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Fair Value of Financial Instruments Including Cash, Cash Equivalents, and Investments (Tables)

9 Months Ended

Sep. 30, 2021

Fair Value Disclosures [Abstract]

Schedule of Fair Value Levels, Assets Measured at Fair Value on Recurring Basis

The following tables present, for each of the fair value levels, the Company’s assets that are measured at fair value on a recurring basis at September 30, 2021 and at December 31, 2020:

		At September 30, 2021
		Quoted Prices in Active Markets for Identical Assets (Level 1 Inputs)				Significant Other Observable Inputs (Level 2 Inputs)				Significant Unobservable Inputs (Level 3 Inputs)				Total
Cash equivalents:
Money market funds		$	167,521			$	—			$	—			$	167,521
Investments:
Certificates of deposit			—				90,000				—				90,000
Total		$	167,521			$	90,000			$	—			$	257,521

		At December 31, 2020
		Quoted Prices in Active Markets for Identical Assets (Level 1 Inputs)				Significant Other Observable Inputs (Level 2 Inputs)				Significant Unobservable Inputs (Level 3 Inputs)				Total
Cash equivalents:
Money market funds		$	112,431			$	—			$	—			$	112,431
Investments:
Certificates of deposit			—				100,000				—				100,000
Total		$	112,431			$	100,000			$	—			$	212,431

Schedule of Investments

The following is a summary of investments as of September 30, 2021 and December 31, 2020, respectively:

		At September 30, 2021
		Amortized Cost				Gross Unrealized Gains				Gross  Unrealized  Losses				Estimated Fair Value
Investments:
Certificates of deposit due in    one year or less		$	90,000			$	—			$	—			$	90,000
Total		$	90,000			$	—			$	—			$	90,000

		At December 31, 2020
		Amortized Cost				Gross Unrealized Gains				Gross  Unrealized  Losses				Estimated Fair Value
Investments:
Certificates of deposit due in    one year or less		$	100,000			$	—			$	—			$	100,000
Total		$	100,000			$	—			$	—			$	100,000

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- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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- Definition

Tabular disclosure of investment.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 325
-URI http://asc.fasb.org/topic&trid=2197064

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-URI http://asc.fasb.org/topic&trid=75115024

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-URI http://asc.fasb.org/topic&trid=2196928

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-URI http://asc.fasb.org/topic&trid=2196965

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