Revenue Recognition - Additional Information (Detail) - USD ($) $ in Thousands			3 Months Ended	6 Months Ended
	Dec. 31, 2018	Jul. 01, 2018	Dec. 31, 2018	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Performance obligations	$ 367,000		$ 367,000	$ 367,000
Deferred revenue	75,189	$ 88,888	$ 24,700	$ 51,800
Capitalized costs are amortized on a ratable basis over the estimated period			5 years	5 years
Remainder of 2018 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Performance obligations	160,000		$ 160,000	$ 160,000
Capitalized Obtaining Costs [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Capitalized contract costs and capitalized fulfillment costs	5,200		5,200	5,200
Amortization expense			500	800
Capitalized Fulfillment Costs [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Capitalized contract costs and capitalized fulfillment costs	$ 16,300		16,300	16,300
Amortization expense			$ 900	$ 1,400