CASH EQUIVALENTS AND MARKETABLE SECURITIES - Schedule of Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 1,339,774	$ 969,740
Gross Unrealized Gains	26	0
Gross Unrealized Losses	(13,495)	(2,859)
Fair Value	1,326,305	966,881
Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Fair Value	246,592	69,546
Marketable Securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	1,079,713	897,335
Money market funds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	182,559	35,789
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	182,559	35,789
Money market funds \| Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Fair Value	182,559	35,789
Money market funds \| Marketable Securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	0	0
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	21,040	16,001
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(136)	(2)
Fair Value	20,904	15,999
Certificates of deposit \| Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Fair Value	0	6,000
Certificates of deposit \| Marketable Securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	20,904	9,999
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	119,751	215,964
Gross Unrealized Gains	2	0
Gross Unrealized Losses	(201)	(114)
Fair Value	119,552	215,850
Commercial paper \| Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Fair Value	15,231	26,997
Commercial paper \| Marketable Securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	104,321	188,853
Corporate notes and bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	171,874	199,244
Gross Unrealized Gains	5	0
Gross Unrealized Losses	(3,943)	(872)
Fair Value	167,936	198,372
Corporate notes and bonds \| Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Fair Value	2,924	760
Corporate notes and bonds \| Marketable Securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	165,012	197,612
U.S. Treasuries
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	282,489	14,999
Gross Unrealized Gains	19	0
Gross Unrealized Losses	(189)	(1)
Fair Value	282,319	14,998
U.S. Treasuries \| Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Fair Value	45,878	0
U.S. Treasuries \| Marketable Securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	236,441	14,998
U.S. Government agencies
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	562,061	487,743
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(9,026)	(1,870)
Fair Value	553,035	485,873
U.S. Government agencies \| Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Fair Value	0	0
U.S. Government agencies \| Marketable Securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	$ 553,035	$ 485,873

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).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563

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Amount, before tax, of unrealized loss 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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563

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Amortized cost excluding accrued interest, after allowance for credit loss, of 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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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

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Amount excluding accrued interest, of 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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