Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Interest Income
Interest and fees on LHFI & LHFS	$ 65,403	$ 69,656	$ 194,572	$ 212,783
Interest and fees on acquired loans	19,183	5,229	52,952	13,263
Interest on securities:
Taxable	18,654	15,909	53,740	51,645
Tax exempt	1,274	1,358	3,869	4,080
Interest on federal funds sold and securities purchased under reverse repurchase agreements	8	6	17	17
Other interest income	372	339	1,099	1,005
Total Interest Income	104,894	92,497	306,249	282,793
Interest Expense
Interest on deposits	4,970	5,725	14,950	19,543
Interest on federal funds purchased and securities sold under repurchase agreements	106	135	275	448
Other interest expense	1,389	1,358	4,392	4,131
Total Interest Expense	6,465	7,218	19,617	24,122
Net Interest Income	98,429	85,279	286,632	258,671
Provision for loan losses, LHFI	(3,624)	3,358	(11,438)	7,301
Provision for loan losses, acquired loans	3,292	2,105	1,870	3,583
Net Interest Income After Provision for Loan Losses	98,761	79,816	296,200	247,787
Noninterest Income
Service charges on deposit accounts	13,852	13,135	38,462	37,960
Bank card and other fees	8,929	6,924	26,381	22,467
Mortgage banking, net	8,440	11,150	28,318	29,629
Insurance commissions	8,227	7,533	23,483	21,318
Wealth management	7,520	5,612	21,335	16,875
Other, net	165	512	(3,171)	3,120
Security gains (losses), net	0	(1)	378	1,041
Total Noninterest Income	47,133	44,865	135,186	132,410
Noninterest Expense
Salaries and employee benefits	56,043	47,404	165,040	140,795
Services and fees	13,580	11,682	39,428	34,179
Net occupancy - premises	6,644	5,352	19,302	15,244
Equipment expense	6,271	5,095	18,138	15,190
ORE/Foreclosure expense	3,079	1,702	12,030	7,992
FDIC assessment expense	2,376	1,826	6,773	5,427
Other expense	13,531	10,399	50,153	38,366
Total Noninterest Expense	101,524	83,460	310,864	257,193
Income Before Income Taxes	44,370	41,221	120,522	123,004
Income taxes	11,336	11,317	31,501	33,431
Net Income	$ 33,034	$ 29,904	$ 89,021	$ 89,573
Earnings Per Common Share
Basic (in dollars per share)	$ 0.49	$ 0.46	$ 1.33	$ 1.39
Diluted (in dollars per share)	$ 0.49	$ 0.46	$ 1.33	$ 1.38
Dividends Per Common Share (in dollars per share)	$ 0.23	$ 0.23	$ 0.69	$ 0.69