Condensed Consolidated Statements Of Income (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Interest income:
Loans, including fees	$ 166,300	$ 69,169	$ 328,892	$ 214,822
Securities - taxable	29,004	14,545	61,021	47,317
Securities - tax exempt	1,758	1,302	4,344	3,957
Federal funds sold	5		7	28
Other investments	628	382	1,441	1,393
Total interest income	197,695	85,398	395,705	267,517
Interest expense:
Deposits	15,138	16,147	42,717	58,831
Federal funds purchased and securities sold under agreements to repurchase	1,902	2,406	5,346	7,293
Long-term notes and other interest expense	3,613	23	4,778	120
Total interest expense	20,653	18,576	52,841	66,244
Net interest income	177,042	66,822	342,864	201,273
Provision for loan losses, net	9,254	16,258	27,220	54,601
Net interest income after provision for loan losses	167,788	50,564	315,644	146,672
Noninterest income:
Service charges on deposit accounts	16,858	11,332	38,745	35,148
Other service charges, commissions and fees	31,404	16,869	70,473	49,012
Securities gain/(loss), net	16		(71)
Other income	16,673	7,007	36,616	17,722
Total noninterest income	64,951	35,208	145,763	101,882
Noninterest expense:
Salaries and employee benefits	94,844	35,890	190,214	106,036
Net occupancy expense	14,029	5,657	28,700	17,827
Equipment rentals, depreciation and maintenance	5,362	2,496	11,877	7,863
Amortization of intangibles	7,097	656	9,332	2,078
Professional services expense	19,915	3,698	48,061	11,703
Other expense	52,772	19,663	100,220	62,495
Total noninterest expense	194,019	68,060	388,404	208,002
Net income before income taxes	38,720	17,712	73,003	40,552
Income tax expense	8,342	2,859	15,210	5,365
Net income	$ 30,378	$ 14,853	$ 57,793	$ 35,187
Basic earnings per share	$ 0.36	$ 0.40	$ 0.97	$ 0.95
Diluted earnings per share	$ 0.36	$ 0.40	$ 0.97	$ 0.94
Dividends paid per share	$ 0.24	$ 0.24	$ 0.72	$ 0.72
Weighted avg. shares outstanding-basic	84,699	36,880	59,149	36,864
Weighted avg. shares outstanding-diluted	84,985	36,995	59,442	37,052