Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Assets
Cash and due from banks	$ 2,266,829	$ 1,952,504
Federal funds sold and securities purchased under reverse repurchase agreements		50
Securities available for sale, at fair value (amortized cost: $3,256,289-2021; $1,959,773-2020; allowance for credit losses (ACL): $0)	3,238,877	1,991,815
Securities held to maturity, net of ACL of $0 (fair value: $353,511-2021; $563,115-2020)	342,537	538,072
Paycheck Protection Program (PPP) loans	33,336	610,134
Loans held for sale (LHFS)	275,706	446,951
Loans held for investment (LHFI)	10,247,829	9,824,524
Less ACL, LHFI	99,457	117,306
Net LHFI	10,148,372	9,707,218
Premises and equipment, net	205,644	194,278
Mortgage servicing rights (MSR)	87,687	66,464
Goodwill	384,237	385,270
Identifiable intangible assets, net	5,074	7,390
Other real estate	4,557	11,651
Operating lease right-of-use assets	34,603	30,901
Other assets	568,177	609,142
Total Assets	17,595,636	16,551,840
Deposits:
Noninterest-bearing	4,771,065	4,349,010
Interest-bearing	10,316,095	9,699,754
Total deposits	15,087,160	14,048,764
Federal funds purchased and securities sold under repurchase agreements	238,577	164,519
Other borrowings	91,025	168,252
Subordinated notes	123,042	122,921
Junior subordinated debt securities	61,856	61,856
ACL on off-balance sheet credit exposures	35,623	38,572
Operating lease liabilities	36,468	32,290
Other liabilities	180,574	173,549
Total Liabilities	15,854,325	14,810,723
Shareholders' Equity
Common stock, no par value: Authorized: 250,000,000 shares Issued and outstanding: 61,648,679 shares - 2021; 63,424,526 shares - 2020	12,845	13,215
Capital surplus	175,913	233,120
Retained earnings	1,585,113	1,495,833
Accumulated other comprehensive income (loss), net of tax	(32,560)	(1,051)
Total Shareholders' Equity	1,741,311	1,741,117
Total Liabilities and Shareholders' Equity	$ 17,595,636	$ 16,551,840