Stock-Based Compensation - Stock Option Activity (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 30, 2017 USD ($) $ / shares shares	Jun. 30, 2016 USD ($) $ / shares shares	Jun. 30, 2015 $ / shares
Stock Options
Stock options activity
Outstanding, beginning of period (in shares) | shares	1,314,142
Granted (in shares) | shares	482,982
Exercised (in shares) | shares	(332,937)
Cancelled / Forfeited (in shares) | shares	(110,629)
Outstanding, end of period (in shares) | shares	1,353,558	1,314,142
Vested and exercisable, end of period (in shares) | shares	808,094
Vested and expected to vest, end of period (in shares) | shares	1,288,241
Weighted Average Exercise Price
Outstanding, beginning of period (in dollars per share) | $ / shares	$ 32.47
Granted (in dollars per share) | $ / shares	46.31	$ 42.66	$ 42.66
Exercised (in dollars per share) | $ / shares	27.85
Cancelled / Forfeited (in dollars per share) | $ / shares	39.40
Outstanding, end of period (in dollars per share) | $ / shares	37.98	$ 32.47
Vested and exercisable, end of period (in dollars per share) | $ / shares	33.04
Vested and expected to vest, end of period (in dollars per share) | $ / shares	$ 37.61
Weighted Average Remaining Contractual Term
Outstanding, end of period	7 years 3 months 20 days	7 years 2 months 24 days
Vested and exercisable, end of period	6 years 4 months 7 days
Vested and expected to vest, end of period	7 years 2 months 24 days
Aggregate Intrinsic Value
Outstanding, beginning of period | $	$ 12,340
Outstanding, end of period | $	23,535	$ 12,340
Vested and exercisable, end of period | $	17,958
Vested and expected to vest, end of period | $	$ 22,877
Restricted Stock Units
Restricted stock units activity
Outstanding, beginning of period (in shares) | shares	493,332
Granted (in shares) | shares	532,656
Settled (in shares) | shares	(310,074)
Cancelled / Forfeited (in shares) | shares	(99,916)
Outstanding, end of period (in shares) | shares	615,998	493,332
Vested and expected to vest (in shares) | shares	542,323
Weighted Average Grant Date Fair Value
Outstanding, beginning of period (in dollars per share) | $ / shares	$ 41.06
Granted (in dollars per share) | $ / shares	46.59	$ 41.86	$ 42.65
Settled (RSUs) (in dollars per share) | $ / shares	41.71
Cancelled / Forfeited (in dollars per share) | $ / shares	40.42
Outstanding, end of period (in dollars per share) | $ / shares	$ 45.62	$ 41.06
Vested and expected to vest, end of period (in dollars per share) | $ / shares	45.58