CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-In Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Loss	Treasury Stock	Total
Balance, beginning at Jun. 30, 2017	$ 37	$ 292,780	$ 277,774	$ (222)	$ (9,247)	$ 561,122
Balance, beginning (in shares) at Jun. 30, 2017	37,528
Increase (Decrease) in Shareholders' Equity
Shares issued in connection with share-based compensation plans	$ 1	4,141				4,142
Shares issued in connection with share-based compensation plans (in shares)	729
Share-based compensation		9,896				9,896
Purchase of treasury stock					(4,642)	(4,642)
Other comprehensive income (loss), net of income tax				(293)		(293)
Net loss			28,690			28,690
Balance, ending at Jun. 30, 2018	$ 38	306,817	306,464	(515)	(13,889)	598,915
Balance, ending (in shares) at Jun. 30, 2018	38,257
Increase (Decrease) in Shareholders' Equity
Shares issued in connection with share-based compensation plans	$ 1	1,179				1,180
Shares issued in connection with share-based compensation plans (in shares)	713
Share-based compensation		9,027				9,027
Purchase of treasury stock					(592)	(592)
Other comprehensive income (loss), net of income tax				(100)		(100)
ASC 606 adjustment, net of tax			(2,282)			(2,282)
Net loss			(272,107)			(272,107)
Balance, ending at Jun. 30, 2019	$ 39	317,023	32,075	(615)	(14,481)	334,041
Balance, ending (in shares) at Jun. 30, 2019	38,970
Increase (Decrease) in Shareholders' Equity
Shares issued in connection with share-based compensation plans	$ 1	997				998
Shares issued in connection with share-based compensation plans (in shares)	993
Share-based compensation		10,216				10,216
Purchase of treasury stock					(1,909)	(1,909)
Other comprehensive income (loss), net of income tax				(12)		(12)
Capped call transaction		(7,072)				(7,072)
Net loss			(33,366)			(33,366)
Balance, ending at Jun. 30, 2020	$ 40	$ 321,164	$ (1,291)	$ (627)	$ (16,390)	$ 302,896
Balance, ending (in shares) at Jun. 30, 2020	39,963