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Basis of Presentation - Revenue Recognition (Detail) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2019	Jun. 30, 2019
Contract Assets
Unbilled revenue	$ 38,257	$ 19,287
Contract Liabilities
Advances from customers	49,845	43,227
Deferred revenue - current	29,900	33,641
Deferred revenue - long-term	8,656	$ 9,506
Remaining Performance Obligations
Revenue remaining performance obligation	150,100
Recognized revenue from contract liabilities	$ 34,300
Revenue, Practical Expedient, Financing Component [true false]	true
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-10-01
Remaining Performance Obligations
Remaining performance obligation expected timing of satisfaction period	12 months
Remaining performance obligation expected percentage recognized	49.00%
ASU 2014-09 | Effect of Change
Contract Assets
Unbilled revenue	$ 18,970
Percentage of change in unbilled revenue	98.00%
Contract Liabilities
Advances from customers	$ 6,618
Deferred revenue - current	(3,741)
Deferred revenue - long-term	$ (850)
Percentage of of change in customer deposits and prepayments	15.00%
Percentage of change deferred revenue current	(11.00%)
Percentage of change deferred revenue noncurrent	(9.00%)

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