Investments (Tables)

12 Months Ended

Dec. 31, 2021

Investments, Debt and Equity Securities [Abstract]

Schedule of Short-Term Investments

The following tables summarize the Company’s short-term investments (in thousands):

		As of December 31, 2021
	Maturity	Amortized cost		Gross unrealized gains		Gross unrealized losses		Estimated fair value
Corporate debt securities	2 years or less	$	236,170	$	36	$	(248)	$	235,958
Commercial paper	1 year or less	621,947		127		(95)		621,979
U.S. Agency bonds	1 years or less	58,092		—		—		58,092
U.S. Treasury bills	2 years or less	162,500		—		(272)		162,228
		$	1,078,709	$	163	$	(615)	$	1,078,257

		As of December 31, 2020
	Maturity	Amortized cost		Gross unrealized gains		Gross unrealized losses		Estimated fair value
Corporate debt securities	2 years or less	$	130,814	$	160	$	(4)	$	130,970
Commercial paper	1 year or less	240,725		58		(18)		240,765
U.S. Agency bonds	2 years or less	83,227		37		(1)		83,263
U.S. Treasury bills	2 years or less	49,539		10		(3)		49,546
		$	504,305	$	265	$	(26)	$	504,544