Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Assets
Cash and due from banks	$ 832,052	$ 734,787
Federal funds sold and securities purchased under reverse repurchase agreements	0	4,000
Securities available for sale, at fair value (amortized cost: $2,107,609 - 2023 $2,270,709 - 2022; allowance for credit losses (ACL): $0)	1,871,883	2,024,082
Securities held to maturity, net of ACL of $0 (fair value: $1,366,377 - 2023; $1,406,589 - 2022)	1,458,665	1,494,514
Loans held for sale (LHFS)	181,094	135,226
Loans held for investment (LHFI)	12,613,967	12,204,039
Less ACL, LHFI	129,298	120,214
Net LHFI	12,484,669	12,083,825
Premises and equipment, net	227,630	212,365
Mortgage servicing rights (MSR)	134,350	129,677
Goodwill	384,237	384,237
Identifiable intangible assets, net	3,222	3,640
Other real estate, net	1,137	1,986
Operating lease right-of-use assets	38,179	36,301
Other assets	805,508	770,838
Total Assets	18,422,626	18,015,478
Deposits:
Noninterest-bearing	3,461,073	4,093,771
Interest-bearing	11,452,827	10,343,877
Total deposits	14,913,900	14,437,648
Federal funds purchased and securities sold under repurchase agreements	311,179	449,331
Other borrowings	1,056,714	1,050,938
Subordinated notes	123,372	123,262
Junior subordinated debt securities	61,856	61,856
ACL on off-balance sheet credit exposures	34,841	36,838
Operating lease liabilities	40,845	38,932
Other liabilities	308,726	324,405
Total Liabilities	16,851,433	16,523,210
Shareholders' Equity
Authorized: 250,000,000 shares Issued and outstanding: 61,069,036 shares - 2023; 60,977,686 shares - 2022	12,724	12,705
Capital surplus	156,834	154,645
Retained earnings	1,667,339	1,600,321
Accumulated other comprehensive income (loss), net of tax	(265,704)	(275,403)
Total Shareholders' Equity	1,571,193	1,492,268
Total Liabilities and Shareholders' Equity	$ 18,422,626	$ 18,015,478