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Short-term Investments (Tables)

6 Months Ended

Jun. 30, 2020

Short Term Investments [Abstract]

Summary of Short-term Investments

The following is a summary of our short-term investments (in thousands):

		June 30, 2020
						Gross				Gross
		Amortized				Unrealized				Unrealized				Estimated
		Cost				Gains				Losses				Fair Value
U.S. treasury bills and government agency obligations		$	100,309			$	560			$	—			$	100,869
U.S. corporate debt securities			44,861				231				—				45,092
Foreign corporate debt securities			23,574				162				—				23,736
U.S. commercial paper			18,968				—				—				18,968
Foreign commercial paper			31,449				—				—				31,449
Total		$	219,161			$	953			$	—			$	220,114

		December 31, 2019
						Gross				Gross
		Amortized				Unrealized				Unrealized				Estimated
		Cost				Gains				Losses				Fair Value
U.S. treasury bills and government agency obligations		$	140,567			$	59			$	—			$	140,626
U.S. corporate debt securities			80,159				11				—				80,170
Foreign corporate debt securities			23,188				15				—				23,203
U.S. commercial paper			32,801				—				—				32,801
Foreign commercial paper			42,274				—				—				42,274
Total		$	318,989			$	85			$	—			$	319,074

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- Definition

Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: 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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- References

No definition available.

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