CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024
Income Statement [Abstract]
Revenues	$ 2,220,097	$ 2,099,809	$ 4,507,720	$ 4,156,698
Costs of revenues:
Direct costs	1,495,011	1,402,225	3,042,205	2,816,649
Indirect costs and selling expenses	464,585	466,661	938,441	894,607
Depreciation and amortization	54,032	49,625	108,330	84,303
Total costs of revenues	2,013,628	1,918,511	4,088,976	3,795,559
Income from operations	206,469	181,298	418,744	361,139
Interest expense and other, net	44,950	44,066	91,123	68,036
Income before income taxes	161,519	137,232	327,621	293,103
Income taxes	37,664	27,294	78,956	62,988
Net income	$ 123,855	$ 109,938	$ 248,665	$ 230,115
Basic earnings per share (in dollars per share)	$ 5.61	$ 4.90	$ 11.28	$ 10.29
Diluted earnings per share (in dollars per share)	$ 5.59	$ 4.88	$ 11.22	$ 10.21
Weighted average basic shares outstanding (in shares)	22,082	22,414	22,038	22,359
Weighted average diluted shares outstanding (in shares)	22,145	22,534	22,156	22,537