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BUSINESS COMBINATIONS AND ASSET ACQUISITIONS - Schedule of Assets Acquired and Liabilities Assumed From Paradigm Diagnostics Acquisition (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2021 | Mar. 03, 2021 | Dec. 31, 2020 | Mar. 03, 2020 | Dec. 31, 2019
Business Acquisition [Line Items] |  |  |  |  |
Goodwill | $ 2,242,535 |  | $ 1,237,672 |  | $ 1,203,197
Fair Value, Adjustment Disclosure [Abstract] |  |  |  |  |
Net operating assets | 0 |  |  |  |
Goodwill | 1,862 |  |  |  |
Developed technology | 0 |  |  |  |
Net operating liabilities | $ 1,862 |  |  |  |
Paradigm & Viomics |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Net operating assets |  | $ 5,373 |  | $ 6,133 |
Goodwill |  | 30,431 |  | 29,695 |
Developed technology |  | 7,800 |  | 7,800 |
Net operating liabilities |  | (3,203) |  | (3,123) |
Net assets acquired |  | 40,401 |  | $ 40,505 |
Fair Value, Adjustment Disclosure [Abstract] |  |  |  |  |
Net operating assets |  | (760) |  |  |
Goodwill |  | 736 |  |  |
Developed technology |  | 0 |  |  |
Net operating liabilities |  | (80) |  |  |
Total purchase price |  | $ (104) |  |  |

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