CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net income	$ 65,232	$ 67,351
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	9,886	8,955
Stock-based compensation	3,327	2,701
Provision for credit losses	4,321	13,102
Net amortization of premiums and accretion of discounts on securities and borrowings	13,332	10,420
Amortization of other intangible assets	3,530	4,490
Gains on securities transactions, net	(3,999)	(1,047)
Net impairment losses on securities recognized in earnings		550
Proceeds from sales of loans held for sale	935,834	198,128
Gains on sales of loans, net	(29,426)	(6,307)
Originations of loans held for sale	(846,488)	(196,622)
Gains on sales of assets, net	(410)	(288)
Change in FDIC loss-share receivable (excluding reimbursements)	5,175	7,112
Net change in:
Trading securities	7,987	(101)
Fair value of borrowings carried at fair value	2,406	(520)
Cash surrender value of bank owned life insurance	(2,765)	(3,591)
Accrued interest receivable	(928)	2,781
Other assets	38,758	95,567
Accrued expenses and other liabilities	(27,077)	(41,523)
Net cash provided by operating activities	178,695	161,158
Cash flows from investing activities:
Net loan repayments (originations)	287,940	(461,749)
Loans purchased	(178,486)	(117,255)
Investment securities held to maturity:
Purchases	(436,005)	(135,332)
Maturities, calls and principal repayments	282,888	329,201
Investment securities available for sale:
Purchases	(283,736)	(49,012)
Sales	4,309	58,585
Maturities, calls and principal repayments	104,679	133,496
Death benefit proceeds from bank owned life insurance	628	1,689
Proceeds from sales of real estate property and equipment	6,574	4,139
Purchases of real estate property and equipment	(6,828)	(8,407)
(Payments to) reimbursements from the FDIC	(865)	7,537
Cash and cash equivalents acquired in acquisition		117,587
Net cash used in investing activities	(218,902)	(119,521)
Cash flows from financing activities:
Net change in deposits	(21,396)	(181,716)
Net change in short-term borrowings	(29,263)	281,273
Repayments of long-term borrowings	(1,000)	(1,000)
Redemption of junior subordinated debentures		(10,000)
Dividends paid to common shareholders	(64,492)	(61,730)
Common stock issued, net	3,583	4,207
Net cash (used in) provided by financing activities	(112,568)	31,034
Net change in cash and cash equivalents	(152,775)	72,671
Cash and cash equivalents at beginning of year	853,100	379,049
Cash and cash equivalents at end of period	700,325	451,720
Supplemental disclosures of cash flow information:
Interest on deposits and borrowings	84,640	91,592
Federal and state income taxes	6,614	35,061
Supplemental schedule of non-cash investing activities:
Transfer of loans to other real estate owned	13,384	9,195
Non-cash assets acquired:
Investment securities available for sale		275,650
Loans		1,088,421
Premises and equipment, net		9,457
Accrued interest receivable		5,294
Goodwill		109,758
Other intangible assets, net		8,050
Other assets		72,137
Total non-cash assets acquired		1,568,767
Liabilities assumed:
Deposits		1,380,293
Short-term borrowings		29,000
Junior subordinated debentures issued to capital trusts		15,645
Other liabilities		52,998
Total liabilities assumed		1,477,936
Net non-cash assets acquired		90,831
Net cash and cash equivalents acquired in acquisition		117,587
Common stock issued in acquisition		$ 208,418