CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 366,794	$ 457,443	$ 321,480
Other comprehensive income (loss):
Foreign currency translation adjustment	(29,401)	22,656	(4,990)
Change in fair value of interest rate swap agreements, net of tax	33,633	12,753	(24,280)
Effects of post-retirement adjustments, net of tax	983	585	141
Total other comprehensive income (loss), net of tax	5,215	35,994	(29,129)
Comprehensive income	$ 372,009	$ 493,437	$ 292,351