Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Assets
Cash and due from banks	$ 358,916	$ 349,561
Federal funds sold and securities purchased under reverse repurchase agreements		830
Securities available for sale (at fair value)	1,602,404	1,811,813
Securities held to maturity (fair value: $746,202-2019; $889,733-2018)	738,099	909,643
Loans held for sale (LHFS)	226,347	153,799
Loans held for investment (LHFI)	9,335,628	8,835,868
Less allowance for loan losses, LHFI	84,277	79,290
Net LHFI	9,251,351	8,756,578
Acquired loans	72,601	106,932
Less allowance for loan losses, acquired loans	815	1,231
Net acquired loans	71,786	105,701
Net LHFI and acquired loans	9,323,137	8,862,279
Premises and equipment, net	189,791	178,668
Mortgage servicing rights	79,394	95,596
Goodwill	379,627	379,627
Identifiable intangible assets, net	7,343	11,112
Other real estate	29,248	34,668
Operating lease right-of-use assets	31,182
Other assets	532,389	498,864
Total Assets	13,497,877	13,286,460
Deposits:
Noninterest-bearing	2,891,215	2,937,594
Interest-bearing	8,354,342	8,426,817
Total deposits	11,245,557	11,364,411
Federal funds purchased and securities sold under repurchase agreements	256,020	50,471
Other borrowings	85,396	79,885
Junior subordinated debt securities	61,856	61,856
Operating lease liabilities	32,354
Other liabilities	155,992	138,384
Total Liabilities	11,837,175	11,695,007
Shareholders' Equity
Common stock, no par value: Authorized: 250,000,000 shares Issued and outstanding: 64,200,111 shares - 2019; 65,834,395 shares - 2018	13,376	13,717
Capital surplus	256,400	309,545
Retained earnings	1,414,526	1,323,870
Accumulated other comprehensive loss, net of tax	(23,600)	(55,679)
Total Shareholders' Equity	1,660,702	1,591,453
Total Liabilities and Shareholders' Equity	$ 13,497,877	$ 13,286,460