CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
ASSETS
Cash and due from banks	$ 143,071	$ 168,723
Interest bearing deposits with the Federal Reserve Bank and other banks and other short-term investments	123,275	27,280
Cash and cash equivalents	266,346	196,003
Time deposits in other financial institutions	6,297	9,820
Securities:
Available for sale, at fair value (cost of $2,080,514 at March 31, 2018, and $2,248,181 at December 31, 2017)	2,027,665	2,216,753
Held to maturity, at cost (fair value of $258,638 at March 31, 2018, and $265,494 at December 31, 2017)	249,766	253,550
Other investments, at cost	22,982	22,563
Loans held for sale	24,376	44,560
Loans receivable:
Held to maturity	6,746,015	6,391,464
Allowance for loan and lease losses	(58,656)	(55,686)
Loans receivable, net	6,687,359	6,335,778
Premises, furniture and equipment, net	171,385	172,324
Premises, furniture and equipment held for sale	1,477	1,977
Other real estate, net	11,801	10,777
Goodwill	270,305	236,615
Core deposit intangibles and customer relationship intangibles, net	41,063	35,203
Servicing rights, net	25,471	25,857
Cash surrender value on life insurance	143,444	142,818
Other assets	106,126	106,141
TOTAL ASSETS	10,055,863	9,810,739
Deposits:
Demand	3,094,457	2,983,128
Savings	4,536,106	4,240,328
Time	910,977	923,453
Total deposits	8,541,540	8,146,909
Short-term borrowings	131,240	324,691
Other borrowings	276,118	285,011
Accrued expenses and other liabilities	55,460	62,671
TOTAL LIABILITIES	9,004,358	8,819,282
STOCKHOLDERS' EQUITY:
Common stock (par value $1 per share; 40,000,000 shares authorized at both March 31, 2018, and December 31, 2017; issued 31,068,239 shares at March 31, 2018, and 29,953,356 shares at December 31, 2017)	31,068	29,953
Capital surplus	557,990	503,709
Retained earnings	500,959	481,331
Accumulated other comprehensive loss	(39,450)	(24,474)
Treasury stock at cost (0 shares at both March 31, 2018, and December 31, 2017)	0	0
TOTAL STOCKHOLDERS' EQUITY	1,051,505	991,457
TOTAL LIABILITIES AND EQUITY	10,055,863	9,810,739
Preferred Stock
STOCKHOLDERS' EQUITY:
Preferred stock	0	0
Series A Junior Participating Preferred Stock
STOCKHOLDERS' EQUITY:
Preferred stock	0	0
Series C Senior Non-Cumulative Perpetual Preferred Stock
STOCKHOLDERS' EQUITY:
Preferred stock	0	0
Series D Senior Non-Cumulative Perpetual Preferred Stock
STOCKHOLDERS' EQUITY:
Preferred stock	$ 938	$ 938