Stock-based Compensation and Stockholders' Equity - Stock Option Activity Summary (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Options Outstanding
Balance at beginning of period (in shares)	8,301,138	8,375,659	8,960,867
Granted (in shares)	434,320	489,705	473,000
Exercised (in shares)	0	(267,970)	(1,007,065)
Forfeited (in shares)	(1,360,823)	(296,256)	(51,143)
Balance at end of period (in shares)	7,374,635	8,301,138	8,375,659
Options vested and exercisable (in shares)	6,624,009	7,563,189	7,348,320	7,495,131
Weighted Average Exercise Price per Share
Balance at beginning of period (in dollars per share)	$ 16.50	$ 15.88	$ 14.88
Granted (in dollars per share)	18.58	23.58	24.27
Exercised (in dollars per share)		11.36	10.80
Forfeited (in dollars per share)	8.94	15.36	17.96
Balance at end of period (in dollars per share)	18.02	16.50	15.88
Options vested and exercisable (in dollars per share)	17.65
Weighted average exercise price (in dollars per share)	$ 17.65	$ 15.71	$ 14.58	$ 13.35
Weighted Average Remaining Contractual Term and Aggregate Intrinsic Value
Weighted average remaining contractual term, options outstanding (in years)	3 years 9 months 25 days
Weighted average remaining contractual term, options vested and exercisable (in years)	3 years 3 months 7 days
Aggregate intrinsic value, options outstanding	$ 25,798
Aggregate intrinsic value, options vested and exercisable	$ 24,811
Total pretax intrinsic value of options exercised		$ 4,000	$ 14,000