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FINANCIAL INSTRUMENTS - Schedule of Cash, Cash Equivalents and Available-for-Sale Securities by Significant Investment Category (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2024 | Dec. 31, 2023
Schedule of Available-for-sale Securities [Line Items] |  |  |
Amortized Cost | $ 1,783,242 | $ 1,683,827 |
Gross Unrealized Gains | 814 | 4,388 |
Gross Unrealized Losses | (2,622) | (3,270) |
Aggregate Fair Value | 1,781,434 | 1,684,945 |
Cash and Cash Equivalents | 972,150 | 755,127 | [1]
Short-term marketable securities | 252,201 | 318,683 | [1]
Long-term marketable securities | $ 557,083 | $ 611,135 | [1]
Maximum |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Short term marketable securities maturity period | 1 year | 1 year |
Long term marketable securities maturity period | 5 years | 5 years |
Minimum |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Long term marketable securities maturity period | 1 year | 1 year |
Level 1: |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Cash | $ 285,666 | $ 229,676 |
Cash, aggregate fair value | 285,666 | 229,676 |
Level 2: |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Amortized Cost | 1,497,576 | 1,454,151 |
Gross Unrealized Gains | 814 | 4,388 |
Gross Unrealized Losses | (2,622) | (3,270) |
Aggregate Fair Value | 1,495,768 | 1,455,269 |
Cash and Cash Equivalents | 686,484 | 525,451 |
Short-term marketable securities | 252,201 | 318,683 |
Long-term marketable securities | 557,083 | 611,135 |
Level 2: | Money market instruments |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Amortized Cost | 676,505 | 499,483 |
Gross Unrealized Gains | 0 | 0 |
Gross Unrealized Losses | 0 | 0 |
Aggregate Fair Value | 676,505 | 499,483 |
Cash and Cash Equivalents | 676,505 | 499,483 |
Short-term marketable securities | 0 | 0 |
Long-term marketable securities | 0 | 0 |
Level 2: | Corporate debt securities |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Amortized Cost | 537,626 | 587,896 |
Gross Unrealized Gains | 670 | 3,476 |
Gross Unrealized Losses | (1,460) | (1,996) |
Aggregate Fair Value | 536,836 | 589,376 |
Cash and Cash Equivalents | 0 | 0 |
Short-term marketable securities | 162,959 | 193,251 |
Long-term marketable securities | 373,877 | 396,125 |
Level 2: | U.S. government agency securities |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Amortized Cost | 184,487 | 251,952 |
Gross Unrealized Gains | 39 | 556 |
Gross Unrealized Losses | (966) | (1,140) |
Aggregate Fair Value | 183,560 | 251,368 |
Cash and Cash Equivalents | 9,979 | 19,976 |
Short-term marketable securities | 88,310 | 111,343 |
Long-term marketable securities | 85,271 | 120,049 |
Level 2: | Commercial paper |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Amortized Cost |  | 20,076 |
Gross Unrealized Gains |  | 5 |
Gross Unrealized Losses |  | 0 |
Aggregate Fair Value |  | 20,081 |
Cash and Cash Equivalents |  | 5,992 |
Short-term marketable securities |  | 14,089 |
Long-term marketable securities |  | 0 |
Level 2: | Asset-backed securities |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Amortized Cost | 98,958 | 94,744 |
Gross Unrealized Gains | 105 | 351 |
Gross Unrealized Losses | (196) | (134) |
Aggregate Fair Value | 98,867 | 94,961 |
Cash and Cash Equivalents |  | 0 |
Short-term marketable securities | 932 | 0 |
Long-term marketable securities | $ 97,935 | $ 94,961 |
[1] | (1)December 31, 2023 balances were derived from the audited Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, filed with the SEC on February 26, 2024.

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