Debt (Long-term debt) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024
Total debt:
Long-term debt, gross	$ 658,283	$ 658,283
Unamortized debt discount and issuance costs	(8,965)	(9,571)
Long-term debt	649,318	648,712
Senior Secured Notes Due 2028
Total debt:
Long-term debt, gross	404,950	404,950
Term B Loan
Total debt:
Long-term debt, gross	$ 253,333	$ 253,333