Debt - Schedule of Carrying Values of All Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jun. 30, 2018
Debt
Carrying amount of equity conversion component	$ 14,650	$ 14,650
Principal amount of the Notes	152,539	148,685
Unamortized debt costs	(4,493)	(5,072)
Unamortized debt discount	(11,223)	(12,536)
Net carrying amount	136,823	131,077
Reported as:
Long-term debt	136,823	131,077
Net carrying amount	136,823	131,077
Revolving Credit Facility
Debt
Principal amount of the Notes	22,539	23,685
Net carrying amount	22,539	23,685
Reported as:
Net carrying amount	22,539	23,685
3.75% Convertible Senior Notes due 2022
Debt
Carrying amount of equity conversion component	14,650	14,650
Principal amount of the Notes	85,000	85,000
Unamortized debt costs	(3,031)	(3,351)
Unamortized debt discount	(10,951)	(12,267)
Net carrying amount	71,018	69,382
Reported as:
Net carrying amount	71,018	69,382
Term Loan Facility due December 2022
Debt
Principal amount of the Notes	45,000	40,000
Unamortized debt costs	(1,462)	(1,721)
Unamortized debt discount	(272)	(269)
Net carrying amount	43,266	38,010
Reported as:
Net carrying amount	$ 43,266	$ 38,010