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Fair Value of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2019

Fair Value Disclosures [Abstract]

Schedule of Company's Classified Assets Measured at Fair Value on Recurring Basis

At September 30, 2019 and December 31, 2018, the Company has classified assets measured at fair value on a recurring basis as follows (in thousands):

		Fair Value Measurements at September 30, 2019
		September 30,				Quoted Prices in Active Markets for Identical Assets				Significant Other Observable Inputs				Significant Unobservable Inputs
Description		2019				(Level 1)				(Level 2)				(Level 3)
Money market funds (included in cash and cash equivalents)		$	16,691			$	16,691			$	—			$	—
Commercial paper (included in short-term investments)			36,205				—				36,205				—
Corporate debt securities (included short-term investments)			56,603				—				56,603				—
Corporate debt securities (included in long-term investments)			17,388				—				17,388				—
U.S. government agency securities and treasuries (included in long-term investments)			1,008				—				1,008				—
Total		$	127,895			$	16,691			$	111,204			$	—

		Fair Value Measurements at December 31, 2018
		December 31,				Quoted Prices in Active Markets for Identical Assets				Significant Other Observable Inputs				Significant Unobservable Inputs
Description		2018				(Level 1)				(Level 2)				(Level 3)
Money market funds (included in cash and cash equivalents)		$	265			$	265			$	—			$	—
Commercial paper (included in short-term investments)			57,453				—				57,453				—
Corporate debt securities (included in short-term investments)			50,052				—				50,052				—
U.S. government agency securities and treasuries (included in short-term investments)			3,972				1,987				1,985				—
Total		$	111,742			$	2,252			$	109,490			$	—

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- References

No definition available.

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- Definition

Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, 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://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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