Fair Value Measurements - Summary of Carrying Value and Estimated Fair Value of all Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020
Carrying Value
Fair value measurement
Long term debt	$ 179,689	$ 189,307
Fair Value
Fair value measurement
Long term debt	176,061	178,181
Non-recurring basis | Carrying Value | Level 2 | 3.75% Convertible Notes
Fair value measurement
Long term debt	77,374	76,398
Non-recurring basis | Fair Value | Level 2 | 3.75% Convertible Notes
Fair value measurement
Long term debt	73,746	65,272
Term loan | Non-recurring basis | Carrying Value | Level 2
Fair value measurement
Long term debt	74,972	84,908
Term loan | Non-recurring basis | Fair Value | Level 2
Fair value measurement
Long term debt	74,972	84,908
Revolving Credit Facility | Non-recurring basis | Carrying Value | Level 2
Fair value measurement
Long term debt	27,343	28,001
Revolving Credit Facility | Non-recurring basis | Fair Value | Level 2
Fair value measurement
Long term debt	$ 27,343	$ 28,001