Cash and cash equivalents accumulated gross unrealized gain before tax.

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Cash and cash equivalents accumulated gross unrealized loss before tax.

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Cash equivalents and available for sale securities.

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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CASH EQUIVALENTS AND MARKETABLE SECURITIES - Summary of Cash Equivalents and Available-for-Sale Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
ASSETS
Cash and cash equivalents, at carrying value, total	$ 66,830	$ 100,444	$ 117,705	$ 178,872
Available-for-sale securities, amortized cost	115,852	207,923
Available-for-sale securities, gross unrealized gains	0	28
Available-for-sale securities, gross unrealized (Losses)	(544)	(918)
Available-for-sale securities, estimated fair value	115,308	207,033
Total cash equivalents and available-for-sale securities, amortized cost	124,020	258,743
Total cash equivalents and available-for-sale securities, gross unrealized gains	0	28
Total cash equivalents and available-for-sale securities, gross unrealized (losses)	(544)	(918)
Total cash equivalents and available-for-sale securities, estimated fair value	123,476	257,853
Money market funds
ASSETS
Cash and cash equivalents, at carrying value, total	8,168	50,820
Cash equivalents, gross unrealized gains	0	0
Cash and cash equivalents accumulated gross unrealized loss before tax	0	0
Cash equivalents, estimated fair value	8,168	50,820
Cash equivalents:
ASSETS
Cash and cash equivalents, at carrying value, total	8,168	50,820
Cash equivalents, gross unrealized gains	0	0
Cash and cash equivalents accumulated gross unrealized loss before tax	0	0
Cash equivalents, estimated fair value	8,168	50,820
U.S. government-sponsored entity debt securities
ASSETS
Available-for-sale securities, amortized cost	32,685	18,710
Available-for-sale securities, gross unrealized gains	0	0
Available-for-sale securities, gross unrealized (Losses)	(389)	(293)
Available-for-sale securities, estimated fair value	32,296	18,417
Commercial paper securities
ASSETS
Available-for-sale securities, amortized cost	41,881	101,336
Available-for-sale securities, gross unrealized gains	0	22
Available-for-sale securities, gross unrealized (Losses)	(43)	(193)
Available-for-sale securities, estimated fair value	41,838	101,165
Corporate debt securities
ASSETS
Available-for-sale securities, amortized cost		11,760
Available-for-sale securities, gross unrealized gains		0
Available-for-sale securities, gross unrealized (Losses)		(90)
Available-for-sale securities, estimated fair value		11,670
Asset-backed securities
ASSETS
Available-for-sale securities, amortized cost	10,557	24,970
Available-for-sale securities, gross unrealized gains	0	2
Available-for-sale securities, gross unrealized (Losses)	(52)	(180)
Available-for-sale securities, estimated fair value	10,505	24,792
U.S. treasury bills
ASSETS
Available-for-sale securities, amortized cost	5,598	7,950
Available-for-sale securities, gross unrealized gains	0	0
Available-for-sale securities, gross unrealized (Losses)	(25)	(12)
Available-for-sale securities, estimated fair value	5,573	7,938
Certificates of deposit
ASSETS
Available-for-sale securities, amortized cost	25,131	37,599
Available-for-sale securities, gross unrealized gains	0	4
Available-for-sale securities, gross unrealized (Losses)	(35)	(142)
Available-for-sale securities, estimated fair value	$ 25,096	37,461
Agency bonds
ASSETS
Available-for-sale securities, amortized cost		5,598
Available-for-sale securities, gross unrealized gains		0
Available-for-sale securities, gross unrealized (Losses)		(8)
Available-for-sale securities, estimated fair value		$ 5,590