CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash Flows From Operating Activities
Net income	$ 45,283	$ 52,423
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation	5,897	5,092
Amortization and impairment of other intangible assets	3,840	4,365
Net premium amortization on investment securities	6,525	9,007
Amortization of FDIC indemnification asset	17,813	3,776
Stock compensation expense	2,506	2,136
Provision for loan losses	(363)	(2,848)
Net securities gains	(2,248)	(2,808)
Impairment on available-for-sale securities	100
Gain on branch divestitures		(2,244)
Recognition of deferred gain on sale leaseback transactions	(3,047)	(3,375)
Gain on derivatives	(250)	(132)
Net gains on sales of other assets	(1,204)	(1,618)
Loss on retirement of debt		993
Increase in cash surrender value of company owned life insurance	(3,107)	(3,258)
Proceeds from sale of residential real estate loans	48,540	83,909
Residential real estate loans originated for sale	(50,557)	(82,586)
Increase in interest receivable	(2,054)	(1,537)
Decrease in other real estate owned	3,821	6,446
Decrease in other assets	4,210	16,543
Decrease in accrued expenses and other liabilities	(4,166)	(19,322)
Total adjustments	26,256	12,539
Net cash flows provided by operating activities	71,539	64,962
Cash Flows From Investing Activities
Net cash and cash equivalents of acquired banks and branches	24,701
Purchases of investment securities available-for-sale	(257,481)	(770,879)
Purchases of investment securities held-to-maturity	(103,299)	(15,624)
Proceeds from maturities, prepayments and calls of investment securities available-for-sale	178,156	358,817
Proceeds from sales of investment securities available-for-sale	76,295	159,073
Proceeds from maturities, prepayments and calls of investment securities held-to-maturity	10,438	15,318
Proceeds on branch divestitures		(144,236)
Proceeds from sale of loans		4,787
Purchases of Federal Home Loan Bank stock		(2,657)
Reimbursements under FDIC loss share agreements	20,306	13,098
Net principal collected from (loans made to) loan customers	(85,480)	1,435
Proceeds from sale of premises and equipment and other assets	43	3,036
Purchases of premises and equipment and other assets	(7,442)	(7,321)
Net cash flows used in investing activities	(143,763)	(385,153)
Cash Flows From Financing Activities
Deposits	(184,422)	(288,725)
Short-term borrowings	(13,652)	(59,434)
Payments for maturities on other borrowings	(181,019)	(469)
Payments related to retirement of debt		(50,993)
Proceeds from issuance of other borrowings	505,000	700,000
Cash dividends paid on common stock	(22,631)	(20,211)
Common stock repurchased	(1,597)	(7,686)
Proceeds from exercise of stock options, including tax benefit	358	335
Common stock issued	157	139
Net cash flows provided by financing activities	102,194	272,956
Net increase (decrease) in cash and cash equivalents	29,970	(47,235)
Cash and cash equivalents at beginning of period	206,723	264,060
Cash and cash equivalents at end of period	236,693	216,825
Supplemental cash flow information:
Total interest paid	10,044	13,951
Total taxes paid (net of refunds)	$ 9,501	$ 11,282