v3.26.3
COMMITMENTS AND CONTINGENCIES - Investment holdings schedule (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Summary of Investment Holdings [Line Items]          
Amortization Method Qualified Affordable Housing Project Investments         $ 212,282
Qualified Affordable Housing Project Investments, Commitment $ 97,260   $ 97,260   102,990
Equity Method Investments Qualified Affordable Housing Project Investments 231,135   231,135    
Amortization Method Qualified Affordable Housing Project Investments, Amortization 14,268 $ 4,981 28,260 $ 16,644  
Affordable Housing Tax Credits and Other Tax Benefits, Amount (13,976) (5,226) (27,371) (16,794)  
Low Income Housing Tax Credits          
Summary of Investment Holdings [Line Items]          
Amortization Method Qualified Affordable Housing Project Investments 189,186   189,186   169,031
Qualified Affordable Housing Project Investments, Commitment 81,420   81,420   81,482
Amortization Method Qualified Affordable Housing Project Investments, Amortization 6,185 4,001 17,103 12,974  
Affordable Housing Tax Credits and Other Tax Benefits, Amount (5,337) (4,092) (16,046) (13,392)  
Historic tax credit-Proportional Amort          
Summary of Investment Holdings [Line Items]          
Amortization Method Qualified Affordable Housing Project Investments 7,270   7,270   9,874
Qualified Affordable Housing Project Investments, Commitment 56   56   56
Amortization Method Qualified Affordable Housing Project Investments, Amortization 868 868 2,604 3,335  
Affordable Housing Tax Credits and Other Tax Benefits, Amount (1,033) (1,033) (3,099) (3,099)  
Historic tax credit [Member]          
Summary of Investment Holdings [Line Items]          
Equity Method Investments Qualified Affordable Housing Project Investments 16,798   16,798   8,322
Equity Method Investments Qualified Affordable Housing Project Investments, Commitment 15,619   15,619   5,855
Amortization Method Qualified Affordable Housing Project Investments, Amortization 774 112 2,112 335  
Affordable Housing Tax Credits and Other Tax Benefits, Amount (310) (101) (930) (303)  
New Markets Tax Credit          
Summary of Investment Holdings [Line Items]          
Equity Method Investments Qualified Affordable Housing Project Investments 51   51   290
Equity Method Investments Qualified Affordable Housing Project Investments, Commitment 0   0   0
Amortization Method Qualified Affordable Housing Project Investments, Amortization 0 0 0 0  
Affordable Housing Tax Credits and Other Tax Benefits, Amount 0 0 0 0  
Renewable Energy Program          
Summary of Investment Holdings [Line Items]          
Amortization Method Qualified Affordable Housing Project Investments 8,971   8,971   0
Qualified Affordable Housing Project Investments, Commitment 22   22   0
Equity Method Investments Qualified Affordable Housing Project Investments 8,859   8,859   24,765
Equity Method Investments Qualified Affordable Housing Project Investments, Commitment 143   143   $ 15,597
Amortization Method Qualified Affordable Housing Project Investments, Amortization 6,441 0 6,441 0  
Affordable Housing Tax Credits and Other Tax Benefits, Amount (7,296) 0 (7,296) $ 0  
us-gaap_Renewable Energy Program-Equity Member          
Summary of Investment Holdings [Line Items]          
Amortization Method Qualified Affordable Housing Project Investments, Amortization 0 0 0    
Affordable Housing Tax Credits and Other Tax Benefits, Amount $ 0 $ 0 $ 0