Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Operating Activities
Net income	$ 126,510	$ 95,882
Adjustments to reconcile net income to net cash provided and used by operating activities:
Provision for loan losses	23,634	42,436
Benefit for deferred income taxes	(16,824)	(13,619)
Depreciation and amortization	22,404	17,307
Benefit attributable to FDIC loss share	(8,890)	(12,601)
Accretion of acquired loans	(199,815)	(62,191)
Accretion of income for lease financing	(2,674)	(2,168)
Amortization and accretion of investment securities, net
Available for sale	15,141	11,352
Held to maturity	5,454	1,239
Losses/(gains) on sales and calls of available-for-sale investment securities, net	2,803	(1,361)
Originations of loans held for sale	(462,948)	(575,972)
Proceeds from sales of loans, primarily mortgage loans sold in the secondary markets	479,623	596,412
Gains on sales of loans, net	(10,805)	(7,903)
Amortization of Intangible Assets	5,700	1,422
Recognition of stock compensation expense	8,747	7,258
Net decrease in other assets	133,958	35,048
Net decrease in other liabilities	16,516	(34,202)
NET CASH PROVIDED BY OPERATING ACTIVITIES	156,314	123,541
Proceeds from sale of investment securities
Available for sale	2,179,728	190,813
Held to maturity	897	0
Proceeds from prepayments, calls, and maturities of investment securities
Available for sale	579,023	611,382
Held to maturity	151,626	42,409
Purchases of investment securities
Available for sale	(847,968)	(878,624)
Held to maturity	(1,559,733)	(98,893)
Other	(3,097)	(42)
Net (increase)/decrease in loans and leases, excluding loans acquired	272,168	(241,290)
Purchases of premises and equipment	(27,237)	(6,401)
Sales of premises and equipment	181	0
Cash received for acquisition, net of cash paid	189,009
Cash Acquired from Acquisition	0
NET CASH (USED) PROVIDED BY INVESTING ACTIVITIES	934,597	(380,646)
Financing Activities
Net increase in demand accounts	626,602	218,292
Net increase in savings and money market accounts	164,638	148,694
Net decrease in certificates and other time deposits	(337,887)	(266,169)
Net (decrease) increase in securities sold under agreements to repurchase	(169,729)	97,190
Proceeds from issuance of subordinated debt	249,927	0
Net decrease in wholesale borrowings	(655,345)	(25,379)
Net proceeds from issuance of preferred stock	96,550	0
Cash dividends - common	(69,938)	(52,084)
Cash dividends - preferred	(3,868)	0
Restricted stock activity	(2,608)	(2,341)
NET CASH (USED) PROVIDED BY FINANCING ACTIVITIES	(101,658)	118,203
Increase (decrease) in cash and cash equivalents	989,253	(138,902)
Cash and cash equivalents at beginning of year	258,014	377,319
Cash and cash equivalents at end of year	1,247,267	238,417
SUPPLEMENTAL DISCLOSURES
Consideration from Common Stock conversion (1.37 ratio)	925,272	0
Consideration from the warrant issued to the Treasury for Citizens' TARP warrant	3,000	0
Cash paid during period for:
Interest, net of amounts capitalized	31,578	27,462
Federal income taxes	27,662	43,421
Warrant
SUPPLEMENTAL DISCLOSURES
Consideration from the warrant issued to the Treasury for Citizens' TARP warrant	$ 3,000