Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Interest income:
Interest and fees on loans	$ 419,981	$ 430,416	$ 1,256,378	$ 1,298,567
Interest on money market investments	6,018	5,483	17,021	15,501
Interest on Securities	30,231	24,377	86,513	76,973
Interest expense:
Interest on deposits	12,542	12,313	36,967	37,188
Interest on short- and long-term borrowings	18,311	31,144	56,518	104,280
Total interest expense	30,853	43,457	93,485	141,468
Net interest income	425,377	416,819	1,266,427	1,249,573
Provision for loan losses	18,262	(54,643)	17,334	(109,669)
Net interest income after provision for loan losses	407,115	471,462	1,249,093	1,359,242
Noninterest income:
Service charges and fees on deposit accounts	43,196	43,468	126,006	126,068
Other service charges, commissions and fees	52,837	51,639	152,028	143,847
Wealth management income	7,496	7,438	23,271	22,495
Loan sales and servicing income	7,728	7,592	23,816	22,020
Capital markets and foreign exchange	6,624	5,400	19,400	16,319
Dividends and other investment income	8,449	11,324	27,164	27,183
Fair value and nonhedge derivative income (loss)	(1,555)	44	(799)	(10,429)
Equity securities gains, net	3,630	440	11,822	3,865
Fixed income securities gains (losses), net	(53)	(13,901)	(138,728)	22,039
Impairment losses on investment securities:
Impairment losses on investment securities	0	$ 0	0	(27)
Less amounts recognized in other comprehensive income	0		0	0
Net impairment losses on investment securities	0	$ 0	0	(27)
Other	2,461	2,627	9,076	5,854
Total noninterest income	130,813	116,071	253,056	379,234
Noninterest expense:
Salaries and employee benefits	242,023	245,518	736,675	717,680
Occupancy, net	29,477	28,495	88,911	85,739
Furniture, equipment and software	30,416	28,524	91,376	84,454
Other real estate expense, net	(40)	875	(111)	2,216
Credit-related expense	6,914	6,508	20,959	20,615
Provision for Unfunded Lending Commitments	(1,428)	16,095	(313)	10,328
Professional and legal services	12,699	16,588	37,292	39,754
Advertising	6,136	6,094	19,622	19,295
FDIC premiums	8,500	8,204	25,228	24,143
Amortization of core deposit and other intangibles	2,298	2,665	6,974	8,283
Debt extinguishment cost	0	44,422	2,395	44,422
Other	56,298	66,738	168,076	206,353
Total noninterest expense	396,149	438,536	1,197,710	1,242,626
Income before income taxes	141,779	148,997	304,439	495,850
Income taxes	40,780	53,109	97,455	179,202
Net income	100,999	95,888	206,984	316,648
Dividends on preferred stock	(16,761)	(16,761)	(48,567)	(56,841)
Net earnings applicable to common shareholders	$ 84,238	$ 79,127	$ 158,417	$ 259,807
Weighted average common shares outstanding during the period:
Basic shares	203,668	196,687	203,057	188,643
Diluted shares	204,155	197,271	203,511	189,260
Net earnings per common share:
Basic	$ 0.41	$ 0.40	$ 0.77	$ 1.36
Diluted	$ 0.41	$ 0.40	$ 0.77	$ 1.36
Interest and Dividend Income, Operating	$ 456,230	$ 460,276	$ 1,359,912	$ 1,391,041