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Discontinued Operations - Assets and Liabilities Held For Sale (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Disposal Group Including Discontinued Operation Balance Sheet Disclosures [Abstract]    
Current assets held for sale $ 0 $ 3,113
Long-term assets held for sale 650 2,005
Total assets held for sale 650 5,118
Current liabilities held for sale 0 536
Total Liabilities held for sale 0 536
Net assets and liabilities held for sale $ 650 $ 4,582