Derivatives and Hedging Activities - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2015 EUR (€)	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
4.50% Senior Notes due September 2023 [Member]
Derivative [Line Items]
Debt interest rate	4.50%		4.50%		4.50%		4.50%
Delayed Draw Term Loan A Facility [Member]
Derivative [Line Items]
Notional amount of outstanding derivative							$ 100,000,000
Foreign Currency Forward Contracts [Member]
Derivative [Line Items]
Notional amount of outstanding derivative	$ 11,900,000		$ 11,900,000
Foreign Currency Forward Contracts [Member] | Net Investment Hedge [Member]
Derivative [Line Items]
Notional amount of outstanding derivative | €					€ 270,000,000
Derivative foreign exchange expiration date			2015-06
Cumulative translation adjustment	(3,500,000)		$ (3,500,000)
Foreign Currency Forward Contracts [Member] | Designated as Hedging Instruments [Member]
Derivative [Line Items]
Maximum original maturity period of foreign currency forward contracts			12 months
Other comprehensive income unrealized gain (loss) arising during period net of tax	3,000,000	$ (1,000,000)	$ 7,000,000	$ 1,000,000
Net unrealized derivative gain (losses) included in AOCI to be reclassified into earnings in next twelve months			$ 5,700,000
Foreign Currency Forward Contracts [Member] | Not Designated as Hedging Instruments [Member]
Derivative [Line Items]
Maximum original maturity period of foreign currency forward contracts			12 months
Interest Rate Swaps [Member]
Derivative [Line Items]
Notional amount of outstanding derivative	0		$ 0
Interest Rate and Currency Swap [Member]
Derivative [Line Items]
Notional amount of outstanding derivative							$ 100,000,000
EUR - Denominated debt [Member] | Net Investment Hedge [Member] | 4.50% Senior Notes due September 2023 [Member]
Derivative [Line Items]
Debt instrument face amount | €					€ 400,000,000
Debt interest rate					4.50%
EUR - Denominated debt [Member] | Designated as Hedging Instruments [Member] | Net Investment Hedge [Member]
Derivative [Line Items]
Fair Value of (Liability) Derivatives	100,000		100,000
Cross-Currency Swaps [Member] | Net Investment Hedge [Member]
Derivative [Line Items]
Notional amount of outstanding derivative						$ 425,000,000
Cross-Currency Swaps [Member] | Designated as Hedging Instruments [Member] | Net Investment Hedge [Member]
Derivative [Line Items]
Fair Value of (Liability) Derivatives	$ (22,200,000)		$ (22,200,000)