Earnings (Loss) Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Numerator:
Net income (loss)		$ 5,084	$ 12,362	$ (7,073)	$ (275,166)
Adjusted “if-converted” net loss		$ 5,084	$ 12,362	$ (7,073)	$ (275,166)
Denominator:
Basic weighted average common shares outstanding		38,605,052	37,761,176	38,457,159	37,674,200
Effect of potentially dilutive options and restricted stock awards		1,952,451	1,351,371
Diluted weighted average common shares outstanding	[1]	40,557,503	39,112,547	38,457,159	37,674,200
Earnings (loss) per common share:
Basic (in dollars per share)		$ 0.13	$ 0.33	$ (0.18)	$ (7.30)
Diluted (in dollars per share)		$ 0.13	$ 0.32	$ (0.18)	$ (7.30)
Anti-dilutive shares excluded in the computation of diluted earnings per share		6,000,000	540,000	6,700,000	2,200,000

[1] See Note 14 “Earnings (Loss) Per Common Share” for details on calculation.