CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS (Tables)

9 Months Ended

Sep. 30, 2023

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

Schedule of cash and cash equivalents

As of September 30, 2023 and December 31, 2022, the Company’s cash and cash equivalents and short-term investments were composed of:

	September 30, 2023
	Unaudited
	Fair value level	Adjusted cost basis		Unrealized gains		Unrealized losses		Fair market value		Recorded basis		Cash and cash equivalents		Short-term investments (2)
Cash		$	8,636	$	—	$	—	$	8,636	$	8,636	$	8,636	$	—
Money market funds	Level 1	141,224		—		—		141,224		141,224		141,224		—
Certificate of deposits and term deposits	Level 2	163,820		—		—		163,820		163,820		5,000		158,820
HTM securities (1)
U.S. Treasury bills	Level 1	$	109,595	$	15	$	(14)	109,596		109,595		$	—	$	109,595
Government and governmental agencies	Level 2	$	24,596	$	—	$	(15)	24,581		24,596		$	—	$	24,596
Corporate debt securities	Level 2	$	473,377	$	83	$	(281)	473,179		473,377		$	—	$	473,377
		$	607,568	$	98	$	(310)	$	607,356	$	607,568	$	—	$	607,568
Total		$	921,248	$	98	$	(310)	$	921,036	$	921,248	$	154,860	$	766,388

	December 31, 2022
	Audited
	Fair value level	Adjusted cost basis		Unrealized gains		Unrealized losses		Fair market value		Recorded basis		Cash and cash equivalents		Short-term investments
Cash		$	9,697	$	—	$	—	$	9,697	$	9,697	$	9,697	$	—
Money market funds	Level 1	105,629		—		—		105,629		105,629		105,629		—
Certificate of deposits and term deposits	Level 2	316,946		—		—		316,946		316,946		—		316,946
HTM securities (1)
U.S. Treasury bills	Level 1	$	188,030	$	8	$	(540)	187,498		188,030		$	—	$	188,030
Government and governmental agencies	Level 2	$	44,357	$	12	$	(12)	44,357		44,357		$	—	$	44,357
Corporate debt securities	Level 2	$	304,766	$	1,066	$	(587)	305,245		304,766		$	—	$	304,766
		$	537,153	$	1,086	$	(1,139)	$	537,100	$	537,153	$	—	$	537,153
Total		$	969,425	$	1,086	$	(1,139)	$	969,372	$	969,425	$	115,326	$	854,099

(1)    Changes in fair value of held-to-maturity ("HTM") securities are presented for disclosure purposes as required by ASC 320 "Investments — Debt Securities" and are recorded as finance expenses only if the unrealized loss is identified as a credit loss.

(2)    Pursuant to a bank guaranty, $15,862 of short-term investments are pledged. See Note 4.

Schedule of amortized cost and recorded basis of T-bills in short-term Investments

As of September 30, 2023 and December 31, 2022, the Company’s cash and cash equivalents and short-term investments were composed of:

	September 30, 2023
	Unaudited
	Fair value level	Adjusted cost basis		Unrealized gains		Unrealized losses		Fair market value		Recorded basis		Cash and cash equivalents		Short-term investments (2)
Cash		$	8,636	$	—	$	—	$	8,636	$	8,636	$	8,636	$	—
Money market funds	Level 1	141,224		—		—		141,224		141,224		141,224		—
Certificate of deposits and term deposits	Level 2	163,820		—		—		163,820		163,820		5,000		158,820
HTM securities (1)
U.S. Treasury bills	Level 1	$	109,595	$	15	$	(14)	109,596		109,595		$	—	$	109,595
Government and governmental agencies	Level 2	$	24,596	$	—	$	(15)	24,581		24,596		$	—	$	24,596
Corporate debt securities	Level 2	$	473,377	$	83	$	(281)	473,179		473,377		$	—	$	473,377
		$	607,568	$	98	$	(310)	$	607,356	$	607,568	$	—	$	607,568
Total		$	921,248	$	98	$	(310)	$	921,036	$	921,248	$	154,860	$	766,388

	December 31, 2022
	Audited
	Fair value level	Adjusted cost basis		Unrealized gains		Unrealized losses		Fair market value		Recorded basis		Cash and cash equivalents		Short-term investments
Cash		$	9,697	$	—	$	—	$	9,697	$	9,697	$	9,697	$	—
Money market funds	Level 1	105,629		—		—		105,629		105,629		105,629		—
Certificate of deposits and term deposits	Level 2	316,946		—		—		316,946		316,946		—		316,946
HTM securities (1)
U.S. Treasury bills	Level 1	$	188,030	$	8	$	(540)	187,498		188,030		$	—	$	188,030
Government and governmental agencies	Level 2	$	44,357	$	12	$	(12)	44,357		44,357		$	—	$	44,357
Corporate debt securities	Level 2	$	304,766	$	1,066	$	(587)	305,245		304,766		$	—	$	304,766
		$	537,153	$	1,086	$	(1,139)	$	537,100	$	537,153	$	—	$	537,153
Total		$	969,425	$	1,086	$	(1,139)	$	969,372	$	969,425	$	115,326	$	854,099

(1)    Changes in fair value of held-to-maturity ("HTM") securities are presented for disclosure purposes as required by ASC 320 "Investments — Debt Securities" and are recorded as finance expenses only if the unrealized loss is identified as a credit loss.

(2)    Pursuant to a bank guaranty, $15,862 of short-term investments are pledged. See Note 4.

Schedule of available-for-sale securities reconciliation

As of September 30, 2023 and December 31, 2022, the Company’s cash and cash equivalents and short-term investments were composed of:

	September 30, 2023
	Unaudited
	Fair value level	Adjusted cost basis		Unrealized gains		Unrealized losses		Fair market value		Recorded basis		Cash and cash equivalents		Short-term investments (2)
Cash		$	8,636	$	—	$	—	$	8,636	$	8,636	$	8,636	$	—
Money market funds	Level 1	141,224		—		—		141,224		141,224		141,224		—
Certificate of deposits and term deposits	Level 2	163,820		—		—		163,820		163,820		5,000		158,820
HTM securities (1)
U.S. Treasury bills	Level 1	$	109,595	$	15	$	(14)	109,596		109,595		$	—	$	109,595
Government and governmental agencies	Level 2	$	24,596	$	—	$	(15)	24,581		24,596		$	—	$	24,596
Corporate debt securities	Level 2	$	473,377	$	83	$	(281)	473,179		473,377		$	—	$	473,377
		$	607,568	$	98	$	(310)	$	607,356	$	607,568	$	—	$	607,568
Total		$	921,248	$	98	$	(310)	$	921,036	$	921,248	$	154,860	$	766,388

	December 31, 2022
	Audited
	Fair value level	Adjusted cost basis		Unrealized gains		Unrealized losses		Fair market value		Recorded basis		Cash and cash equivalents		Short-term investments
Cash		$	9,697	$	—	$	—	$	9,697	$	9,697	$	9,697	$	—
Money market funds	Level 1	105,629		—		—		105,629		105,629		105,629		—
Certificate of deposits and term deposits	Level 2	316,946		—		—		316,946		316,946		—		316,946
HTM securities (1)
U.S. Treasury bills	Level 1	$	188,030	$	8	$	(540)	187,498		188,030		$	—	$	188,030
Government and governmental agencies	Level 2	$	44,357	$	12	$	(12)	44,357		44,357		$	—	$	44,357
Corporate debt securities	Level 2	$	304,766	$	1,066	$	(587)	305,245		304,766		$	—	$	304,766
		$	537,153	$	1,086	$	(1,139)	$	537,100	$	537,153	$	—	$	537,153
Total		$	969,425	$	1,086	$	(1,139)	$	969,372	$	969,425	$	115,326	$	854,099

(1)    Changes in fair value of held-to-maturity ("HTM") securities are presented for disclosure purposes as required by ASC 320 "Investments — Debt Securities" and are recorded as finance expenses only if the unrealized loss is identified as a credit loss.

(2)    Pursuant to a bank guaranty, $15,862 of short-term investments are pledged. See Note 4.