding draws as of December 31, 2023). | text | 20.0 | monetaryItemType | text: <entity> 20.0 </entity> <entity type> monetaryItemType </entity type> <context> As of December 31, 2024, we had consolidated bank lines of credit aggregating to $ 362.0 million ($ 423.1 million as of December 31, 2023), most of which expire in January 2027. We had $ 16.2 million outstanding in standby letters of credit and $ 20.0 million outstanding draws under our lines of credit as of December 31, 2024 ($ 19.4 million in standby letters of credit and $ 34.1 million outstanding draws as of December 31, 2023). </context> | us-gaap:LinesOfCreditCurrent |
As of December 31, 2024, we had consolidated bank lines of credit aggregating to $ 362.0 million ($ 423.1 million as of December 31, 2023), most of which expire in January 2027. We had $ 16.2 million outstanding in standby letters of credit and $ 20.0 million outstanding draws under our lines of credit as of December 31, 2024 ($ 19.4 million in standby letters of credit and $ 34.1 million outstanding draws as of December 31, 2023). | text | 19.4 | monetaryItemType | text: <entity> 19.4 </entity> <entity type> monetaryItemType </entity type> <context> As of December 31, 2024, we had consolidated bank lines of credit aggregating to $ 362.0 million ($ 423.1 million as of December 31, 2023), most of which expire in January 2027. We had $ 16.2 million outstanding in standby letters of credit and $ 20.0 million outstanding draws under our lines of credit as of December 31, 2024 ($ 19.4 million in standby letters of credit and $ 34.1 million outstanding draws as of December 31, 2023). </context> | us-gaap:LettersOfCreditOutstandingAmount |
As of December 31, 2024, we had consolidated bank lines of credit aggregating to $ 362.0 million ($ 423.1 million as of December 31, 2023), most of which expire in January 2027. We had $ 16.2 million outstanding in standby letters of credit and $ 20.0 million outstanding draws under our lines of credit as of December 31, 2024 ($ 19.4 million in standby letters of credit and $ 34.1 million outstanding draws as of December 31, 2023). | text | 34.1 | monetaryItemType | text: <entity> 34.1 </entity> <entity type> monetaryItemType </entity type> <context> As of December 31, 2024, we had consolidated bank lines of credit aggregating to $ 362.0 million ($ 423.1 million as of December 31, 2023), most of which expire in January 2027. We had $ 16.2 million outstanding in standby letters of credit and $ 20.0 million outstanding draws under our lines of credit as of December 31, 2024 ($ 19.4 million in standby letters of credit and $ 34.1 million outstanding draws as of December 31, 2023). </context> | us-gaap:LinesOfCreditCurrent |
As of December 31, 2024, total long-term debt outstanding was $ 1,704.7 million ($ 1,679.9 million as of December 31, 2023) and included $ 8.6 million of unamortized debt issuance costs. The aggregate amount of long-term debt maturing in 2025 is $ 94.7 million; $ 80.2 million in 2026; $ 182.5 million in 2027; $ 55.8 million in 2028; $ 220.3 million in 2029; and $ 1,174.5 million thereafter. Substantially all of our regulated electric plant is subject to the lien of the mortgages collateralizing outstanding first mortgage bonds. The mortgages contain non-financial covenants customary in utility mortgages, including restrictions on our ability to incur liens, dispose of assets, and merge with other entities. | text | 1704.7 | monetaryItemType | text: <entity> 1704.7 </entity> <entity type> monetaryItemType </entity type> <context> As of December 31, 2024, total long-term debt outstanding was $ 1,704.7 million ($ 1,679.9 million as of December 31, 2023) and included $ 8.6 million of unamortized debt issuance costs. The aggregate amount of long-term debt maturing in 2025 is $ 94.7 million; $ 80.2 million in 2026; $ 182.5 million in 2027; $ 55.8 million in 2028; $ 220.3 million in 2029; and $ 1,174.5 million thereafter. Substantially all of our regulated electric plant is subject to the lien of the mortgages collateralizing outstanding first mortgage bonds. The mortgages contain non-financial covenants customary in utility mortgages, including restrictions on our ability to incur liens, dispose of assets, and merge with other entities. </context> | us-gaap:LongTermDebtNoncurrent |
As of December 31, 2024, total long-term debt outstanding was $ 1,704.7 million ($ 1,679.9 million as of December 31, 2023) and included $ 8.6 million of unamortized debt issuance costs. The aggregate amount of long-term debt maturing in 2025 is $ 94.7 million; $ 80.2 million in 2026; $ 182.5 million in 2027; $ 55.8 million in 2028; $ 220.3 million in 2029; and $ 1,174.5 million thereafter. Substantially all of our regulated electric plant is subject to the lien of the mortgages collateralizing outstanding first mortgage bonds. The mortgages contain non-financial covenants customary in utility mortgages, including restrictions on our ability to incur liens, dispose of assets, and merge with other entities. | text | 1679.9 | monetaryItemType | text: <entity> 1679.9 </entity> <entity type> monetaryItemType </entity type> <context> As of December 31, 2024, total long-term debt outstanding was $ 1,704.7 million ($ 1,679.9 million as of December 31, 2023) and included $ 8.6 million of unamortized debt issuance costs. The aggregate amount of long-term debt maturing in 2025 is $ 94.7 million; $ 80.2 million in 2026; $ 182.5 million in 2027; $ 55.8 million in 2028; $ 220.3 million in 2029; and $ 1,174.5 million thereafter. Substantially all of our regulated electric plant is subject to the lien of the mortgages collateralizing outstanding first mortgage bonds. The mortgages contain non-financial covenants customary in utility mortgages, including restrictions on our ability to incur liens, dispose of assets, and merge with other entities. </context> | us-gaap:LongTermDebtNoncurrent |
As of December 31, 2024, total long-term debt outstanding was $ 1,704.7 million ($ 1,679.9 million as of December 31, 2023) and included $ 8.6 million of unamortized debt issuance costs. The aggregate amount of long-term debt maturing in 2025 is $ 94.7 million; $ 80.2 million in 2026; $ 182.5 million in 2027; $ 55.8 million in 2028; $ 220.3 million in 2029; and $ 1,174.5 million thereafter. Substantially all of our regulated electric plant is subject to the lien of the mortgages collateralizing outstanding first mortgage bonds. The mortgages contain non-financial covenants customary in utility mortgages, including restrictions on our ability to incur liens, dispose of assets, and merge with other entities. | text | 8.6 | monetaryItemType | text: <entity> 8.6 </entity> <entity type> monetaryItemType </entity type> <context> As of December 31, 2024, total long-term debt outstanding was $ 1,704.7 million ($ 1,679.9 million as of December 31, 2023) and included $ 8.6 million of unamortized debt issuance costs. The aggregate amount of long-term debt maturing in 2025 is $ 94.7 million; $ 80.2 million in 2026; $ 182.5 million in 2027; $ 55.8 million in 2028; $ 220.3 million in 2029; and $ 1,174.5 million thereafter. Substantially all of our regulated electric plant is subject to the lien of the mortgages collateralizing outstanding first mortgage bonds. The mortgages contain non-financial covenants customary in utility mortgages, including restrictions on our ability to incur liens, dispose of assets, and merge with other entities. </context> | us-gaap:DeferredFinanceCostsNoncurrentNet |
As of December 31, 2024, total long-term debt outstanding was $ 1,704.7 million ($ 1,679.9 million as of December 31, 2023) and included $ 8.6 million of unamortized debt issuance costs. The aggregate amount of long-term debt maturing in 2025 is $ 94.7 million; $ 80.2 million in 2026; $ 182.5 million in 2027; $ 55.8 million in 2028; $ 220.3 million in 2029; and $ 1,174.5 million thereafter. Substantially all of our regulated electric plant is subject to the lien of the mortgages collateralizing outstanding first mortgage bonds. The mortgages contain non-financial covenants customary in utility mortgages, including restrictions on our ability to incur liens, dispose of assets, and merge with other entities. | text | 94.7 | monetaryItemType | text: <entity> 94.7 </entity> <entity type> monetaryItemType </entity type> <context> As of December 31, 2024, total long-term debt outstanding was $ 1,704.7 million ($ 1,679.9 million as of December 31, 2023) and included $ 8.6 million of unamortized debt issuance costs. The aggregate amount of long-term debt maturing in 2025 is $ 94.7 million; $ 80.2 million in 2026; $ 182.5 million in 2027; $ 55.8 million in 2028; $ 220.3 million in 2029; and $ 1,174.5 million thereafter. Substantially all of our regulated electric plant is subject to the lien of the mortgages collateralizing outstanding first mortgage bonds. The mortgages contain non-financial covenants customary in utility mortgages, including restrictions on our ability to incur liens, dispose of assets, and merge with other entities. </context> | us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths |
As of December 31, 2024, total long-term debt outstanding was $ 1,704.7 million ($ 1,679.9 million as of December 31, 2023) and included $ 8.6 million of unamortized debt issuance costs. The aggregate amount of long-term debt maturing in 2025 is $ 94.7 million; $ 80.2 million in 2026; $ 182.5 million in 2027; $ 55.8 million in 2028; $ 220.3 million in 2029; and $ 1,174.5 million thereafter. Substantially all of our regulated electric plant is subject to the lien of the mortgages collateralizing outstanding first mortgage bonds. The mortgages contain non-financial covenants customary in utility mortgages, including restrictions on our ability to incur liens, dispose of assets, and merge with other entities. | text | 80.2 | monetaryItemType | text: <entity> 80.2 </entity> <entity type> monetaryItemType </entity type> <context> As of December 31, 2024, total long-term debt outstanding was $ 1,704.7 million ($ 1,679.9 million as of December 31, 2023) and included $ 8.6 million of unamortized debt issuance costs. The aggregate amount of long-term debt maturing in 2025 is $ 94.7 million; $ 80.2 million in 2026; $ 182.5 million in 2027; $ 55.8 million in 2028; $ 220.3 million in 2029; and $ 1,174.5 million thereafter. Substantially all of our regulated electric plant is subject to the lien of the mortgages collateralizing outstanding first mortgage bonds. The mortgages contain non-financial covenants customary in utility mortgages, including restrictions on our ability to incur liens, dispose of assets, and merge with other entities. </context> | us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo |
As of December 31, 2024, total long-term debt outstanding was $ 1,704.7 million ($ 1,679.9 million as of December 31, 2023) and included $ 8.6 million of unamortized debt issuance costs. The aggregate amount of long-term debt maturing in 2025 is $ 94.7 million; $ 80.2 million in 2026; $ 182.5 million in 2027; $ 55.8 million in 2028; $ 220.3 million in 2029; and $ 1,174.5 million thereafter. Substantially all of our regulated electric plant is subject to the lien of the mortgages collateralizing outstanding first mortgage bonds. The mortgages contain non-financial covenants customary in utility mortgages, including restrictions on our ability to incur liens, dispose of assets, and merge with other entities. | text | 182.5 | monetaryItemType | text: <entity> 182.5 </entity> <entity type> monetaryItemType </entity type> <context> As of December 31, 2024, total long-term debt outstanding was $ 1,704.7 million ($ 1,679.9 million as of December 31, 2023) and included $ 8.6 million of unamortized debt issuance costs. The aggregate amount of long-term debt maturing in 2025 is $ 94.7 million; $ 80.2 million in 2026; $ 182.5 million in 2027; $ 55.8 million in 2028; $ 220.3 million in 2029; and $ 1,174.5 million thereafter. Substantially all of our regulated electric plant is subject to the lien of the mortgages collateralizing outstanding first mortgage bonds. The mortgages contain non-financial covenants customary in utility mortgages, including restrictions on our ability to incur liens, dispose of assets, and merge with other entities. </context> | us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree |
As of December 31, 2024, total long-term debt outstanding was $ 1,704.7 million ($ 1,679.9 million as of December 31, 2023) and included $ 8.6 million of unamortized debt issuance costs. The aggregate amount of long-term debt maturing in 2025 is $ 94.7 million; $ 80.2 million in 2026; $ 182.5 million in 2027; $ 55.8 million in 2028; $ 220.3 million in 2029; and $ 1,174.5 million thereafter. Substantially all of our regulated electric plant is subject to the lien of the mortgages collateralizing outstanding first mortgage bonds. The mortgages contain non-financial covenants customary in utility mortgages, including restrictions on our ability to incur liens, dispose of assets, and merge with other entities. | text | 55.8 | monetaryItemType | text: <entity> 55.8 </entity> <entity type> monetaryItemType </entity type> <context> As of December 31, 2024, total long-term debt outstanding was $ 1,704.7 million ($ 1,679.9 million as of December 31, 2023) and included $ 8.6 million of unamortized debt issuance costs. The aggregate amount of long-term debt maturing in 2025 is $ 94.7 million; $ 80.2 million in 2026; $ 182.5 million in 2027; $ 55.8 million in 2028; $ 220.3 million in 2029; and $ 1,174.5 million thereafter. Substantially all of our regulated electric plant is subject to the lien of the mortgages collateralizing outstanding first mortgage bonds. The mortgages contain non-financial covenants customary in utility mortgages, including restrictions on our ability to incur liens, dispose of assets, and merge with other entities. </context> | us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour |
As of December 31, 2024, total long-term debt outstanding was $ 1,704.7 million ($ 1,679.9 million as of December 31, 2023) and included $ 8.6 million of unamortized debt issuance costs. The aggregate amount of long-term debt maturing in 2025 is $ 94.7 million; $ 80.2 million in 2026; $ 182.5 million in 2027; $ 55.8 million in 2028; $ 220.3 million in 2029; and $ 1,174.5 million thereafter. Substantially all of our regulated electric plant is subject to the lien of the mortgages collateralizing outstanding first mortgage bonds. The mortgages contain non-financial covenants customary in utility mortgages, including restrictions on our ability to incur liens, dispose of assets, and merge with other entities. | text | 220.3 | monetaryItemType | text: <entity> 220.3 </entity> <entity type> monetaryItemType </entity type> <context> As of December 31, 2024, total long-term debt outstanding was $ 1,704.7 million ($ 1,679.9 million as of December 31, 2023) and included $ 8.6 million of unamortized debt issuance costs. The aggregate amount of long-term debt maturing in 2025 is $ 94.7 million; $ 80.2 million in 2026; $ 182.5 million in 2027; $ 55.8 million in 2028; $ 220.3 million in 2029; and $ 1,174.5 million thereafter. Substantially all of our regulated electric plant is subject to the lien of the mortgages collateralizing outstanding first mortgage bonds. The mortgages contain non-financial covenants customary in utility mortgages, including restrictions on our ability to incur liens, dispose of assets, and merge with other entities. </context> | us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive |
As of December 31, 2024, total long-term debt outstanding was $ 1,704.7 million ($ 1,679.9 million as of December 31, 2023) and included $ 8.6 million of unamortized debt issuance costs. The aggregate amount of long-term debt maturing in 2025 is $ 94.7 million; $ 80.2 million in 2026; $ 182.5 million in 2027; $ 55.8 million in 2028; $ 220.3 million in 2029; and $ 1,174.5 million thereafter. Substantially all of our regulated electric plant is subject to the lien of the mortgages collateralizing outstanding first mortgage bonds. The mortgages contain non-financial covenants customary in utility mortgages, including restrictions on our ability to incur liens, dispose of assets, and merge with other entities. | text | 1174.5 | monetaryItemType | text: <entity> 1174.5 </entity> <entity type> monetaryItemType </entity type> <context> As of December 31, 2024, total long-term debt outstanding was $ 1,704.7 million ($ 1,679.9 million as of December 31, 2023) and included $ 8.6 million of unamortized debt issuance costs. The aggregate amount of long-term debt maturing in 2025 is $ 94.7 million; $ 80.2 million in 2026; $ 182.5 million in 2027; $ 55.8 million in 2028; $ 220.3 million in 2029; and $ 1,174.5 million thereafter. Substantially all of our regulated electric plant is subject to the lien of the mortgages collateralizing outstanding first mortgage bonds. The mortgages contain non-financial covenants customary in utility mortgages, including restrictions on our ability to incur liens, dispose of assets, and merge with other entities. </context> | us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive |
Minnesota Power is obligated to make financing payments for the Camp Ripley solar array totaling $ 1.4 million annually during the financing term, which expires in 2027. Minnesota Power has the option at the end of the financing term to renew for a two -year term, or to purchase the solar array for approximately $ 4 million. Minnesota Power anticipates exercising the purchase option when the term expires. | text | 1.4 | monetaryItemType | text: <entity> 1.4 </entity> <entity type> monetaryItemType </entity type> <context> Minnesota Power is obligated to make financing payments for the Camp Ripley solar array totaling $ 1.4 million annually during the financing term, which expires in 2027. Minnesota Power has the option at the end of the financing term to renew for a two -year term, or to purchase the solar array for approximately $ 4 million. Minnesota Power anticipates exercising the purchase option when the term expires. </context> | us-gaap:DebtInstrumentPeriodicPayment |
On April 23, 2024, ALLETE issued $ 100 million of its First Mortgage Bonds (Bonds) to certain institutional buyers in the private placement market. The Bonds, which bear interest at 5.72 percent, will mature on April 30, 2039 and pay interest semi-annually in April and October of each year, commencing on October 30, 2024. ALLETE has the option to prepay all or a portion of the Bonds at its discretion, subject to a make-whole provision. The Bonds are subject to additional terms and conditions which are customary for these types of transactions. Proceeds from the sale of the Bonds were used to refinance existing indebtedness and for general corporate purposes. The Bonds were sold in reliance on an exemption from registration under Section 4(a)(2) of the Securities Act of 1933, as amended, to institutional accredited investors. | text | 100 | monetaryItemType | text: <entity> 100 </entity> <entity type> monetaryItemType </entity type> <context> On April 23, 2024, ALLETE issued $ 100 million of its First Mortgage Bonds (Bonds) to certain institutional buyers in the private placement market. The Bonds, which bear interest at 5.72 percent, will mature on April 30, 2039 and pay interest semi-annually in April and October of each year, commencing on October 30, 2024. ALLETE has the option to prepay all or a portion of the Bonds at its discretion, subject to a make-whole provision. The Bonds are subject to additional terms and conditions which are customary for these types of transactions. Proceeds from the sale of the Bonds were used to refinance existing indebtedness and for general corporate purposes. The Bonds were sold in reliance on an exemption from registration under Section 4(a)(2) of the Securities Act of 1933, as amended, to institutional accredited investors. </context> | us-gaap:ProceedsFromIssuanceOfFirstMortgageBond |
On April 23, 2024, ALLETE issued $ 100 million of its First Mortgage Bonds (Bonds) to certain institutional buyers in the private placement market. The Bonds, which bear interest at 5.72 percent, will mature on April 30, 2039 and pay interest semi-annually in April and October of each year, commencing on October 30, 2024. ALLETE has the option to prepay all or a portion of the Bonds at its discretion, subject to a make-whole provision. The Bonds are subject to additional terms and conditions which are customary for these types of transactions. Proceeds from the sale of the Bonds were used to refinance existing indebtedness and for general corporate purposes. The Bonds were sold in reliance on an exemption from registration under Section 4(a)(2) of the Securities Act of 1933, as amended, to institutional accredited investors. | text | 5.72 | percentItemType | text: <entity> 5.72 </entity> <entity type> percentItemType </entity type> <context> On April 23, 2024, ALLETE issued $ 100 million of its First Mortgage Bonds (Bonds) to certain institutional buyers in the private placement market. The Bonds, which bear interest at 5.72 percent, will mature on April 30, 2039 and pay interest semi-annually in April and October of each year, commencing on October 30, 2024. ALLETE has the option to prepay all or a portion of the Bonds at its discretion, subject to a make-whole provision. The Bonds are subject to additional terms and conditions which are customary for these types of transactions. Proceeds from the sale of the Bonds were used to refinance existing indebtedness and for general corporate purposes. The Bonds were sold in reliance on an exemption from registration under Section 4(a)(2) of the Securities Act of 1933, as amended, to institutional accredited investors. </context> | us-gaap:DebtInstrumentInterestRateStatedPercentage |
On July 31, 2024, ALLETE issued a notice to the holders of its 2.65 percent senior notes due September 10, 2025, (“2025 Notes”) regarding the Company’s exercise of its option to prepay all of the issued and outstanding 2025 Notes. ALLETE prepaid all $ 150 million in aggregate principal amount of the 2025 Notes on September 5, 2024. The 2025 Notes were prepaid at 100 percent of their principal amount, plus accrued and unpaid interest. | text | 2.65 | percentItemType | text: <entity> 2.65 </entity> <entity type> percentItemType </entity type> <context> On July 31, 2024, ALLETE issued a notice to the holders of its 2.65 percent senior notes due September 10, 2025, (“2025 Notes”) regarding the Company’s exercise of its option to prepay all of the issued and outstanding 2025 Notes. ALLETE prepaid all $ 150 million in aggregate principal amount of the 2025 Notes on September 5, 2024. The 2025 Notes were prepaid at 100 percent of their principal amount, plus accrued and unpaid interest. </context> | us-gaap:DebtInstrumentInterestRateStatedPercentage |
On July 31, 2024, ALLETE issued a notice to the holders of its 2.65 percent senior notes due September 10, 2025, (“2025 Notes”) regarding the Company’s exercise of its option to prepay all of the issued and outstanding 2025 Notes. ALLETE prepaid all $ 150 million in aggregate principal amount of the 2025 Notes on September 5, 2024. The 2025 Notes were prepaid at 100 percent of their principal amount, plus accrued and unpaid interest. | text | 150 | monetaryItemType | text: <entity> 150 </entity> <entity type> monetaryItemType </entity type> <context> On July 31, 2024, ALLETE issued a notice to the holders of its 2.65 percent senior notes due September 10, 2025, (“2025 Notes”) regarding the Company’s exercise of its option to prepay all of the issued and outstanding 2025 Notes. ALLETE prepaid all $ 150 million in aggregate principal amount of the 2025 Notes on September 5, 2024. The 2025 Notes were prepaid at 100 percent of their principal amount, plus accrued and unpaid interest. </context> | us-gaap:RepaymentsOfSeniorDebt |
On September 5, 2024, ALLETE issued and sold $ 150 million of senior unsecured notes (“Notes”) to certain institutional buyers in the private placement market. The Notes were sold in reliance on an exemption from registration under Section 4(a)(2) of the Securities Act of 1933, as amended, to institutional accredited investors. Of the Notes issued and sold, $ 100 million of the Notes bear interest at a rate of 5.94 percent and mature on September 5, 2029, and $ 50 million of the Notes bear interest at a rate of 6.18 percent and mature on September 5, 2034. Interest on the Notes will be payable semi-annually on March 5 and September 5 of each year, commencing on March 5, 2025. The Company has the option to prepay all or a portion of the Notes at its discretion, subject to a make-whole provision. The Notes are subject to additional terms and conditions which are customary for these types of transactions. Proceeds from the sale of the Notes were used for refinancing of debt and general corporate purposes. | text | 150 | monetaryItemType | text: <entity> 150 </entity> <entity type> monetaryItemType </entity type> <context> On September 5, 2024, ALLETE issued and sold $ 150 million of senior unsecured notes (“Notes”) to certain institutional buyers in the private placement market. The Notes were sold in reliance on an exemption from registration under Section 4(a)(2) of the Securities Act of 1933, as amended, to institutional accredited investors. Of the Notes issued and sold, $ 100 million of the Notes bear interest at a rate of 5.94 percent and mature on September 5, 2029, and $ 50 million of the Notes bear interest at a rate of 6.18 percent and mature on September 5, 2034. Interest on the Notes will be payable semi-annually on March 5 and September 5 of each year, commencing on March 5, 2025. The Company has the option to prepay all or a portion of the Notes at its discretion, subject to a make-whole provision. The Notes are subject to additional terms and conditions which are customary for these types of transactions. Proceeds from the sale of the Notes were used for refinancing of debt and general corporate purposes. </context> | us-gaap:DebtInstrumentFaceAmount |
On September 5, 2024, ALLETE issued and sold $ 150 million of senior unsecured notes (“Notes”) to certain institutional buyers in the private placement market. The Notes were sold in reliance on an exemption from registration under Section 4(a)(2) of the Securities Act of 1933, as amended, to institutional accredited investors. Of the Notes issued and sold, $ 100 million of the Notes bear interest at a rate of 5.94 percent and mature on September 5, 2029, and $ 50 million of the Notes bear interest at a rate of 6.18 percent and mature on September 5, 2034. Interest on the Notes will be payable semi-annually on March 5 and September 5 of each year, commencing on March 5, 2025. The Company has the option to prepay all or a portion of the Notes at its discretion, subject to a make-whole provision. The Notes are subject to additional terms and conditions which are customary for these types of transactions. Proceeds from the sale of the Notes were used for refinancing of debt and general corporate purposes. | text | 100 | monetaryItemType | text: <entity> 100 </entity> <entity type> monetaryItemType </entity type> <context> On September 5, 2024, ALLETE issued and sold $ 150 million of senior unsecured notes (“Notes”) to certain institutional buyers in the private placement market. The Notes were sold in reliance on an exemption from registration under Section 4(a)(2) of the Securities Act of 1933, as amended, to institutional accredited investors. Of the Notes issued and sold, $ 100 million of the Notes bear interest at a rate of 5.94 percent and mature on September 5, 2029, and $ 50 million of the Notes bear interest at a rate of 6.18 percent and mature on September 5, 2034. Interest on the Notes will be payable semi-annually on March 5 and September 5 of each year, commencing on March 5, 2025. The Company has the option to prepay all or a portion of the Notes at its discretion, subject to a make-whole provision. The Notes are subject to additional terms and conditions which are customary for these types of transactions. Proceeds from the sale of the Notes were used for refinancing of debt and general corporate purposes. </context> | us-gaap:DebtInstrumentFaceAmount |
On September 5, 2024, ALLETE issued and sold $ 150 million of senior unsecured notes (“Notes”) to certain institutional buyers in the private placement market. The Notes were sold in reliance on an exemption from registration under Section 4(a)(2) of the Securities Act of 1933, as amended, to institutional accredited investors. Of the Notes issued and sold, $ 100 million of the Notes bear interest at a rate of 5.94 percent and mature on September 5, 2029, and $ 50 million of the Notes bear interest at a rate of 6.18 percent and mature on September 5, 2034. Interest on the Notes will be payable semi-annually on March 5 and September 5 of each year, commencing on March 5, 2025. The Company has the option to prepay all or a portion of the Notes at its discretion, subject to a make-whole provision. The Notes are subject to additional terms and conditions which are customary for these types of transactions. Proceeds from the sale of the Notes were used for refinancing of debt and general corporate purposes. | text | 5.94 | percentItemType | text: <entity> 5.94 </entity> <entity type> percentItemType </entity type> <context> On September 5, 2024, ALLETE issued and sold $ 150 million of senior unsecured notes (“Notes”) to certain institutional buyers in the private placement market. The Notes were sold in reliance on an exemption from registration under Section 4(a)(2) of the Securities Act of 1933, as amended, to institutional accredited investors. Of the Notes issued and sold, $ 100 million of the Notes bear interest at a rate of 5.94 percent and mature on September 5, 2029, and $ 50 million of the Notes bear interest at a rate of 6.18 percent and mature on September 5, 2034. Interest on the Notes will be payable semi-annually on March 5 and September 5 of each year, commencing on March 5, 2025. The Company has the option to prepay all or a portion of the Notes at its discretion, subject to a make-whole provision. The Notes are subject to additional terms and conditions which are customary for these types of transactions. Proceeds from the sale of the Notes were used for refinancing of debt and general corporate purposes. </context> | us-gaap:DebtInstrumentInterestRateStatedPercentage |
On September 5, 2024, ALLETE issued and sold $ 150 million of senior unsecured notes (“Notes”) to certain institutional buyers in the private placement market. The Notes were sold in reliance on an exemption from registration under Section 4(a)(2) of the Securities Act of 1933, as amended, to institutional accredited investors. Of the Notes issued and sold, $ 100 million of the Notes bear interest at a rate of 5.94 percent and mature on September 5, 2029, and $ 50 million of the Notes bear interest at a rate of 6.18 percent and mature on September 5, 2034. Interest on the Notes will be payable semi-annually on March 5 and September 5 of each year, commencing on March 5, 2025. The Company has the option to prepay all or a portion of the Notes at its discretion, subject to a make-whole provision. The Notes are subject to additional terms and conditions which are customary for these types of transactions. Proceeds from the sale of the Notes were used for refinancing of debt and general corporate purposes. | text | 50 | monetaryItemType | text: <entity> 50 </entity> <entity type> monetaryItemType </entity type> <context> On September 5, 2024, ALLETE issued and sold $ 150 million of senior unsecured notes (“Notes”) to certain institutional buyers in the private placement market. The Notes were sold in reliance on an exemption from registration under Section 4(a)(2) of the Securities Act of 1933, as amended, to institutional accredited investors. Of the Notes issued and sold, $ 100 million of the Notes bear interest at a rate of 5.94 percent and mature on September 5, 2029, and $ 50 million of the Notes bear interest at a rate of 6.18 percent and mature on September 5, 2034. Interest on the Notes will be payable semi-annually on March 5 and September 5 of each year, commencing on March 5, 2025. The Company has the option to prepay all or a portion of the Notes at its discretion, subject to a make-whole provision. The Notes are subject to additional terms and conditions which are customary for these types of transactions. Proceeds from the sale of the Notes were used for refinancing of debt and general corporate purposes. </context> | us-gaap:DebtInstrumentFaceAmount |
On September 5, 2024, ALLETE issued and sold $ 150 million of senior unsecured notes (“Notes”) to certain institutional buyers in the private placement market. The Notes were sold in reliance on an exemption from registration under Section 4(a)(2) of the Securities Act of 1933, as amended, to institutional accredited investors. Of the Notes issued and sold, $ 100 million of the Notes bear interest at a rate of 5.94 percent and mature on September 5, 2029, and $ 50 million of the Notes bear interest at a rate of 6.18 percent and mature on September 5, 2034. Interest on the Notes will be payable semi-annually on March 5 and September 5 of each year, commencing on March 5, 2025. The Company has the option to prepay all or a portion of the Notes at its discretion, subject to a make-whole provision. The Notes are subject to additional terms and conditions which are customary for these types of transactions. Proceeds from the sale of the Notes were used for refinancing of debt and general corporate purposes. | text | 6.18 | percentItemType | text: <entity> 6.18 </entity> <entity type> percentItemType </entity type> <context> On September 5, 2024, ALLETE issued and sold $ 150 million of senior unsecured notes (“Notes”) to certain institutional buyers in the private placement market. The Notes were sold in reliance on an exemption from registration under Section 4(a)(2) of the Securities Act of 1933, as amended, to institutional accredited investors. Of the Notes issued and sold, $ 100 million of the Notes bear interest at a rate of 5.94 percent and mature on September 5, 2029, and $ 50 million of the Notes bear interest at a rate of 6.18 percent and mature on September 5, 2034. Interest on the Notes will be payable semi-annually on March 5 and September 5 of each year, commencing on March 5, 2025. The Company has the option to prepay all or a portion of the Notes at its discretion, subject to a make-whole provision. The Notes are subject to additional terms and conditions which are customary for these types of transactions. Proceeds from the sale of the Notes were used for refinancing of debt and general corporate purposes. </context> | us-gaap:DebtInstrumentInterestRateStatedPercentage |
Minnesota Power has a PPA with Square Butte that extends through 2026 (Agreement). Minnesota Power is obligated to pay its pro rata share of Square Butte’s costs based on its entitlement to the output of Square Butte’s 455 MW coal fired generating unit. Minnesota Power’s output entitlement under the Agreement is 50 percent for the remainder of the Agreement, subject to the provisions of the Minnkota Power PSA described in the following table. Minnesota Power’s payment obligation will be suspended if Square Butte fails to deliver any power, whether produced or purchased, for a period of one year. Square Butte’s costs consist primarily of debt service, operating and maintenance, depreciation and fuel expenses. As of December 31, 2024, Square Butte had total debt outstanding of $ 168.9 million. Annual debt service for Square Butte is expected to be approximately $ 30.6 million in 2025 and $ 32.1 million in 2026 of which Minnesota Power’s obligation is 50 percent. Fuel expenses are recoverable through Minnesota Power’s fuel adjustment clause and include the cost of coal purchased from BNI Energy under a long-term contract. | text | 50 | percentItemType | text: <entity> 50 </entity> <entity type> percentItemType </entity type> <context> Minnesota Power has a PPA with Square Butte that extends through 2026 (Agreement). Minnesota Power is obligated to pay its pro rata share of Square Butte’s costs based on its entitlement to the output of Square Butte’s 455 MW coal fired generating unit. Minnesota Power’s output entitlement under the Agreement is 50 percent for the remainder of the Agreement, subject to the provisions of the Minnkota Power PSA described in the following table. Minnesota Power’s payment obligation will be suspended if Square Butte fails to deliver any power, whether produced or purchased, for a period of one year. Square Butte’s costs consist primarily of debt service, operating and maintenance, depreciation and fuel expenses. As of December 31, 2024, Square Butte had total debt outstanding of $ 168.9 million. Annual debt service for Square Butte is expected to be approximately $ 30.6 million in 2025 and $ 32.1 million in 2026 of which Minnesota Power’s obligation is 50 percent. Fuel expenses are recoverable through Minnesota Power’s fuel adjustment clause and include the cost of coal purchased from BNI Energy under a long-term contract. </context> | us-gaap:LongTermContractForPurchaseOfElectricPowerShareOfPlantOutputBeingPurchased |
Minnesota Power has a PPA with Square Butte that extends through 2026 (Agreement). Minnesota Power is obligated to pay its pro rata share of Square Butte’s costs based on its entitlement to the output of Square Butte’s 455 MW coal fired generating unit. Minnesota Power’s output entitlement under the Agreement is 50 percent for the remainder of the Agreement, subject to the provisions of the Minnkota Power PSA described in the following table. Minnesota Power’s payment obligation will be suspended if Square Butte fails to deliver any power, whether produced or purchased, for a period of one year. Square Butte’s costs consist primarily of debt service, operating and maintenance, depreciation and fuel expenses. As of December 31, 2024, Square Butte had total debt outstanding of $ 168.9 million. Annual debt service for Square Butte is expected to be approximately $ 30.6 million in 2025 and $ 32.1 million in 2026 of which Minnesota Power’s obligation is 50 percent. Fuel expenses are recoverable through Minnesota Power’s fuel adjustment clause and include the cost of coal purchased from BNI Energy under a long-term contract. | text | 168.9 | monetaryItemType | text: <entity> 168.9 </entity> <entity type> monetaryItemType </entity type> <context> Minnesota Power has a PPA with Square Butte that extends through 2026 (Agreement). Minnesota Power is obligated to pay its pro rata share of Square Butte’s costs based on its entitlement to the output of Square Butte’s 455 MW coal fired generating unit. Minnesota Power’s output entitlement under the Agreement is 50 percent for the remainder of the Agreement, subject to the provisions of the Minnkota Power PSA described in the following table. Minnesota Power’s payment obligation will be suspended if Square Butte fails to deliver any power, whether produced or purchased, for a period of one year. Square Butte’s costs consist primarily of debt service, operating and maintenance, depreciation and fuel expenses. As of December 31, 2024, Square Butte had total debt outstanding of $ 168.9 million. Annual debt service for Square Butte is expected to be approximately $ 30.6 million in 2025 and $ 32.1 million in 2026 of which Minnesota Power’s obligation is 50 percent. Fuel expenses are recoverable through Minnesota Power’s fuel adjustment clause and include the cost of coal purchased from BNI Energy under a long-term contract. </context> | us-gaap:LongTermContractForPurchaseOfElectricPowerAmountOfLongTermDebtOrLeaseObligationOutstanding |
Minnesota Power has a PPA with Square Butte that extends through 2026 (Agreement). Minnesota Power is obligated to pay its pro rata share of Square Butte’s costs based on its entitlement to the output of Square Butte’s 455 MW coal fired generating unit. Minnesota Power’s output entitlement under the Agreement is 50 percent for the remainder of the Agreement, subject to the provisions of the Minnkota Power PSA described in the following table. Minnesota Power’s payment obligation will be suspended if Square Butte fails to deliver any power, whether produced or purchased, for a period of one year. Square Butte’s costs consist primarily of debt service, operating and maintenance, depreciation and fuel expenses. As of December 31, 2024, Square Butte had total debt outstanding of $ 168.9 million. Annual debt service for Square Butte is expected to be approximately $ 30.6 million in 2025 and $ 32.1 million in 2026 of which Minnesota Power’s obligation is 50 percent. Fuel expenses are recoverable through Minnesota Power’s fuel adjustment clause and include the cost of coal purchased from BNI Energy under a long-term contract. | text | 30.6 | monetaryItemType | text: <entity> 30.6 </entity> <entity type> monetaryItemType </entity type> <context> Minnesota Power has a PPA with Square Butte that extends through 2026 (Agreement). Minnesota Power is obligated to pay its pro rata share of Square Butte’s costs based on its entitlement to the output of Square Butte’s 455 MW coal fired generating unit. Minnesota Power’s output entitlement under the Agreement is 50 percent for the remainder of the Agreement, subject to the provisions of the Minnkota Power PSA described in the following table. Minnesota Power’s payment obligation will be suspended if Square Butte fails to deliver any power, whether produced or purchased, for a period of one year. Square Butte’s costs consist primarily of debt service, operating and maintenance, depreciation and fuel expenses. As of December 31, 2024, Square Butte had total debt outstanding of $ 168.9 million. Annual debt service for Square Butte is expected to be approximately $ 30.6 million in 2025 and $ 32.1 million in 2026 of which Minnesota Power’s obligation is 50 percent. Fuel expenses are recoverable through Minnesota Power’s fuel adjustment clause and include the cost of coal purchased from BNI Energy under a long-term contract. </context> | us-gaap:LongTermContractForPurchaseOfElectricPowerAnnualMinimumDebtServicePaymentRequired |
Minnesota Power has a PPA with Square Butte that extends through 2026 (Agreement). Minnesota Power is obligated to pay its pro rata share of Square Butte’s costs based on its entitlement to the output of Square Butte’s 455 MW coal fired generating unit. Minnesota Power’s output entitlement under the Agreement is 50 percent for the remainder of the Agreement, subject to the provisions of the Minnkota Power PSA described in the following table. Minnesota Power’s payment obligation will be suspended if Square Butte fails to deliver any power, whether produced or purchased, for a period of one year. Square Butte’s costs consist primarily of debt service, operating and maintenance, depreciation and fuel expenses. As of December 31, 2024, Square Butte had total debt outstanding of $ 168.9 million. Annual debt service for Square Butte is expected to be approximately $ 30.6 million in 2025 and $ 32.1 million in 2026 of which Minnesota Power’s obligation is 50 percent. Fuel expenses are recoverable through Minnesota Power’s fuel adjustment clause and include the cost of coal purchased from BNI Energy under a long-term contract. | text | 32.1 | monetaryItemType | text: <entity> 32.1 </entity> <entity type> monetaryItemType </entity type> <context> Minnesota Power has a PPA with Square Butte that extends through 2026 (Agreement). Minnesota Power is obligated to pay its pro rata share of Square Butte’s costs based on its entitlement to the output of Square Butte’s 455 MW coal fired generating unit. Minnesota Power’s output entitlement under the Agreement is 50 percent for the remainder of the Agreement, subject to the provisions of the Minnkota Power PSA described in the following table. Minnesota Power’s payment obligation will be suspended if Square Butte fails to deliver any power, whether produced or purchased, for a period of one year. Square Butte’s costs consist primarily of debt service, operating and maintenance, depreciation and fuel expenses. As of December 31, 2024, Square Butte had total debt outstanding of $ 168.9 million. Annual debt service for Square Butte is expected to be approximately $ 30.6 million in 2025 and $ 32.1 million in 2026 of which Minnesota Power’s obligation is 50 percent. Fuel expenses are recoverable through Minnesota Power’s fuel adjustment clause and include the cost of coal purchased from BNI Energy under a long-term contract. </context> | us-gaap:LongTermContractForPurchaseOfElectricPowerAnnualMinimumDebtServicePaymentRequired |
Minnesota Power’s cost of power purchased from Square Butte during 2024 was $ 87.7 million ($ 86.2 million in 2023; $ 82.7 million in 2022). This reflects Minnesota Power’s pro rata share of total Square Butte costs based on the 50 percent output entitlement. Included in this amount was Minnesota Power’s pro rata share of interest expense of $ 4.9 million in 2024 ($ 5.5 million in 2023; $ 5.1 million in 2022). Minnesota Power’s payments to Square Butte are approved as a purchased power expense for ratemaking purposes by both the MPUC and the FERC. | text | 87.7 | monetaryItemType | text: <entity> 87.7 </entity> <entity type> monetaryItemType </entity type> <context> Minnesota Power’s cost of power purchased from Square Butte during 2024 was $ 87.7 million ($ 86.2 million in 2023; $ 82.7 million in 2022). This reflects Minnesota Power’s pro rata share of total Square Butte costs based on the 50 percent output entitlement. Included in this amount was Minnesota Power’s pro rata share of interest expense of $ 4.9 million in 2024 ($ 5.5 million in 2023; $ 5.1 million in 2022). Minnesota Power’s payments to Square Butte are approved as a purchased power expense for ratemaking purposes by both the MPUC and the FERC. </context> | us-gaap:UtilitiesOperatingExpensePurchasedPowerUnderLongTermContracts |
Minnesota Power’s cost of power purchased from Square Butte during 2024 was $ 87.7 million ($ 86.2 million in 2023; $ 82.7 million in 2022). This reflects Minnesota Power’s pro rata share of total Square Butte costs based on the 50 percent output entitlement. Included in this amount was Minnesota Power’s pro rata share of interest expense of $ 4.9 million in 2024 ($ 5.5 million in 2023; $ 5.1 million in 2022). Minnesota Power’s payments to Square Butte are approved as a purchased power expense for ratemaking purposes by both the MPUC and the FERC. | text | 86.2 | monetaryItemType | text: <entity> 86.2 </entity> <entity type> monetaryItemType </entity type> <context> Minnesota Power’s cost of power purchased from Square Butte during 2024 was $ 87.7 million ($ 86.2 million in 2023; $ 82.7 million in 2022). This reflects Minnesota Power’s pro rata share of total Square Butte costs based on the 50 percent output entitlement. Included in this amount was Minnesota Power’s pro rata share of interest expense of $ 4.9 million in 2024 ($ 5.5 million in 2023; $ 5.1 million in 2022). Minnesota Power’s payments to Square Butte are approved as a purchased power expense for ratemaking purposes by both the MPUC and the FERC. </context> | us-gaap:UtilitiesOperatingExpensePurchasedPowerUnderLongTermContracts |
Minnesota Power’s cost of power purchased from Square Butte during 2024 was $ 87.7 million ($ 86.2 million in 2023; $ 82.7 million in 2022). This reflects Minnesota Power’s pro rata share of total Square Butte costs based on the 50 percent output entitlement. Included in this amount was Minnesota Power’s pro rata share of interest expense of $ 4.9 million in 2024 ($ 5.5 million in 2023; $ 5.1 million in 2022). Minnesota Power’s payments to Square Butte are approved as a purchased power expense for ratemaking purposes by both the MPUC and the FERC. | text | 82.7 | monetaryItemType | text: <entity> 82.7 </entity> <entity type> monetaryItemType </entity type> <context> Minnesota Power’s cost of power purchased from Square Butte during 2024 was $ 87.7 million ($ 86.2 million in 2023; $ 82.7 million in 2022). This reflects Minnesota Power’s pro rata share of total Square Butte costs based on the 50 percent output entitlement. Included in this amount was Minnesota Power’s pro rata share of interest expense of $ 4.9 million in 2024 ($ 5.5 million in 2023; $ 5.1 million in 2022). Minnesota Power’s payments to Square Butte are approved as a purchased power expense for ratemaking purposes by both the MPUC and the FERC. </context> | us-gaap:UtilitiesOperatingExpensePurchasedPowerUnderLongTermContracts |
Minnesota Power’s cost of power purchased from Square Butte during 2024 was $ 87.7 million ($ 86.2 million in 2023; $ 82.7 million in 2022). This reflects Minnesota Power’s pro rata share of total Square Butte costs based on the 50 percent output entitlement. Included in this amount was Minnesota Power’s pro rata share of interest expense of $ 4.9 million in 2024 ($ 5.5 million in 2023; $ 5.1 million in 2022). Minnesota Power’s payments to Square Butte are approved as a purchased power expense for ratemaking purposes by both the MPUC and the FERC. | text | 50 | percentItemType | text: <entity> 50 </entity> <entity type> percentItemType </entity type> <context> Minnesota Power’s cost of power purchased from Square Butte during 2024 was $ 87.7 million ($ 86.2 million in 2023; $ 82.7 million in 2022). This reflects Minnesota Power’s pro rata share of total Square Butte costs based on the 50 percent output entitlement. Included in this amount was Minnesota Power’s pro rata share of interest expense of $ 4.9 million in 2024 ($ 5.5 million in 2023; $ 5.1 million in 2022). Minnesota Power’s payments to Square Butte are approved as a purchased power expense for ratemaking purposes by both the MPUC and the FERC. </context> | us-gaap:LongTermContractForPurchaseOfElectricPowerShareOfPlantOutputBeingPurchased |
Minnesota Power’s cost of power purchased from Square Butte during 2024 was $ 87.7 million ($ 86.2 million in 2023; $ 82.7 million in 2022). This reflects Minnesota Power’s pro rata share of total Square Butte costs based on the 50 percent output entitlement. Included in this amount was Minnesota Power’s pro rata share of interest expense of $ 4.9 million in 2024 ($ 5.5 million in 2023; $ 5.1 million in 2022). Minnesota Power’s payments to Square Butte are approved as a purchased power expense for ratemaking purposes by both the MPUC and the FERC. | text | 4.9 | monetaryItemType | text: <entity> 4.9 </entity> <entity type> monetaryItemType </entity type> <context> Minnesota Power’s cost of power purchased from Square Butte during 2024 was $ 87.7 million ($ 86.2 million in 2023; $ 82.7 million in 2022). This reflects Minnesota Power’s pro rata share of total Square Butte costs based on the 50 percent output entitlement. Included in this amount was Minnesota Power’s pro rata share of interest expense of $ 4.9 million in 2024 ($ 5.5 million in 2023; $ 5.1 million in 2022). Minnesota Power’s payments to Square Butte are approved as a purchased power expense for ratemaking purposes by both the MPUC and the FERC. </context> | us-gaap:LongTermContractForPurchaseOfElectricPowerInterestIncludedInContractCharges |
Minnesota Power’s cost of power purchased from Square Butte during 2024 was $ 87.7 million ($ 86.2 million in 2023; $ 82.7 million in 2022). This reflects Minnesota Power’s pro rata share of total Square Butte costs based on the 50 percent output entitlement. Included in this amount was Minnesota Power’s pro rata share of interest expense of $ 4.9 million in 2024 ($ 5.5 million in 2023; $ 5.1 million in 2022). Minnesota Power’s payments to Square Butte are approved as a purchased power expense for ratemaking purposes by both the MPUC and the FERC. | text | 5.5 | monetaryItemType | text: <entity> 5.5 </entity> <entity type> monetaryItemType </entity type> <context> Minnesota Power’s cost of power purchased from Square Butte during 2024 was $ 87.7 million ($ 86.2 million in 2023; $ 82.7 million in 2022). This reflects Minnesota Power’s pro rata share of total Square Butte costs based on the 50 percent output entitlement. Included in this amount was Minnesota Power’s pro rata share of interest expense of $ 4.9 million in 2024 ($ 5.5 million in 2023; $ 5.1 million in 2022). Minnesota Power’s payments to Square Butte are approved as a purchased power expense for ratemaking purposes by both the MPUC and the FERC. </context> | us-gaap:LongTermContractForPurchaseOfElectricPowerInterestIncludedInContractCharges |
Minnesota Power’s cost of power purchased from Square Butte during 2024 was $ 87.7 million ($ 86.2 million in 2023; $ 82.7 million in 2022). This reflects Minnesota Power’s pro rata share of total Square Butte costs based on the 50 percent output entitlement. Included in this amount was Minnesota Power’s pro rata share of interest expense of $ 4.9 million in 2024 ($ 5.5 million in 2023; $ 5.1 million in 2022). Minnesota Power’s payments to Square Butte are approved as a purchased power expense for ratemaking purposes by both the MPUC and the FERC. | text | 5.1 | monetaryItemType | text: <entity> 5.1 </entity> <entity type> monetaryItemType </entity type> <context> Minnesota Power’s cost of power purchased from Square Butte during 2024 was $ 87.7 million ($ 86.2 million in 2023; $ 82.7 million in 2022). This reflects Minnesota Power’s pro rata share of total Square Butte costs based on the 50 percent output entitlement. Included in this amount was Minnesota Power’s pro rata share of interest expense of $ 4.9 million in 2024 ($ 5.5 million in 2023; $ 5.1 million in 2022). Minnesota Power’s payments to Square Butte are approved as a purchased power expense for ratemaking purposes by both the MPUC and the FERC. </context> | us-gaap:LongTermContractForPurchaseOfElectricPowerInterestIncludedInContractCharges |
Minnesota Power is selling a portion of its entitlement from Square Butte to Minnkota Power, resulting in Minnkota Power’s net entitlement increasing and Minnesota Power’s net entitlement decreasing until Minnesota Power’s share is eliminated at the end of 2025. Of Minnesota Power’s 50 percent output entitlement, it sold to Minnkota Power approximately 41 percent in 2024 ( 37 percent in 2023 and 32 percent in 2022). (See Square Butte PPA.) | text | 50 | percentItemType | text: <entity> 50 </entity> <entity type> percentItemType </entity type> <context> Minnesota Power is selling a portion of its entitlement from Square Butte to Minnkota Power, resulting in Minnkota Power’s net entitlement increasing and Minnesota Power’s net entitlement decreasing until Minnesota Power’s share is eliminated at the end of 2025. Of Minnesota Power’s 50 percent output entitlement, it sold to Minnkota Power approximately 41 percent in 2024 ( 37 percent in 2023 and 32 percent in 2022). (See Square Butte PPA.) </context> | us-gaap:LongTermContractForPurchaseOfElectricPowerShareOfPlantOutputBeingPurchased |
Minnesota Power is selling a portion of its entitlement from Square Butte to Minnkota Power, resulting in Minnkota Power’s net entitlement increasing and Minnesota Power’s net entitlement decreasing until Minnesota Power’s share is eliminated at the end of 2025. Of Minnesota Power’s 50 percent output entitlement, it sold to Minnkota Power approximately 41 percent in 2024 ( 37 percent in 2023 and 32 percent in 2022). (See Square Butte PPA.) | text | 41 | percentItemType | text: <entity> 41 </entity> <entity type> percentItemType </entity type> <context> Minnesota Power is selling a portion of its entitlement from Square Butte to Minnkota Power, resulting in Minnkota Power’s net entitlement increasing and Minnesota Power’s net entitlement decreasing until Minnesota Power’s share is eliminated at the end of 2025. Of Minnesota Power’s 50 percent output entitlement, it sold to Minnkota Power approximately 41 percent in 2024 ( 37 percent in 2023 and 32 percent in 2022). (See Square Butte PPA.) </context> | us-gaap:LongTermContractForPurchaseOfElectricPowerShareOfPlantOutputBeingPurchased |
Minnesota Power is selling a portion of its entitlement from Square Butte to Minnkota Power, resulting in Minnkota Power’s net entitlement increasing and Minnesota Power’s net entitlement decreasing until Minnesota Power’s share is eliminated at the end of 2025. Of Minnesota Power’s 50 percent output entitlement, it sold to Minnkota Power approximately 41 percent in 2024 ( 37 percent in 2023 and 32 percent in 2022). (See Square Butte PPA.) | text | 37 | percentItemType | text: <entity> 37 </entity> <entity type> percentItemType </entity type> <context> Minnesota Power is selling a portion of its entitlement from Square Butte to Minnkota Power, resulting in Minnkota Power’s net entitlement increasing and Minnesota Power’s net entitlement decreasing until Minnesota Power’s share is eliminated at the end of 2025. Of Minnesota Power’s 50 percent output entitlement, it sold to Minnkota Power approximately 41 percent in 2024 ( 37 percent in 2023 and 32 percent in 2022). (See Square Butte PPA.) </context> | us-gaap:LongTermContractForPurchaseOfElectricPowerShareOfPlantOutputBeingPurchased |
Minnesota Power is selling a portion of its entitlement from Square Butte to Minnkota Power, resulting in Minnkota Power’s net entitlement increasing and Minnesota Power’s net entitlement decreasing until Minnesota Power’s share is eliminated at the end of 2025. Of Minnesota Power’s 50 percent output entitlement, it sold to Minnkota Power approximately 41 percent in 2024 ( 37 percent in 2023 and 32 percent in 2022). (See Square Butte PPA.) | text | 32 | percentItemType | text: <entity> 32 </entity> <entity type> percentItemType </entity type> <context> Minnesota Power is selling a portion of its entitlement from Square Butte to Minnkota Power, resulting in Minnkota Power’s net entitlement increasing and Minnesota Power’s net entitlement decreasing until Minnesota Power’s share is eliminated at the end of 2025. Of Minnesota Power’s 50 percent output entitlement, it sold to Minnkota Power approximately 41 percent in 2024 ( 37 percent in 2023 and 32 percent in 2022). (See Square Butte PPA.) </context> | us-gaap:LongTermContractForPurchaseOfElectricPowerShareOfPlantOutputBeingPurchased |
In 2015, the EPA published a final rule (2015 Rule) regulating CCR as nonhazardous waste under Subtitle D of the Resource Conservation and Recovery Act (RCRA) in the Federal Register. The rule included additional requirements for new landfill and impoundment construction as well as closure activities related to certain existing impoundments. Costs of compliance for Boswell and Laskin are expected to be incurred primarily over the next 12 years and be between approximately $ 65 million and $ 120 million. Compliance costs for CCR at Taconite Harbor are not expected to be material. Minnesota Power would seek recovery of additional costs through a rate proceeding. | text | 65 | monetaryItemType | text: <entity> 65 </entity> <entity type> monetaryItemType </entity type> <context> In 2015, the EPA published a final rule (2015 Rule) regulating CCR as nonhazardous waste under Subtitle D of the Resource Conservation and Recovery Act (RCRA) in the Federal Register. The rule included additional requirements for new landfill and impoundment construction as well as closure activities related to certain existing impoundments. Costs of compliance for Boswell and Laskin are expected to be incurred primarily over the next 12 years and be between approximately $ 65 million and $ 120 million. Compliance costs for CCR at Taconite Harbor are not expected to be material. Minnesota Power would seek recovery of additional costs through a rate proceeding. </context> | us-gaap:SiteContingencyLossExposureNotAccruedBestEstimate |
In 2015, the EPA published a final rule (2015 Rule) regulating CCR as nonhazardous waste under Subtitle D of the Resource Conservation and Recovery Act (RCRA) in the Federal Register. The rule included additional requirements for new landfill and impoundment construction as well as closure activities related to certain existing impoundments. Costs of compliance for Boswell and Laskin are expected to be incurred primarily over the next 12 years and be between approximately $ 65 million and $ 120 million. Compliance costs for CCR at Taconite Harbor are not expected to be material. Minnesota Power would seek recovery of additional costs through a rate proceeding. | text | 120 | monetaryItemType | text: <entity> 120 </entity> <entity type> monetaryItemType </entity type> <context> In 2015, the EPA published a final rule (2015 Rule) regulating CCR as nonhazardous waste under Subtitle D of the Resource Conservation and Recovery Act (RCRA) in the Federal Register. The rule included additional requirements for new landfill and impoundment construction as well as closure activities related to certain existing impoundments. Costs of compliance for Boswell and Laskin are expected to be incurred primarily over the next 12 years and be between approximately $ 65 million and $ 120 million. Compliance costs for CCR at Taconite Harbor are not expected to be material. Minnesota Power would seek recovery of additional costs through a rate proceeding. </context> | us-gaap:SiteContingencyLossExposureNotAccruedBestEstimate |
On May 8, 2024, the EPA's final CCR Legacy Impoundment Rule was published in the Federal Register. The final rule expands the scope of units regulated under the CCR rule to include legacy ponds (inactive surface impoundments at inactive facilities) and creates a new category of units called CCR management units (CCRMU), which includes inactive and closed impoundments and landfills as well as other non-containerized accumulations of CCR. The final rule requires all regulated generating facilities to evaluate and identify past deposits of CCR materials on their sites and close or re-close existing CCR units to meet current closure standards, as well as install groundwater monitoring systems, conduct groundwater monitoring, and implement groundwater corrective actions as necessary. The Final Rule requires a Facility Evaluation Report by February 2027, which will identify regulated units and applicable requirements. Additionally, the EPA finalized portions of the proposed CCR Part B Rule, which allows CCR units to certify closure while conducting groundwater remediation activities. Impacts to previously closed CCR units at Boswell and Laskin are anticipated. Compliance costs for Minnesota Power’s Boswell and Laskin facilities are estimated to be between approximately $ 50 million and $ 85 million and are expected to be incurred over the next 10 years based on our preliminary assessment. These estimates may be revised as Minnesota Power completes the required facility evaluations. Minnesota Power is expected to seek recovery of these costs through a rate proceeding. | text | 50 | monetaryItemType | text: <entity> 50 </entity> <entity type> monetaryItemType </entity type> <context> On May 8, 2024, the EPA's final CCR Legacy Impoundment Rule was published in the Federal Register. The final rule expands the scope of units regulated under the CCR rule to include legacy ponds (inactive surface impoundments at inactive facilities) and creates a new category of units called CCR management units (CCRMU), which includes inactive and closed impoundments and landfills as well as other non-containerized accumulations of CCR. The final rule requires all regulated generating facilities to evaluate and identify past deposits of CCR materials on their sites and close or re-close existing CCR units to meet current closure standards, as well as install groundwater monitoring systems, conduct groundwater monitoring, and implement groundwater corrective actions as necessary. The Final Rule requires a Facility Evaluation Report by February 2027, which will identify regulated units and applicable requirements. Additionally, the EPA finalized portions of the proposed CCR Part B Rule, which allows CCR units to certify closure while conducting groundwater remediation activities. Impacts to previously closed CCR units at Boswell and Laskin are anticipated. Compliance costs for Minnesota Power’s Boswell and Laskin facilities are estimated to be between approximately $ 50 million and $ 85 million and are expected to be incurred over the next 10 years based on our preliminary assessment. These estimates may be revised as Minnesota Power completes the required facility evaluations. Minnesota Power is expected to seek recovery of these costs through a rate proceeding. </context> | us-gaap:SiteContingencyLossExposureNotAccruedBestEstimate |
On May 8, 2024, the EPA's final CCR Legacy Impoundment Rule was published in the Federal Register. The final rule expands the scope of units regulated under the CCR rule to include legacy ponds (inactive surface impoundments at inactive facilities) and creates a new category of units called CCR management units (CCRMU), which includes inactive and closed impoundments and landfills as well as other non-containerized accumulations of CCR. The final rule requires all regulated generating facilities to evaluate and identify past deposits of CCR materials on their sites and close or re-close existing CCR units to meet current closure standards, as well as install groundwater monitoring systems, conduct groundwater monitoring, and implement groundwater corrective actions as necessary. The Final Rule requires a Facility Evaluation Report by February 2027, which will identify regulated units and applicable requirements. Additionally, the EPA finalized portions of the proposed CCR Part B Rule, which allows CCR units to certify closure while conducting groundwater remediation activities. Impacts to previously closed CCR units at Boswell and Laskin are anticipated. Compliance costs for Minnesota Power’s Boswell and Laskin facilities are estimated to be between approximately $ 50 million and $ 85 million and are expected to be incurred over the next 10 years based on our preliminary assessment. These estimates may be revised as Minnesota Power completes the required facility evaluations. Minnesota Power is expected to seek recovery of these costs through a rate proceeding. | text | 85 | monetaryItemType | text: <entity> 85 </entity> <entity type> monetaryItemType </entity type> <context> On May 8, 2024, the EPA's final CCR Legacy Impoundment Rule was published in the Federal Register. The final rule expands the scope of units regulated under the CCR rule to include legacy ponds (inactive surface impoundments at inactive facilities) and creates a new category of units called CCR management units (CCRMU), which includes inactive and closed impoundments and landfills as well as other non-containerized accumulations of CCR. The final rule requires all regulated generating facilities to evaluate and identify past deposits of CCR materials on their sites and close or re-close existing CCR units to meet current closure standards, as well as install groundwater monitoring systems, conduct groundwater monitoring, and implement groundwater corrective actions as necessary. The Final Rule requires a Facility Evaluation Report by February 2027, which will identify regulated units and applicable requirements. Additionally, the EPA finalized portions of the proposed CCR Part B Rule, which allows CCR units to certify closure while conducting groundwater remediation activities. Impacts to previously closed CCR units at Boswell and Laskin are anticipated. Compliance costs for Minnesota Power’s Boswell and Laskin facilities are estimated to be between approximately $ 50 million and $ 85 million and are expected to be incurred over the next 10 years based on our preliminary assessment. These estimates may be revised as Minnesota Power completes the required facility evaluations. Minnesota Power is expected to seek recovery of these costs through a rate proceeding. </context> | us-gaap:SiteContingencyLossExposureNotAccruedBestEstimate |
We have multiple credit facility agreements in place that provide the ability to issue standby letters of credit to satisfy our contractual security requirements across our businesses. As of December 31, 2024, we had $ 134.7 million of outstanding letters of credit issued, including those issued under our revolving credit facility, and $ 122.2 million in outstanding surety bonds. We do not believe it is likely that any of these outstanding letters of credit will be drawn upon. | text | 134.7 | monetaryItemType | text: <entity> 134.7 </entity> <entity type> monetaryItemType </entity type> <context> We have multiple credit facility agreements in place that provide the ability to issue standby letters of credit to satisfy our contractual security requirements across our businesses. As of December 31, 2024, we had $ 134.7 million of outstanding letters of credit issued, including those issued under our revolving credit facility, and $ 122.2 million in outstanding surety bonds. We do not believe it is likely that any of these outstanding letters of credit will be drawn upon. </context> | us-gaap:LettersOfCreditOutstandingAmount |
We have multiple credit facility agreements in place that provide the ability to issue standby letters of credit to satisfy our contractual security requirements across our businesses. As of December 31, 2024, we had $ 134.7 million of outstanding letters of credit issued, including those issued under our revolving credit facility, and $ 122.2 million in outstanding surety bonds. We do not believe it is likely that any of these outstanding letters of credit will be drawn upon. | text | 122.2 | monetaryItemType | text: <entity> 122.2 </entity> <entity type> monetaryItemType </entity type> <context> We have multiple credit facility agreements in place that provide the ability to issue standby letters of credit to satisfy our contractual security requirements across our businesses. As of December 31, 2024, we had $ 134.7 million of outstanding letters of credit issued, including those issued under our revolving credit facility, and $ 122.2 million in outstanding surety bonds. We do not believe it is likely that any of these outstanding letters of credit will be drawn upon. </context> | us-gaap:LettersOfCreditOutstandingAmount |
. As of December 31, 2024, BNI Energy had surety bonds outstanding of $ 88.8 million related to the reclamation liability for closing costs associated with its mine and mine facilities. Although its coal supply agreements obligate the customers to provide for the closing costs, additional assurance is required by federal and state regulations. BNI Energy’s total reclamation liability is currently estimated at $ 82.1 million. BNI Energy does not believe it is likely that any of these outstanding surety bonds will be drawn upon. | text | 82.1 | monetaryItemType | text: <entity> 82.1 </entity> <entity type> monetaryItemType </entity type> <context> . As of December 31, 2024, BNI Energy had surety bonds outstanding of $ 88.8 million related to the reclamation liability for closing costs associated with its mine and mine facilities. Although its coal supply agreements obligate the customers to provide for the closing costs, additional assurance is required by federal and state regulations. BNI Energy’s total reclamation liability is currently estimated at $ 82.1 million. BNI Energy does not believe it is likely that any of these outstanding surety bonds will be drawn upon. </context> | us-gaap:GuaranteeObligationsMaximumExposure |
. Nobles 2 wind energy facility requires standby letters of credit as security for certain contractual obligations. As of December 31, 2024, ALLETE South Wind has $ 10.1 million outstanding in standby letters of credit, related to our portion of the security requirements relative to our ownership in Nobles 2. | text | 10.1 | monetaryItemType | text: <entity> 10.1 </entity> <entity type> monetaryItemType </entity type> <context> . Nobles 2 wind energy facility requires standby letters of credit as security for certain contractual obligations. As of December 31, 2024, ALLETE South Wind has $ 10.1 million outstanding in standby letters of credit, related to our portion of the security requirements relative to our ownership in Nobles 2. </context> | us-gaap:LettersOfCreditOutstandingAmount |
. As of December 31, 2024, South Shore Energy had $ 29.7 million outstanding in standby letters of credit pledged as security in connection with the development of NTEC. | text | 29.7 | monetaryItemType | text: <entity> 29.7 </entity> <entity type> monetaryItemType </entity type> <context> . As of December 31, 2024, South Shore Energy had $ 29.7 million outstanding in standby letters of credit pledged as security in connection with the development of NTEC. </context> | us-gaap:LettersOfCreditOutstandingAmount |
. As of December 31, 2024, ALLETE Properties had surety bonds outstanding to governmental entities totaling $ 2.0 million primarily related to development and maintenance obligations for various projects. The estimated cost of the remaining development work is $ 1.0 million. ALLETE Properties does not believe it is likely that any of these outstanding surety bonds will be drawn upon. | text | 1.0 | monetaryItemType | text: <entity> 1.0 </entity> <entity type> monetaryItemType </entity type> <context> . As of December 31, 2024, ALLETE Properties had surety bonds outstanding to governmental entities totaling $ 2.0 million primarily related to development and maintenance obligations for various projects. The estimated cost of the remaining development work is $ 1.0 million. ALLETE Properties does not believe it is likely that any of these outstanding surety bonds will be drawn upon. </context> | us-gaap:GuaranteeObligationsMaximumExposure |
In 2005, the Town Center District issued $ 26.4 million of tax-exempt, 6.0 percent capital improvement revenue bonds. The capital improvement revenue bonds are payable over 31 years (by May 1, 2036) and are secured by special assessments on the benefited land. To the extent that ALLETE Properties still owns land at the time of the assessment, it will incur the cost of its portion of these assessments, based upon its ownership of benefited property. | text | 26.4 | monetaryItemType | text: <entity> 26.4 </entity> <entity type> monetaryItemType </entity type> <context> In 2005, the Town Center District issued $ 26.4 million of tax-exempt, 6.0 percent capital improvement revenue bonds. The capital improvement revenue bonds are payable over 31 years (by May 1, 2036) and are secured by special assessments on the benefited land. To the extent that ALLETE Properties still owns land at the time of the assessment, it will incur the cost of its portion of these assessments, based upon its ownership of benefited property. </context> | us-gaap:FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability |
. In the first quarter of 2023, an ALLETE Clean Energy subsidiary initiated arbitration proceedings seeking damages against a counterparty for non-performance under a contract. Arbitration hearings were held in June and July 2023, and a final arbitration ruling was issued in favor of ALLETE Clean Energy’s subsidiary in September 2023. The final arbitration ruling awarded $ 68.3 million to ALLETE Clean Energy’s subsidiary, which included prejudgment interest of $ 5.1 million, recovery of $ 3.6 million of arbitration-related costs, and resulted in the recognition of a $ 58.4 million pre-tax gain in the third quarter of 2023. The arbitration ruling also resulted in the receipt of approximately $ 60 million of cash, net of distribution to non-controlling interest, in the third quarter of 2023. | text | 60 | monetaryItemType | text: <entity> 60 </entity> <entity type> monetaryItemType </entity type> <context> . In the first quarter of 2023, an ALLETE Clean Energy subsidiary initiated arbitration proceedings seeking damages against a counterparty for non-performance under a contract. Arbitration hearings were held in June and July 2023, and a final arbitration ruling was issued in favor of ALLETE Clean Energy’s subsidiary in September 2023. The final arbitration ruling awarded $ 68.3 million to ALLETE Clean Energy’s subsidiary, which included prejudgment interest of $ 5.1 million, recovery of $ 3.6 million of arbitration-related costs, and resulted in the recognition of a $ 58.4 million pre-tax gain in the third quarter of 2023. The arbitration ruling also resulted in the receipt of approximately $ 60 million of cash, net of distribution to non-controlling interest, in the third quarter of 2023. </context> | us-gaap:ProceedsFromLegalSettlements |
We entered into a distribution agreement with Lampert Capital Markets, in 2008, as amended most recently in 2020, with respect to the issuance and sale of up to an aggregate of 13.6 million shares of our common stock, without par value, of which 2.1 million shares remain available for issuance as of December 31, 2024. For the year ended December 31, 2024, no shares of common stock were issued under this agreement ( none in 2023; none in 2022). On April 5, 2022, ALLETE issued and sold approximately 3.7 million shares of ALLETE common stock. Net proceeds of approximately $ 224 million were received from the sale of shares. Proceeds were used primarily to fund the acquisition of New Energy and capital investments at ALLETE Clean Energy. | text | no | sharesItemType | text: <entity> no </entity> <entity type> sharesItemType </entity type> <context> We entered into a distribution agreement with Lampert Capital Markets, in 2008, as amended most recently in 2020, with respect to the issuance and sale of up to an aggregate of 13.6 million shares of our common stock, without par value, of which 2.1 million shares remain available for issuance as of December 31, 2024. For the year ended December 31, 2024, no shares of common stock were issued under this agreement ( none in 2023; none in 2022). On April 5, 2022, ALLETE issued and sold approximately 3.7 million shares of ALLETE common stock. Net proceeds of approximately $ 224 million were received from the sale of shares. Proceeds were used primarily to fund the acquisition of New Energy and capital investments at ALLETE Clean Energy. </context> | us-gaap:StockIssuedDuringPeriodSharesOther |
We entered into a distribution agreement with Lampert Capital Markets, in 2008, as amended most recently in 2020, with respect to the issuance and sale of up to an aggregate of 13.6 million shares of our common stock, without par value, of which 2.1 million shares remain available for issuance as of December 31, 2024. For the year ended December 31, 2024, no shares of common stock were issued under this agreement ( none in 2023; none in 2022). On April 5, 2022, ALLETE issued and sold approximately 3.7 million shares of ALLETE common stock. Net proceeds of approximately $ 224 million were received from the sale of shares. Proceeds were used primarily to fund the acquisition of New Energy and capital investments at ALLETE Clean Energy. | text | none | sharesItemType | text: <entity> none </entity> <entity type> sharesItemType </entity type> <context> We entered into a distribution agreement with Lampert Capital Markets, in 2008, as amended most recently in 2020, with respect to the issuance and sale of up to an aggregate of 13.6 million shares of our common stock, without par value, of which 2.1 million shares remain available for issuance as of December 31, 2024. For the year ended December 31, 2024, no shares of common stock were issued under this agreement ( none in 2023; none in 2022). On April 5, 2022, ALLETE issued and sold approximately 3.7 million shares of ALLETE common stock. Net proceeds of approximately $ 224 million were received from the sale of shares. Proceeds were used primarily to fund the acquisition of New Energy and capital investments at ALLETE Clean Energy. </context> | us-gaap:StockIssuedDuringPeriodSharesOther |
We entered into a distribution agreement with Lampert Capital Markets, in 2008, as amended most recently in 2020, with respect to the issuance and sale of up to an aggregate of 13.6 million shares of our common stock, without par value, of which 2.1 million shares remain available for issuance as of December 31, 2024. For the year ended December 31, 2024, no shares of common stock were issued under this agreement ( none in 2023; none in 2022). On April 5, 2022, ALLETE issued and sold approximately 3.7 million shares of ALLETE common stock. Net proceeds of approximately $ 224 million were received from the sale of shares. Proceeds were used primarily to fund the acquisition of New Energy and capital investments at ALLETE Clean Energy. | text | 3.7 | sharesItemType | text: <entity> 3.7 </entity> <entity type> sharesItemType </entity type> <context> We entered into a distribution agreement with Lampert Capital Markets, in 2008, as amended most recently in 2020, with respect to the issuance and sale of up to an aggregate of 13.6 million shares of our common stock, without par value, of which 2.1 million shares remain available for issuance as of December 31, 2024. For the year ended December 31, 2024, no shares of common stock were issued under this agreement ( none in 2023; none in 2022). On April 5, 2022, ALLETE issued and sold approximately 3.7 million shares of ALLETE common stock. Net proceeds of approximately $ 224 million were received from the sale of shares. Proceeds were used primarily to fund the acquisition of New Energy and capital investments at ALLETE Clean Energy. </context> | us-gaap:StockIssuedDuringPeriodSharesNewIssues |
We entered into a distribution agreement with Lampert Capital Markets, in 2008, as amended most recently in 2020, with respect to the issuance and sale of up to an aggregate of 13.6 million shares of our common stock, without par value, of which 2.1 million shares remain available for issuance as of December 31, 2024. For the year ended December 31, 2024, no shares of common stock were issued under this agreement ( none in 2023; none in 2022). On April 5, 2022, ALLETE issued and sold approximately 3.7 million shares of ALLETE common stock. Net proceeds of approximately $ 224 million were received from the sale of shares. Proceeds were used primarily to fund the acquisition of New Energy and capital investments at ALLETE Clean Energy. | text | 224 | monetaryItemType | text: <entity> 224 </entity> <entity type> monetaryItemType </entity type> <context> We entered into a distribution agreement with Lampert Capital Markets, in 2008, as amended most recently in 2020, with respect to the issuance and sale of up to an aggregate of 13.6 million shares of our common stock, without par value, of which 2.1 million shares remain available for issuance as of December 31, 2024. For the year ended December 31, 2024, no shares of common stock were issued under this agreement ( none in 2023; none in 2022). On April 5, 2022, ALLETE issued and sold approximately 3.7 million shares of ALLETE common stock. Net proceeds of approximately $ 224 million were received from the sale of shares. Proceeds were used primarily to fund the acquisition of New Energy and capital investments at ALLETE Clean Energy. </context> | us-gaap:StockIssuedDuringPeriodValueNewIssues |
The effective tax rate was an expense of 3.7 percent for 2024 (expense of 13.5 percent for 2023; benefit of 31.2 percent for 2022). The 2024, 2023 and 2022 effective tax rates were primarily impacted by tax credits and non-controlling interests in subsidiaries. | text | 3.7 | percentItemType | text: <entity> 3.7 </entity> <entity type> percentItemType </entity type> <context> The effective tax rate was an expense of 3.7 percent for 2024 (expense of 13.5 percent for 2023; benefit of 31.2 percent for 2022). The 2024, 2023 and 2022 effective tax rates were primarily impacted by tax credits and non-controlling interests in subsidiaries. </context> | us-gaap:EffectiveIncomeTaxRateContinuingOperations |
The effective tax rate was an expense of 3.7 percent for 2024 (expense of 13.5 percent for 2023; benefit of 31.2 percent for 2022). The 2024, 2023 and 2022 effective tax rates were primarily impacted by tax credits and non-controlling interests in subsidiaries. | text | 13.5 | percentItemType | text: <entity> 13.5 </entity> <entity type> percentItemType </entity type> <context> The effective tax rate was an expense of 3.7 percent for 2024 (expense of 13.5 percent for 2023; benefit of 31.2 percent for 2022). The 2024, 2023 and 2022 effective tax rates were primarily impacted by tax credits and non-controlling interests in subsidiaries. </context> | us-gaap:EffectiveIncomeTaxRateContinuingOperations |
The effective tax rate was an expense of 3.7 percent for 2024 (expense of 13.5 percent for 2023; benefit of 31.2 percent for 2022). The 2024, 2023 and 2022 effective tax rates were primarily impacted by tax credits and non-controlling interests in subsidiaries. | text | 31.2 | percentItemType | text: <entity> 31.2 </entity> <entity type> percentItemType </entity type> <context> The effective tax rate was an expense of 3.7 percent for 2024 (expense of 13.5 percent for 2023; benefit of 31.2 percent for 2022). The 2024, 2023 and 2022 effective tax rates were primarily impacted by tax credits and non-controlling interests in subsidiaries. </context> | us-gaap:EffectiveIncomeTaxRateContinuingOperations |
Pre-tax amounts; state NOL carryforwards net of a $ 9.7 million valuation allowance. | text | 9.7 | monetaryItemType | text: <entity> 9.7 </entity> <entity type> monetaryItemType </entity type> <context> Pre-tax amounts; state NOL carryforwards net of a $ 9.7 million valuation allowance. </context> | us-gaap:OperatingLossCarryforwardsValuationAllowance |
Net of a $ 42.3 million valuation allowance as of December 31, 2024 ($ 55.4 million as of December 31, 2023). | text | 42.3 | monetaryItemType | text: <entity> 42.3 </entity> <entity type> monetaryItemType </entity type> <context> Net of a $ 42.3 million valuation allowance as of December 31, 2024 ($ 55.4 million as of December 31, 2023). </context> | us-gaap:TaxCreditCarryforwardValuationAllowance |
Net of a $ 42.3 million valuation allowance as of December 31, 2024 ($ 55.4 million as of December 31, 2023). | text | 55.4 | monetaryItemType | text: <entity> 55.4 </entity> <entity type> monetaryItemType </entity type> <context> Net of a $ 42.3 million valuation allowance as of December 31, 2024 ($ 55.4 million as of December 31, 2023). </context> | us-gaap:TaxCreditCarryforwardValuationAllowance |
The federal tax credit carryforward periods expire between 2035 and 2044. We expect to fully utilize the tax credit carryforwards; therefore, no federal valuation allowance has been recognized as of December 31, 2024. The apportioned state NOL, capital loss and tax credit carryforward periods expire between 2025 and 2045. We have established a valuation allowance against certain state NOL, capital loss and tax credits that we do not expect to utilize before their expiration. | text | no | monetaryItemType | text: <entity> no </entity> <entity type> monetaryItemType </entity type> <context> The federal tax credit carryforward periods expire between 2035 and 2044. We expect to fully utilize the tax credit carryforwards; therefore, no federal valuation allowance has been recognized as of December 31, 2024. The apportioned state NOL, capital loss and tax credit carryforward periods expire between 2025 and 2045. We have established a valuation allowance against certain state NOL, capital loss and tax credits that we do not expect to utilize before their expiration. </context> | us-gaap:OperatingLossCarryforwardsValuationAllowance |
Unrecognized tax benefits are the differences between a tax position taken or expected to be taken in a tax return and the benefit recognized and measured pursuant to the “more-likely-than-not” criteria. The unrecognized tax benefit balance includes permanent tax positions which, if recognized, would affect the annual effective income tax rate. In addition, the unrecognized tax benefit balance includes temporary tax positions for which the ultimate deductibility is highly certain but for which there is uncertainty about the timing of such deductibility. A change in the period of deductibility would not affect the effective tax rate but would accelerate the payment of cash to the taxing authority to an earlier period. The gross unrecognized tax benefits as of December 31, 2024, included $ 0.6 million of net unrecognized tax benefits which, if recognized, would affect the annual effective income tax rate. | text | 0.6 | monetaryItemType | text: <entity> 0.6 </entity> <entity type> monetaryItemType </entity type> <context> Unrecognized tax benefits are the differences between a tax position taken or expected to be taken in a tax return and the benefit recognized and measured pursuant to the “more-likely-than-not” criteria. The unrecognized tax benefit balance includes permanent tax positions which, if recognized, would affect the annual effective income tax rate. In addition, the unrecognized tax benefit balance includes temporary tax positions for which the ultimate deductibility is highly certain but for which there is uncertainty about the timing of such deductibility. A change in the period of deductibility would not affect the effective tax rate but would accelerate the payment of cash to the taxing authority to an earlier period. The gross unrecognized tax benefits as of December 31, 2024, included $ 0.6 million of net unrecognized tax benefits which, if recognized, would affect the annual effective income tax rate. </context> | us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate |
As of December 31, 2024, we had accrued interest of $ 0.2 million ($ 0.1 million as of December 31, 2023; none as of December 31, 2022) related to unrecognized tax benefits included on the Consolidated Balance Sheet due to our NOL carryforwards. We classify interest related to unrecognized tax benefits as interest expense and tax-related penalties in operating expenses on the Consolidated Statement of Income. Interest expense related to unrecognized tax benefits on the Consolidated Statement of Income was immaterial in 2024, 2023 and 2022. There were no penalties recognized in 2024, 2023 or 2022. The unrecognized tax benefit amounts have been presented as an increase to the net deferred tax liability on the Consolidated Balance Sheet. | text | 0.2 | monetaryItemType | text: <entity> 0.2 </entity> <entity type> monetaryItemType </entity type> <context> As of December 31, 2024, we had accrued interest of $ 0.2 million ($ 0.1 million as of December 31, 2023; none as of December 31, 2022) related to unrecognized tax benefits included on the Consolidated Balance Sheet due to our NOL carryforwards. We classify interest related to unrecognized tax benefits as interest expense and tax-related penalties in operating expenses on the Consolidated Statement of Income. Interest expense related to unrecognized tax benefits on the Consolidated Statement of Income was immaterial in 2024, 2023 and 2022. There were no penalties recognized in 2024, 2023 or 2022. The unrecognized tax benefit amounts have been presented as an increase to the net deferred tax liability on the Consolidated Balance Sheet. </context> | us-gaap:UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued |
As of December 31, 2024, we had accrued interest of $ 0.2 million ($ 0.1 million as of December 31, 2023; none as of December 31, 2022) related to unrecognized tax benefits included on the Consolidated Balance Sheet due to our NOL carryforwards. We classify interest related to unrecognized tax benefits as interest expense and tax-related penalties in operating expenses on the Consolidated Statement of Income. Interest expense related to unrecognized tax benefits on the Consolidated Statement of Income was immaterial in 2024, 2023 and 2022. There were no penalties recognized in 2024, 2023 or 2022. The unrecognized tax benefit amounts have been presented as an increase to the net deferred tax liability on the Consolidated Balance Sheet. | text | 0.1 | monetaryItemType | text: <entity> 0.1 </entity> <entity type> monetaryItemType </entity type> <context> As of December 31, 2024, we had accrued interest of $ 0.2 million ($ 0.1 million as of December 31, 2023; none as of December 31, 2022) related to unrecognized tax benefits included on the Consolidated Balance Sheet due to our NOL carryforwards. We classify interest related to unrecognized tax benefits as interest expense and tax-related penalties in operating expenses on the Consolidated Statement of Income. Interest expense related to unrecognized tax benefits on the Consolidated Statement of Income was immaterial in 2024, 2023 and 2022. There were no penalties recognized in 2024, 2023 or 2022. The unrecognized tax benefit amounts have been presented as an increase to the net deferred tax liability on the Consolidated Balance Sheet. </context> | us-gaap:UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued |
As of December 31, 2024, we had accrued interest of $ 0.2 million ($ 0.1 million as of December 31, 2023; none as of December 31, 2022) related to unrecognized tax benefits included on the Consolidated Balance Sheet due to our NOL carryforwards. We classify interest related to unrecognized tax benefits as interest expense and tax-related penalties in operating expenses on the Consolidated Statement of Income. Interest expense related to unrecognized tax benefits on the Consolidated Statement of Income was immaterial in 2024, 2023 and 2022. There were no penalties recognized in 2024, 2023 or 2022. The unrecognized tax benefit amounts have been presented as an increase to the net deferred tax liability on the Consolidated Balance Sheet. | text | none | monetaryItemType | text: <entity> none </entity> <entity type> monetaryItemType </entity type> <context> As of December 31, 2024, we had accrued interest of $ 0.2 million ($ 0.1 million as of December 31, 2023; none as of December 31, 2022) related to unrecognized tax benefits included on the Consolidated Balance Sheet due to our NOL carryforwards. We classify interest related to unrecognized tax benefits as interest expense and tax-related penalties in operating expenses on the Consolidated Statement of Income. Interest expense related to unrecognized tax benefits on the Consolidated Statement of Income was immaterial in 2024, 2023 and 2022. There were no penalties recognized in 2024, 2023 or 2022. The unrecognized tax benefit amounts have been presented as an increase to the net deferred tax liability on the Consolidated Balance Sheet. </context> | us-gaap:UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued |
No material changes to unrecognized tax benefits are expected during the next 12 months. | text | No | monetaryItemType | text: <entity> No </entity> <entity type> monetaryItemType </entity type> <context> No material changes to unrecognized tax benefits are expected during the next 12 months. </context> | us-gaap:SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit |
We have noncontributory union, non-union and combined retiree defined benefit pension plans covering eligible employees. The combined retiree defined benefit pension plan was created in 2016, to include all union and non-union retirees from the existing plans as of January 2016. The plans provide defined benefits based on years of service and final average pay. We made $ 25.0 million in cash contributions to the plan trusts in 2024 ($ 17.3 million in 2023; none in 2022). We also have a defined contribution RSOP covering substantially all employees. The 2024 plan year employer contributions totaled $ 15.7 million ($ 13.7 million for the 2023 plan year; $ 12.0 million for the 2022 plan year). (See Note 10. Common Stock and Earnings Per Share and Note 13. Employee Stock and Incentive Plans.) | text | 15.7 | monetaryItemType | text: <entity> 15.7 </entity> <entity type> monetaryItemType </entity type> <context> We have noncontributory union, non-union and combined retiree defined benefit pension plans covering eligible employees. The combined retiree defined benefit pension plan was created in 2016, to include all union and non-union retirees from the existing plans as of January 2016. The plans provide defined benefits based on years of service and final average pay. We made $ 25.0 million in cash contributions to the plan trusts in 2024 ($ 17.3 million in 2023; none in 2022). We also have a defined contribution RSOP covering substantially all employees. The 2024 plan year employer contributions totaled $ 15.7 million ($ 13.7 million for the 2023 plan year; $ 12.0 million for the 2022 plan year). (See Note 10. Common Stock and Earnings Per Share and Note 13. Employee Stock and Incentive Plans.) </context> | us-gaap:EmployeeStockOwnershipPlanESOPCompensationExpense |
We have noncontributory union, non-union and combined retiree defined benefit pension plans covering eligible employees. The combined retiree defined benefit pension plan was created in 2016, to include all union and non-union retirees from the existing plans as of January 2016. The plans provide defined benefits based on years of service and final average pay. We made $ 25.0 million in cash contributions to the plan trusts in 2024 ($ 17.3 million in 2023; none in 2022). We also have a defined contribution RSOP covering substantially all employees. The 2024 plan year employer contributions totaled $ 15.7 million ($ 13.7 million for the 2023 plan year; $ 12.0 million for the 2022 plan year). (See Note 10. Common Stock and Earnings Per Share and Note 13. Employee Stock and Incentive Plans.) | text | 13.7 | monetaryItemType | text: <entity> 13.7 </entity> <entity type> monetaryItemType </entity type> <context> We have noncontributory union, non-union and combined retiree defined benefit pension plans covering eligible employees. The combined retiree defined benefit pension plan was created in 2016, to include all union and non-union retirees from the existing plans as of January 2016. The plans provide defined benefits based on years of service and final average pay. We made $ 25.0 million in cash contributions to the plan trusts in 2024 ($ 17.3 million in 2023; none in 2022). We also have a defined contribution RSOP covering substantially all employees. The 2024 plan year employer contributions totaled $ 15.7 million ($ 13.7 million for the 2023 plan year; $ 12.0 million for the 2022 plan year). (See Note 10. Common Stock and Earnings Per Share and Note 13. Employee Stock and Incentive Plans.) </context> | us-gaap:EmployeeStockOwnershipPlanESOPCompensationExpense |
We have noncontributory union, non-union and combined retiree defined benefit pension plans covering eligible employees. The combined retiree defined benefit pension plan was created in 2016, to include all union and non-union retirees from the existing plans as of January 2016. The plans provide defined benefits based on years of service and final average pay. We made $ 25.0 million in cash contributions to the plan trusts in 2024 ($ 17.3 million in 2023; none in 2022). We also have a defined contribution RSOP covering substantially all employees. The 2024 plan year employer contributions totaled $ 15.7 million ($ 13.7 million for the 2023 plan year; $ 12.0 million for the 2022 plan year). (See Note 10. Common Stock and Earnings Per Share and Note 13. Employee Stock and Incentive Plans.) | text | 12.0 | monetaryItemType | text: <entity> 12.0 </entity> <entity type> monetaryItemType </entity type> <context> We have noncontributory union, non-union and combined retiree defined benefit pension plans covering eligible employees. The combined retiree defined benefit pension plan was created in 2016, to include all union and non-union retirees from the existing plans as of January 2016. The plans provide defined benefits based on years of service and final average pay. We made $ 25.0 million in cash contributions to the plan trusts in 2024 ($ 17.3 million in 2023; none in 2022). We also have a defined contribution RSOP covering substantially all employees. The 2024 plan year employer contributions totaled $ 15.7 million ($ 13.7 million for the 2023 plan year; $ 12.0 million for the 2022 plan year). (See Note 10. Common Stock and Earnings Per Share and Note 13. Employee Stock and Incentive Plans.) </context> | us-gaap:EmployeeStockOwnershipPlanESOPCompensationExpense |
We have postretirement health care and life insurance plans covering eligible employees. In 2010, the postretirement health care plan was closed to employees hired after January 2011, and the eligibility requirements were amended. The postretirement life plan was amended in 2014 to close the plan to non-union employees retiring after 2015, and in 2018, the plan was amended to limit the benefit level for union employees retiring after 2018. In 2023, the postretirement health care plan was amended to change the company contribution to an annual stipend for certain retirees. The postretirement health and life plans are contributory with participant contributions adjusted annually. Postretirement health and life benefits are funded through a combination of Voluntary Employee Benefit Association trusts (VEBAs), established under section 501(c)(9) of the Internal Revenue Code, and irrevocable grantor trusts. In 2024, no contributions were made to the VEBAs ( none in 2023; none in 2022) and no contributions were made to the grantor trusts ( none in 2023; none in 2022). | text | no | monetaryItemType | text: <entity> no </entity> <entity type> monetaryItemType </entity type> <context> We have postretirement health care and life insurance plans covering eligible employees. In 2010, the postretirement health care plan was closed to employees hired after January 2011, and the eligibility requirements were amended. The postretirement life plan was amended in 2014 to close the plan to non-union employees retiring after 2015, and in 2018, the plan was amended to limit the benefit level for union employees retiring after 2018. In 2023, the postretirement health care plan was amended to change the company contribution to an annual stipend for certain retirees. The postretirement health and life plans are contributory with participant contributions adjusted annually. Postretirement health and life benefits are funded through a combination of Voluntary Employee Benefit Association trusts (VEBAs), established under section 501(c)(9) of the Internal Revenue Code, and irrevocable grantor trusts. In 2024, no contributions were made to the VEBAs ( none in 2023; none in 2022) and no contributions were made to the grantor trusts ( none in 2023; none in 2022). </context> | us-gaap:PensionAndOtherPostretirementBenefitContributions |
We have postretirement health care and life insurance plans covering eligible employees. In 2010, the postretirement health care plan was closed to employees hired after January 2011, and the eligibility requirements were amended. The postretirement life plan was amended in 2014 to close the plan to non-union employees retiring after 2015, and in 2018, the plan was amended to limit the benefit level for union employees retiring after 2018. In 2023, the postretirement health care plan was amended to change the company contribution to an annual stipend for certain retirees. The postretirement health and life plans are contributory with participant contributions adjusted annually. Postretirement health and life benefits are funded through a combination of Voluntary Employee Benefit Association trusts (VEBAs), established under section 501(c)(9) of the Internal Revenue Code, and irrevocable grantor trusts. In 2024, no contributions were made to the VEBAs ( none in 2023; none in 2022) and no contributions were made to the grantor trusts ( none in 2023; none in 2022). | text | none | monetaryItemType | text: <entity> none </entity> <entity type> monetaryItemType </entity type> <context> We have postretirement health care and life insurance plans covering eligible employees. In 2010, the postretirement health care plan was closed to employees hired after January 2011, and the eligibility requirements were amended. The postretirement life plan was amended in 2014 to close the plan to non-union employees retiring after 2015, and in 2018, the plan was amended to limit the benefit level for union employees retiring after 2018. In 2023, the postretirement health care plan was amended to change the company contribution to an annual stipend for certain retirees. The postretirement health and life plans are contributory with participant contributions adjusted annually. Postretirement health and life benefits are funded through a combination of Voluntary Employee Benefit Association trusts (VEBAs), established under section 501(c)(9) of the Internal Revenue Code, and irrevocable grantor trusts. In 2024, no contributions were made to the VEBAs ( none in 2023; none in 2022) and no contributions were made to the grantor trusts ( none in 2023; none in 2022). </context> | us-gaap:PensionAndOtherPostretirementBenefitContributions |
Management considers various factors when making funding decisions such as regulatory requirements, actuarially determined minimum contribution requirements and contributions required to avoid benefit restrictions for the pension plans. Contributions are based on estimates and assumptions which are subject to change. On January 15, 2025, we contributed $ 19.1 million in cash to the defined benefit pension plans, and do not expect to make additional cash contributions to the defined benefit pension plans in 2025. We do no t expect to make any contributions to the defined benefit postretirement health and life plans in 2025. | text | 19.1 | monetaryItemType | text: <entity> 19.1 </entity> <entity type> monetaryItemType </entity type> <context> Management considers various factors when making funding decisions such as regulatory requirements, actuarially determined minimum contribution requirements and contributions required to avoid benefit restrictions for the pension plans. Contributions are based on estimates and assumptions which are subject to change. On January 15, 2025, we contributed $ 19.1 million in cash to the defined benefit pension plans, and do not expect to make additional cash contributions to the defined benefit pension plans in 2025. We do no t expect to make any contributions to the defined benefit postretirement health and life plans in 2025. </context> | us-gaap:DefinedBenefitPlanContributionsByEmployer |
Management considers various factors when making funding decisions such as regulatory requirements, actuarially determined minimum contribution requirements and contributions required to avoid benefit restrictions for the pension plans. Contributions are based on estimates and assumptions which are subject to change. On January 15, 2025, we contributed $ 19.1 million in cash to the defined benefit pension plans, and do not expect to make additional cash contributions to the defined benefit pension plans in 2025. We do no t expect to make any contributions to the defined benefit postretirement health and life plans in 2025. | text | not | monetaryItemType | text: <entity> not </entity> <entity type> monetaryItemType </entity type> <context> Management considers various factors when making funding decisions such as regulatory requirements, actuarially determined minimum contribution requirements and contributions required to avoid benefit restrictions for the pension plans. Contributions are based on estimates and assumptions which are subject to change. On January 15, 2025, we contributed $ 19.1 million in cash to the defined benefit pension plans, and do not expect to make additional cash contributions to the defined benefit pension plans in 2025. We do no t expect to make any contributions to the defined benefit postretirement health and life plans in 2025. </context> | us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear |
Management considers various factors when making funding decisions such as regulatory requirements, actuarially determined minimum contribution requirements and contributions required to avoid benefit restrictions for the pension plans. Contributions are based on estimates and assumptions which are subject to change. On January 15, 2025, we contributed $ 19.1 million in cash to the defined benefit pension plans, and do not expect to make additional cash contributions to the defined benefit pension plans in 2025. We do no t expect to make any contributions to the defined benefit postretirement health and life plans in 2025. | text | no | monetaryItemType | text: <entity> no </entity> <entity type> monetaryItemType </entity type> <context> Management considers various factors when making funding decisions such as regulatory requirements, actuarially determined minimum contribution requirements and contributions required to avoid benefit restrictions for the pension plans. Contributions are based on estimates and assumptions which are subject to change. On January 15, 2025, we contributed $ 19.1 million in cash to the defined benefit pension plans, and do not expect to make additional cash contributions to the defined benefit pension plans in 2025. We do no t expect to make any contributions to the defined benefit postretirement health and life plans in 2025. </context> | us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear |
The pension costs that are reported as a component within the Consolidated Balance Sheet, reflected in long-term regulatory assets or liabilities and accumulated other comprehensive income, consist primarily of a net loss of $ 235.2 million as of December 31, 2024 (net loss of $ 256.9 million as of December 31, 2023). | text | 235.2 | monetaryItemType | text: <entity> 235.2 </entity> <entity type> monetaryItemType </entity type> <context> The pension costs that are reported as a component within the Consolidated Balance Sheet, reflected in long-term regulatory assets or liabilities and accumulated other comprehensive income, consist primarily of a net loss of $ 235.2 million as of December 31, 2024 (net loss of $ 256.9 million as of December 31, 2023). </context> | us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax |
The pension costs that are reported as a component within the Consolidated Balance Sheet, reflected in long-term regulatory assets or liabilities and accumulated other comprehensive income, consist primarily of a net loss of $ 235.2 million as of December 31, 2024 (net loss of $ 256.9 million as of December 31, 2023). | text | 256.9 | monetaryItemType | text: <entity> 256.9 </entity> <entity type> monetaryItemType </entity type> <context> The pension costs that are reported as a component within the Consolidated Balance Sheet, reflected in long-term regulatory assets or liabilities and accumulated other comprehensive income, consist primarily of a net loss of $ 235.2 million as of December 31, 2024 (net loss of $ 256.9 million as of December 31, 2023). </context> | us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax |
According to the accounting standards for retirement benefits, only assets in the VEBAs are treated as plan assets in the preceding table for the purpose of determining funded status. In addition to the postretirement health and life assets reported in the previous table, we had $ 13.4 million in irrevocable grantor trusts included in Other Non-Current Assets on the Consolidated Balance Sheet as of December 31, 2024 ($ 12.8 million as of December 31, 2023). | text | 13.4 | monetaryItemType | text: <entity> 13.4 </entity> <entity type> monetaryItemType </entity type> <context> According to the accounting standards for retirement benefits, only assets in the VEBAs are treated as plan assets in the preceding table for the purpose of determining funded status. In addition to the postretirement health and life assets reported in the previous table, we had $ 13.4 million in irrevocable grantor trusts included in Other Non-Current Assets on the Consolidated Balance Sheet as of December 31, 2024 ($ 12.8 million as of December 31, 2023). </context> | us-gaap:LongTermInvestments |
According to the accounting standards for retirement benefits, only assets in the VEBAs are treated as plan assets in the preceding table for the purpose of determining funded status. In addition to the postretirement health and life assets reported in the previous table, we had $ 13.4 million in irrevocable grantor trusts included in Other Non-Current Assets on the Consolidated Balance Sheet as of December 31, 2024 ($ 12.8 million as of December 31, 2023). | text | 12.8 | monetaryItemType | text: <entity> 12.8 </entity> <entity type> monetaryItemType </entity type> <context> According to the accounting standards for retirement benefits, only assets in the VEBAs are treated as plan assets in the preceding table for the purpose of determining funded status. In addition to the postretirement health and life assets reported in the previous table, we had $ 13.4 million in irrevocable grantor trusts included in Other Non-Current Assets on the Consolidated Balance Sheet as of December 31, 2024 ($ 12.8 million as of December 31, 2023). </context> | us-gaap:LongTermInvestments |
There were no shares of ALLETE common stock included in pension plan equity securities as of December 31, 2024 ( no shares as of December 31, 2023). | text | no | sharesItemType | text: <entity> no </entity> <entity type> sharesItemType </entity type> <context> There were no shares of ALLETE common stock included in pension plan equity securities as of December 31, 2024 ( no shares as of December 31, 2023). </context> | us-gaap:DefinedBenefitPlanNumberOfSharesOfEquitySecuritiesIssuedByEmployerAndRelatedPartiesIncludedInPlanAssets |
We sponsor an ESOP within the RSOP. Eligible employees may contribute to the RSOP plan as of their date of hire. The dividends received by the ESOP are distributed to participants. Dividends on allocated ESOP shares are recorded as a reduction of retained earnings. ESOP employer allocations are funded with contributions paid in either cash or the issuance of ALLETE common stock at the Company’s discretion. We record compensation expense equal to the cash or current market price of stock contributed. ESOP compensation expense was $ 15.7 million in 2024 ($ 13.7 million in 2023; $ 12.0 million in 2022). | text | 15.7 | monetaryItemType | text: <entity> 15.7 </entity> <entity type> monetaryItemType </entity type> <context> We sponsor an ESOP within the RSOP. Eligible employees may contribute to the RSOP plan as of their date of hire. The dividends received by the ESOP are distributed to participants. Dividends on allocated ESOP shares are recorded as a reduction of retained earnings. ESOP employer allocations are funded with contributions paid in either cash or the issuance of ALLETE common stock at the Company’s discretion. We record compensation expense equal to the cash or current market price of stock contributed. ESOP compensation expense was $ 15.7 million in 2024 ($ 13.7 million in 2023; $ 12.0 million in 2022). </context> | us-gaap:EmployeeStockOwnershipPlanESOPCompensationExpense |
We sponsor an ESOP within the RSOP. Eligible employees may contribute to the RSOP plan as of their date of hire. The dividends received by the ESOP are distributed to participants. Dividends on allocated ESOP shares are recorded as a reduction of retained earnings. ESOP employer allocations are funded with contributions paid in either cash or the issuance of ALLETE common stock at the Company’s discretion. We record compensation expense equal to the cash or current market price of stock contributed. ESOP compensation expense was $ 15.7 million in 2024 ($ 13.7 million in 2023; $ 12.0 million in 2022). | text | 13.7 | monetaryItemType | text: <entity> 13.7 </entity> <entity type> monetaryItemType </entity type> <context> We sponsor an ESOP within the RSOP. Eligible employees may contribute to the RSOP plan as of their date of hire. The dividends received by the ESOP are distributed to participants. Dividends on allocated ESOP shares are recorded as a reduction of retained earnings. ESOP employer allocations are funded with contributions paid in either cash or the issuance of ALLETE common stock at the Company’s discretion. We record compensation expense equal to the cash or current market price of stock contributed. ESOP compensation expense was $ 15.7 million in 2024 ($ 13.7 million in 2023; $ 12.0 million in 2022). </context> | us-gaap:EmployeeStockOwnershipPlanESOPCompensationExpense |
We sponsor an ESOP within the RSOP. Eligible employees may contribute to the RSOP plan as of their date of hire. The dividends received by the ESOP are distributed to participants. Dividends on allocated ESOP shares are recorded as a reduction of retained earnings. ESOP employer allocations are funded with contributions paid in either cash or the issuance of ALLETE common stock at the Company’s discretion. We record compensation expense equal to the cash or current market price of stock contributed. ESOP compensation expense was $ 15.7 million in 2024 ($ 13.7 million in 2023; $ 12.0 million in 2022). | text | 12.0 | monetaryItemType | text: <entity> 12.0 </entity> <entity type> monetaryItemType </entity type> <context> We sponsor an ESOP within the RSOP. Eligible employees may contribute to the RSOP plan as of their date of hire. The dividends received by the ESOP are distributed to participants. Dividends on allocated ESOP shares are recorded as a reduction of retained earnings. ESOP employer allocations are funded with contributions paid in either cash or the issuance of ALLETE common stock at the Company’s discretion. We record compensation expense equal to the cash or current market price of stock contributed. ESOP compensation expense was $ 15.7 million in 2024 ($ 13.7 million in 2023; $ 12.0 million in 2022). </context> | us-gaap:EmployeeStockOwnershipPlanESOPCompensationExpense |
Under our Executive Long-Term Incentive Compensation Plan (Executive Plan), share-based awards may be issued to key employees through a broad range of methods, including non-qualified and incentive stock options, performance shares, performance units, restricted stock, restricted stock units, stock appreciation rights and other awards. There are 0.7 million shares of ALLETE common stock reserved for issuance under the Executive Plan, of which 0.5 million of these shares remain available for issuance as of December 31, 2024. | text | 0.7 | sharesItemType | text: <entity> 0.7 </entity> <entity type> sharesItemType </entity type> <context> Under our Executive Long-Term Incentive Compensation Plan (Executive Plan), share-based awards may be issued to key employees through a broad range of methods, including non-qualified and incentive stock options, performance shares, performance units, restricted stock, restricted stock units, stock appreciation rights and other awards. There are 0.7 million shares of ALLETE common stock reserved for issuance under the Executive Plan, of which 0.5 million of these shares remain available for issuance as of December 31, 2024. </context> | us-gaap:CommonStockCapitalSharesReservedForFutureIssuance |
Under our Executive Long-Term Incentive Compensation Plan (Executive Plan), share-based awards may be issued to key employees through a broad range of methods, including non-qualified and incentive stock options, performance shares, performance units, restricted stock, restricted stock units, stock appreciation rights and other awards. There are 0.7 million shares of ALLETE common stock reserved for issuance under the Executive Plan, of which 0.5 million of these shares remain available for issuance as of December 31, 2024. | text | 0.5 | sharesItemType | text: <entity> 0.5 </entity> <entity type> sharesItemType </entity type> <context> Under our Executive Long-Term Incentive Compensation Plan (Executive Plan), share-based awards may be issued to key employees through a broad range of methods, including non-qualified and incentive stock options, performance shares, performance units, restricted stock, restricted stock units, stock appreciation rights and other awards. There are 0.7 million shares of ALLETE common stock reserved for issuance under the Executive Plan, of which 0.5 million of these shares remain available for issuance as of December 31, 2024. </context> | us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant |
Under our ESPP, eligible employees may purchase ALLETE common stock at a 5 percent discount from the market price; we are not required to apply fair value accounting to these awards as the discount is not greater than 5 percent. | text | 5 | percentItemType | text: <entity> 5 </entity> <entity type> percentItemType </entity type> <context> Under our ESPP, eligible employees may purchase ALLETE common stock at a 5 percent discount from the market price; we are not required to apply fair value accounting to these awards as the discount is not greater than 5 percent. </context> | us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate |
As of December 31, 2024, the total unrecognized compensation cost for the performance share awards and restricted stock units not yet recognized in our Consolidated Statement of Income was $ 3.3 million and $ 1.1 million, respectively. These amounts are expected to be recognized over a weighted-average period of 1.7 years and 1.8 years, respectively. | text | 3.3 | monetaryItemType | text: <entity> 3.3 </entity> <entity type> monetaryItemType </entity type> <context> As of December 31, 2024, the total unrecognized compensation cost for the performance share awards and restricted stock units not yet recognized in our Consolidated Statement of Income was $ 3.3 million and $ 1.1 million, respectively. These amounts are expected to be recognized over a weighted-average period of 1.7 years and 1.8 years, respectively. </context> | us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized |
As of December 31, 2024, the total unrecognized compensation cost for the performance share awards and restricted stock units not yet recognized in our Consolidated Statement of Income was $ 3.3 million and $ 1.1 million, respectively. These amounts are expected to be recognized over a weighted-average period of 1.7 years and 1.8 years, respectively. | text | 1.1 | monetaryItemType | text: <entity> 1.1 </entity> <entity type> monetaryItemType </entity type> <context> As of December 31, 2024, the total unrecognized compensation cost for the performance share awards and restricted stock units not yet recognized in our Consolidated Statement of Income was $ 3.3 million and $ 1.1 million, respectively. These amounts are expected to be recognized over a weighted-average period of 1.7 years and 1.8 years, respectively. </context> | us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized |
There were approximately 65,300 performance shares granted in January 2025 for the three -year performance period ending in 2027. The ultimate issuance is contingent upon the attainment of certain goals of ALLETE during the performance periods. The grant date fair value of the performance shares granted was $ 4.6 million. There were approximately 14,200 performance shares awarded in February 2025. The grant date fair value of the shares awarded was $ 1.0 million. | text | 65300 | sharesItemType | text: <entity> 65300 </entity> <entity type> sharesItemType </entity type> <context> There were approximately 65,300 performance shares granted in January 2025 for the three -year performance period ending in 2027. The ultimate issuance is contingent upon the attainment of certain goals of ALLETE during the performance periods. The grant date fair value of the performance shares granted was $ 4.6 million. There were approximately 14,200 performance shares awarded in February 2025. The grant date fair value of the shares awarded was $ 1.0 million. </context> | us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod |
There were approximately 65,300 performance shares granted in January 2025 for the three -year performance period ending in 2027. The ultimate issuance is contingent upon the attainment of certain goals of ALLETE during the performance periods. The grant date fair value of the performance shares granted was $ 4.6 million. There were approximately 14,200 performance shares awarded in February 2025. The grant date fair value of the shares awarded was $ 1.0 million. | text | 14200 | sharesItemType | text: <entity> 14200 </entity> <entity type> sharesItemType </entity type> <context> There were approximately 65,300 performance shares granted in January 2025 for the three -year performance period ending in 2027. The ultimate issuance is contingent upon the attainment of certain goals of ALLETE during the performance periods. The grant date fair value of the performance shares granted was $ 4.6 million. There were approximately 14,200 performance shares awarded in February 2025. The grant date fair value of the shares awarded was $ 1.0 million. </context> | us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod |
There were approximately 65,300 performance shares granted in January 2025 for the three -year performance period ending in 2027. The ultimate issuance is contingent upon the attainment of certain goals of ALLETE during the performance periods. The grant date fair value of the performance shares granted was $ 4.6 million. There were approximately 14,200 performance shares awarded in February 2025. The grant date fair value of the shares awarded was $ 1.0 million. | text | 1.0 | monetaryItemType | text: <entity> 1.0 </entity> <entity type> monetaryItemType </entity type> <context> There were approximately 65,300 performance shares granted in January 2025 for the three -year performance period ending in 2027. The ultimate issuance is contingent upon the attainment of certain goals of ALLETE during the performance periods. The grant date fair value of the performance shares granted was $ 4.6 million. There were approximately 14,200 performance shares awarded in February 2025. The grant date fair value of the shares awarded was $ 1.0 million. </context> | us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue |
There were approximately 25,900 restricted stock units granted in January 2025 for the vesting period ending in 2027. The grant date fair value of the restricted stock units granted was $ 1.7 million. There were approximately 12,300 restricted stock units awarded in February 2025. The grant date fair value of the shares awarded was $ 0.8 million. | text | 25900 | sharesItemType | text: <entity> 25900 </entity> <entity type> sharesItemType </entity type> <context> There were approximately 25,900 restricted stock units granted in January 2025 for the vesting period ending in 2027. The grant date fair value of the restricted stock units granted was $ 1.7 million. There were approximately 12,300 restricted stock units awarded in February 2025. The grant date fair value of the shares awarded was $ 0.8 million. </context> | us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod |
There were approximately 25,900 restricted stock units granted in January 2025 for the vesting period ending in 2027. The grant date fair value of the restricted stock units granted was $ 1.7 million. There were approximately 12,300 restricted stock units awarded in February 2025. The grant date fair value of the shares awarded was $ 0.8 million. | text | 12300 | sharesItemType | text: <entity> 12300 </entity> <entity type> sharesItemType </entity type> <context> There were approximately 25,900 restricted stock units granted in January 2025 for the vesting period ending in 2027. The grant date fair value of the restricted stock units granted was $ 1.7 million. There were approximately 12,300 restricted stock units awarded in February 2025. The grant date fair value of the shares awarded was $ 0.8 million. </context> | us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod |
There were approximately 25,900 restricted stock units granted in January 2025 for the vesting period ending in 2027. The grant date fair value of the restricted stock units granted was $ 1.7 million. There were approximately 12,300 restricted stock units awarded in February 2025. The grant date fair value of the shares awarded was $ 0.8 million. | text | 0.8 | monetaryItemType | text: <entity> 0.8 </entity> <entity type> monetaryItemType </entity type> <context> There were approximately 25,900 restricted stock units granted in January 2025 for the vesting period ending in 2027. The grant date fair value of the restricted stock units granted was $ 1.7 million. There were approximately 12,300 restricted stock units awarded in February 2025. The grant date fair value of the shares awarded was $ 0.8 million. </context> | us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue |
Regulated Operations includes three operating segments which consist of our regulated utilities, Minnesota Power and SWL&P, as well as our investment in ATC. ALLETE Clean Energy is our business focused on developing, acquiring and operating clean and renewable energy projects. We also present Corporate and Other which includes three operating segments, New Energy, a renewable energy development company, BNI Energy, our coal mining operations in North Dakota, and ALLETE Properties, our legacy Florida real estate investment, along with our investment in Nobles 2, South Shore Energy, our non-rate regulated, Wisconsin subsidiary developing NTEC, other business development and corporate expenditures, unallocated interest expense, a small amount of non-rate base generation, land holdings in Minnesota, and earnings on cash and investments. | text | three | integerItemType | text: <entity> three </entity> <entity type> integerItemType </entity type> <context> Regulated Operations includes three operating segments which consist of our regulated utilities, Minnesota Power and SWL&P, as well as our investment in ATC. ALLETE Clean Energy is our business focused on developing, acquiring and operating clean and renewable energy projects. We also present Corporate and Other which includes three operating segments, New Energy, a renewable energy development company, BNI Energy, our coal mining operations in North Dakota, and ALLETE Properties, our legacy Florida real estate investment, along with our investment in Nobles 2, South Shore Energy, our non-rate regulated, Wisconsin subsidiary developing NTEC, other business development and corporate expenditures, unallocated interest expense, a small amount of non-rate base generation, land holdings in Minnesota, and earnings on cash and investments. </context> | us-gaap:NumberOfOperatingSegments |
(d) Net Income in 2022 includes a $ 8.3 million after-tax expense as a result of purchase price accounting related to projects under development at the time of acquisition and $ 2.7 million after-tax of transaction costs related to the acquisition of New Energy. | text | 2.7 | monetaryItemType | text: <entity> 2.7 </entity> <entity type> monetaryItemType </entity type> <context> (d) Net Income in 2022 includes a $ 8.3 million after-tax expense as a result of purchase price accounting related to projects under development at the time of acquisition and $ 2.7 million after-tax of transaction costs related to the acquisition of New Energy. </context> | us-gaap:BusinessCombinationAcquisitionRelatedCosts |
(e) Net income in 2024 includes transaction expenses of $ 22.6 million after-tax related to the Merger. (See Note 15. Agreement and Plan of Merger.) | text | 22.6 | monetaryItemType | text: <entity> 22.6 </entity> <entity type> monetaryItemType </entity type> <context> (e) Net income in 2024 includes transaction expenses of $ 22.6 million after-tax related to the Merger. (See Note 15. Agreement and Plan of Merger.) </context> | us-gaap:BusinessCombinationAcquisitionRelatedCosts |
Subject to the terms and conditions set forth in the Merger Agreement, which has been unanimously approved by the board of directors of ALLETE and approved and adopted by the shareholders of ALLETE, at the effective time of the Merger (Effective Time), each share of common stock, without par value, of ALLETE (ALLETE common stock) issued and outstanding immediately prior to the Effective Time (other than shares of ALLETE common stock held by any holder who properly exercises dissenters’ rights under Minnesota law in respect of such shares and any shares of ALLETE common stock held by an affiliate of Alloy Parent) shall be converted into the right to receive $ 67.00 in cash, without interest (Merger Consideration). The aggregate equity value of the ALLETE common stock acquired by Parent will be approximately $ 3.9 billion as calculated as of May 5, 2024. | text | 67.00 | perShareItemType | text: <entity> 67.00 </entity> <entity type> perShareItemType </entity type> <context> Subject to the terms and conditions set forth in the Merger Agreement, which has been unanimously approved by the board of directors of ALLETE and approved and adopted by the shareholders of ALLETE, at the effective time of the Merger (Effective Time), each share of common stock, without par value, of ALLETE (ALLETE common stock) issued and outstanding immediately prior to the Effective Time (other than shares of ALLETE common stock held by any holder who properly exercises dissenters’ rights under Minnesota law in respect of such shares and any shares of ALLETE common stock held by an affiliate of Alloy Parent) shall be converted into the right to receive $ 67.00 in cash, without interest (Merger Consideration). The aggregate equity value of the ALLETE common stock acquired by Parent will be approximately $ 3.9 billion as calculated as of May 5, 2024. </context> | us-gaap:BusinessAcquisitionSharePrice |
Subject to the terms and conditions set forth in the Merger Agreement, which has been unanimously approved by the board of directors of ALLETE and approved and adopted by the shareholders of ALLETE, at the effective time of the Merger (Effective Time), each share of common stock, without par value, of ALLETE (ALLETE common stock) issued and outstanding immediately prior to the Effective Time (other than shares of ALLETE common stock held by any holder who properly exercises dissenters’ rights under Minnesota law in respect of such shares and any shares of ALLETE common stock held by an affiliate of Alloy Parent) shall be converted into the right to receive $ 67.00 in cash, without interest (Merger Consideration). The aggregate equity value of the ALLETE common stock acquired by Parent will be approximately $ 3.9 billion as calculated as of May 5, 2024. | text | 3.9 | monetaryItemType | text: <entity> 3.9 </entity> <entity type> monetaryItemType </entity type> <context> Subject to the terms and conditions set forth in the Merger Agreement, which has been unanimously approved by the board of directors of ALLETE and approved and adopted by the shareholders of ALLETE, at the effective time of the Merger (Effective Time), each share of common stock, without par value, of ALLETE (ALLETE common stock) issued and outstanding immediately prior to the Effective Time (other than shares of ALLETE common stock held by any holder who properly exercises dissenters’ rights under Minnesota law in respect of such shares and any shares of ALLETE common stock held by an affiliate of Alloy Parent) shall be converted into the right to receive $ 67.00 in cash, without interest (Merger Consideration). The aggregate equity value of the ALLETE common stock acquired by Parent will be approximately $ 3.9 billion as calculated as of May 5, 2024. </context> | us-gaap:BusinessCombinationConsiderationTransferred1 |
The Merger Agreement contains certain termination rights for ALLETE and Alloy Parent, which were described in a Current Report of Form 8-K filed by ALLETE on May 6, 2024. In the Merger Agreement, among other things, ALLETE has agreed, subject to certain exceptions, to, and to cause each of its subsidiaries to conduct its business in the ordinary course, consistent with past practice, from the date of the Merger Agreement until the Effective Time, and not to take certain actions prior to the closing of the Merger without the prior written consent of Alloy Parent (which consent shall not be unreasonably withheld, conditioned or delayed, except where ALLETE seeks Alloy Parent’s consent to enter into a material new line of business or cease operations of an existing material line of business). The Merger Agreement also provides that ALLETE may notify Alloy Parent of our intent to raise equity capital of up to a total of $ 300 million in the second half of 2025, subject to certain parameters. If Alloy Parent declines to participate in the equity capital raises or fails to provide timely notice with respect thereto, ALLETE will have the right to issue ALLETE common stock in the public markets for an amount equal to any unfunded amounts under such equity capital raises. | text | 300 | monetaryItemType | text: <entity> 300 </entity> <entity type> monetaryItemType </entity type> <context> The Merger Agreement contains certain termination rights for ALLETE and Alloy Parent, which were described in a Current Report of Form 8-K filed by ALLETE on May 6, 2024. In the Merger Agreement, among other things, ALLETE has agreed, subject to certain exceptions, to, and to cause each of its subsidiaries to conduct its business in the ordinary course, consistent with past practice, from the date of the Merger Agreement until the Effective Time, and not to take certain actions prior to the closing of the Merger without the prior written consent of Alloy Parent (which consent shall not be unreasonably withheld, conditioned or delayed, except where ALLETE seeks Alloy Parent’s consent to enter into a material new line of business or cease operations of an existing material line of business). The Merger Agreement also provides that ALLETE may notify Alloy Parent of our intent to raise equity capital of up to a total of $ 300 million in the second half of 2025, subject to certain parameters. If Alloy Parent declines to participate in the equity capital raises or fails to provide timely notice with respect thereto, ALLETE will have the right to issue ALLETE common stock in the public markets for an amount equal to any unfunded amounts under such equity capital raises. </context> | us-gaap:BusinessCombinationContingentConsiderationAsset |
Advertising costs are expensed as incurred and totaled $ 1,286,000 in 2024, $ 1,190,000 in 2023, and $ 1,257,000 in 2022. | text | 1286000 | monetaryItemType | text: <entity> 1286000 </entity> <entity type> monetaryItemType </entity type> <context> Advertising costs are expensed as incurred and totaled $ 1,286,000 in 2024, $ 1,190,000 in 2023, and $ 1,257,000 in 2022. </context> | us-gaap:AdvertisingExpense |
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