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

3 Months Ended

Mar. 31, 2023

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

Schedule of Cash and Cash Equivalents

the Company’s cash and cash equivalents and short-term investments were composed of:

	March 31, 2023
	Unaudited
	Fair value level	Adjusted cost basis		Unrealized gains		Unrealized losses		Fair market value		Recorded basis		Cash and cash equivalents		Short-term investments
Cash		$	11,602	$	—	$	—	$	11,602	$	11,602	$	11,602	$	—
Money market funds	Level 1	132,636		—		—		132,636		132,636		132,636		—
Certificate of deposits and term deposits	Level 2	295,804		—		—		295,804		295,804		2,000		293,804
HTM securities (1)
U.S. Treasury bills	Level 1	$	166,659	$	8	$	(272)	166,395		166,659		$	—	$	166,659
Government and governmental agencies	Level 2	$	26,512	$	95	$	(9)	26,598		26,512		$	—	$	26,512
Corporate debt securities	Level 2	$	324,822	$	1,570	$	(1,186)	325,206		324,822		$	39,725	$	285,097
		$	517,993	$	1,673	$	(1,467)	$	518,199	$	517,993	$	39,725	$	478,268
Total		$	958,035	$	1,673	$	(1,467)	$	958,241	$	958,035	$	185,963	$	772,072

	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 and are recorded as finance expenses only if the unrealized loss is identified as a credit loss.

Schedule of Available-for-Sale Securities Reconciliation

the Company’s cash and cash equivalents and short-term investments were composed of:

	March 31, 2023
	Unaudited
	Fair value level	Adjusted cost basis		Unrealized gains		Unrealized losses		Fair market value		Recorded basis		Cash and cash equivalents		Short-term investments
Cash		$	11,602	$	—	$	—	$	11,602	$	11,602	$	11,602	$	—
Money market funds	Level 1	132,636		—		—		132,636		132,636		132,636		—
Certificate of deposits and term deposits	Level 2	295,804		—		—		295,804		295,804		2,000		293,804
HTM securities (1)
U.S. Treasury bills	Level 1	$	166,659	$	8	$	(272)	166,395		166,659		$	—	$	166,659
Government and governmental agencies	Level 2	$	26,512	$	95	$	(9)	26,598		26,512		$	—	$	26,512
Corporate debt securities	Level 2	$	324,822	$	1,570	$	(1,186)	325,206		324,822		$	39,725	$	285,097
		$	517,993	$	1,673	$	(1,467)	$	518,199	$	517,993	$	39,725	$	478,268
Total		$	958,035	$	1,673	$	(1,467)	$	958,241	$	958,035	$	185,963	$	772,072

	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 and are recorded as finance expenses only if the unrealized loss is identified as a credit loss.

Schedule of Amortized Cost and Recorded Basis of T-bills in Short-Term Investments

the Company’s cash and cash equivalents and short-term investments were composed of:

	March 31, 2023
	Unaudited
	Fair value level	Adjusted cost basis		Unrealized gains		Unrealized losses		Fair market value		Recorded basis		Cash and cash equivalents		Short-term investments
Cash		$	11,602	$	—	$	—	$	11,602	$	11,602	$	11,602	$	—
Money market funds	Level 1	132,636		—		—		132,636		132,636		132,636		—
Certificate of deposits and term deposits	Level 2	295,804		—		—		295,804		295,804		2,000		293,804
HTM securities (1)
U.S. Treasury bills	Level 1	$	166,659	$	8	$	(272)	166,395		166,659		$	—	$	166,659
Government and governmental agencies	Level 2	$	26,512	$	95	$	(9)	26,598		26,512		$	—	$	26,512
Corporate debt securities	Level 2	$	324,822	$	1,570	$	(1,186)	325,206		324,822		$	39,725	$	285,097
		$	517,993	$	1,673	$	(1,467)	$	518,199	$	517,993	$	39,725	$	478,268
Total		$	958,035	$	1,673	$	(1,467)	$	958,241	$	958,035	$	185,963	$	772,072

	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 and are recorded as finance expenses only if the unrealized loss is identified as a credit loss.

Schedule of Debt Securities, Available-for-Sale

Debt securities with continuous unrealized losses for less than 12 months and their related fair values were as follows:

	March 31, 2023		December 31, 2022
	Unaudited		Audited
	Less than 12 months		Less than 12 months
	Fair value	Unrealized loss	Fair value	Unrealized loss
U.S. Treasury bills	116,323	(272)	162,813	(540)
Government and governmental agencies	1,597	(9)	38,477	(12)
Corporate debt securities	224,483	(1,186)	162,085	(587)
Total	342,403	(1,467)	363,375	(1,139)