The Company and Summary of Significant Accounting Policies - Weighted-Average Ordinary Shares Excluded from Computation of Diluted Net Income per Share (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Convertible Debt Securities [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Ordinary shares	2,878	1,502	2,878	506
Equity Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Ordinary shares	1,644	883	1,517	5,475
Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Ordinary shares	0	0	0	618
Ordinary shares under ESPP [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Ordinary shares	0	0	0	130
Convertible Debt [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Interest rate	1.875%	1.875%	1.875%	1.875%	1.875%