Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Operating activities:
Net income	$ 51,738	$ 62,011
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of premises and equipment, and amortization	2,962	3,357
Amortization of intangible assets	2,930	2,862
Provision for (reversal of) credit losses on loans	10,145	(6,385)
Amortization of investment securities premium, net	6,297	2,855
Originations of loans for resale	(50,254)	(129,684)
Proceeds from sale of loans originated for resale	53,806	135,353
Gain on sale of loans	(1,788)	(6,094)
Change in market value of mortgage servicing rights	(410)	459
Provision for losses on foreclosed assets	0	9
Gain on transfer of loans to foreclosed assets	(97)	(20)
Gain on sale of foreclosed assets	0	(46)
Operating lease expense payments	(2,815)	(2,430)
Gain on disposal of fixed assets	(1,073)	(426)
Increase in cash value of life insurance	(1,390)	(1,418)
Loss on marketable equity securities	232	45
Equity compensation vesting expense	1,742	1,163
Change in:
Interest receivable	(3,175)	1,081
Interest payable	(699)	(336)
Amortization of operating lease ROUA	2,930	2,645
Other assets and liabilities, net	1,059	(6,195)
Net cash from operating activities	72,140	58,806
Investing activities:
Proceeds from maturities of securities available for sale	151,486	180,046
Proceeds from maturities of securities held to maturity	22,752	48,269
Purchases of securities available for sale	(654,691)	(620,634)
Loan origination and principal collections, net	(423,606)	(79,803)
Loans purchased	0	(101,466)
Proceeds from sale of other real estate owned	0	756
Proceeds from sale of premises and equipment	6,689	2,700
Purchases of premises and equipment	(2,223)	(854)
Cash acquired from VRB, net of cash consideration paid	426,883	0
Net cash used by investing activities	(472,710)	(570,986)
Financing activities:
Net change in deposits	174,137	486,119
Net change in other borrowings	(14,998)	13,645
Repurchase of common stock, net of option exercises	(22,586)	(2,561)
Dividends paid	(15,792)	(14,862)
Exercise of stock options	256	28
Net cash from financing activities	121,017	482,369
Net change in cash and cash equivalents	(279,553)	(29,811)
Cash and cash equivalents, beginning of period	768,421	669,551
Cash and cash equivalents, end of period	488,868	639,740
Supplemental disclosure of noncash activities:
Unrealized loss on securities available for sale	(208,710)	(4,945)
Loans transferred to held-for-sale	12,044	0
Market value of shares tendered in-lieu of cash to pay for exercise of options and/or related taxes	829	451
Obligations incurred in conjunction with leased assets	3,867	1,308
Loans transferred to foreclosed assets	688	102
Supplemental disclosure of cash flow activity:
Cash paid for interest expense	3,353	3,208
Cash paid for income taxes	$ 12,000	$ 33,300