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Discontinued Operations - Condensed Consolidated Statements of Operations (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]  
Operating income (loss) from discontinued operations $ (268)us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss
Net income (loss) from discontinued operations $ (268)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax