CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net income	$ 58,614	$ 45,353	$ 29,220
Adjustments to reconcile net income to net cash from operating activities:
Provision for loan losses	(1,918)	25,570	2,799
Depreciation and amortization	6,436	6,575	5,225
Net amortization of premium on investment securities	4,513	3,166	252
Other gains, net	(729)	(2,539)	40
Net gain on sales of loans	(51,184)	(63,531)	(23,521)
Proceeds from sales of loans held for sale	1,577,953	1,434,173	652,216
Loans originated for sale	(1,500,995)	(1,442,913)	(640,680)
Earnings on bank-owned life insurance	(1,247)	(1,334)	(1,293)
Stock-based compensation	1,639	1,272	853
Change in valuation of mortgage servicing rights	(1,455)	2,834	548
Net change in:
Accrued interest receivable and other assets	244	(4,610)	321
Accrued expenses and other liabilities	4,400	1,611	4,504
Net cash from operating activities	96,271	5,627	30,484
Activity in securities available for sale:
Purchases	(61,548)	(279,727)	(489,032)
Sales	0	94,514	52,495
Maturities, prepayments, and calls	120,325	114,850	139,255
Loan originations and principal collections, net	(218,458)	(84,991)	5,572
Cash paid for acquisition	0	(687)	0
Net cash received in business combinations	0	0	78,171
Goodwill adjustment related to litigation settlement	0	460	0
Purchases of premises and equipment, net	(2,920)	(3,310)	(3,997)
Proceeds from sales of premises and equipment	1,458	222	208
Proceeds from sales of foreclosed assets	1,302	2,441	3,835
Net cash from investing activities	(159,841)	(156,228)	(213,493)
Cash flows from financing activities:
Net change in deposits	366,871	277,494	33,227
Net change in short-term borrowings	(26,550)	(10,615)	19,460
Proceeds from common stock issuance, net	0	0	51,392
Proceeds from subordinated debt issuance, net	0	49,070	0
Proceeds from notes payable and other borrowings	0	75,000	(351)
Payments to tax authorities for stock-based compensation	(625)	(319)	0
Payments made on notes payable and other borrowings	(75,000)	(95,000)	(7,530)
Cash dividends on common stock	(5,385)	(2,528)	(1,079)
Payments to repurchase common stock	(9,227)	(293)	0
Net cash from financing activities	250,084	292,809	95,119
Net change in cash and cash equivalents	186,514	142,208	(87,890)
Beginning cash and cash equivalents	300,307	158,099	245,989
Ending cash and cash equivalents	486,821	300,307	158,099
Supplemental disclosures of cash flow information:
Interest paid on deposits and borrowed funds	13,471	16,116	28,125
Income taxes paid	12,400	13,513	6,474
Supplemental schedule of noncash activities:
Loans transferred to foreclosed assets	927	1,867	2,452
Business combination measurement period adjustment	0	1,211	0
Additions to mortgage servicing rights	$ 9,196	$ 9,829	$ 1,332