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LEASES: Level 3 (Tables) | 12 Months Ended
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Dec. 31, 2025
Leases [Abstract] |
Lease, Cost [Table Text Block] | The following table provides a summary of the components of total lease cost included in the consolidated statements of income for the year ended December 31 (in thousands of dollars):
|  | 2025 |  |  |  |
Finance lease cost: |  |  |  |  |  |
Amortization of ROU asset (Depreciation and amortization) |  | $ | 3,762 |  |  |  |  |
Interest on lease liabilities (Interest on long-term debt and finance leases)(1) |  | 8,586 |  |  |  |  |
Total finance lease cost |  | 12,348 |  |  |  |  |
Variable lease cost (Other O&M) |  | 973 |  |  |  |  |
Total lease cost |  | $ | 13,321 |  |  |  |  |
(1) Included in operating activities in the consolidated statements of cash flows as cash paid for amounts included in the measurement of lease liabilities.
Lessee, Finance Lease, Disclosure | The following table presents the classification of certain lease amounts included in the consolidated balance sheets as of December 31 (in thousands of dollars):
|  | 2025
Finance leases: |  |
Other current liabilities |  | $ | 6,161 |
The following table presents the weighted-average remaining lease term and weighted-average discount rate as of December 31:
|  | 2025
Finance leases: |  |
Weighted average remaining lease term |  | 19.38 years
Weighted average discount rate |  | 6.17 | %
Finance Lease, Liability, to be Paid, Rolling Maturity [Abstract] | The following table presents the maturities of future fixed lease payments and a reconciliation of undiscounted cash flows to lease liabilities recognized on the consolidated balance sheets as of December 31, 2025 (in thousands of dollars):
|  | Finance Leases
2026 |  | $ | 19,751 |
2027 |  | 19,751 |
2028 |  | 19,751 |
2029 |  | 19,751 |
2030 |  | 19,751 |
Thereafter |  | 283,907 |
Total future fixed lease payments |  | 382,662 |
Less: amounts representing interest |  | (159,806) |
Total present value of lease liabilities |  | 222,856

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- Definition Lessee, Finance Lease, Disclosure + References No definition available. + Details
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- Definition Tabular disclosure of undiscounted cash flows of finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to finance lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-6 + Details
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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4 + Details
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- References No definition available. + Details
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