Debt (Components of Debt) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Line Of Credit Facility [Line Items]
Less: unamortized debt issuance costs	$ (2,484)	$ (489)
Current portion of long-term debt	16,516	9,011
Long-term debt, less current portion, net of unamortized debt issuance costs of $7,165 and $1,261, respectively	394,585	169,739
Less: unamortized debt issuance costs	(7,165)	(1,261)
Long-term debt, less current portion	394,585	169,739
Total debt	411,101	178,750
Term Loan
Line Of Credit Facility [Line Items]
Current portion of long-term debt	19,000	9,500
Long-term debt, less current portion	346,750	$ 171,000
Revolving Facility
Line Of Credit Facility [Line Items]
Long-term debt, less current portion	$ 55,000