Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Stock Issued During Period, Value, Acquisitions	$ 0	$ 925,272
Cash Flows, non-cash transaction-Stock issued during period		925,211
Adjustments to Additional Paid in Capital, Warrant Issued	0	3,000
Operating Activities
Net income	112,974	85,796
Adjustments to reconcile net income to net cash provided and used by operating activities:
Provision for loan losses	29,790	17,256
Deferred Income Tax Expense (Benefit)	13,352	(25,502)
Depreciation, Depletion and Amortization	25,450	17,650
Benefit attributable to FDIC loss share	927	7,858
Accretion of acquired loans	(74,126)	(54,264)
Amortization and accretion of investment securities, net
Available for sale	4,137	12,276
Held to maturity	4,236	3,223
(Gains)/losses on sales and calls of available-for-sale investment securities, net	(136)	2,803
Originations of loans held for sale	(153,569)	(309,247)
Proceeds from sales of loans, primarily mortgage loans sold in the secondary markets	147,015	316,750
Gains on sales of loans, net	(3,456)	(6,675)
Amortization of Intangible Assets	5,869	2,728
Share-based Compensation	8,201	6,216
Net decrease (increase) in other assets	4,168	177,984
Net increase in other liabilities	(21,506)	(74,440)
NET CASH PROVIDED BY OPERATING ACTIVITIES	103,326	180,412
Proceeds from sale of investment securities
Available for sale	8,438	2,179,728
Proceeds from Sale of Other Investments	32,487	0
Held to maturity	2,495	897
Proceeds from prepayments, calls, and maturities of investment securities
Available for sale	232,087	427,115
Held to maturity	151,133	73,810
Purchases of investment securities
Available for sale	(411,463)	(711,170)
Held to maturity	(278,407)	(1,263,297)
Other	(142)	(280)
Net (increase)/decrease in loans and leases	(628,735)	241,478
Purchases of premises and equipment	(31,599)	(11,402)
Sales of premises and equipment	24,292	181
Cash Acquired from Acquisition	0	188,948
NET CASH (USED) PROVIDED BY INVESTING ACTIVITIES	(899,414)	1,126,008
Financing Activities
Net increase in demand accounts	68,199	131,262
Net (decrease)/increase in savings and money market accounts	(111,071)	110,152
Net decrease in certificates and other time deposits	(192,333)	(157,872)
Net increase/(decrease) in securities sold under agreements to repurchase	367,320	(374,659)
Proceeds from issuance of subordinated debt	0	249,924
Net increase/(decrease) in wholesale borrowings	448,421	(654,866)
Net proceeds from issuance of Preferred Stock	0	96,550
Cash dividends - common	(52,640)	(43,717)
Cash dividends - preferred	(2,938)	(2,399)
Restricted stock activity	(4,122)	(9,319)
NET CASH PROVIDED (USED) BY FINANCING ACTIVITIES	520,836	(654,944)
(Decrease)/Increase in cash and cash equivalents	(275,252)	651,476
Cash and cash equivalents at beginning of year	917,822	258,014
Cash and cash equivalents at end of year	642,570	909,490
Cash paid during period for:
Interest expense	28,732	20,779
Federal income taxes	$ 11,547	$ 27,662