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Available-for-Sale Investments (Tables)

3 Months Ended

Mar. 31, 2020

Investments Debt And Equity Securities [Abstract]

Summary of Available-for-Sale Securities Held

The following tables summarize the available-for-sale securities held at March 31, 2020 and December 31, 2019 (in thousands):

March 31, 2020		Amortized cost				Gross unrealized gains				Gross unrealized losses				Fair Value
Commercial paper		$	16,356			$	48			$	—			$	16,404
Corporate debt securities			70,882				45				(49	)			70,878
U.S. government agency securities			7,503				11				—				7,514
Total		$	94,741			$	104			$	(49	)		$	94,796
December 31, 2019		Amortized cost				Gross unrealized gains				Gross unrealized losses				Fair Value
Commercial paper		$	20,484			$	18			$	(1	)		$	20,501
Corporate debt securities			71,288				96				(1	)			71,383
U.S. government agency securities			9,005				2				(2	)			9,005
Total		$	100,777			$	116			$	(4	)		$	100,889

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Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.

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