Derivatives and Hedging Activities - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($) Derivative	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) Derivative	Sep. 30, 2015 USD ($)	Dec. 31, 2015 Derivative	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%
Delayed Draw Term Loan A Facility [Member]
Derivative [Line Items]
Notional amount of outstanding derivative								$ 100,000,000
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 before tax	$ (3,500,000)		$ (3,500,000)
Cumulative translation adjustment after tax	(2,200,000)		$ (2,200,000)
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	$ 1,300,000	$ 2,900,000	$ (800,000)	$ 6,600,000
Net unrealized derivative gain (losses) included in AOCI to be reclassified into earnings in next twelve months			$ 5,100,000
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]
Number of derivative instruments outstanding | Derivative	0		0		0
Interest Rate and Currency Swap [Member]
Derivative [Line Items]
Notional amount of outstanding derivative								$ 100,000,000
Derivative notional amount settled	$ 20,000,000		$ 20,000,000
Amount received on derivative settlement			4,900,000
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	800,000		800,000
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	29,200,000		29,200,000
Fair value of (liability) derivatives, after tax	$ 18,000,000		18,000,000
Semi-annual interest settlement resulted in AOCI			9,600,000
Semi-annual interest settlement resulted in AOCI after tax			$ 6,000,000