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DERIVATIVE FINANCIAL INSTRUMENTS: Derivative Financial Instruments Level 4 (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Fair Value |  |  |  |  |
Derivative Asset, Fair Value, Gross Asset |  | $ 3,982 |  | $ 5,188 |
Derivative Asset, Fair Value, Gross Liability |  | (3,979) |  | (5,188) |
Derivative Asset, Fair Value, Amount Offset Against Collateral |  | 3 |  | 0 |
Derivative Liability, Fair Value, Gross Liability |  | 53,498 |  | 31,776 |
Derivative Liability, Fair Value, Gross Asset |  | (33,779) |  | (15,517) |
Derivative Liability, Fair Value, Amount Offset Against Collateral |  | 19,719 |  | 16,259 |
Derivatives in a net liability position |  | 55,800 |  |  |
Collateral Already Posted, Aggregate Fair Value |  | 45,100 |  |  |
Additional Collateral, Aggregate Fair Value |  | 34,000 |  |  |
Other assets |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash, Offset Against Derivative Asset |  |  |  | 1,500 |
Other current liabilities |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |
Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset |  | 26,900 |  | 11,900 |
Other liabilities |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |
Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset |  | 2,900 |  |  |
Financial Swaps | Other assets |  |  |  |  |
Fair Value |  |  |  |  |
Derivative Asset, Fair Value, Gross Asset |  |  |  | 1,939 |
Derivative Asset, Fair Value, Gross Liability | [1] |  |  | (1,939) |
Derivative Asset, Fair Value, Amount Offset Against Collateral |  |  |  | 0 |
Derivative Liability, Fair Value, Gross Liability |  |  |  | 409 |
Derivative Liability, Fair Value, Gross Asset |  |  |  | (409) |
Derivative Liability, Fair Value, Amount Offset Against Collateral |  |  |  | 0 |
Financial Swaps | Other current liabilities |  |  |  |  |
Fair Value |  |  |  |  |
Derivative Asset, Fair Value, Gross Asset |  | 2,535 |  | 3,072 |
Derivative Asset, Fair Value, Gross Liability |  | (2,535) |  | (3,072) |
Derivative Asset, Fair Value, Amount Offset Against Collateral |  | 0 |  | 0 |
Derivative Liability, Fair Value, Gross Liability |  | 34,486 |  | 18,092 |
Derivative Liability, Fair Value, Gross Asset |  | (29,394) | [2] | (14,931) | [3]
Derivative Liability, Fair Value, Amount Offset Against Collateral |  | 5,092 |  | 3,161 |
Financial Swaps | Other liabilities |  |  |  |  |
Fair Value |  |  |  |  |
Derivative Asset, Fair Value, Gross Asset |  | 1,444 |  | 177 |
Derivative Asset, Fair Value, Gross Liability |  | (1,444) |  | (177) |
Derivative Asset, Fair Value, Amount Offset Against Collateral |  | 0 |  | 0 |
Derivative Liability, Fair Value, Gross Liability |  | 7,479 |  | 1,019 |
Derivative Liability, Fair Value, Gross Asset |  | (4,385) | [4] | (177) |
Derivative Liability, Fair Value, Amount Offset Against Collateral |  | 3,094 |  | 842 |
Forward contracts | Other current assets |  |  |  |  |
Fair Value |  |  |  |  |
Derivative Asset, Fair Value, Gross Asset |  | 3 |  |  |
Derivative Asset, Fair Value, Gross Liability |  | 0 |  |  |
Derivative Asset, Fair Value, Amount Offset Against Collateral |  | 3 |  |  |
Derivative Liability, Fair Value, Gross Liability |  | 0 |  |  |
Derivative Liability, Fair Value, Gross Asset |  | 0 |  |  |
Derivative Liability, Fair Value, Amount Offset Against Collateral |  | 0 |  |  |
Forward contracts | Other current liabilities |  |  |  |  |
Fair Value |  |  |  |  |
Derivative Asset, Fair Value, Gross Asset |  | 0 |  | 0 |
Derivative Asset, Fair Value, Gross Liability |  | 0 |  | 0 |
Derivative Asset, Fair Value, Amount Offset Against Collateral |  | 0 |  | 0 |
Derivative Liability, Fair Value, Gross Liability |  | 1,009 |  | 1,291 |
Derivative Liability, Fair Value, Gross Asset |  | 0 |  | 0 |
Derivative Liability, Fair Value, Amount Offset Against Collateral |  | 1,009 |  | 1,291 |
Forward contracts | Other liabilities |  |  |  |  |
Fair Value |  |  |  |  |
Derivative Asset, Fair Value, Gross Asset |  | 0 |  | 0 |
Derivative Asset, Fair Value, Gross Liability |  | 0 |  | 0 |
Derivative Asset, Fair Value, Amount Offset Against Collateral |  | 0 |  | 0 |
Derivative Liability, Fair Value, Gross Liability |  | 10,524 |  | 10,965 |
Derivative Liability, Fair Value, Gross Asset |  | 0 |  | 0 |
Derivative Liability, Fair Value, Amount Offset Against Collateral |  | $ 10,524 |  | $ 10,965 |
[1] | Long-term asset derivative amounts offset include $1.5 million of collateral payable at December 31, 2024.
[2] | Current liability derivative amounts offset include $26.9 million of collateral receivable at December 31, 2025.
[3] | Current liability derivative amounts offset include $11.9 million of collateral receivable at December 31, 2024.
[4] | Long-term liability derivative amounts offset include $2.9 million of collateral receivable at December 31, 2025.

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