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Other Assets - Schedule of Other Assets (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Other Current Assets:    
Income tax receivable $ 10,322us-gaap_IncomeTaxesReceivable $ 39us-gaap_IncomeTaxesReceivable
Other 17,190us-gaap_OtherAssetsMiscellaneousCurrent 16,676us-gaap_OtherAssetsMiscellaneousCurrent
Total other current assets 27,512us-gaap_OtherAssetsCurrent 16,715us-gaap_OtherAssetsCurrent
Other Assets:    
Deferred tax assets, net 7,202us-gaap_DeferredTaxAssetsNetNoncurrent 9,208us-gaap_DeferredTaxAssetsNetNoncurrent
Long-term income tax receivable 8,092us-gaap_IncomeTaxesReceivableNoncurrent 20,516us-gaap_IncomeTaxesReceivableNoncurrent
Other 1,912us-gaap_OtherAssetsMiscellaneousNoncurrent 2,123us-gaap_OtherAssetsMiscellaneousNoncurrent
Total other assets $ 17,206us-gaap_OtherAssetsNoncurrent $ 31,847us-gaap_OtherAssetsNoncurrent