Summary of Significant Accounting Policies (Details 3) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Jun. 30, 2015	Apr. 17, 2014	Feb. 28, 2013	Aug. 01, 2011
Numerator:
Net loss attributable to stockholders	$ (13,026)	$ (21,650)
Denominator:
Weighted average shares used in computing basic and diluted loss per share	79,760,000	77,290,000
Anti-dilutive securities excluded from the computation of diluted net loss per share (in shares)	14,931,000	18,786,000
3.75% Convertible Notes
Denominator:
Interest rate (as a percent)	3.75%		3.75%			3.75%
Debt Instrument Convertible Number of Shares	10,600,000
3.50% Convertible Notes
Denominator:
Anti-dilutive securities excluded from the computation of diluted net loss per share (in shares)	8,378,000	8,378,000
Interest rate (as a percent)	3.50%		3.50%		3.50%
3.50% Series A Convertible Notes
Denominator:
Anti-dilutive securities excluded from the computation of diluted net loss per share (in shares)	0	3,352,000
Interest rate (as a percent)	3.50%		3.50%	3.50%
Debt Instrument Convertible Number of Shares	13,200,000
Stock options
Denominator:
Anti-dilutive securities excluded from the computation of diluted net loss per share (in shares)	2,458,000	3,032,000
RSUs, PSUs and MSUs
Denominator:
Anti-dilutive securities excluded from the computation of diluted net loss per share (in shares)	4,095,000	4,024,000