Earnings (Loss) Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Numerator:
Net income (loss)	$ (171,948)	$ 5,084	$ (178,447)	$ (7,073)
Adjusted "if-converted" net loss	$ (171,948)	$ 5,084	$ (178,447)	$ (7,073)
Denominator:
Basic weighted average common shares outstanding	39,443,441	38,605,052	39,257,211	38,457,159
Effect of potentially dilutive options and restricted stock awards		1,952,451
Diluted weighted average common shares outstanding	39,443,441	40,557,503	39,257,211	38,457,159
Earnings (loss) per common share:
Basic (in dollars per share)	$ (4.36)	$ 0.13	$ (4.55)	$ (0.18)
Diluted (in dollars per share)	$ (4.36)	$ 0.13	$ (4.55)	$ (0.18)
Anti-dilutive shares excluded in the computation of diluted earnings per share	8,100,000	6,000,000.0	8,100,000	6,700,000