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Contract revenues, Anti-Abeta Antibody in AD - 2006 Agreement with Genentech (Details) SFr in Thousands, $ in Millions | 12 Months Ended | 36 Months Ended | 194 Months Ended |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2022 CHF (SFr) | Dec. 31, 2021 CHF (SFr) | Dec. 31, 2020 CHF (SFr) | Dec. 31, 2022 USD ($) | Dec. 31, 2022 CHF (SFr) payment | Dec. 31, 2022 USD ($) payment | Dec. 31, 2022 USD ($) | Mar. 31, 2017 CHF (SFr) | Mar. 31, 2017 USD ($)
Contract revenues |  |  |  |  |  |  |  |  |
Revenue from contracts with customers | SFr | SFr 3,935 | SFr 0 | SFr 15,431 |  |  |  |  |  |
Anti-Abeta Antibody in AD [Member] | 2006 Agreement with Genentech [Member] |  |  |  |  |  |  |  |  |
Contract revenues |  |  |  |  |  |  |  |  |
Period to provide notice of termination of agreement | 3 months |  |  |  |  |  |  |  |
Cumulative payments received | SFr 70,100 |  |  |  | SFr 70,100 |  | $ 65 |  |
Milestone payment received |  |  |  |  | SFr 38,200 | $ 40 |  |  |
Up-front consideration received |  |  |  |  |  |  |  | SFr 31,600 | $ 25
Number of milestone payments received | payment |  |  |  |  | 3 | 3 |  |  |
Revenue from contracts with customers | $ |  |  |  | $ 0 |  |  |  |  |
Collaborative agreement, upfront payments received |  |  |  |  | SFr 31,600 | $ 25 |  |  |
Collaborative agreement, Notice of contract termination period in case of material breach of contract | 90 days |  |  |  |  |  |  |  |
Anti-Abeta Antibody in AD [Member] | 2006 Agreement with Genentech [Member] | Clinical milestones achieved prior to 1 January 2017 |  |  |  |  |  |  |  |  |
Contract revenues |  |  |  |  |  |  |  |  |
Milestone payment received |  |  |  |  | 38,200 | $ 40 |  |  |
Anti-Abeta Antibody in AD [Member] | 2006 Agreement with Genentech [Member] | Minimum |  |  |  |  |  |  |  |  |
Contract revenues |  |  |  |  |  |  |  |  |
Total potential collaboration agreement value | SFr 317,000 |  |  |  | 317,000 |  | 340 |  |
Total potential collaboration agreement value remaining | SFr 256,400 |  |  |  | SFr 256,400 |  | $ 275 |  |

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- Definition Period of time that notice is required to be given for cancellation of the collaborative agreement contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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