Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Interest Income
Loans	$ 86,526	$ 75,820	$ 164,981	$ 149,217
Investment securities	9,363	7,823	17,921	16,116
Other short-term investments	661	913	1,196	1,692
Total interest income	96,550	84,556	184,098	167,025
Interest Expense
Deposits	2,482	2,402	4,867	4,927
Borrowed funds	1,499	118	2,815	136
Senior and subordinated debt	2,588	3,134	5,721	6,278
Total interest expense	6,569	5,654	13,403	11,341
Net interest income	89,981	78,902	170,695	155,684
Provision for loan losses	8,085	6,000	15,678	12,552
Net interest income after provision for loan losses	81,896	72,902	155,017	143,132
Noninterest Income
Service charges on deposit accounts	10,169	9,886	19,642	19,157
Wealth management fees	8,642	7,433	16,201	14,447
Card-based fees	7,592	6,953	14,310	13,355
Mortgage banking income	1,863	1,439	3,231	2,562
Other service charges, commissions, and fees	7,668	5,862	16,144	10,693
Net securities gains	23	515	910	1,027
Other income	1,865	1,900	3,310	3,848
Total noninterest income	37,822	33,988	73,748	65,089
Noninterest Expense
Salaries and employee benefits	46,267	40,294	90,861	81,010
Net occupancy and equipment expense	9,928	9,622	19,625	20,058
Professional services	5,292	5,322	11,212	10,431
Technology and related costs	3,669	3,527	7,370	7,214
Net OREO expense	1,122	1,861	1,786	3,065
Other expenses	14,458	12,825	27,451	24,330
Acquisition and integration related expenses	618	0	5,638	0
Total noninterest expense	81,354	73,451	163,943	146,108
Income before income tax expense	38,364	33,439	64,822	62,113
Income tax expense	13,097	10,865	21,593	19,657
Net income	$ 25,267	$ 22,574	$ 43,229	$ 42,456
Per Common Share Data
Basic earnings per common share (in Dollars per share)	$ 0.31	$ 0.29	$ 0.54	$ 0.55
Diluted earnings per common share (in Dollars per share)	0.31	0.29	0.54	0.55
Dividends declared per common share (in Dollars per share)	$ 0.09	$ 0.09	$ 0.18	$ 0.18
Weighted-average common shares outstanding (in Shares)	80,383	77,089	79,182	77,004
Weighted-average diluted common shares outstanding (in Shares)	80,396	77,101	79,194	77,016