COLLABORATION INTEREST-BEARING ADVANCED FUNDING - Additional Information (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Disclosure Of Detailed Information About Borrowings [Line Items] | ||||
| Advanced funding principal balance increase (decrease) | $ (170.8) | |||
| Outstanding principal balance | $ 79.2 | 79.2 | ||
| Janssen | ||||
| Disclosure Of Detailed Information About Borrowings [Line Items] | ||||
| Interest bearing borrowings, funding advances | $ 250.0 | 250.0 | ||
| Interest accrued on funding advances | $ 77.2 | |||
| Interest rate margin percentage | 2.50% | 2.50% | ||
| Interest expense on borrowings | $ 3.9 | $ 4.5 | $ 8.1 | $ 9.1 |