Business Segment Information - Operating Statements (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Operating Income
Interest income	$ 60,791			$ 50,174			$ 175,406	$ 133,636
Total interest expense	15,419			2,133			34,483	5,495
Net interest income	45,372			48,041			140,923	128,141
Provision for credit losses on loans	168			1,006			460	258
Net interest income after provision	45,204			47,035			140,463	127,883
Noninterest income	2,216			2,781			7,056	7,339
Noninterest expense	25,171			23,899			75,563	70,341
Income before income taxes	22,249			25,917			71,956	64,881
Income tax expense	6,454			7,848			20,841	19,125
Net income	15,795	$ 16,403	$ 18,917	18,069	$ 14,821	$ 12,866	51,115	45,756
Total assets	5,403,307			5,431,262			5,403,307	5,431,262	$ 5,157,580
Loans, net of deferred fees	3,285,461			3,216,473			3,285,461	3,216,473	3,298,550
Goodwill	167,631			167,631			167,631	167,631	167,631
Banking
Operating Income
Interest income	58,016			46,973			164,783	124,513
Intersegment interest allocations	397			329			1,626	887
Total interest expense	15,419			2,133			34,483	5,495
Net interest income	42,994			45,169			131,926	119,905
Provision for credit losses on loans	254			1,126			807	259
Net interest income after provision	42,740			44,043			131,119	119,646
Noninterest income	2,044			2,677			6,743	7,049
Noninterest expense	23,588			22,216			70,645	65,542
Intersegment expense allocations	109			128			435	370
Income before income taxes	21,305			24,632			67,652	61,523
Income tax expense	6,175			7,468			19,572	18,132
Net income	15,130			17,164			48,080	43,391
Total assets	5,314,922			5,355,212			5,314,922	5,355,212
Loans, net of deferred fees	3,233,379			3,155,923			3,233,379	3,155,923
Goodwill	154,587			154,587			154,587	154,587	154,587
Factoring
Operating Income
Interest income	2,775			3,201			10,623	9,123
Intersegment interest allocations	(397)			(329)			(1,626)	(887)
Net interest income	2,378			2,872			8,997	8,236
Provision for credit losses on loans	(86)			(120)			(347)	(1)
Net interest income after provision	2,464			2,992			9,344	8,237
Noninterest income	172			104			313	290
Noninterest expense	1,583			1,683			4,918	4,799
Intersegment expense allocations	(109)			(128)			(435)	(370)
Income before income taxes	944			1,285			4,304	3,358
Income tax expense	279			380			1,269	993
Net income	665			905			3,035	2,365
Total assets	88,385			76,050			88,385	76,050
Loans, net of deferred fees	52,082			60,550			52,082	60,550
Goodwill	$ 13,044			$ 13,044			$ 13,044	$ 13,044	$ 13,044