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Basis of Presentation - Revenue Recognition (Detail) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2019	Jun. 30, 2019
Contract Assets
Unbilled revenue	$ 31,985	$ 19,287
Contract Liabilities
Advances from customers	32,640	43,227
Deferred revenue - current	30,171	33,641
Deferred revenue - long-term	8,351	$ 9,506
Remaining Performance Obligations
Revenue remaining performance obligation	189,200
Recognized revenue from contract liabilities	$ 52,200
Revenue, Practical Expedient, Financing Component [true false]	true
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Remaining Performance Obligations
Remaining performance obligation expected timing of satisfaction period	12 months
Remaining performance obligation expected percentage recognized	51.00%
ASU 2014-09 | Effect of Change
Contract Assets
Unbilled revenue	$ 12,698
Percentage of change in unbilled revenue	66.00%
Contract Liabilities
Advances from customers	$ (10,587)
Deferred revenue - current	(3,470)
Deferred revenue - long-term	$ (1,155)
Percentage of of change in customer deposits and prepayments	(24.00%)
Percentage of change deferred revenue current	(10.00%)
Percentage of change deferred revenue noncurrent	(12.00%)

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