Share-based Compensation (Summary of Stock Option Activity) (Details) $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended	12 Months Ended
	Mar. 31, 2017 USD ($) $ / shares shares	Jun. 30, 2016 USD ($) $ / shares shares
Number of Shares
Options outstanding at June 30, 2016 | shares	6,385
Exercised | shares	(1,467)
Cancelled | shares	(1,044)
Options outstanding at March 31, 2017 | shares	3,874	6,385
Vested and expected to vest at March 31, 2017 | shares	3,874
Exercisable at March 31, 2017 | shares	2,919
Weighted-Average Exercise Price Per Share
Options outstanding at June 30, 2016 | $ / shares	$ 4.10
Exercised | $ / shares	3.75
Cancelled | $ / shares	4.51
Options outstanding at March 31, 2017 | $ / shares	4.12	$ 4.10
Vested and expected to vest at March 31, 2017 | $ / shares	4.12
Exercisable at March 31, 2017 | $ / shares	$ 4.48
Weighted-Average Remaining Contractual Term
Options outstanding	4 years 1 month 10 days	3 years 8 months 12 days
Vested and expected to vest at March 31, 2017	4 years 1 month 10 days
Exercisable at March 31, 2017	3 years 3 months 7 days
Aggregate Intrinsic Value
Options outstanding | $	$ 13,143	$ 1,416
Vested and expected to vest at March 31, 2017 | $	13,143
Exercisable at March 31, 2017 | $	$ 8,841