Recent Accounting Pronouncements - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Jun. 30, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Excess tax benefits	$ 7	$ (232)	$ (4,031)	$ (4,029)
Cost method investments	$ 7,700		7,700		$ 7,700
Accounting Standards Update 2016-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Excess tax benefits			$ 200
Reclassification of excess tax benefits from financing to operating activities				$ 100
Internal-Use Software Development [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification of asset from property and equipment to intangible assets					$ 29,100