Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Assets
Cash and due from banks	$ 115,413	$ 78,036	$ 80,986
Federal funds sold and interest-bearing accounts	239,804	92,323	44,800
Investment securities available for sale, at fair value	862,154	541,805	535,630
Other investments	9,322	10,275	10,971
Mortgage loans held for sale, at fair value	108,829	94,759	81,491
Loans, net of unearned income	2,171,600	1,889,881	1,770,059
Purchased loans not covered by FDIC loss share agreements ("purchased non-covered loans")	808,313	674,239	702,131
Purchased loan pools not covered by FDIC loss share agreements ("purchased loan pools")	268,984	0	0
Purchased loans covered by FDIC loss share agreements ("covered loans")	209,598	271,279	331,250
Less: allowance for loan losses related to non-purchased loans	(21,658)	(21,157)	(22,254)
Loans, net	3,436,837	2,814,242	2,781,186
Other real estate owned, net	22,567	33,160	35,373
Purchased, non-covered other real estate owned, net	13,112	15,585	16,598
Covered other real estate owned, net	12,626	19,907	38,426
Total other real estate owned, net	48,305	68,652	90,397
Premises and equipment, net	124,916	97,251	99,495
FDIC loss-share receivable	14,957	31,351	49,180
Other intangible assets, net	19,189	8,221	9,812
Goodwill	87,367	63,547	58,903
Cash value of bank owned life insurance	59,552	58,867	57,864
Other assets	79,089	77,748	72,420
Total assets	5,205,734	4,037,077	3,973,135
Liabilities
Noninterest-bearing	1,280,174	839,377	790,798
Interest-bearing	3,231,373	2,591,772	2,598,237
Total deposits	4,511,547	3,431,149	3,389,035
Securities sold under agreements to repurchase	75,066	73,310	51,109
Other borrowings	39,000	78,881	100,293
Other liabilities	24,026	22,384	24,457
Subordinated deferrable interest debentures	69,325	65,325	64,842
Total liabilities	$ 4,718,964	$ 3,671,049	$ 3,629,736
Stockholders' Equity
Preferred stock, stated value $1,000; 5,000,000 shares authorized; 0 shares issued and outstanding
Common stock, par value $1; 100,000,000 shares authorized; 33,608,866; 28,159,027 and 28,155,317 issued	$ 33,609	$ 28,159	$ 28,155
Capital surplus	336,212	225,015	223,888
Retained earnings	126,265	118,412	98,847
Accumulated other comprehensive income	3,072	6,098	4,123
Treasury stock, at cost, 1,413,777; 1,385,164 and 1,383,496 shares	(12,388)	(11,656)	(11,614)
Total stockholders' equity	486,770	366,028	343,399
Total liabilities and stockholders' equity	$ 5,205,734	$ 4,037,077	$ 3,973,135