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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - SFr / shares	Sep. 30, 2025	Dec. 31, 2024
Statement of Financial Position [Abstract]
Common shares, par value (in CHF per share)	SFr 0.08	SFr 0.08
Common shares issued (in shares)	115,187,979	101,606,376
Common shares outstanding (in shares)	112,626,731	98,861,402
Treasury shares (in shares)	2,561,248	2,744,974

X

- Definition

Face amount or stated value per share of common stock.

+ References

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-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
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- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

+ References

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- Definition

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 946
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-Section S99
-Paragraph 2
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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-Section S99
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Number of previously issued common shares repurchased by the issuing entity and held in treasury.

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