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Marketable Securities (Tables)

9 Months Ended

Sep. 30, 2022

Investments, Debt and Equity Securities [Abstract]

Summary of Marketable Securities Held

The following table summarizes the Company’s marketable securities held at September 30, 2022 (in thousands):

		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
Commercial paper		$	623,804			$	2			$	(2,471	)		$	621,335
Corporate notes			19,093				—				(172	)			18,921
U.S. Treasury securities			226,112				—				(1,792	)			224,320
U.S. Government securities			54,920				—				(241	)			54,679
Corporate equity securities			18,788				—				—				18,788
Total		$	942,717			$	2			$	(4,676	)		$	938,043

The following table summarizes the Company’s marketable securities held at December 31, 2021 (in thousands):

		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
Commercial paper		$	368,778			$	32			$	(67	)		$	368,743
Corporate notes			16,758				—				(15	)			16,743
Corporate equity securities			20,167				—				—				20,167
Total		$	405,703			$	32			$	(82	)		$	405,653

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

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