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COMMITMENTS AND CONTINGENCIES - Investment holdings schedule (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2026 | Mar. 31, 2025 | Dec. 31, 2025
Summary of Investment Holdings [Line Items] |  |  |
Amortization Method Qualified Affordable Housing Project Investments | $ 219,433 |  | $ 212,282
Qualified Affordable Housing Project Investments, Commitment | 101,596 |  | 102,990
Amortization Method Qualified Affordable Housing Project Investments, Amortization | 6,388 | $ 6,143 |
Affordable Housing Tax Credits and Other Tax Benefits, Amount | (6,720) | (5,781) |
Low Income Housing Tax Credits |  |  |
Summary of Investment Holdings [Line Items] |  |  |
Amortization Method Qualified Affordable Housing Project Investments | 177,994 |  | 169,031
Qualified Affordable Housing Project Investments, Commitment | 83,554 |  | 81,482
Amortization Method Qualified Affordable Housing Project Investments, Amortization | 4,851 | 5,978 |
Affordable Housing Tax Credits and Other Tax Benefits, Amount | (5,377) | (4,647) |
Historic tax credit [Member] |  |  |
Summary of Investment Holdings [Line Items] |  |  |
Amortization Method Qualified Affordable Housing Project Investments | 7,653 |  | 8,322
Qualified Affordable Housing Project Investments, Commitment | 5,846 |  | 5,855
Amortization Method Qualified Affordable Housing Project Investments, Amortization | 669 | 112 |
Affordable Housing Tax Credits and Other Tax Benefits, Amount | (310) | (101) |
New Markets Tax Credit |  |  |
Summary of Investment Holdings [Line Items] |  |  |
Amortization Method Qualified Affordable Housing Project Investments | 150 |  | 290
Qualified Affordable Housing Project Investments, Commitment | 0 |  | 0
Amortization Method Qualified Affordable Housing Project Investments, Amortization | 0 | 0 |
Affordable Housing Tax Credits and Other Tax Benefits, Amount | 0 | 0 |
Renewable Energy Program |  |  |
Summary of Investment Holdings [Line Items] |  |  |
Amortization Method Qualified Affordable Housing Project Investments | 24,630 |  | 24,765
Qualified Affordable Housing Project Investments, Commitment | 12,140 |  | 15,597
Amortization Method Qualified Affordable Housing Project Investments, Amortization | 0 | 0 |
Affordable Housing Tax Credits and Other Tax Benefits, Amount | 0 | 0 |
Historic tax credit-Proportional Amort |  |  |
Summary of Investment Holdings [Line Items] |  |  |
Amortization Method Qualified Affordable Housing Project Investments | 9,006 |  | 9,874
Qualified Affordable Housing Project Investments, Commitment | 56 |  | $ 56
Amortization Method Qualified Affordable Housing Project Investments, Amortization | 868 | 53 |
Affordable Housing Tax Credits and Other Tax Benefits, Amount | $ (1,033) | $ (1,033) |

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