Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Interest income:
Loans and loans held for sale	$ 170,648	$ 182,107	$ 513,678	$ 459,313
Investment securities:
Taxable	32,072	29,766	96,347	78,143
Tax-exempt	5,477	5,624	16,372	15,767
Total investment securities interest	37,549	35,390	112,719	93,910
Total interest income	208,197	217,497	626,397	553,223
Deposits:
Interest bearing	755	809	2,236	1,784
Savings and money market accounts	5,570	6,495	16,605	18,279
Certificates and other time deposits	2,846	1,712	8,319	7,149
Securities sold under agreements to repurchase	268	306	697	949
Wholesale borrowings	1,397	936	3,917	2,955
Long-term debt	3,783	3,899	11,566	9,390
Total interest expense	14,619	14,157	43,340	40,506
Net interest income	193,578	203,340	583,057	512,717
Provision for Loan and Lease Losses	9,192	6,379	38,982	23,634
Net interest income after provision for loan losses	184,386	196,961	544,075	489,083
Noninterest income:
Trust department income	10,300	9,608	30,118	24,515
Service charges on deposits	18,684	22,146	53,860	55,315
Credit card fees	13,754	13,588	39,361	38,128
ATM and other service fees	6,182	5,216	17,998	13,496
Bank owned life insurance income	4,218	4,351	11,840	12,889
Investment services and insurance	3,606	3,403	10,974	9,247
Investment securities gains/(losses), net	14	0	150	(2,803)
Loan sales and servicing income	4,740	3,644	12,932	19,492
Other operating income	8,235	9,134	32,331	27,644
Total noninterest income	69,733	71,090	209,564	197,923
Noninterest expense:
Salaries, wages, pension and employee benefits	90,593	97,390	269,071	260,395
Net occupancy expense	13,887	13,816	45,248	35,444
Equipment expense	12,188	11,040	36,366	28,698
Stationery, supplies and postage	3,723	3,801	11,820	9,304
Bankcard, loan processing and other costs	11,151	40,786	33,795	61,043
Professional services	5,270	9,768	15,373	32,322
Amortization of intangibles	2,933	2,972	8,802	5,700
FDIC insurance expense	2,988	4,925	14,492	12,601
Other operating expense	20,412	26,101	64,911	60,126
Total noninterest expense	163,145	210,599	499,878	505,633
Income before income tax expense	90,974	57,452	253,761	181,373
Income tax expense	27,076	16,737	76,889	54,863
Net income	63,898	40,715	176,872	126,510
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic	519	310	1,433	1,102
Preferred Stock Dividends, Income Statement Impact	1,469	1,469	4,407	3,868
Net income attributable to common shareholders	61,910	38,936	171,032	121,540
Net income used in diluted EPS calculation	$ 61,910	$ 38,936	$ 171,032	$ 121,540
Weighted average number of common shares outstanding - basic	165,389	165,044	165,263	144,402
Weighted average number of common shares outstanding - diluted	165,804	165,874	165,916	147,392
Basic earnings per common share	$ 0.37	$ 0.24	$ 1.03	$ 0.84
Diluted earnings per common share	$ 0.37	$ 0.23	$ 1.03	$ 0.82
Dividend per common share	$ 0.16	$ 0.16	$ 0.48	$ 0.48