CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Interest income:
Interest and fees on loans	$ 77,959	$ 75,907	$ 150,473	$ 155,621
Interest and dividends on taxable investments	24,899	16,789	47,491	31,964
Interest and dividends on nontaxable investments	3,317	2,664	5,907	5,440
Total interest income	106,175	95,360	203,871	193,025
Interest expense:
Interest on deposits	2,691	2,963	5,256	6,075
Interest on borrowings	304	253	525	521
Interest on subordinated notes payable	39	39	77	77
Interest on subordinated debt held by unconsolidated subsidiary trusts	0	0	0	293
Total interest expense	3,034	3,255	5,858	6,966
Net interest income	103,141	92,105	198,013	186,059
Provision for credit losses	6,038	(4,338)	6,944	(10,057)
Net interest income after provision for credit losses	97,103	96,443	191,069	196,116
Noninterest revenues:
Deposit service fees	16,138	14,236	32,293	28,316
Mortgage banking	269	331	424	1,019
Other banking services	870	980	1,609	1,834
Employee benefit services	28,921	27,477	58,501	54,010
Insurance services	9,780	8,209	20,189	16,362
Wealth management services	8,141	8,227	16,774	16,426
Unrealized (loss) gain on equity securities	(22)	0	(20)	24
Total noninterest revenues	64,097	59,460	129,770	117,991
Noninterest expenses:
Salaries and employee benefits	65,398	57,892	127,046	115,524
Occupancy and equipment	10,424	10,270	21,376	21,570
Data processing and communications	13,611	12,766	26,270	25,157
Amortization of intangible assets	3,851	3,246	7,583	6,597
Legal and professional fees	3,385	2,499	7,002	5,533
Business development and marketing	3,616	2,659	6,359	4,689
Acquisition expenses	3,960	4	4,259	31
Acquisition-related contingent consideration adjustment	400	0	400	0
Other expenses	5,779	4,207	9,936	7,688
Total noninterest expenses	110,424	93,543	210,231	186,789
Income before income taxes	50,776	62,360	110,608	127,318
Income taxes	10,971	14,416	23,748	26,524
Net income	$ 39,805	$ 47,944	$ 86,860	$ 100,794
Basic earnings per share	$ 0.74	$ 0.89	$ 1.61	$ 1.86
Diluted earnings per share	$ 0.73	$ 0.88	$ 1.60	$ 1.85