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Goodwill and Identifiable Intangible Assets (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Dec. 31, 2011
Goodwill [Line Items]          
Intangible Assets, Net (Including Goodwill) $ 137,300,000   $ 137,300,000   $ 140,700,000
Goodwill Impairment $ 2,227,000    $ 2,227,000