Contract Balances - Contract Assets and Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Jul. 01, 2018	[1]
Contract assets – current:
Unbilled receivables	$ 90,316	$ 72,511
Costs to obtain – short-term	2,307	2,342
Contract assets – noncurrent:
Unbilled receivables	9,336	8,620
Costs to obtain – long-term	3,900	3,923
Contract liabilities – current:
Deferred revenue	(51,928)	(43,940)
Contract liabilities – noncurrent:
Deferred revenue	(4,848)	(4,740)
Net contract assets (liabilities)	$ 49,083	$ 38,716

[1] Includes the cumulative effect to the Company’s opening balance sheet from the adoption of ASU 2014-09, Revenue from Contracts with Customers, using the modified retrospective method.