XML 28 R18.htm IDEA: XBRL DOCUMENT v3.20.2

Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2020

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

We measure cash, cash equivalents and short-term investments at fair value on a recurring basis. The fair values of such assets were as follows (in thousands):

						Fair Value Measurements at Reporting Date Using
		Balance at June 30, 2020				Quoted Prices in Active Markets for Identical Assets (Level 1)				Significant Other Observable Inputs (Level 2)				Significant Unobservable Inputs (Level 3)
Cash and money market funds		$	73,104			$	73,104			$	—			$	—
U.S. treasury bills and government agency obligations			100,869				100,869				—				—
U.S. corporate debt securities			52,716				—				52,716				—
Foreign corporate debt securities			23,736				—				23,736				—
U.S. commercial paper			18,968				—				18,968				—
Foreign commercial paper			31,449				—				31,449				—
Total		$	300,842			$	173,973			$	126,869			$	—

						Fair Value Measurements at Reporting Date Using
		Balance at December 31, 2019				Quoted Prices in Active Markets for Identical Assets (Level 1)				Significant Other Observable Inputs (Level 2)				Significant Unobservable Inputs (Level 3)
Cash and money market funds		$	56,931			$	56,931			$	—			$	—
U.S. treasury bills and government agency obligations			140,626				140,626				—				—
U.S. corporate debt securities			80,170				—				80,170				—
Foreign corporate debt securities			23,203				—				23,203				—
U.S. commercial paper			32,801				—				32,801				—
Foreign commercial paper			57,241				—				57,241				—
Total		$	390,972			$	197,557			$	193,415			$	—

X

- References

No definition available.

+ Details

Name:	us-gaap_FairValueDisclosuresAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- 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

+ Details

Name:	us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration