Cash and Cash Equivalents and Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2022

Investments, Debt and Equity Securities [Abstract]

Summary of Cash and Cash Equivalents and Marketable Securities

As of December 31, 2022 and 2021, cash and cash equivalents and marketable securities were comprised of the following:

	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
	(in thousands)
As at December 31, 2022
Cash and cash equivalents:
Cash	$	116,526	$	—	$	—		$	116,526
Money market funds		42,995		—		—			42,995
Total cash and cash equivalents	$	159,521	$	—	$	—		$	159,521
Marketable securities:
U.S. Treasury notes	$	58,641	$	1	$	(280	)	$	58,362
U.S. Treasury bills		126,207		4		(153	)		126,058
Total marketable securities	$	184,848	$	5	$	(433	)	$	184,420
As at December 31, 2021
Cash and cash equivalents:
Cash	$	331,892	$	—	$	—		$	331,892
Money market funds		2,535		—		—			2,535
Total cash and cash equivalents	$	334,427	$	—	$	—		$	334,427
Marketable securities:
U.S. Treasury notes	$	7,439	$	—	$	—		$	7,439
Total marketable securities	$	7,439	$	—	$	—		$	7,439