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Short-term marketable securities (Tables)

3 Months Ended

Mar. 31, 2021

Short-term marketable securities

Summary of short-term marketable securities


		March 31, 2021
		Amortized cost			Gross unrealized gains			Gross unrealized losses			Fair value
Money market funds		$	162,416		$	—		$	—		$	162,416
Commercial paper			33,976			—			—			33,976
Corporate debt securities			28,050			—			(2)			28,048
		$	224,442		$	—		$	(2)		$	224,440

Cash equivalents											$	162,416
Short-term marketable securities												62,024
											$	224,440

		December 31, 2020
		Amortized cost			Gross unrealized gains			Gross unrealized losses			Fair value
Money market funds		$	158,023		$	—		$	—		$	158,023
Commercial paper			47,955			—			—			47,955
Corporate debt securities			33,193			—			(3)			33,190
		$	239,171		$	—		$	(3)		$	239,168

Cash equivalents											$	158,023
Short-term marketable securities												81,145
											$	239,168