Cash, Cash Equivalents, Restricted Cash and Marketable Securities (Tables)

9 Months Ended

Sep. 30, 2022

Cash, Cash Equivalents, and Short-Term Investments [Abstract]

Reconciliation of Cash, Cash Equivalents and Restricted Cash

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the condensed consolidated balance sheets that sum to the total of the same amounts shown in the condensed consolidated statements of cash flows (in thousands):

	September 30, 2022		December 31, 2021		September 30, 2021		December 31, 2020
Cash and cash equivalents	$	198,576	$	436,189	$	246,351	$	32,073
Restricted cash		189		219		224		237
Total cash, cash equivalents and restricted cash shown    in the condensed consolidated statements of cash flows	$	198,765	$	436,408	$	246,575	$	32,310

Summary of Cash, Cash Equivalents and Marketable Securities

Cash, cash equivalents and marketable securities consist of the following (in thousands):

	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value
September 30, 2022
Cash and cash equivalents:
Cash	$	38,612	$	-	$	-		$	38,612
Money market funds		159,964		-		-			159,964
Total cash and cash equivalents		198,576		-		-			198,576
Marketable securities available-for-sale:
U.S. treasuries		41,281		-		(338	)		40,943
U.S. government agency securities		34,246		-		(219	)		34,027
Corporate debt securities		314,679		-		(1,739	)		312,940
Total marketable securities available-for-sale		390,206		-		(2,296	)		387,910
Total cash, cash equivalents and marketable securities	$	588,782	$	-	$	(2,296	)	$	586,486
December 31, 2021
Cash and cash equivalents:
Cash	$	6,995	$	-	$	-		$	6,995
Money market funds		429,194		-		-			429,194
Total cash and cash equivalents		436,189		-		-			436,189
Marketable securities available-for-sale:
U.S. treasuries		4,005		-		(1	)		4,004
U.S. government agency securities		26,555		-		(7	)		26,548
Corporate debt securities		79,200		9		-			79,209
Total marketable securities available-for-sale		109,760		9		(8	)		109,761
Total cash, cash equivalents and marketable securities	$	545,949	$	9	$	(8	)	$	545,950

Maturities of Marketable Securities Available-for-Sale

The maturities of our marketable securities available-for-sale are as follows (in thousands):

	September 30, 2022
	Amortized Cost		Estimated Fair Value
Mature in one year or less	$	375,208	$	372,999
Mature after one year through two years		14,998		14,911
	$	390,206	$	387,910