Income/(Loss) Per Common Share - Computation of Basic and Diluted Income/(Loss) Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Earnings Per Share [Abstract]
Net income/(loss)	$ (14,796)	$ (5,240)	$ (15,221)	$ 7,564
Net income/(loss) attributable to common shares	$ (14,796)	$ (5,240)	$ (15,221)	$ 7,564
Weighted average number of common shares outstanding basic	43,998	43,731	43,915	43,678
Effect of dilutive stock equivalents				31
Weighted average number of common shares outstanding diluted	43,998	43,731	43,915	43,709
Net income/(loss) per common share basic	$ (0.34)	$ (0.12)	$ (0.35)	$ 0.17
Net income/(loss) per common share diluted	$ (0.34)	$ (0.12)	$ (0.35)	$ 0.17