Stock Incentive Plan and Employee Stock Purchase Plan - Stock Options (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Additional disclosures
Fair value of common stock (in dollars per share)	$ 4.75
Share-based compensation expense	$ 13,629	$ 12,638	$ 13,930
Stock options
Weighted average assumptions used for determining fair value of options
Risk-free interest rate (as a percent)	1.76%
Expected term (in years)	5 years 1 month 13 days	0 years	0 years
Expected volatility (as a percent)	46.40%
Options Outstanding
Balance at the beginning of the year (in shares)	2,377	2,537	3,209
Options granted (in shares)	760
Options exercised (in shares)	(113)	(59)	(529)
Options forfeited/expired (in shares)	(561)	(101)	(143)
Balance at the end of the year (in shares)	2,463	2,377	2,537	3,209
Vested or Expected to vest at the end of the year (in shares)	2,463
Exercisable at the end of the year (in shares)	1,703
Weighted Average Exercise Price
Balance at the beginning of the year (in dollars per share)	$ 8.00	$ 7.91	$ 7.44
Options granted (in dollars per share)	5.05
Options exercised (in dollars per share)	5.18	4.89	4.84
Options forfeited/expired (in dollars per share)	13.38	7.53	8.72
Balance at the end of the year (in dollars per share)	6.05	$ 8.00	$ 7.91	$ 7.44
Vested or Expected to vest at the end of the year (in dollars per share)	6.05
Exercisable at the end of the year (in dollars per share)	$ 6.49
Weighted Average Remaining Contractual Life (In Years)
Balance	5 years 5 months 1 day	3 years 11 months 19 days	5 years 1 month 6 days	5 years 4 months 17 days
Vested or Expected to vest at the end of the year	5 years 5 months 1 day
Exercisable at the end of the year	3 years 7 months 21 days
Aggregate Intrinsic Value (in thousands)
Balance at the beginning of the year	$ 452	$ 1,862	$ 8,251
Balance at the end of the year	191	452	1,862	$ 8,251
Vested or Expected to vest at the end of the year	191
Exercisable at the end of the year	191
Additional disclosures
Total intrinsic value of options exercised	100	100	1,400
Share-based compensation expense	500	800	1,100
Realized excess tax benefits related to stock options exercises	0	$ 0	$ 0
Unrecognized compensation cost related to unvested stock options, net of estimated forfeitures	$ 1,400
Weighted average period for recognition of compensation costs	3 years 5 months 1 day