Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Assets
Cash and due from banks	$ 975,543	$ 734,787
Federal funds sold and securities purchased under reverse repurchase agreements	0	4,000
Securities available for sale, at fair value (amortized cost: $1,959,007-2023; $2,270,709-2022; allowance for credit losses (ACL): $0)	1,762,878	2,024,082
Securities held to maturity, net of ACL of $0 (fair value: $1,355,504-2023; $1,406,589-2022)	1,426,279	1,494,514
Loans held for sale (LHFS)	184,812	135,226
Loans held for investment (LHFI)	12,950,524	12,204,039
Less ACL, LHFI	139,367	120,214
Net LHFI	12,811,157	12,083,825
Premises and equipment, net	232,537	212,365
Mortgage servicing rights (MSR)	131,870	129,677
Goodwill	384,237	384,237
Identifiable intangible assets, net	2,965	3,640
Other real estate, net	6,867	1,986
Operating lease right-of-use assets	38,142	36,301
Other assets	764,902	770,838
Total Assets	18,722,189	18,015,478
Deposits:
Noninterest-bearing	3,197,620	4,093,771
Interest-bearing	12,372,143	10,343,877
Total deposits	15,569,763	14,437,648
Federal funds purchased and securities sold under repurchase agreements	405,745	449,331
Other borrowings	483,230	1,050,938
Subordinated notes	123,482	123,262
Junior subordinated debt securities	61,856	61,856
ACL on off-balance sheet credit exposures	34,057	36,838
Operating lease liabilities	41,584	38,932
Other liabilities	340,625	324,405
Total Liabilities	17,060,342	16,523,210
Shareholders' Equity
Common stock, no par value: Authorized: 250,000,000 shares Issued and outstanding: 61,071,173 shares - 2023; 60,977,686 shares - 2022	12,725	12,705
Capital surplus	159,688	154,645
Retained earnings	1,709,157	1,600,321
Accumulated other comprehensive income (loss), net of tax	(219,723)	(275,403)
Total Shareholders' Equity	1,661,847	1,492,268
Total Liabilities and Shareholders' Equity	$ 18,722,189	$ 18,015,478