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Discontinued Operations and Assets Held for Sale (Details 2) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Tax (benefit) provision $ (5,064,000) $ 82,581,000 $ 17,156,000 $ 63,944,000
Asset impairment charges   26,000,000   26,000,000
Discontinued operations
       
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Goodwill impairment       100,000,000
Asset impairment charges       $ 15,000,000