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Summary of Significant Accounting Policies - Antidilutive Securities (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Anti-dilutive securities
Anti-dilutive securities excluded from computation of earnings per share	8,827	4,940	4,007
Stock options
Anti-dilutive securities
Anti-dilutive securities excluded from computation of earnings per share	2,951	4,399	3,616
Restricted Stock Units (RSUs) [Member]
Anti-dilutive securities
Anti-dilutive securities excluded from computation of earnings per share	740	526	365
ESPP
Anti-dilutive securities
Anti-dilutive securities excluded from computation of earnings per share	11	15	26
Convertible senior note
Anti-dilutive securities
Anti-dilutive securities excluded from computation of earnings per share	5,125

X

- 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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

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- Definition

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+ References

No definition available.

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