Derivative Instruments - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2016 JPY (¥)	Jun. 30, 2016 USD ($)
Minimum
Derivative [Line Items]
Foreign currency forward exchange contracts, expiration date			2017-01
Maximum
Derivative [Line Items]
Foreign currency forward exchange contracts, expiration date			2017-04
Foreign Currency Forward Exchange Contracts
Derivative [Line Items]
Foreign currency forward exchange contracts, notional amount | $	$ 13,600,000		$ 13,600,000			$ 9,200,000
Change in fair value of foreign currency forward exchange contracts | $	$ 1,300,000	$ 1,300,000	$ 1,700,000	$ 1,700,000
Foreign Currency Forward Exchange Contracts | Minimum
Derivative [Line Items]
Foreign currency forward exchange contracts, notional amount | ¥					¥ 350,000,000
Foreign Currency Forward Exchange Contracts | Maximum
Derivative [Line Items]
Foreign currency forward exchange contracts, notional amount | ¥					¥ 400,000,000