Derivatives and Hedging Activities - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Mar. 31, 2017 USD ($) Derivative	Mar. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($) 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%
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]
Fair Value of (Liability) Derivatives				$ 4,700,000
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)
Cumulative translation adjustment after tax	$ (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	$ (2,900,000)	$ (3,400,000)
Net unrealized derivative gain (losses) included in AOCI to be reclassified into earnings in next twelve months	$ 2,300,000
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
Interest Rate and Currency Swap [Member]
Derivative [Line Items]
Notional amount of outstanding derivative							$ 100,000,000
Derivative notional amount settled			$ 20,000,000
Amount received on derivative settlement			$ 4,900,000
Amount paid on derivative settlement	$ 1,800,000
Fair Value of (Liability) Derivatives	20,000,000			$ 23,900,000
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	23,000,000
Fair value of (liability) derivatives, after tax	14,200,000
Cross-Currency Swaps [Member]
Derivative [Line Items]
Fair Value of (Liability) Derivatives	(7,000,000)			$ (5,300,000)
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	(7,000,000)
Fair value of (liability) derivatives, after tax	(4,300,000)
Semi-annual interest settlement resulted in AOCI	13,900,000
Semi-annual interest settlement resulted in AOCI after tax	$ 8,600,000