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Qualified Affordable Housing Projects and Other Tax Credit Investments (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
Summary of Investment Holdings [Line Items]          
Investment $ 158,297   $ 158,297   $ 156,755
Unfunded commitment 63,343   63,343   65,342
Amortization expense 4,225 $ 2,765 8,450 $ 5,534  
Tax expense (benefit) recognized (5,031) (3,288) (10,063) (6,564)  
LIHTC          
Summary of Investment Holdings [Line Items]          
Investment, proportional amortization 90,164   90,164   84,428
Unfunded commitment, proportional amortization 53,327   53,327   55,754
Amortization expense 1,463 1,240 2,927 2,493  
Tax expense (benefit) recognized (1,908) (1,650) (3,817) (3,300)  
FHTC          
Summary of Investment Holdings [Line Items]          
Investment, equity 19,797   19,797   19,316
Unfunded commitment, equity 10,016   10,016   9,588
Amortization expense 424 215 848 420  
Tax expense (benefit) recognized (512) (263) (1,024) (514)  
NMTC          
Summary of Investment Holdings [Line Items]          
Investment, equity 47,728   47,728   51,912
Unfunded commitment, equity 0   0   0
Amortization expense 2,092 1,100 4,183 2,201  
Tax expense (benefit) recognized (2,611) (1,375) (5,222) (2,750)  
Renewable Energy          
Summary of Investment Holdings [Line Items]          
Investment, equity 608   608   1,099
Unfunded commitment, equity 0   0   $ 0
Amortization expense 246 210 492 420  
Tax expense (benefit) recognized $ 0 $ 0 $ 0 $ 0