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The Company - Schedule of Changes in Contract Assets and Contract Liabilities (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Mar. 31, 2021
Mar. 31, 2021
Mar. 31, 2020
Contract with Customer Asset and Liability [Line Items]      
Receivables, beginning of period   $ 2,605
Amounts billed   15,744 1,088
Payments received   (18,349) (1,014)
Receivables, end of period $ 0 0 74
Contract assets, beginning of period   335 511
Billable amounts   22,841 930
Amounts billed   (15,744) (1,088)
Contract assets, end of period 7,432 7,432 353
Contract liabilities, beginning of period   82,497 7,771
Net change (2,100) 7,377 (2,479)
Contract liabilities, end of period $ 89,877 $ 89,877 $ 5,292