Credit Agreement (Details) - USD ($) $ in Thousands		9 Months Ended
	Dec. 23, 2019	Mar. 31, 2021	Mar. 31, 2020	Jun. 30, 2020
Secured Debt [Member]
Credit Agreement
Principal amount	$ 320,000	$ 300,000
Effective interest rate (as a percent)		1.61%
Non-current borrowings, net		$ 282,000
Principal amount		300,000
Debt issuance costs		3,000
Short-term Debt		18,000		$ 135,163
Proceeds from borrowings		$ (119,182)	$ 219,163
Variable rate spread (as a percent)	0.50%
Margin rate (as a percent)	0.50%
Maximum leverage ratio		3.50
Minimum interest coverage ratio		2.50
Non-current borrowings, net		$ 278,960		$ 292,369
Adjusted LIBOR
Credit Agreement
Variable rate spread (as a percent)	1.00%
Margin rate (as a percent)	1.50%
Revolving Credit Facility [Member]
Credit Agreement
Principal amount	$ 200,000