Derivative Financial Instruments - Summary of (Gain) Loss Reclassified From Accumulated Other Comprehensive Loss Earnings For Derivatives(Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($)
Derivative Instruments Gain Loss [Line Items]
(Gain) loss on derivative hedging instruments	$ 1,884
Cross Currency Swap Agreements [Member] | Designated as Hedging Instrument [Member] | Other Non-operating (Income) Expense, Net [Member]
Derivative Instruments Gain Loss [Line Items]
(Gain) loss on derivative hedging instruments	995
Cross Currency Swap Agreements [Member] | Not Designated as Hedging Instrument [Member] | Other Non-operating (Income) Expense, Net [Member]
Derivative Instruments Gain Loss [Line Items]
(Gain) loss on derivative hedging instruments	$ 889