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Loans and Allowance for Credit Losses on Loans HFI - Schedule of Changes in Allowance for Credit Losses on Loans HFI by Class of Financing Receivable (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Allowance for Loan and Lease Losses [Roll Forward]    
Balance at beginning of period $ 150,326 $ 134,192
(Reversal of) provision for credit losses on loans HFI 1,852 4,997
Recoveries of loans previously charged-off 416 387
Loans charged off (927) (767)
Balance at end of period 151,667 138,809
Commercial and industrial    
Allowance for Loan and Lease Losses [Roll Forward]    
Balance at beginning of period 19,599 11,106
(Reversal of) provision for credit losses on loans HFI (2,298) (10)
Recoveries of loans previously charged-off 14 67
Loans charged off (43) (46)
Balance at end of period 17,272 11,117
Construction    
Allowance for Loan and Lease Losses [Roll Forward]    
Balance at beginning of period 35,372 39,808
(Reversal of) provision for credit losses on loans HFI 2,028 1,217
Recoveries of loans previously charged-off 0 0
Loans charged off (92) 0
Balance at end of period 37,308 41,025
Residential real estate: | 1-to-4 family mortgage    
Allowance for Loan and Lease Losses [Roll Forward]    
Balance at beginning of period 26,505 26,141
(Reversal of) provision for credit losses on loans HFI (433) 1,073
Recoveries of loans previously charged-off 56 15
Loans charged off 0 (16)
Balance at end of period 26,128 27,213
Residential real estate: | Residential line of credit    
Allowance for Loan and Lease Losses [Roll Forward]    
Balance at beginning of period 9,468 7,494
(Reversal of) provision for credit losses on loans HFI 470 1,540
Recoveries of loans previously charged-off 0 0
Loans charged off (20) 0
Balance at end of period 9,918 9,034
Residential real estate: | Multi-family mortgage    
Allowance for Loan and Lease Losses [Roll Forward]    
Balance at beginning of period 8,842 6,490
(Reversal of) provision for credit losses on loans HFI 131 129
Recoveries of loans previously charged-off 0 0
Loans charged off 0 0
Balance at end of period 8,973 6,619
Commercial real estate: | Owner-occupied    
Allowance for Loan and Lease Losses [Roll Forward]    
Balance at beginning of period 10,653 7,783
(Reversal of) provision for credit losses on loans HFI 56 103
Recoveries of loans previously charged-off 40 66
Loans charged off 0 0
Balance at end of period 10,749 7,952
Commercial real estate: | Non-owner occupied    
Allowance for Loan and Lease Losses [Roll Forward]    
Balance at beginning of period 22,965 21,916
(Reversal of) provision for credit losses on loans HFI 984 (48)
Recoveries of loans previously charged-off 0 0
Loans charged off 0 0
Balance at end of period 23,949 21,868
Consumer and other    
Allowance for Loan and Lease Losses [Roll Forward]    
Balance at beginning of period 16,922 13,454
(Reversal of) provision for credit losses on loans HFI 914 993
Recoveries of loans previously charged-off 306 239
Loans charged off (772) (705)
Balance at end of period $ 17,370 $ 13,981