Credit Agreement (Details) - USD ($) $ in Thousands		3 Months Ended
	Dec. 23, 2019	Sep. 30, 2020	Sep. 30, 2019	Jun. 30, 2020
Secured Debt [Member]
Credit Agreement
Principal amount	$ 320,000	$ 308,000
Short-term Debt		$ 16,000
Effective interest rate (as a percent)		1.65%
Non-current borrowings, net		$ 292,000
Term Loan Facility, Amount Outstanding		308,000
Debt issuance costs		3,400
Short-term Debt		135,163		$ 135,163
Proceeds from borrowings		$ (4,000)	$ 100,000
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		$ 288,571		$ 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
Short-term Debt		119,200
Line of Credit Facility, Fair Value of Amount Outstanding		$ 119,200
Outstanding Borrowing 2 [Member] | Revolving Credit Facility [Member]
Credit Agreement
Effective interest rate (as a percent)		1.65%
Line of Credit Facility, Fair Value of Amount Outstanding		$ 119,200