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Cash, Cash Equivalents and Short-Term Investments - Schedule of Short-Term Investments (Details) $ in Thousands	Dec. 31, 2020 USD ($)
Cash And Cash Equivalents And Short Term Investments [Line Items]
Short-term investments in continuous unrealized loss position for 12 months or less, Estimated fair value	$ 3,399
Short-term investments in continuous unrealized loss position for 12 months or less, Unrealized losses	(2)
US Treasury Securities
Cash And Cash Equivalents And Short Term Investments [Line Items]
Short-term investments in continuous unrealized loss position for 12 months or less, Estimated fair value	1,218
Short-term investments in continuous unrealized loss position for 12 months or less, Unrealized losses	(1)
Corporate Debt Securities
Cash And Cash Equivalents And Short Term Investments [Line Items]
Short-term investments in continuous unrealized loss position for 12 months or less, Estimated fair value	1,428
Short-term investments in continuous unrealized loss position for 12 months or less, Unrealized losses	(1)
Asset-backed Securities
Cash And Cash Equivalents And Short Term Investments [Line Items]
Short-term investments in continuous unrealized loss position for 12 months or less, Estimated fair value	753
Short-term investments in continuous unrealized loss position for 12 months or less, Unrealized losses	$ 0

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Cash and cash equivalents and short-term investments.

+ References

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ 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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-Publisher FASB
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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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