Debt - Schedule of Carrying Values of All Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021
Debt Instrument [Line Items]
Carrying amount of equity conversion component		$ 26,078
Principal amount of the Notes	$ 201,865	202,865
Unamortized debt costs	(4,056)	(3,512)
Unamortized debt discount		(25,556)
Net carrying amount	197,809	173,797
Reported as:
Short-term debt	3,664	3,790
Long-term debt	194,145	170,007
Net carrying amount	197,809	173,797
Revolving Credit Facility
Debt Instrument [Line Items]
Principal amount of the Notes	20,000	20,000
Net carrying amount	20,000	20,000
Reported as:
Net carrying amount	20,000	20,000
3.75% Convertible Notes Due 2022
Debt Instrument [Line Items]
Carrying amount of equity conversion component		134
Principal amount of the Notes	2,865	2,865
Unamortized debt costs	(21)	(34)
Unamortized debt discount		(119)
Net carrying amount	2,844	2,712
Reported as:
Net carrying amount	2,844	2,712
3.75% Convertible Notes Due 2026
Debt Instrument [Line Items]
Carrying amount of equity conversion component		25,944
Principal amount of the Notes	100,000	100,000
Unamortized debt costs	(2,791)	(2,175)
Unamortized debt discount		(25,437)
Net carrying amount	97,209	72,388
Reported as:
Net carrying amount	97,209	72,388
Term Loan Facility due December 2022
Debt Instrument [Line Items]
Principal amount of the Notes	79,000	80,000
Unamortized debt costs	(1,244)	(1,303)
Net carrying amount	77,756	78,697
Reported as:
Net carrying amount	$ 77,756	$ 78,697