v3.21.2

Cash, Cash Equivalents and Investments - Fair Values and Gross Unrealized Loss of Available-For-Sale Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	$ 45,951	$ 111,565
Gross Unrealized Loss	(19)	(23)
Fair Value	45,932	111,542
U.S. government securities
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	16,024	90,120
Gross Unrealized Loss	(10)	(14)
Fair Value	16,014	90,106
Corporate bonds and commercial paper
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	29,927	21,445
Gross Unrealized Loss	(9)	(9)
Fair Value	$ 29,918	$ 21,436

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- Definition

Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Less Than 12 Months, Amortized Cost

+ References

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
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