Revenues - Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Jun. 30, 2024
Revenue from Contract with Customer [Abstract]
Billed and billable receivables	$ 1,098,237	$ 885,552
Contract assets – current unbilled receivables	307,204	145,759
Contract assets – current costs to obtain	7,059	6,142
Contract assets – noncurrent unbilled receivables	14,694	13,311
Contract assets – noncurrent costs to obtain	13,897	12,310
Contract liabilities – current deferred revenue and other contract liabilities	(190,400)	(139,745)
Contract liabilities – noncurrent deferred revenue and other contract liabilities	$ (6,014)	$ (4,607)