Credit Agreement - Narrative (Details) - USD ($) $ in Thousands	Dec. 23, 2019	Jun. 30, 2021	Jun. 30, 2020
Line of Credit Facility [Line Items]
Total		$ 296,000
Variable rate spread (as a percent)	0.50%
Margin rate (as a percent)	0.50%
Current borrowings		20,000	$ 135,163
Non-current borrowings, net		273,162	292,369
Debt Issuance Costs, Line of Credit Arrangements, Net		$ 2,800	3,600
Maximum leverage ratio		3.50
Minimum interest coverage ratio		2.50
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Total	$ 200,000
Current borrowings			119,200
Secured Debt [Member]
Line of Credit Facility [Line Items]
Current borrowings		$ 20,000	16,000
Adjusted LIBOR
Line of Credit Facility [Line Items]
Variable rate spread (as a percent)	1.00%
Margin rate (as a percent)	1.50%
Secured Debt [Member]
Line of Credit Facility [Line Items]
Total	$ 320,000
Effective interest rate (as a percent)		1.61%
Term Loan Facility, Amount Outstanding		$ 296,000
Non-current borrowings, net		$ 276,000	$ 296,000