Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Assets
Cash and due from banks (noninterest-bearing)	$ 454,047	$ 349,561
Federal funds sold and securities purchased under reverse repurchase agreements		830
Securities available for sale (at fair value)	1,723,445	1,811,813
Securities held to maturity (fair value: $874,858-2019; $889,733-2018)	884,319	909,643
Loans held for sale (LHFS)	172,683	153,799
Loans held for investment (LHFI)	8,995,014	8,835,868
Less allowance for loan losses, LHFI	79,005	79,290
Net LHFI	8,916,009	8,756,578
Acquired loans	93,201	106,932
Less allowance for loan losses, acquired loans	1,297	1,231
Net acquired loans	91,904	105,701
Net LHFI and acquired loans	9,007,913	8,862,279
Premises and equipment, net	189,743	178,668
Mortgage servicing rights	86,842	95,596
Goodwill	379,627	379,627
Identifiable intangible assets, net	10,092	11,112
Other real estate	32,139	34,668
Operating lease right-of-use assets	33,861
Other assets	503,306	498,864
Total Assets	13,478,017	13,286,460
Deposits:
Noninterest-bearing	2,867,778	2,937,594
Interest-bearing	8,667,037	8,426,817
Total deposits	11,534,815	11,364,411
Federal funds purchased and securities sold under repurchase agreements	46,867	50,471
Other borrowings	83,265	79,885
Junior subordinated debt securities	61,856	61,856
Operating lease liabilities	34,921
Other liabilities	129,265	138,384
Total Liabilities	11,890,989	11,695,007
Shareholders' Equity
Authorized: 250,000,000 shares Issued and outstanding: 64,789,943 shares - 2019; 65,834,395 shares - 2018	13,499	13,717
Capital surplus	272,268	309,545
Retained earnings	1,342,176	1,323,870
Accumulated other comprehensive loss, net of tax	(40,915)	(55,679)
Total Shareholders' Equity	1,587,028	1,591,453
Total Liabilities and Shareholders' Equity	$ 13,478,017	$ 13,286,460