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Net Loss Per Share - Outstanding Dilutive Potential Shares Excluded from Calculation of Diluted Net loss Per Share (Details) - shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Antidilutive securities excluded from computation of EPS
Antidilutive securities excluded from the calculation of diluted net (loss) income per share	38,291,761	37,635,124	38,122,727
Stock options, including shares subject to ESPP
Antidilutive securities excluded from computation of EPS
Antidilutive securities excluded from the calculation of diluted net (loss) income per share	24,083,222	22,214,875	19,895,097
Restricted stock units
Antidilutive securities excluded from computation of EPS
Antidilutive securities excluded from the calculation of diluted net (loss) income per share	2,266,387	2,399,465	1,811,607
8.2% Convertible Notes due 2022 | Shares issuable upon conversion of convertible notes
Antidilutive securities excluded from computation of EPS
Antidilutive securities excluded from the calculation of diluted net (loss) income per share		1,078,632	4,473,871
1.5% Convertible Senior Subordinated Notes due 2026 | Shares issuable upon conversion of convertible notes
Antidilutive securities excluded from computation of EPS
Antidilutive securities excluded from the calculation of diluted net (loss) income per share	11,942,152	11,942,152	11,942,152

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 260
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482662/260-10-50-1

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+ References

No definition available.

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