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INTANGIBLE ASSETS AND GOODWILL - Narrative (Details) - USD ($) | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2022 | Jun. 30, 2022 | Sep. 30, 2021 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Aug. 02, 2022 | Jan. 05, 2021
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Cost |  |  |  | $ 1,007,331,000 | $ 981,016,000 |  |  |
Finite-lived intangible assets, accumulated amortization |  |  |  | 366,935,000 | 274,776,000 |  |  |
Finite-lived Intangible assets, net |  |  |  | 640,396,000 | 706,240,000 |  |  |
Goodwill, impairment loss |  |  |  | 0 | 0 | $ 0 |  |
Thrive |  |  |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets |  |  |  |  |  |  |  | $ 1,250,000,000
Oncotype DX Genomic Prostate Score Test | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Cost |  |  |  |  |  |  | $ 59,000,000 |
Finite-lived intangible assets, accumulated amortization |  |  |  |  |  |  | 16,100,000 |
Finite-lived Intangible assets, net |  |  |  |  |  |  | $ 42,900,000 |
In-process research and development |  |  |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Impairment of long-lived assets |  |  | $ 20,200,000 |  |  |  |  |
Service Agreements [Member] |  |  |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Impairment of long-lived assets | $ 2,000,000 |  |  |  |  |  |  |
Developed Technology Rights [Member] |  |  |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Cost |  |  |  | 887,789,000 | 861,474,000 |  |  |
Finite-lived intangible assets, accumulated amortization |  |  |  | 328,543,000 | 245,527,000 |  |  |
Finite-lived Intangible assets, net |  |  |  | $ 559,246,000 | $ 615,947,000 |  |  |
Impairment of long-lived assets |  | $ 6,600,000 |  |  |  |  |  |

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