Noninterest Income and Expense - Summary of Noninterest Income and Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Noninterest Income [Abstract]
Interchange income	$ 4,145	$ 3,187	$ 7,965	$ 6,433
Marine finance fees	177	157	366	303
SBA gains	232	181	519	320
BOLI income	872	887	1,731	1,773
Other income	2,249	2,147	5,993	5,499
Noninterest income, gross	15,377	13,776	33,162	28,445
Securities (losses) gains, net	(55)	1,230	(169)	1,249
Total Noninterest Income (Note I – Noninterest Income and Expense)	15,322	15,006	32,993	29,694
Noninterest expense
Salaries and wages	22,966	20,226	44,359	43,924
Employee benefits	3,953	3,379	8,933	7,634
Outsourced data processing costs	4,676	4,059	9,144	8,692
Telephone/data lines	838	791	1,623	1,505
Occupancy	3,310	3,385	7,099	6,738
Furniture and equipment	1,166	1,358	2,420	2,981
Marketing	1,002	997	2,170	2,275
Legal and professional fees	2,182	2,277	4,764	5,640
FDIC assessments	515	266	1,041	266
Amortization of intangibles	1,212	1,483	2,423	2,939
Foreclosed property expense and net (gain) loss on sale	(90)	245	(155)	(70)
Provision for credit losses on unfunded commitments	0	178	0	224
Other	4,054	3,755	8,083	7,449
Total	45,784	42,399	91,904	90,197
Service charges on deposit accounts
Noninterest Income [Abstract]
Revenue from contracts with customers	2,338	1,939	4,676	4,764
Wealth management income
Noninterest Income [Abstract]
Revenue from contracts with customers	2,387	1,719	4,710	3,586
Mortgage banking fees
Noninterest Income [Abstract]
Revenue from contracts with customers	$ 2,977	$ 3,559	$ 7,202	$ 5,767