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

3 Months Ended

Mar. 31, 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):


		March 31, 2022				December 31, 2021				March 31, 2021				December 31, 2020
Cash and cash equivalents		$	179,421			$	436,189			$	79,055			$	32,073
Restricted cash			214				219				226				237
Total cash, cash equivalents and restricted cash shown in the condensed consolidated statements of cash flows		$	179,635			$	436,408			$	79,281			$	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
March 31, 2022
Cash and cash equivalents:
Cash	$	8,386			$	-			$	-			$	8,386
Money market funds		146,046				-				-				146,046
Corporate debt securities		24,988				1				-				24,989
Total cash and cash equivalents		179,420				1				-				179,421
Marketable securities available-for-sale:
U.S. treasuries		25,087				-				(11	)			25,076
U.S. government agency securities		16,533				-				(14	)			16,519
Corporate debt securities		283,447				-				(1,247	)			282,200
Total marketable securities available-for-sale		325,067				-				(1,272	)			323,795
Total cash, cash equivalents and marketable securities	$	504,487			$	1			$	(1,272	)		$	503,216
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):


		March 31, 2022
		Amortized Cost				Estimated Fair Value
Mature in one year or less		$	325,067			$	323,795
Mature after one year through two years			-				-
		$	325,067			$	323,795