XML 28 R18.htm IDEA: XBRL DOCUMENT

Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2022

Marketable Securities [Abstract]

Summary of Marketable securities

Marketable securities consisted of the following as of March 31, 2022 and December 31, 2021 (in thousands):


		March 31, 2022
		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
Available-for-sale securities, short-term
Commercial paper		$	47,961			$	—			$	—			$	47,961
Corporate debt securities			15,373				—				(117	)			15,256
Asset-backed securities			8,077				—				(45	)			8,032
U.S. treasury securities			9,093				—				(16	)			9,077

Total available-for-sale securities, short-term			80,505				—				(178	)			80,326
Available-for-sale securities, long-term
Corporate debt securities			9,275				—				(227	)			9,048
Asset-backed securities			7,033				—				(107	)			6,926
U.S. treasury securities			11,985				—				(302	)			11,684

Total available-for-sale securities, long-term			28,294				—				(636	)			27,658

Total available-for-sale securities		$	108,798			$	—			$	(814	)		$	107,984


		December 31, 2021
		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
Available-for-sale securities, short-term
Commercial paper		$	47,939			$	—			$	—			$	47,939
Corporate debt securities			7,992				—				(11	)			7,981
Asset-backed securities			16,177				—				(22	)			16,155

Total available-for-sale securities, short-term			72,108				—				(33	)			72,075
Available-for-sale securities, long-term
Corporate debt securities			16,816				—				(103	)			16,713
Asset-backed securities			3,013				—				(25	)			2,988
U.S. treasury securities			11,988				—				(70	)			11,918

Total available-for-sale securities, long-term			31,817				—				(198	)			31,619

Total available-for-sale securities		$	103,925			$	—			$	(231	)		$	103,694