Derivatives and Hedging - Additional Information (Detail) - USD ($)	Sep. 30, 2015	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivative assets and liabilities	$ 82,500,000	$ 89,500,000
Designated as Hedging Instruments [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivative assets and liabilities	3,000,000	2,900,000
Brazilian Real, British Pound Sterling, Australian Dollar, New Zealand Dollar and Euro Denominated Intercompany Balances [Member] | Not Designated as Hedging Instruments [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivative assets and liabilities	47,900,000	63,800,000
British Pound Sterling and Euro-Denominated Trade Receivables [Member] | Not Designated as Hedging Instruments [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivative assets and liabilities	28,800,000	20,800,000
Indian Rupee Net Monetary Assets [Member] | Not Designated as Hedging Instruments [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivative assets and liabilities	2,800,000	1,900,000
Forward Contracts [Member] | Not Designated as Hedging Instruments [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivative assets and liabilities	79,500,000	86,600,000
Foreign Exchange Contracts [Member] | Designated as Hedging Instruments [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivative assets and liabilities	$ 3,000,000	$ 2,900,000