Contract Balances - Contract Assets and Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021
Contract with Customer, Asset and Liability [Abstract]
Billed and billable receivables	$ 720,032	$ 763,921
Contract assets – current unbilled receivables	137,149	115,930
Contract assets – current costs to obtain	4,907	4,144
Contract assets – noncurrent unbilled receivables	11,134	12,159
Contract assets – noncurrent costs to obtain	10,925	9,584
Contract liabilities – current deferred revenue and other contract liabilities	(104,730)	(70,907)
Contract liabilities – noncurrent deferred revenue and other contract liabilities	$ (7,906)	$ (6,837)