Revenues and Contract Balances - Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Jun. 30, 2022
Contract with Customer, Asset and Liability [Abstract]
Billed and billable receivables	$ 656,253	$ 800,597
Contract assets – current unbilled receivables	138,524	125,547
Contract assets – current costs to obtain	5,270	5,167
Accounts receivable, long-term	10,623	10,199
Contract assets – noncurrent costs to obtain	10,307	10,703
Contract liabilities – current deferred revenue and other contract liabilities	(104,519)	(84,810)
Contract liabilities – noncurrent deferred revenue and other contract liabilities	$ (5,775)	$ (7,552)