Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Operating activities:
Net Income	$ 23,753	$ 16,515
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	28,379	21,048
Depreciation, accretion and amortization	11,926	7,991
Decrease in accrued interest receivable	1,451	439
Decrease (increase) in other assets	8,726	(5,047)
Origination of loans held-for-sale	(137,298)	(69,659)
Proceeds from sales of loans held-for-sale	142,535	77,844
Gain on mortgage banking activities, net	(1,882)	(1,035)
Security gains, net	(17,797)	(2,953)
Stock-based compensation expense	1,600	1,216
Excess tax benefits from share-based payment arrangements	(99)	(587)
Increase in accrued interest payable	4,425	5,216
(Decrease) increase in other liabilities	(3,432)	11,884
Loss on sale of assets acquired through foreclosure and valuation adjustments, net	2,891	2,447
Increase in value of bank-owned life insurance	(1,447)	(1,795)
(Increase) decrease in capitalized interest, net	(478)	1
Net cash provided by operating activities	63,253	63,525
Investing activities:
Maturities of investment securities	5,039	11,727
Sale of investment securities available for sale	616,254	216,261
Purchase of investment securities available-for-sale	(751,363)	(415,277)
Repayments of investment securities available-for-sale	101,729	130,184
Disbursements for reverse mortgages	(94)	(396)
Proceeds from loan disposition	31,307
Net increase in loans	(38,190)	(118,138)
Payment of bank-owned life insurance	2,021	2,885
Net decrease (increase) in stock of Federal Home Loan Bank of Pittsburgh	5,585	(102)
Sales of assets acquired through foreclosure, net	11,789	9,088
Investment in premises and equipment, net	(5,747)	(8,090)
Net cash (used for) investing activities	(21,670)	(171,858)
Financing activities:
Net increase in demand and saving deposits	101,059	162,096
Net decrease in time deposits	(58,991)	(14,975)
Net decrease in brokered deposits	(25,717)	(28,245)
Receipts from FHLB advances	27,299,083	9,846,709
Repayments of FHLB advances	(27,444,895)	(9,766,892)
Receipts from federal funds purchased and securities sold under agreement to repurchase	14,135,000	3,103,525
Repayments of federal funds purchased and securities sold under agreement to repurchase	(14,085,000)	(3,103,525)
Repayment of unsecured debt	(30,000)
Issuance of senior debt	52,691
Dividends paid	(5,115)	(5,067)
Issuance of common stock and exercise of common stock options	1,086	914
Repurchase of common stock warrants	(1,800)
Excess tax benefits from share-based payment arrangements	99	587
Net cash (used for) provided by financing activities	(62,500)	195,127
(Decrease) increase in cash and cash equivalents	(20,917)	86,794
Cash and cash equivalents at beginning of period	468,017	376,759
Cash and cash equivalents at end of period	447,100	463,553
Supplemental Disclosure of Cash Flow Information:
Cash paid for interest during the period	13,574	20,220
Cash paid for income taxes, net	8,379	336
Loans transferred to assets acquired through foreclosure	9,290	14,391
Other comprehensive income	$ 6,131	$ 5,805