CASH EQUIVALENTS AND MARKETABLE SECURITIES - Schedule of Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 1,492,617	$ 1,541,584
Gross Unrealized Gains	545	1,863
Gross Unrealized Losses	(3,317)	(2,218)
Fair Value	1,489,845	1,541,229
Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Fair Value	113,904	134,943
Marketable Securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	1,375,941	1,406,286
Money market funds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	113,904	132,037
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	113,904	132,037
Money market funds \| Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Fair Value	113,904	132,037
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	45,432	55,863
Gross Unrealized Gains	46	58
Gross Unrealized Losses	0	(9)
Fair Value	45,478	55,912
Certificates of deposit \| Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Fair Value	0	750
Certificates of deposit \| Marketable Securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	45,478	55,162
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	73,606	71,427
Gross Unrealized Gains	16	29
Gross Unrealized Losses	(49)	(19)
Fair Value	73,573	71,437
Commercial paper \| Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Fair Value	0	1,694
Commercial paper \| Marketable Securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	73,573	69,743
Corporate notes and bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	424,500	406,093
Gross Unrealized Gains	372	934
Gross Unrealized Losses	(701)	(931)
Fair Value	424,171	406,096
Corporate notes and bonds \| Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Fair Value	0	462
Corporate notes and bonds \| Marketable Securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	424,171	405,634
U.S. Treasuries
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	170,120	327,773
Gross Unrealized Gains	16	152
Gross Unrealized Losses	(185)	(34)
Fair Value	169,951	327,891
U.S. Treasuries \| Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Fair Value	0	0
U.S. Treasuries \| Marketable Securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	169,951	327,891
U.S. Government agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	665,055	548,391
Gross Unrealized Gains	95	690
Gross Unrealized Losses	(2,382)	(1,225)
Fair Value	662,768	547,856
U.S. Government agency securities \| Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Fair Value	0	0
U.S. Government agency securities \| Marketable Securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	$ 662,768	$ 547,856

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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