Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
OPERATING ACTIVITIES
Net income before noncontrolling interest	$ 28,895	$ 25,573
Adjustments to reconcile net income to net cash from operating activities:
Net amortization and accretion of investments	3,011	1,112
Net amortization of deferred loan costs	2,062	779
Provision for loan losses	(542)	16,365
Depreciation and amortization	2,800	761
Stock-based compensation	2,339	1,717
Loans originated for sale	(23,950)	(1,334,910)
Proceeds of loans sold	17,871	1,475,854
Holding gain on equity securities	(1,750)	(111)
Mortgage fee income	0	(33,427)
Gain on sale of available-for-sale securities	(3,411)	(899)
Loss on sale of available-for-sale securities	31	34
Gain on sale of equity securities	(5)	(48)
Gain on sale of loans	(3,125)	(302)
Gains on acquisition and divestiture activity	(10,783)	(14,302)
Gain on sale of other real estate owned	(116)	0
Income on bank-owned life insurance	(749)	(663)
Deferred income taxes	(1,186)	3,958
Equity method investment income	(14,570)	(13,620)
Return on equity method investment	29,795	(3,338)
Other assets	(503)	(36,669)
Other liabilities	(14,327)	3,444
Net cash from operating activities	11,787	91,308
INVESTING ACTIVITIES
Purchases of available-for-sale investment securities	(176,468)	(132,896)
Maturities/paydowns of available-for-sale investment securities	38,846	42,770
Sales of available-for-sale investment securities	103,365	48,579
Purchases of premises and equipment	(3,589)	(4,211)
Disposals of premises and equipment	0	1,687
Loans, net	(356,623)	(43,869)
Purchases of restricted bank stock	(1,410)	(24,013)
Redemptions of restricted bank stock	2,821	33,578
Proceeds from sale of certificates of deposit with banks	2,221	1,241
Purchases of certificates of deposit with banks	0	(993)
Proceeds from sale of other real estate owned	2,761	7,700
Purchase of equity securities	(3,472)	(6,260)
Sales of equity securities	61	669
Net cash transferred for banking center sale	(95,697)	0
Cash paid for acquisitions, net of cash acquired	(772)	(78,699)
Net cash from investing activities	(487,956)	(154,717)
FINANCING ACTIVITIES
Deposits, net	579,875	491,259
Repurchase agreements, net	873	(127)
FHLB and other borrowings, net	0	(154,483)
Issuance of subordinated debt	30,000	0
Payment of subordinated debt issuance costs	441	0
Preferred stock redemption	(7,334)	0
Common stock repurchased	0	(1,921)
Common stock options exercised	3,405	75
Withholding cash issued in lieu of restricted stock	(256)	0
Cash dividends paid on common stock	(4,230)	(3,228)
Cash dividends paid on preferred stock	(35)	(345)
Issuance of subsidiary membership units	500	0
Net cash from financing activities	602,357	331,230
Increase in cash and cash equivalents	126,188	267,821
Cash and cash equivalents, beginning of period	263,893	28,002
Cash and cash equivalents, end of period	390,081	295,823
Cash payments for:
Interest on deposits, repurchase agreements and borrowings	4,488	13,275
Income taxes	9,600	7,613
Business combination non-cash disclosures:
Assets acquired in business combination (net of cash received)	739	87,722
Liabilities assumed in business combination	605	148,731
Supplemental disclosure of cash flow information:
Fair value of noncontrolling interests at acquisition date	1,400	0
Loans transferred to other real estate owned	357	800
Employee stock-based compensation tax withholding obligations	4,155	35
Restricted stock units vested	70	49
Common stock issued related to investments and acquisitions	$ 708	$ 240