Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net income	$ 62,332	$ 63,355
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	10,230	10,016
Stock-based compensation	3,886	3,845
Provision for credit losses	4,500	(1,673)
Net amortization of premiums and accretion of discounts on securities and borrowings	12,519	13,757
Amortization of other intangible assets	4,489	4,697
(Gains) losses on securities transactions, net	(2,324)	1
Proceeds from sales of loans held for sale	53,005	56,579
Gains on sales of loans, net	(1,020)	(1,592)
Originations of loans held for sale	(32,793)	(53,568)
Gains on sales of assets, net	(481)	(128)
FDIC loss-share receivable (excluding reimbursements)	3,325	7,787
Net change in:
Trading securities	14,233	43
Fair value of borrowings carried at fair value	(1,059)	0
Cash surrender value of bank owned life insurance	(3,382)	(3,022)
Accrued interest receivable	(945)	314
Other assets	(25,207)	37,596
Accrued expenses and other liabilities	(1,696)	(32,852)
Net cash provided by operating activities	99,612	105,155
Cash flows from investing activities:
Net loan originations	(385,576)	(243,102)
Loans purchased	(629,074)	(26,746)
Investment securities held to maturity:
Purchases	(168,682)	(279,718)
Sales	11,666	0
Maturities, calls and principal repayments	209,017	185,690
Investment securities available for sale:
Purchases	(26,791)	(9,180)
Sales	14,022	0
Maturities, calls and principal repayments	80,994	77,396
Proceeds from sales of real estate property and equipment	7,626	10,172
Purchases of real estate property and equipment	(9,106)	(13,518)
Reimbursements from the FDIC	1,753	4,283
Net cash used in investing activities	(894,151)	(294,723)
Cash flows from financing activities:
Net change in deposits	296,915	96,790
Net change in short-term borrowings	(20,633)	72,775
Proceeds from issuance of long-term borrowings, net	98,851	0
Proceeds from issuance of preferred stock, net	111,590	0
Cash dividends paid to common shareholders	(51,012)	(43,995)
Purchase of common shares to treasury	(2,082)	(938)
Common stock issued, net	3,708	2,449
Net cash provided by financing activities	437,337	127,081
Net change in cash and cash equivalents	(357,202)	(62,487)
Cash and cash equivalents at beginning of year	830,407	369,168
Cash and cash equivalents at end of period	473,205	306,681
Supplemental disclosures of cash flow information:
Interest on deposits and borrowings	78,777	78,549
Federal and state income taxes	38,525	20,102
Supplemental schedule of non-cash investing activities:
Transfer of loans to other real estate owned	4,369	6,340
Transfer of loans to loans held for sale	$ 0	$ 27,329