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Mergers And Acquisitions (Details) (USD $) In Thousands, except Share data, unless otherwise specified |  |  | 3 Months Ended
--- | --- | --- | ---
Mar. 31, 2012 | Dec. 31, 2010 | Dec. 31, 2010 Comm Bancorp, Inc. [Member] | Mar. 31, 2012 Parkvale [Member]
Business Acquisition [Line Items] |  |  |  |
Assets acquired as a result of merger | $ 1,845,965 |  | $ 625,570 | $ 1,815,663
Loans acquired as a result of merger | 922,056 |  | 445,271 | 937,350
Deposits acquired as a result of merger | 1,525,253 |  | 561,775 | 1,505,671
Value of acquisition | 136,818 |  | 75,547 | 136,818
Cash paid for acquisition of CBI |  |  | 17,203 |
Common stock issued for exchange in merger | 12,159,312 | 5,941,287 | 1,719,978 | 5,582,846
Value of preferred stock repaid |  |  |  | 31,762
Warrants converted to purchase of common stock | 819,640 |  |  | 819,640
Warrant, expiration date |  |  |  | Dec. 23, 2018
Warrants, exercise price |  |  |  | $ 5.81
Goodwill recorded as a result of merger |  |  | 40,256 | 101,543
Core deposit intangible recorded as a result of merger |  |  | 4,785 | 14,984
Merger and integration charges |  |  |  | $ 6,994

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