Debt - Summary (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Apr. 22, 2021	Apr. 05, 2021	Dec. 07, 2019	Dec. 06, 2019	Sep. 27, 2019
Long-term debt
Debt, net, due within one year	$ 628,391
Long-term debt, net		$ 614,948
7.750% Senior Secured Notes due 2026
Long-term debt
Short-term debt, gross	350,000
Debt, gross		350,000
Unamortized discount and other debt issuance costs	(3,798)	(4,599)
Debt, net, due within one year	346,202
Long-term debt, net		345,401
Interest rate (as a percent)			7.75%	7.75%
Principal amount				$ 350,000
Second Lien Facility
Long-term debt
Short-term debt, gross	225,892
Debt, gross		217,721
Unamortized discount and other debt issuance costs	(28,210)	(32,308)
Debt, net, due within one year	197,682
Long-term debt, net		185,413
Principal amount	190,000	190,000			$ 190,000
Exit fee	5,700	5,700
PIK accrual	30,200	22,000
4.50% Convertible Senior Notes due 2026
Long-term debt
Short-term debt, gross	86,250
Debt, gross		86,250
Unamortized discount and other debt issuance costs	(1,743)	(2,116)
Debt, net, due within one year	$ 84,507
Long-term debt, net		$ 84,134
Interest rate (as a percent)	4.50%
Principal amount								$ 86,300
ABL Credit Facility
Long-term debt
Maximum borrowing capacity	$ 45,000					$ 45,000	$ 30,000