CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 384,735	$ 366,794	$ 457,443
Other comprehensive income (loss):
Foreign currency translation adjustment	8,267	(29,401)	22,656
Change in fair value of interest rate swap agreements, net of tax	17,714	33,633	12,753
Effects of post-retirement adjustments, net of tax	44	983	585
Total other comprehensive income, net of tax	26,025	5,215	35,994
Comprehensive income	$ 410,760	$ 372,009	$ 493,437