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REVENUE - Royalties and Milestone Revenue (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]      
Contract liabilities $ 0.1   $ 0.3
Increase in contract liability 0.3    
CAMBIA | Canada      
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]      
Revenue recognized 0.5 $ 0.4  
Royalties and milestones      
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]      
Revenue recognized $ 0.5