Consolidated Statements of Income (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:
Loans and loans held for sale	$ 172,517	$ 178,535	$ 343,030	$ 277,206
Investment securities:
Taxable	32,253	29,138	64,275	48,377
Tax-exempt	5,555	6,098	10,895	10,143
Total investment securities interest	37,808	35,236	75,170	58,520
Total interest income	210,325	213,771	418,200	335,726
Undistributed Earnings Allocated to Participating Securities	489	383	926	813
Interest expense:
Interest bearing	745	656	1,481	974
Savings and money market accounts	5,477	6,469	11,035	11,784
Certificates and other time deposits	3,009	3,374	5,473	5,437
Securities sold under agreements to repurchase	233	329	429	642
Wholesale borrowings	1,391	1,169	2,520	2,019
Long-term debt	3,893	3,743	7,783	5,491
Total interest expense	14,748	15,740	28,721	26,347
Net interest income	195,577	198,031	389,479	309,379
Provision for Loan and Lease Losses	15,253	7,309	29,790	17,256
Net interest income after provision for loan losses	180,324	190,722	359,689	292,123
Noninterest income:
Trust department income	10,070	9,167	19,818	14,907
Service charges on deposits	18,528	20,582	35,176	33,168
Credit card fees	13,455	14,317	25,607	24,540
ATM and other service fees	5,996	4,945	11,816	8,280
Bank owned life insurance income	4,040	3,641	7,622	8,538
Investment services and insurance	3,852	3,429	7,368	5,844
Investment securities gains/(losses), net	80	(2,794)	136	(2,803)
Loan sales and servicing income	4,462	7,985	8,192	15,848
Other operating income	12,077	8,167	24,096	18,510
Total noninterest income	72,560	69,439	139,831	126,832
Noninterest expense:
Salaries, wages, pension and employee benefits	89,465	105,099	178,478	163,005
Net occupancy expense	14,347	13,346	31,361	21,628
Equipment expense	12,267	10,309	24,178	17,659
Stationery, supplies and postage	3,990	3,407	8,097	5,503
Bankcard, loan processing and other costs	11,810	12,417	22,644	20,257
Professional services	4,745	17,144	10,103	22,554
Amortization of intangibles	2,933	2,411	5,869	2,728
FDIC insurance expense	5,533	4,149	11,504	7,675
Other operating expense	22,310	20,606	44,499	34,025
Total noninterest expense	167,400	188,888	336,733	295,034
Income before income tax expense	85,484	71,273	162,787	123,921
Income tax expense	25,965	22,823	49,813	38,125
Net income	59,519	48,450	112,974	85,796
Net income attributable to common shareholders	57,561	46,598	109,110	82,584
Dividends, Preferred Stock	1,469	1,469		2,399
Preferred Stock Dividends, Income Statement Impact			2,938
Net income used in diluted EPS calculation	$ 57,561	$ 46,598	$ 109,110	$ 82,584
Weighted average number of common shares outstanding - basic	165,335	157,863	165,198	133,909
Weighted average number of common shares outstanding - diluted	166,147	158,390	166,052	134,406
Basic earnings per common share	$ 0.35	$ 0.30	$ 0.66	$ 0.62
Diluted earnings per common share	$ 0.35	$ 0.29	$ 0.66	$ 0.61
Dividend per common share	$ 0.16	$ 0.16	$ 0.32	$ 0.32