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RELATED PARTY TRANSACTIONS - Schedule of related party contributions by member (Details) - USD ($) $ in Thousands |  | 9 Months Ended
--- | --- | ---
Jun. 24, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Related Party Transaction [Line Items] |  |  |
Cash funding received from Illumina |  | $ 0 | $ 1,244,300
Illumina, Inc. |  |  |
Related Party Transaction [Line Items] |  |  |
Cash funding received from Illumina | $ 932,300 |  |
Related Party | Illumina, Inc. |  |  |
Related Party Transaction [Line Items] |  |  |
Cash funding received from Illumina |  |  | 1,244,300
Total contributions from member, net |  |  | $ 1,244,300

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