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INVESTMENTS AND FAIR VALUE MEASUREMENTS - Narrative (Details) $ in Thousands |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 24, 2024 USD ($) | Apr. 30, 2019 | Dec. 29, 2024 USD ($) day fund | Sep. 29, 2024 USD ($) | Dec. 31, 2023 USD ($) | Oct. 01, 2023 USD ($) | Jan. 01, 2023 USD ($) | Oct. 02, 2022 USD ($)
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |
Short-term Investments |  |  | $ 93,000 |  | $ 6,000 |  |  |
Discontinued Operation Gain Loss On Disposal Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag |  |  | unrealized loss |  |  |  |  |
Strategic equity investments, without readily determinable fair values |  |  | $ 26,000 |  | 28,000 |  |  |
Revenue |  |  | $ 4,372,000 |  | 4,504,000 |  | $ 4,584,000 |
GRAIL |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |
Contingent value right, terms |  |  | 12 years |  |  |  |  |
Covered revenues of GRAIL, contingent consideration liability |  |  |  | $ 117,000 |  | $ 85,000 |  | $ 42,000
Payment for contingent consideration |  |  | $ 1,100 |  | 803 |  | 396 |
GRAIL | Payment Rights Of One Billion Each Twelve Years |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |
Contingent payment rights, first percentage |  |  | 2.50% |  |  |  |  |
Business acquisition, contingent value rights, revenue threshold |  |  | $ 1,000,000 |  |  |  |  |
GRAIL | Payment Rights Of Above One Billion Each Twelve Years |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |
Business acquisition, contingent value rights, revenue threshold |  |  | $ 1,000,000 |  |  |  |  |
Contingent payment rights, second percentage |  |  | 9.00% |  |  |  |  |
Helix Contingent Consideration |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |
Contingent consideration asset settlement |  |  | $ 83,000 |  |  |  |  |
Helix Holdings I, LLC |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |
Contingent value right, terms |  | 7 years |  |  |  |  |  |
Investee |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |
Revenue |  |  | $ 20,000 |  | 69,000 |  | 113,000 |
Venture Capital Investment Fund (the Fund) |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |
Number of venture capital investment funds | fund |  |  | 3 |  |  |  |  |
Equity method investments |  |  | $ 201,000 |  | 168,000 |  |  |
Unrealized gain (loss) on equity method investments |  |  | $ 5,000 |  | (33,000) |  | $ (25,000) |
GRAIL | Revenue Risk Premium |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |
Revenue risk premium |  |  | 0.09 |  |  |  |  |
GRAIL | Measurement Input, Calculation Trailing Period |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |
Revenue risk premium | day |  |  | 60 |  |  |  |  |
Spinoff | GRAIL |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |
GRAIL net assets | $ 2,738,000 |  |  |  |  |  |  |
Discontinued operation, equity method investment retained after disposal, ownership interest after disposal | 14.50% |  |  |  |  |  |  |
Loss on disposal of discontinued operation, net of tax |  |  | $ 309,000 |  |  |  |  |
Contingent consideration liabilities |  |  | 71,000 |  | 387,000 |  |  |
Contingent consideration, noncurrent |  |  | 70,000 |  | $ 385,000 |  |  |
Increase in 20% of revenue, increase in liability |  |  | 17,000 |  |  |  |  |
Decrease in 20% of revenue, decrease in liability |  |  | (18,000) |  |  |  |  |
Effect of change of additional 250 basis points, decrease in liability |  |  | (12,000) |  |  |  |  |
Effect of change of additional 250 basis points, increase in liability |  |  | $ 15,000 |  |  |  |  |
Short-Term Investments | Spinoff | GRAIL |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |
GRAIL net assets | $ 397,000 |  |  |  |  |  |  |

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