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, 2025	Mar. 31, 2024
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	$ 151,942	$ 150,326
Provision for (reversal of) credit losses on loans HFI	1,906	1,852
Recoveries of loans previously charged-off	576	416
Loans charged-off	(3,893)	(927)
Balance at end of period	150,531	151,667
Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	16,667	19,599
Provision for (reversal of) credit losses on loans HFI	1,713	(2,298)
Recoveries of loans previously charged-off	42	14
Loans charged-off	(2,901)	(43)
Balance at end of period	15,521	17,272
Construction
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	31,698	35,372
Provision for (reversal of) credit losses on loans HFI	(6,046)	2,028
Recoveries of loans previously charged-off	0	0
Loans charged-off	0	(92)
Balance at end of period	25,652	37,308
Residential real estate: \| 1-to-4 family mortgage
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	25,340	26,505
Provision for (reversal of) credit losses on loans HFI	854	(433)
Recoveries of loans previously charged-off	9	56
Loans charged-off	(3)	0
Balance at end of period	26,200	26,128
Residential real estate: \| Residential line of credit
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	10,952	9,468
Provision for (reversal of) credit losses on loans HFI	244	470
Recoveries of loans previously charged-off	0	0
Loans charged-off	0	(20)
Balance at end of period	11,196	9,918
Residential real estate: \| Multi-family mortgage
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	10,512	8,842
Provision for (reversal of) credit losses on loans HFI	904	131
Recoveries of loans previously charged-off	0	0
Loans charged-off	0	0
Balance at end of period	11,416	8,973
Commercial real estate: \| Owner-occupied
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	11,993	10,653
Provision for (reversal of) credit losses on loans HFI	77	56
Recoveries of loans previously charged-off	21	40
Loans charged-off	(17)	0
Balance at end of period	12,074	10,749
Commercial real estate: \| Non-owner occupied
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	25,531	22,965
Provision for (reversal of) credit losses on loans HFI	2,787	984
Recoveries of loans previously charged-off	1	0
Loans charged-off	0	0
Balance at end of period	28,319	23,949
Consumer and other
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period	19,249	16,922
Provision for (reversal of) credit losses on loans HFI	1,373	914
Recoveries of loans previously charged-off	503	306
Loans charged-off	(972)	(772)
Balance at end of period	$ 20,153	$ 17,370

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

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- Definition

Amount of increase in allowance for credit loss on financing receivable from recovery.

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Amount of writeoff of financing receivable, charged against allowance for credit loss.

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