Supplemental Financial Information - Consolidated Statements of Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Supplemental Financial Information Disclosure [Abstract]
Interest expense	$ (18,080)	$ (15,084)	$ (14,959)
Foreign currency transaction loss	(2,343)	(665)	(986)
Gain on contribution to equity method investment	12,964
Other (expense) income	759	822	(3,279)
Total other expense, net	$ (6,700)	$ (14,927)	$ (19,224)