Stock-Based Compensation (Details 3) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014	Jun. 30, 2014
Weighted Average Grant Date Fair Value
Payments related to tax withholding			$ 3,874,000	$ 5,935,000
Stock Options
Stock options activity
Outstanding, beginning of period (in shares)			1,246,528
Granted (in shares)			310,978
Exercised (in shares)			(155,183)
Cancelled / Forfeited (in shares)			(36,803)
Outstanding, end of period (in shares)	1,365,520		1,365,520		1,246,528
Vested and exercisable, end of period (in shares)	835,215		835,215
Vested and expected to vest, end of period (in shares)	1,301,415		1,301,415
Weighted Average Exercise Price
Outstanding, beginning of period (in dollars per share)			$ 20.30
Granted (in dollars per share)			$ 42.65
Exercised (in dollars per share)			$ 13.19
Cancelled / Forfeited (in dollars per share)			$ 25.37
Outstanding, end of period (in dollars per share)	$ 26.06		$ 26.06		$ 20.30
Vested and exercisable, end of period (in dollars per share)	$ 20.59		$ 20.59
Vested and expected to vest, end of period (in dollars per share)	$ 25.66		$ 25.66
Weighted Average Remaining Contractual Term
Outstanding, end of period			7 years 3 months 4 days		7 years 1 month 21 days
Vested and exercisable, end of period			6 years 5 months 9 days
Vested and expected to vest, end of period			7 years 2 months 12 days
Aggregate Intrinsic Value
Outstanding, end of period	18,395,000		18,395,000		32,543,000
Vested and exercisable, end of period	15,268,000		15,268,000
Vested and expected to vest, end of period	17,989,000		17,989,000
Weighted Average Grant Date Fair Value
Total unrecognized compensation cost	5,400,000		5,400,000
Total unrecognized compensation cost, period of recognition			2 years 7 months 6 days
Total intrinsic value of options exercised	1,100,000	7,600,000	4,100,000	16,800,000
Cash proceeds from option exercises			2,000,000	7,500,000
Restricted Stock Units
Restricted stock units activity
Outstanding, beginning of period (in shares)			617,269
Granted (in shares)			367,618
Settled (in shares)			(308,930)
Cancelled / Forfeited (in shares)			(37,137)
Outstanding, end of period (in shares)	638,820		638,820
Vested and expected to vest (in shares)	561,709		561,709
Weighted Average Grant Date Fair Value
Outstanding, beginning of period (in dollars per share)			$ 25.74
Granted (in dollars per share)	$ 35.23	$ 43.70	$ 42.64	$ 33.05
Settled (RSUs) (in dollars per share)			$ 27.30
Cancelled / Forfeited (in dollars per share)			$ 26.83
Outstanding, end of period (in dollars per share)	$ 34.65		$ 34.65
Vested and expected to vest, end of period (in dollars per share)			$ 34.72
Total fair value of shares vested from RSU grants	3,800,000	4,800,000	11,500,000	17,000,000
Total unrecognized compensation cost	19,300,000		19,300,000
Total unrecognized compensation cost, period of recognition			2 years 8 months 12 days
Payments related to tax withholding			$ 3,900,000	$ 5,900,000
2010 Plan
Stock-based compensation, additional disclosures
Common stock reserved for future issuance or settlement (in shares)	5,600,000		5,600,000
2005 Plan
Stock-based compensation, additional disclosures
Stock options and RSU's outstanding that were issued under the 2005 Plan prior to its expiration date	542,859		542,859