CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Assets
Cash and due from banks	$ 123,270	$ 118,518	$ 114,396
Federal funds sold and interest-bearing accounts	90,801	272,045	120,925
Investment securities available for sale, at fair value	838,124	783,185	811,385
Other investments	24,578	9,323	9,322
Mortgage loans held for sale, at fair value	126,263	111,182	111,807
Loans, net of unearned income	3,091,039	2,406,877	2,290,649
Purchased loans not covered by FDIC loss-share agreements ("purchased non-covered loans")	1,067,090	771,554	767,494
Purchased loan pools not covered by FDIC loss-share agreements ("purchased loan pools")	624,886	592,963	410,072
Purchased loans covered by FDIC loss-share agreements ("covered loans")	62,291	137,529	191,021
Less: allowance for loan losses	(22,963)	(21,062)	(22,471)
Loans, net	4,822,343	3,887,861	3,636,765
Other real estate owned, net	10,392	16,147	20,730
Purchased, non-covered other real estate owned, net	14,126	14,333	11,538
Covered other real estate owned, net	1,000	5,011	12,203
Total other real estate owned, net	25,518	35,491	44,471
Premises and equipment, net	122,191	121,639	124,756
FDIC loss-share receivable, net	0	6,301	4,506
Other intangible assets, net	18,472	17,058	18,218
Goodwill	122,545	90,082	87,701
Cash value of bank owned life insurance	77,637	64,251	59,894
Other assets	101,753	72,004	72,154
Total assets	6,493,495	5,588,940	5,216,300
Liabilities
Noninterest-bearing	1,563,316	1,329,857	1,275,800
Interest-bearing	3,742,782	3,549,433	3,254,723
Total deposits	5,306,098	4,879,290	4,530,523
Securities sold under agreements to repurchase	42,647	63,585	51,506
FDIC loss-share payable, net	7,775	0	0
Other borrowings	373,461	39,000	39,000
Other liabilities	37,033	22,432	23,371
Subordinated deferrable interest debentures	83,898	69,874	69,600
Total liabilities	5,850,912	5,074,181	4,714,000
Stockholders’ Equity
Preferred stock, stated value $1,000; 5,000,000 shares authorized; 0 shares issued and outstanding	0	0	0
Common stock, par value $1; 100,000,000 shares authorized; 36,347,637; 33,625,162 and 33,609,894 issued	36,348	33,625	33,610
Capital surplus	409,630	337,349	336,599
Retained earnings	199,769	152,820	140,282
Accumulated other comprehensive income	10,449	3,353	4,197
Treasury stock, at cost, 1,456,333; 1,413,777 and 1,413,777 shares	(13,613)	(12,388)	(12,388)
Total stockholders’ equity	642,583	514,759	502,300
Total liabilities and stockholders’ equity	$ 6,493,495	$ 5,588,940	$ 5,216,300