REVENUE - Royalties and Milestone Revenue (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| CAMBIA | Canada | ||
| Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||
| Revenue recognized | $ 2.5 | $ 1.5 |