Stock-Based Compensation - Stock Option Activity (Details) - Stock Options - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Mar. 31, 2016	Jun. 30, 2015
Stock options activity
Outstanding, beginning of period (in shares)	1,214,257
Granted (in shares)	424,991
Exercised (in shares)	(136,528)
Cancelled / Forfeited (in shares)	(107,778)
Outstanding, end of period (in shares)	1,394,942	1,214,257
Vested and exercisable, end of period (in shares)	837,968
Vested and expected to vest, end of period (in shares)	1,336,466
Weighted Average Exercise Price
Outstanding, beginning of period (in dollars per share)	$ 27.25
Granted (in dollars per share)	42.71
Exercised (in dollars per share)	20.94
Cancelled / Forfeited (in dollars per share)	37.18
Outstanding, end of period (in dollars per share)	31.81	$ 27.25
Vested and exercisable, end of period (in dollars per share)	25.92
Vested and expected to vest, end of period (in dollars per share)	$ 31.39
Weighted Average Remaining Contractual Term
Outstanding, end of period	7 years 4 months 21 days	7 years 3 months 4 days
Vested and exercisable, end of period	6 years 5 months 1 day
Vested and expected to vest, end of period	7 years 3 months 29 days
Aggregate Intrinsic Value
Outstanding, end of period	$ 10,627	$ 22,232
Vested and exercisable, end of period	10,007
Vested and expected to vest, end of period	$ 10,568