Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In-Capital	Accumulated Other Comprehensive Loss	Treasury Stock	Accumulated Deficit
Balance at Jun. 30, 2018	$ 112,732	$ 116	$ 942,397	$ (1,703)		$ (828,078)
Balance, common stock, shares at Jun. 30, 2018		116,124
Treasury stock, value at Jun. 30, 2018					$ 0
Cumulative effect of adopting ASU 2016-01 at Jun. 30, 2018				(497)		497
Net loss	(9,065)					(9,065)
Other comprehensive loss	(497)			(497)
Issuance of common stock from equity incentive plans, net of tax	7,136	$ 2	7,134
Issuance of common stock from equity incentive plans, net of tax, shares		2,146
Share-based compensation	6,825		6,825
Balance at Sep. 30, 2018	117,131	$ 118	956,356	(2,697)		(836,646)
Balance, common stock, shares at Sep. 30, 2018		118,270
Balance at Jun. 30, 2019	$ 115,987	$ 122	986,772	(2,473)		(853,434)
Balance, common stock, shares at Jun. 30, 2019	121,538	121,538
Treasury stock, shares at Jun. 30, 2019	(2,366)				(2,366)
Treasury stock, value at Jun. 30, 2019	$ (15,000)				$ (15,000)
Net loss	(37,738)					(37,738)
Other comprehensive loss	(898)			(898)
Issuance of common stock from equity incentive plans, net of tax	4,134	$ 2	4,132
Issuance of common stock from equity incentive plans, net of tax, shares		2,326
Stock awards granted in connection with acquisition	3,530		3,530
Share-based compensation	8,834		8,834
Balance at Sep. 30, 2019	$ 93,849	$ 124	$ 1,003,268	$ (3,371)		$ (891,172)
Balance, common stock, shares at Sep. 30, 2019	123,864	123,864
Treasury stock, shares at Sep. 30, 2019	(2,366)				(2,366)
Treasury stock, value at Sep. 30, 2019	$ (15,000)				$ (15,000)