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Condensed Consolidated Statements of Shareholders' Equity (Parenthetical) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2021 USD ($) | Mar. 31, 2021 SFr / shares | Mar. 31, 2020 SFr / shares
Common shares, par value | SFr / shares |  | SFr 0.03 |
Stock Options [Member] |  |  |
Issuance costs | $ | $ 1.5 |  |
Common Shares [Member] |  |  |
Issuance costs | $ | $ 5.4 |  |
Common shares, par value | SFr / shares |  | SFr 0.03 | SFr 0.03

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