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Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2019

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on a Recurring Basis

There were no transfers in or out of Level 1 or 2 during the periods presented. The following tables present the fair value hierarchy for assets and liabilities measured at fair value on a recurring basis as of June 30, 2019 and December 31, 2018 (in thousands):

		June 30, 2019
		Level 1				Level 2				Level 3				Total
Financial assets:
Money market funds(1)		$	16,858			$	—			$	—			$	16,858
U.S. government agency securities(2)			57,904								—				57,904
Federal agency securities(2)			—				18,683				—				18,683
Restricted cash (money market funds)			50				—				—				50
Total financial assets		$	74,812			$	18,683			$	—			$	93,495

(1) Included in cash and cash equivalents on accompanying condensed consolidated balance sheets.

(2) Included in short-term investments on accompanying condensed consolidated balance sheets and are classified as available-for-sale securities.

		December 31, 2018
		Level 1				Level 2				Level 3				Total
Financial assets:
Money market funds(1)		$	29,090			$	—			$	—			$	29,090
Federal agency securities(1)			—				999				—				999
U.S. Treasury securities(2)			74,139												74,139
Federal agency securities(2)							14,775				—				14,775
Restricted cash (money market funds)			50				—				—				50
Total financial assets		$	103,279			$	15,774			$	—			$	119,053

(1) Included in cash and cash equivalents on accompanying condensed consolidated balance sheets.

(2) Included in short-term investments on accompanying condensed consolidated balance sheets and are classified as available-for-sale securities.

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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=99377789&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 1
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19190-110258

Reference 3: 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=99377789&loc=d3e19207-110258

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X

- References

No definition available.

+ Details

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