Consolidated Statements of Income and Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Interest and fee income on loans:
Taxable	$ 137,669	$ 120,853	$ 122,952
Tax exempt	21,634	24,402	14,661
Interest and dividend income on securities:
Taxable	7,964	10,089	15,719
Tax exempt	15	11	75
Other interest income	2,072	1,482	2,431
Total interest income	169,354	156,837	155,838
Interest expense:
Interest expense on deposits	8,544	15,642	23,052
Interest expense on securities sold under agreements to repurchase	59	157	728
Interest expense on other borrowed funds	5,518	5,085	4,836
Total interest expense	14,121	20,884	28,616
Net interest income	155,233	135,953	127,222
Provision for loan losses	3,000	23,100	6,050
Net interest income after provision for loan losses	152,233	112,853	121,172
Noninterest income:
Service charges on deposit accounts	12,504	9,630	11,104
Credit and debit card fees	9,596	7,994	7,785
Trust and investment advisory fees	7,795	5,201	3,768
Income from mortgage banking services, net	86,410	122,174	42,992
Gain on sales of available-for-sale securities, net	0	153	1,583
Gain on other real estate owned and foreclosed assets activity, net	766	148	303
Other noninterest income	7,173	3,085	3,432
Total noninterest income	124,244	148,385	70,967
Noninterest expense:
Salary and employee benefits	151,926	139,980	104,699
Occupancy and equipment	26,565	26,716	23,439
Amortization of intangible assets	1,417	1,485	1,896
Merger related expenses	3,085	0	0
Other noninterest expenses	41,642	35,892	40,166
Total noninterest expense	224,635	204,073	170,200
Income before income taxes	51,842	57,165	21,939
Provision for income taxes	8,678	9,580	1,436
Net income	43,164	47,585	20,503
Other comprehensive income:
Reclassification adjustment for net gain on sales of available-for-sale securities	0	(153)	(1,583)
Change in unrealized (loss) gain on available-for-sale securities	(9,870)	9,766	18,098
Income tax effect on other comprehensive income	2,415	(2,352)	(4,022)
Comprehensive income	35,709	54,846	32,996
Earnings per share:
Net income available to common stockholders, basic	43,164	47,585	20,503
Net income available to common stockholders, diluted	$ 43,164	$ 47,585	$ 20,503
Basic (in dollars per share)	$ 2.36	$ 2.60	$ 1.05
Diluted (in dollars per share)	$ 2.30	$ 2.58	$ 1.03