CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Revenues	$ 6,202,917	$ 6,044,135	$ 5,720,042
Costs of revenues:
Direct costs	4,051,188	3,930,707	3,719,056
Indirect costs and selling expenses	1,520,719	1,448,614	1,432,602
Depreciation and amortization	134,681	125,363	110,688
Total costs of revenues	5,706,588	5,504,684	5,262,346
Income from operations	496,329	539,451	457,696
Interest expense and other, net	41,757	39,836	56,059
Income before income taxes	454,572	499,615	401,637
Income taxes	87,778	42,172	80,157
Net income	$ 366,794	$ 457,443	$ 321,480
Basic earnings per share	$ 15.64	$ 18.52	$ 12.84
Diluted earnings per share	$ 15.49	$ 18.30	$ 12.61
Weighted-average basic shares outstanding	23,446	24,705	25,031
Weighted-average diluted shares outstanding	23,677	24,992	25,485