v3.26.1
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)