Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
ASSETS
Cash and due from banks	$ 180,751	$ 151,290
Interest bearing deposits with the Federal Reserve Bank and other banks and other short-term investments	70,985	7,434
Cash and cash equivalents	251,736	158,724
Time deposits in other financial institutions	19,793	2,105
Securities:
Available for sale, at fair value (cost of $2,124,232 at September 30, 2017, and $1,893,947 at December 31, 2016)	2,093,385	1,845,864
Held to maturity, at cost (fair value of $270,386 at September 30, 2017, and $274,799 at December 31, 2016)	256,355	263,662
Other investments, at cost	23,176	21,560
Loans held for sale	35,795	61,261
Loans receivable:
Held to maturity	6,373,415	5,351,719
Allowance for loan losses	(54,885)	(54,324)
Loans receivable, net	6,318,530	5,297,395
Premises, furniture and equipment, net	174,533	163,614
Premises, furniture and equipment held for sale	4,428	414
Other real estate, net	13,226	9,744
Goodwill	236,615	127,699
Core deposit intangibles and customer relationship intangibles, net	37,028	22,775
Servicing rights, net	26,599	35,778
Cash surrender value on life insurance	142,073	112,615
Other assets	122,355	123,869
TOTAL ASSETS	9,755,627	8,247,079
Deposits:
Demand	3,009,940	2,202,036
Savings	4,227,340	3,788,089
Time	994,604	857,286
Total deposits	8,231,884	6,847,411
Short-term borrowings	171,871	306,459
Other borrowings	301,473	288,534
Accrued expenses and other liabilities	68,715	63,759
TOTAL LIABILITIES	8,773,943	7,506,163
STOCKHOLDERS' EQUITY:
Common stock (par value $1 per share; 40,000,000 shares authorized at September 30, 2017, and 30,000,000 shares authorized at December 31, 2016; issued 29,946,069 shares at September 30, 2017, and 26,119,929 shares at December 31, 2016)	29,946	26,120
Capital surplus	503,262	328,376
Retained earnings	468,556	416,109
Accumulated other comprehensive loss	(21,018)	(31,046)
Treasury stock at cost (0 shares at both September 30, 2017, and December 31, 2016)	0	0
TOTAL STOCKHOLDERS' EQUITY	981,684	740,916
TOTAL LIABILITIES AND EQUITY	9,755,627	8,247,079
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	$ 1,357