Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Interest Income
Loans	$ 75,522	$ 68,713	$ 224,739	$ 192,892
Investment securities	7,723	7,465	23,839	23,489
Other short-term investments	1,047	684	2,739	2,174
Total interest income	84,292	76,862	251,317	218,555
Interest Expense
Deposits	2,329	2,806	7,256	7,914
Borrowed funds	928	9	1,064	561
Senior and subordinated debt	3,133	3,016	9,411	9,047
Total interest expense	6,390	5,831	17,731	17,522
Net interest income	77,902	71,031	233,586	201,033
Provision for loan and covered loan losses	4,100	10,727	16,652	17,509
Net interest income after provision for loan and covered loan losses	73,802	60,304	216,934	183,524
Noninterest Income
Service charges on deposit accounts	10,519	9,902	29,676	26,895
Wealth management fees	7,222	6,721	21,669	19,730
Card-based fees	6,868	6,646	20,223	17,950
Mortgage banking income	1,402	1,125	3,964	3,199
Other service charges, commissions, and fees	7,107	5,266	17,800	13,943
Other income	1,372	923	5,220	3,778
Net securities gains	524	2,570	1,551	8,160
Gains on sales of properties	0	3,954	0	3,954
Loss on early extinguishment of debt	0	0	0	(2,059)
Total noninterest income	35,014	37,107	100,103	95,550
Noninterest Expense
Salaries and employee benefits	41,361	35,471	122,371	103,523
Net occupancy and equipment expense	9,406	8,639	29,464	25,702
Professional services	6,172	5,692	16,603	16,772
Technology and related costs	3,673	3,253	10,887	9,431
Net OREO expense	1,290	1,406	4,355	4,531
Other expenses	12,463	12,104	36,793	34,461
Acquisition and integration related expenses	0	3,748	0	4,578
Total noninterest expense	74,365	70,313	220,473	198,998
Income before income tax expense	34,451	27,098	96,564	80,076
Income tax expense	11,167	8,549	30,824	25,363
Net income	$ 23,284	$ 18,549	$ 65,740	$ 54,713
Per Common Share Data
Basic earnings per common share (in Dollars per share)	$ 0.30	$ 0.25	$ 0.84	$ 0.73
Diluted earnings per common share (in Dollars per share)	0.30	0.25	0.84	0.73
Dividends declared per common share (in Dollars per share)	$ 0.09	$ 0.08	$ 0.27	$ 0.23
Weighted-average common shares outstanding (in Shares)	77,106	74,341	77,038	74,270
Weighted-average diluted common shares outstanding (in Shares)	77,119	74,352	77,051	74,282