Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Operating Activities:
Net income	$ 88,090	$ 66,417
Adjustment to reconcile net income to net cash provided by operating activities:
Provision for credit losses		7,500	7,500
Depreciation and amortization	20,336	19,874
Deferred taxes	(1,939)	(3,002)
Amortization of intangibles	3,332	2,151
Amortization of debt securities premium and discount, net	9,921	11,514
Share-based compensation expense	1,480	2,017
Security losses (gains), net	(19)	(17)
Net deferred loan origination expense	(5,199)	(5,845)
Excess tax benefit from exercise of stock options	1,248	68
Increase (Decrease) in Accrued Interest Receivable, Net	161	(1,322)
Decrease in interest payable	(942)	(984)
Realized gain on mortgages sold	(24,543)	(42,343)
Proceeds from mortgages sold	781,368	1,301,266
Origination of mortgages held for sale	(793,850)	(1,202,701)
Loss on other real estate owned, net	10,485	5,325
Increase in bank-owned life insurance	(5,599)	(5,849)
Decrease in prepaid pension asset	4,244	15,175
Other, net	21,692	(11,985)
Net cash provided by operating activities	109,944	159,903
Investing activities:
Proceeds from calls and maturities of available-for-sale securities	426,015	408,824
Purchases of available-for-sale securities	(160,387)	(617,203)
Net (increase) decrease in loans and leases	(599,310)	(169,671)
Purchases of premises and equipment	(12,685)	(18,077)
Proceeds from sale of premises and equipment	336	3,047
Purchase of bank-owned life insurance, net of proceeds from death benefits	1,206
Acquisition of Insurance Agency	(5,060)
Proceeds from sale of other real estate owned, net	28,366	41,617
Other, net	(12)	108
Net cash used in investing activities	(321,531)	(351,355)
Financing activities:
Net increase in deposits	(72,299)	(370,200)
Net increase (decrease) in short-term debt and other liabilities	10,388	4,000
Advances of long-term debt	8,000	50,000
Repayment of advances of long-term debt	(5,972)
Redemption of Junior Subordinated Debt	(8,248)	(128,866)
Issuance of common stock	9,621	459
Repurchase of common stock	(675)
Excess tax benefit from exercise of stock options	(1,248)	(68)
Payment of cash dividends	(16,769)	(6,622)
Net cash (used in) provided by financing activities	(77,202)	(451,297)
Increase (decrease) in cash and cash equivalents	(288,789)	(642,749)
Cash and cash equivalents at beginning of period	528,423	1,203,614	1,203,614
Cash and cash equivalents at end of period	$ 239,634	$ 560,865	$ 528,423