Allowance for Credit Losses - Activity in Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	$ 90,769	$ 81,127	$ 83,315	$ 92,733
Allowance on PCD Loans Acquired During the Period			51	3,046
Provision for Credit Losses	4,676	5,091	12,054	(5,479)
Charge- Offs	(408)	(2,052)	(1,525)	(4,777)
Recoveries	305	620	1,467	2,320
TDR Allowance Adjustments	(13)	(9)	(33)	(20)
Ending Balance	95,329	87,823	95,329	87,823
Hurricane Ian
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Increase for allowance on future losses			2,100
Construction and land development
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	2,552	4,053	2,751	4,920
Allowance on PCD Loans Acquired During the Period			0	0
Provision for Credit Losses	792	(1,459)	529	(2,438)
Charge- Offs	0	0	0	0
Recoveries	1	10	65	124
TDR Allowance Adjustments	0	(1)	0	(3)
Ending Balance	3,345	2,603	3,345	2,603
Commercial real estate - owner-occupied
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	7,376	8,676	8,579	9,868
Allowance on PCD Loans Acquired During the Period			0	0
Provision for Credit Losses	(2,182)	(24)	(3,385)	(1,216)
Charge- Offs	0	0	0	0
Recoveries	0	0	0	0
TDR Allowance Adjustments	0	0	0	0
Ending Balance	5,194	8,652	5,194	8,652
Commercial real estate - non owner-occupied
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	46,459	34,807	36,617	38,266
Allowance on PCD Loans Acquired During the Period			31	1,327
Provision for Credit Losses	(6,841)	5,278	2,961	1,817
Charge- Offs	(179)	(1,327)	(179)	(1,327)
Recoveries	23	0	32	2
TDR Allowance Adjustments	0	0	0	0
Ending Balance	39,462	40,085	39,462	40,085
Residential real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	14,821	12,543	12,811	17,500
Allowance on PCD Loans Acquired During the Period			17	0
Provision for Credit Losses	11,193	1,456	12,901	(4,323)
Charge- Offs	0	(27)	(1)	(48)
Recoveries	31	158	334	1,008
TDR Allowance Adjustments	(8)	(3)	(25)	(10)
Ending Balance	26,037	14,127	26,037	14,127
Commercial and financial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	17,144	18,016	19,744	18,690
Allowance on PCD Loans Acquired During the Period			3	1,719
Provision for Credit Losses	(1,457)	(2)	(3,585)	1,172
Charge- Offs	(77)	(535)	(899)	(2,855)
Recoveries	92	326	440	798
TDR Allowance Adjustments	(1)	0	(2)	0
Ending Balance	15,701	19,524	15,701	19,524
Consumer
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	2,417	3,032	2,813	3,489
Allowance on PCD Loans Acquired During the Period			0	0
Provision for Credit Losses	3,171	(158)	2,633	(491)
Charge- Offs	(152)	(163)	(446)	(547)
Recoveries	158	126	596	388
TDR Allowance Adjustments	(4)	(5)	(6)	(7)
Ending Balance	5,590	2,832	5,590	2,832
Paycheck Protection Program
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	0	0	0	0
Allowance on PCD Loans Acquired During the Period		0	0	0
Provision for Credit Losses	0	0	0	0
Charge- Offs	0	0	0	0
Recoveries	0	0	0	0
TDR Allowance Adjustments	0	0	0	0
Ending Balance	$ 0	$ 0	$ 0	$ 0