Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
ASSETS
Cash and due from banks	$ 168,723	$ 151,290
Interest bearing deposits with the Federal Reserve Bank and other banks and other short-term investments	27,280	7,434
Cash and cash equivalents	196,003	158,724
Time deposits in other financial institutions	9,820	2,105
Securities:
Available for sale, at fair value (cost of $2,248,181 at December 31, 2017, and cost of $1,893,947 at December 31, 2016)	2,216,753	1,845,864
Held to maturity, at cost (fair value of $265,494 at December 31, 2017, and $274,799 at December 31, 2016)	253,550	263,662
Other investments, at cost	22,563	21,560
Loans held for sale	44,560	61,261
Loans receivable:
Held to maturity	6,391,464	5,351,719
Allowance for loan losses	(55,686)	(54,324)
Loans receivable, net	6,335,778	5,297,395
Premises, furniture and equipment, net	172,324	163,614
Premises, furniture and equipment held for sale	1,977	414
Other real estate, net	10,777	9,744
Goodwill	236,615	127,699
Core deposit intangibles and customer relationship intangibles, net	35,203	22,775
Servicing rights, net	25,857	35,778
Cash surrender value on life insurance	142,818	112,615
Other assets	106,141	123,869
TOTAL ASSETS	9,810,739	8,247,079
Deposits:
Demand	2,983,128	2,202,036
Savings	4,240,328	3,788,089
Time	923,453	857,286
Total deposits	8,146,909	6,847,411
Short-term borrowings	324,691	306,459
Other borrowings	285,011	288,534
Accrued expenses and other liabilities	62,671	63,759
TOTAL LIABILITIES	8,819,282	7,506,163
STOCKHOLDERS' EQUITY:
Common stock (par value $1 per share; 40,000,000 shares authorized at December 31, 2017, and 30,000,000 shares authorized at December 31, 2016; issued 29,953,356 shares at December 31, 2017, and 26,119,929 shares at December 31, 2016)	29,953	26,120
Capital surplus	503,709	328,376
Retained earnings	481,331	416,109
Accumulated other comprehensive loss	(24,474)	(31,046)
Treasury stock at cost (0 shares at both December 31, 2017, and December 31, 2016)	0	0
TOTAL STOCKHOLDERS' EQUITY	991,457	740,916
TOTAL LIABILITIES AND EQUITY	9,810,739	8,247,079
Preferred Stock
STOCKHOLDERS' EQUITY:
Preferred stock	0	0
Series A Preferred Stock
STOCKHOLDERS' EQUITY:
Preferred stock	0	0
Series C Preferred Stock
STOCKHOLDERS' EQUITY:
Preferred stock	0	0
Series D Preferred Stock
STOCKHOLDERS' EQUITY:
Preferred stock	$ 938	$ 1,357