Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
OPERATING ACTIVITIES
Net income before noncontrolling interest	$ 38,696	$ 37,411	$ 26,991
Adjustments to reconcile net income to net cash from operating activities:
Net amortization and accretion of investments	4,054	1,892	1,258
Net amortization of deferred loan (fees) costs	2,969	1,692	(448)
Provision (release of allowance) for loan losses	(6,275)	16,579	1,789
Depreciation and amortization	4,198	3,292	3,260
Stock-based compensation	2,634	2,353	1,759
Stock-based compensation related to equity method investment	574	0	0
Loans originated for sale	(30,033)	(1,334,910)	(1,604,825)
Proceeds of loans sold	22,024	1,477,063	1,611,889
Holding gain on equity securities	(3,776)	(374)	(13,767)
Mortgage fee income	0	(33,427)	(41,045)
Gain on sale of available-for-sale securities	(3,944)	(948)	(105)
Loss on sale of available-for-sale securities	69	34	271
Gain on sale of equity securities	(5)	(3,501)	0
Loss on sale of equity securities	0	0	7
Gain on sale of loans, net	(4,178)	(332)	(520)
Gains on acquisition and divestiture activity	(10,783)	(17,640)	0
Gain on sale of other real estate owned	(1,396)
Income on bank-owned life insurance, including death benefit proceeds in excess of cash surrender value	(995)	(888)	(1,197)
Deferred taxes	6,129	(3,386)	(3,953)
Amortization of operating lease right-of-use asset	95	86	10
Equity method investment income	(17,428)	(27,574)	0
Return on equity method investment	31,032	3,400	0
Other assets	(1,535)	(27,286)	(14,753)
Other liabilities	2,689	18,699	25,317
Net cash from operating activities	34,815	112,235	(8,062)
INVESTING ACTIVITIES
Purchases of investment securities available-for-sale	(216,621)	(269,790)	(70,984)
Maturities/paydowns of investment securities available-for-sale	49,248	64,493	33,583
Sales of investment securities available-for-sale	146,011	54,023	31,220
Purchases of premises and equipment	(4,865)	(6,615)	(2,042)
Disposals of premises and equipment	300	1,687	0
Net increase in loans and loans included in assets of branches held-for-sale	(460,672)	(70,186)	(113,076)
Purchases of restricted bank stock	(1,410)	(25,831)	(49,600)
Redemptions of restricted bank stock	2,364	38,048	45,853
Proceeds from sale of certificates of deposit with banks	9,084	1,739	2,229
Purchases of certificates of deposit with banks	0	(993)	0
Proceeds from sale of other real estate owned	3,818	8,309	731
Purchase of bank-owned life insurance	0	(5,000)	(574)
Proceeds from death benefit of bank-owned life insurance policies	0	0	688
Purchase of equity method investment	(500)	0	0
Purchase of equity securities	(2,982)	(9,918)	(1,400)
Sales of equity securities	543	4,622	5,968
Proceeds from divestitures	(95,500)	(136,005)	0
Cash paid for acquisitions, net of cash acquired	(772)	57,306	(2,651)
Net cash from investing activities	(571,954)	(294,111)	(120,055)
FINANCING ACTIVITIES
Net increase in deposits and deposits in branches held-for-sale	558,342	574,691	144,158
Net change in repurchase agreements	1,119	94	(4,753)
Net change in FHLB and other borrowings	0	(180,283)	7,998
Subordinated debt issuance (redemption)	30,000	40,000	(12,400)
Subordinated debt issuance and conversion costs	(552)	(717)	0
Common stock repurchased	0	(15,746)	0
Preferred stock redemption	(7,334)	0	(500)
Common stock options exercised	4,930	4,464	2,164
Withholding cash issued in lieu of restricted stock	(249)	0	0
Cash dividends paid on common stock	(6,038)	(4,275)	(2,290)
Cash dividends paid on preferred stock	(35)	(461)	(479)
Issuance of subsidiary membership units	500	0	0
Net cash from financing activities	580,683	417,767	133,898
Net change in cash and cash equivalents	43,544	235,891	5,781
Cash and cash equivalents at beginning of period	263,893	28,002	22,221
Cash and cash equivalents at end of period	307,437	263,893	28,002
Business combination non-cash disclosures:
Assets acquired in business combinations (net of cash received)	739,000	87,722	3,389
Liabilities assumed in business combination	605,000	148,731	855
Supplemental disclosure of cash flow information:
Loans transferred to other real estate owned	357	800	115
Change in unrealized holding gains (losses) on securities available-for-sale	(9,595)	6,193	8,726
Fair value of non-controlling interests at acquisition date	1,400	0	0
Employee stock-based compensation tax withholding obligations	(7)	35	57
Restricted stock units vested	77	49	10
Common stock converted from subordinated debt	0	0	1,000
Initial recognition of operating lease right-of-use assets	0	0	12,935
Initial recognition of operating lease liabilities	0	0	15,659
Common stock issued related to investments and acquisitions	5,074	240	0
Cash payments for:
Interest on deposits, repurchase agreements and borrowings	6,152	12,271	22,970
Income taxes	$ 11,960	$ 11,966	$ 3,962