Loans and Allowance for Credit Losses - Summary of Changes in Allowance for Credit Losses Disaggregated by Loan Category (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses-loan portfolio, Beginning Balance	$ 35,880
Provision for (release of) credit losses - unfunded commitments	3,881	$ (1,294)	$ 18,310
Allowance for credit losses-loan portfolio, Ending Balance	39,870	35,880
Funded Commitments
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses-loan portfolio, Beginning Balance	34,496	36,016
Provision for acquired loans	2,102
Initial allowance for PCD	56
Charge-offs	(52)	(87)
Recoveries	105	241
Provision for (release of) credit losses - loan portfolio	1,067	(1,674)
Allowance for credit losses-loan portfolio, Ending Balance	37,774	34,496	36,016
Unfunded Commitments
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses-loan portfolio, Beginning Balance	1,384	1,004
Acquired loan commitments	137
Provision for (release of) credit losses - unfunded commitments	575	380
Allowance for credit losses-unfunded commitments	2,096	1,384
Allowance for credit losses-loan portfolio, Ending Balance		1,384	1,004
Residential Mortgage
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses-loan portfolio, Beginning Balance	13,383
Allowance for credit losses-loan portfolio, Ending Balance	13,321	13,383
Residential Mortgage \| Funded Commitments
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses-loan portfolio, Beginning Balance	13,383	13,067
Provision for acquired loans	527
Initial allowance for PCD	19
Charge-offs		(4)
Recoveries	4
Provision for (release of) credit losses - loan portfolio	(612)	320
Allowance for credit losses-loan portfolio, Ending Balance	13,321	13,383	13,067
Commercial Mortgage
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses-loan portfolio, Beginning Balance	17,133
Allowance for credit losses-loan portfolio, Ending Balance	19,086	17,133
Commercial Mortgage \| Funded Commitments
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses-loan portfolio, Beginning Balance	17,133	18,564
Provision for acquired loans	1,337
Initial allowance for PCD	37
Recoveries		30
Provision for (release of) credit losses - loan portfolio	579	(1,461)
Allowance for credit losses-loan portfolio, Ending Balance	19,086	17,133	18,564
Home Equity
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses-loan portfolio, Beginning Balance	406
Allowance for credit losses-loan portfolio, Ending Balance	573	406
Home Equity \| Funded Commitments
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses-loan portfolio, Beginning Balance	406	552
Provision for acquired loans	117
Provision for (release of) credit losses - loan portfolio	50	(146)
Allowance for credit losses-loan portfolio, Ending Balance	573	406	552
Commercial & Industrial
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses-loan portfolio, Beginning Balance	2,989
Allowance for credit losses-loan portfolio, Ending Balance	4,153	2,989
Commercial & Industrial \| Funded Commitments
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses-loan portfolio, Beginning Balance	2,989	3,309
Provision for acquired loans	113
Charge-offs	(23)	(41)
Recoveries	89	181
Provision for (release of) credit losses - loan portfolio	985	(460)
Allowance for credit losses-loan portfolio, Ending Balance	4,153	2,989	3,309
Consumer
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses-loan portfolio, Beginning Balance	585
Allowance for credit losses-loan portfolio, Ending Balance	641	585
Consumer \| Funded Commitments
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses-loan portfolio, Beginning Balance	585	524
Provision for acquired loans	8
Charge-offs	(29)	(42)
Recoveries	12	30
Provision for (release of) credit losses - loan portfolio	65	73
Allowance for credit losses-loan portfolio, Ending Balance	641	585	524
Unfunded Commitments
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses-loan portfolio, Beginning Balance	1,384
Allowance for credit losses-loan portfolio, Ending Balance	2,096	1,384
Unfunded Commitments \| Unfunded Commitments
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses-loan portfolio, Beginning Balance	1,384	1,004
Acquired loan commitments	137
Provision for (release of) credit losses - unfunded commitments	575	380
Allowance for credit losses-unfunded commitments	$ 2,096	1,384
Allowance for credit losses-loan portfolio, Ending Balance		$ 1,384	$ 1,004

Financing receivable, acquired loan commitments.

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Financing receivable allowance for credit losses unfunded commitments.

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

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