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Other Long-Term Assets - Additional Information (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Schedule of Other Long Term Assets [Line Items]    
Other long-term assets, related to certain software and maintenance contracts $ 8,795 $ 11,418
Other Long-Term Assets [Member]    
Schedule of Other Long Term Assets [Line Items]    
Deferred debt-issuance costs 7,100 9,300
Other long-term assets, related to certain software and maintenance contracts $ 1,700 1,600
Long-term restricted cash   $ 500