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		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 78,029	$ 72,665	$ 74,444	$ 74,965	$ 74,965
Loans charged-off	(467)	(123)	(7,320)	(2,034)	(2,995)
Recoveries of loans previously charged-off	127	179	406	2,304
Net loans (charged-off) recovered	(340)	56	(6,914)	270
Provision for (reversal of) credit losses	5,643	3,046	15,802	532
Ending Balance	83,332	75,767	83,332	75,767	74,444
Commercial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	15,374	15,754	15,655	14,475	14,475
Loans charged-off	(467)	(53)	(1,828)	(604)	(916)
Recoveries of loans previously charged-off	103	152	335	648
Net loans (charged-off) recovered	(364)	99	(1,493)	44
Provision for (reversal of) credit losses	1,327	20	2,175	1,354
Ending Balance	16,337	15,873	16,337	15,873	15,655
Income-producing - commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	38,486	34,120	35,688	38,287	38,287
Loans charged-off	0	0	(5,306)	0	(2,001)
Recoveries of loans previously charged-off	0	0	0	0
Net loans (charged-off) recovered	0	0	(5,306)	0
Provision for (reversal of) credit losses	2,207	2,207	10,311	(1,960)
Ending Balance	40,693	36,327	40,693	36,327	35,688
Owner-occupied - commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	12,805	12,796	12,702	12,146	12,146
Loans charged-off	0	0	0	(1,356)
Recoveries of loans previously charged-off	23	25	31	25
Net loans (charged-off) recovered	23	25	31	(1,331)
Provision for (reversal of) credit losses	1,424	(240)	1,519	1,766
Ending Balance	14,252	12,581	14,252	12,581	12,702
Real estate mortgage - residential
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	811	790	969	449	449
Loans charged-off	0	0	0	0
Recoveries of loans previously charged-off	0	0	0	0
Net loans (charged-off) recovered	0	0	0	0
Provision for (reversal of) credit losses	53	20	(105)	361
Ending Balance	864	810	864	810	969
Construction - commercial and residential
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	8,018	6,470	7,195	7,094	7,094
Loans charged-off	0	0	(136)	0
Recoveries of loans previously charged-off	0	0	34	1,627
Net loans (charged-off) recovered	0	0	(102)	1,627
Provision for (reversal of) credit losses	615	759	1,540	(1,492)
Ending Balance	8,633	7,229	8,633	7,229	7,195
Construction - C&I (Owner-Occupied)
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,914	2,024	1,606	2,005	2,005
Loans charged-off	0	0	0	0
Recoveries of loans previously charged-off	0	0	0	0
Net loans (charged-off) recovered	0	0	0	0
Provision for (reversal of) credit losses	(20)	261	288	280
Ending Balance	1,894	2,285	1,894	2,285	1,606
Home equity
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	595	647	555	474	474
Loans charged-off	0	0	0	0
Recoveries of loans previously charged-off	0	0	0	0
Net loans (charged-off) recovered	0	0	0	0
Provision for (reversal of) credit losses	39	(23)	79	150
Ending Balance	634	624	634	624	555
Other consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	26	64	74	35	35
Loans charged-off	0	(70)	(50)	(74)	(78)
Recoveries of loans previously charged-off	1	2	6	4
Net loans (charged-off) recovered	1	(68)	(44)	(70)
Provision for (reversal of) credit losses	(2)	42	(5)	73
Ending Balance	$ 25	$ 38	$ 25	$ 38	$ 74