Derivative Financial Instruments - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2016
Derivative [Line Items]
Foreign currency exchange contracts reclassified date	2018-06
Foreign Exchange Risk Management [Member]
Derivative [Line Items]
Hedging effectiveness	100.00%
Foreign Exchange Risk Management [Member] | Maximum [Member]
Derivative [Line Items]
Foreign exchange forward contracts maturity	1 year