Share-Based Compensation Stock Option Activity (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Summary of Stock Option Activity
Options, Outstanding Beginning Balance	10,945	10,498	8,536
Options, Granted	152	2,086	2,632
Options, Exercised	(3,319)	(1,612)	(470)
Options, Forfeited	(768)	(27)	(200)
Options, Expired or Cancelled	0	0	0
Options, Outstanding Ending Balance	7,010	10,945	10,498	8,536
Weighted Average Exercise Price
Outstanding, Weighted Average Exercise Price, Beginning Balance	$ 0.91	$ 0.64	$ 0.50
Weighted Average Exercise Price, Granted	$ 2.82	$ 1.89	$ 1.04
Weighted Average Exercise Price, Exercised	$ 0.49	$ 0.45	$ 0.32
Weighted Average Exercise Price, Forfeited	$ 1.54	$ 1.36	$ 0.74
Weighted Average Exercise Price, Expired or Cancelled		$ 0.00	$ 0.00
Outstanding, Weighted Average Exercise Price, Ending Balance	$ 1.08	$ 0.91	$ 0.64	$ 0.50
Weighted Average Remaining Contractual Term
Outstanding, Weighted Average Remaining Contractual Term	6 years 8 months 16 days	7 years 5 months 5 days	7 years 11 months 5 days	8 years 4 months 20 days
Weighted Average Remaining Contractual Term, Granted	9 years 0 months 10 days	9 years 7 months 9 days	9 years 7 months 24 days
Weighted Average Remaining Contractual Term, Exercised	5 years 5 months 15 days	6 years 11 months 19 days	7 years 6 months 14 days
Outstanding, Weighted Average Remaining Contractual Term	6 years 8 months 16 days	7 years 5 months 5 days	7 years 11 months 5 days	8 years 4 months 20 days
Additional Disclosures
Options, Exercisable (shares)	5,609
Weighted Average Exercise Price, Exercisable (dollars per share)	$ 0.81
Exercisable, Weighted Average Remaining Contractual Term (years)	6 years 3 months 18 days
Outstanding, Aggregate Intrinsic Value, Beginning Balance	$ 21,219	$ 9,139	$ 820
Aggregate Intrinsic Value, Granted	0	2,122	1,336
Aggregate Intrinsic Value, Exercised	7,128	2,038	252
Outstanding, Aggregate Intrinsic Value, Ending Balance	9,211	21,219	9,139	820
Exercisable, Aggregate Intrinsic Value	$ 8,574