Contract Balances - Contract Assets and Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Jun. 30, 2019
Contract assets – current:
Unbilled receivables	$ 103,860	$ 90,073
Costs to obtain – short-term	2,786	2,685
Contract assets – noncurrent:
Unbilled receivables	7,730	7,381
Costs to obtain – long-term	5,927	5,353
Contract liabilities – current:
Deferred revenue and other contract liabilities – short-term	(71,216)	(55,667)
Contract liabilities – noncurrent:
Deferred revenue and other contract liabilities – long-term	(7,247)	(7,445)
Net contract assets (liabilities)	$ 41,840	$ 42,380