CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 93,644	$ 67,977
Other comprehensive income (loss):
Foreign currency translation adjustment	7,793	(5,308)
Change in fair value of interest rate swap agreements, net of tax	2,252	(4,964)
Other comprehensive income (loss), net of tax	10,045	(10,272)
Comprehensive income	$ 103,689	$ 57,705