COMMITMENTS AND CONTINGENCIES (Details) - Segment Discontinued Operations - I-Mab Hong Kong - TJBio Hangzhou - USD ($) $ in Millions |
Feb. 06, 2024 |
Jan. 29, 2024 |
|---|---|---|
| COMMITMENT AND CONTINGENCIES | ||
| Exchange for extinguishment of the existing repurchase obligations | $ 183.0 | |
| Monetary claim by nonparticipating shareholders | $ 17.4 |