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Agreements - Roche (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Collaborative Agreements disclosures    
Non-cash royalty revenue related to sale of future royalties $ 2,364 $ 15,545
Roche | KADCYLA    
Collaborative Agreements disclosures    
Non-cash royalty revenue related to sale of future royalties $ 6,400 $ 15,500