Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Numerator:
Net (loss) income from continuing operations	$ (79,227)	$ 64,859	$ 35,456
Net loss from discontinued operations	(113,427)	(7,262)	(2,303)
Net (loss) income	$ (192,654)	$ 57,597	$ 33,153
Denominator:
Weighted-average shares, basic (in shares)	25,378,000	25,642,000	25,522,000
Dilutive effect of share-based payments (in shares)	0	92,000	102,000
Weighted-average shares, diluted (in shares)	25,378,000	25,734,000	25,624,000
Net (loss) income from continuing operations per common share, basic (in dollars per share)	$ (3.12)	$ 2.53	$ 1.39
Net (loss) from discontinued operations per common share, basic (in dollars per share)	(4.47)	(0.28)	(0.09)
Net (loss) income per common share, basic (in dollars per share)	(7.59)	2.25	1.30
Net (loss) income from continuing operations per common share, diluted (in dollars per share)	(3.12)	2.52	1.38
Net (loss) from discontinued operations per common share, diluted (in dollars per share)	(4.47)	(0.28)	(0.09)
Net (loss) income per common share, diluted (in dollars per share)	$ (7.59)	$ 2.24	$ 1.29
Weighted average shares excluded from the computation of diluted earnings per share (in shares)	1,040,226	582,856	551,320