Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Assets
Cash and due from banks	$ 734,787	$ 2,266,829
Federal funds sold and securities purchased under reverse repurchase agreements	4,000	0
Securities available for sale, at fair value (amortized cost: $2,270,709-2022; $3,256,289-2021; allowance for credit losses (ACL): $0)	2,024,082	3,238,877
Securities held to maturity, net of ACL of $0 (fair value: $1,406,589-2022; $353,511-2021)	1,494,514	342,537
Paycheck Protection Program (PPP) loans	0	33,336
Loans held for sale (LHFS)	135,226	275,706
Loans held for investment (LHFI)	12,204,039	10,247,829
Less ACL, LHFI	120,214	99,457
Net LHFI	12,083,825	10,148,372
Premises and equipment, net	212,365	205,644
Mortgage servicing rights (MSR)	129,677	87,687
Goodwill	384,237	384,237
Identifiable intangible assets, net	3,640	5,074
Other real estate, net	1,986	4,557
Operating lease right-of-use assets	36,301	34,603
Other assets	770,838	568,177
Total Assets	18,015,478	17,595,636
Deposits:
Noninterest-bearing	4,093,771	4,771,065
Interest-bearing	10,343,877	10,316,095
Total deposits	14,437,648	15,087,160
Federal funds purchased and securities sold under repurchase agreements	449,331	238,577
Other borrowings	1,050,938	91,025
Subordinated notes	123,262	123,042
Junior subordinated debt securities	61,856	61,856
ACL on off-balance sheet credit exposures	36,838	35,623
Operating lease liabilities	38,932	36,468
Other liabilities	324,405	180,574
Total Liabilities	16,523,210	15,854,325
Shareholders' Equity
Common stock, no par value: Authorized: 250,000,000 shares Issued and outstanding: 60,977,686 shares - 2022; 61,648,679 shares - 2021	12,705	12,845
Capital surplus	154,645	175,913
Retained earnings	1,600,321	1,585,113
Accumulated other comprehensive income (loss), net of tax	(275,403)	(32,560)
Total Shareholders' Equity	1,492,268	1,741,311
Total Liabilities and Shareholders' Equity	$ 18,015,478	$ 17,595,636