Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Interest Income
Interest and fees on LHFI & LHFS	$ 66,343	$ 64,706	$ 129,417	$ 129,169
Interest and fees on acquired loans	23,250	20,987	40,036	33,769
Interest on securities:
Taxable	19,522	18,547	38,742	35,086
Tax exempt	1,243	1,283	2,491	2,595
Interest on federal funds sold and securities purchased under reverse repurchase agreements	6	5	11	9
Other interest income	379	372	754	727
Total Interest Income	110,743	105,900	211,451	201,355
Interest Expense
Interest on deposits	3,970	5,071	8,335	9,980
Interest on federal funds purchased and securities sold under repurchase agreements	110	88	186	169
Other interest expense	1,375	1,513	2,738	3,003
Total Interest Expense	5,455	6,672	11,259	13,152
Net Interest Income	105,288	99,228	200,192	188,203
Provision for loan losses, LHFI	351	(4,846)	(454)	(7,814)
Provision for loan losses, acquired loans	3,784	(1,552)	3,847	(1,422)
Net Interest Income After Provision for Loan Losses	101,153	105,626	196,799	197,439
Noninterest Income
Service charges on deposit accounts	11,846	12,929	23,414	24,610
Bank card and other fees	9,894	9,507	18,975	17,452
Mortgage banking, net	6,191	8,295	13,020	19,878
Insurance commissions	8,300	8,014	16,397	15,256
Wealth management	7,710	6,940	15,845	13,815
Other, net	199	(2,145)	178	(3,336)
Securities gains, net	0	174	389	378
Total Noninterest Income	44,140	43,714	88,218	88,053
Noninterest Expense
Salaries and employee benefits	56,134	55,405	112,860	108,997
Services and fees	14,543	12,816	27,708	25,848
Net occupancy - premises	6,413	6,703	13,019	12,658
Equipment expense	6,136	6,193	12,274	11,867
ORE/Foreclosure expense	3,836	5,131	7,151	8,951
FDIC assessment expense	2,468	2,376	4,884	4,397
Other expense	13,231	18,571	26,483	36,622
Total Noninterest Expense	102,761	107,195	204,379	209,340
Income Before Income Taxes	42,532	42,145	80,638	76,152
Income taxes	9,635	11,024	18,738	20,165
Net Income	$ 32,897	$ 31,121	$ 61,900	$ 55,987
Earnings Per Share
Basic (in dollars per share)	$ 0.49	$ 0.46	$ 0.92	$ 0.84
Diluted (in dollars per share)	$ 0.49	$ 0.46	$ 0.92	$ 0.84
Dividends Per Share (in dollars per share)	$ 0.23	$ 0.23	$ 0.46	$ 0.46