Loans and Allowance for Credit Losses - Schedule of Detail Activity in the Allowance for Credit Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 74,444	$ 74,965	$ 74,965
Loans charged-off	(1,054)	(514)	(2,995)
Recoveries of loans previously charged-off	79	55
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery)	(975)	(459)
Provision for (reversal of) credit losses	4,908	(3,001)
Ending Balance	78,377	71,505	74,444
Commercial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	15,655	14,475	14,475
Loans charged-off	(868)	(514)	(916)
Recoveries of loans previously charged-off	76	54
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery)	(792)	(460)
Provision for (reversal of) credit losses	912	(1,069)
Ending Balance	15,775	12,946	15,655
Income-producing - commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	35,688	38,287	38,287
Loans charged-off	0	0	(2,001)
Recoveries of loans previously charged-off	0	0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery)	0	0
Provision for (reversal of) credit losses	2,452	906
Ending Balance	38,140	39,193	35,688
Owner-occupied - commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	12,702	12,146	12,146
Loans charged-off	0	0
Recoveries of loans previously charged-off	0	0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery)	0	0
Provision for (reversal of) credit losses	(245)	(1,631)
Ending Balance	12,457	10,515	12,702
Real estate mortgage - residential
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	969	449	449
Loans charged-off	0	0
Recoveries of loans previously charged-off	0	0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery)	0	0
Provision for (reversal of) credit losses	33	(68)
Ending Balance	1,002	381	969
Construction - commercial and residential
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	8,801	9,099	9,099
Loans charged-off	(136)	0
Recoveries of loans previously charged-off	0	0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery)	(136)	0
Provision for (reversal of) credit losses	1,718	(1,126)
Ending Balance	10,383	7,973	8,801
Home equity
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	555	474	474
Loans charged-off	0	0
Recoveries of loans previously charged-off	0	0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery)	0	0
Provision for (reversal of) credit losses	38	(7)
Ending Balance	593	467	555
Other consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	74	35	35
Loans charged-off	(50)	0	(78)
Recoveries of loans previously charged-off	3	1
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery)	(47)	1
Provision for (reversal of) credit losses	0	(6)
Ending Balance	$ 27	$ 30	$ 74

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 of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Amount of increase (decrease) in allowance for credit loss on financing receivable.

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Amount, excluding accrued interest, of decrease (increase) in allowance for credit loss on financing receivable from writeoff (recovery). Excludes net investment in lease.

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