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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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