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Common stock registered share capital.

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Common stock registered share capital value

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Equity issuance costs.

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Estimated gross proceeds from issuance of common stock.

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Stamp taxes due on issuance of common stock.

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Share Capital - Additional Information (Detail) SFr / shares in Units, $ / shares in Units, $ in Thousands	1 Months Ended			6 Months Ended
	Feb. 29, 2024 USD ($) $ / shares	Jul. 31, 2021 USD ($)	Jan. 31, 2021 USD ($)	Jun. 30, 2024 USD ($) $ / shares	Jun. 30, 2023 USD ($)	Jun. 30, 2024 SFr / shares shares	Dec. 31, 2023 SFr / shares	Jun. 08, 2023 CHF (SFr) SFr / shares
Class of Stock [Line Items]
Common shares, nominal value \| (per share)	$ 71.5					SFr 0.03	SFr 0.03
Proceeds from issuance of common shares	$ 280,000			$ 279,733	$ 0
Common shares employee equity incentive plans \| shares						20,925,932
Received net proceeds	279,000
Stamp taxes due on issuance of common stock	$ 2,800
Bond [Member]
Class of Stock [Line Items]
Registered common shares \| shares						8,202,832
Common Shares [Member]
Class of Stock [Line Items]
Common shares, nominal value \| SFr / shares						SFr 0.03		SFr 0.03
Registered share capital \| shares						88,517,810
Capital Band [Member]
Class of Stock [Line Items]
Shares, Issued \| shares						14,830,592
Maximum [Member] \| Common Shares [Member]
Class of Stock [Line Items]
Common Stock Share Capital Value \| SFr								SFr 3,100,452.06
Sales Agreement With Jefferies LLC [Member] \| 2021 ATM [Member]
Class of Stock [Line Items]
Average issue price of common shares \| $ / shares				$ 139.28
Proceeds from issuance of common shares				$ 212,400
Equity issuance costs				2,900
Shares, Issued \| shares						1,500,000
Sales Agreement With Jefferies LLC [Member] \| Maximum [Member] \| 2021 ATM [Member]
Class of Stock [Line Items]
Aggregate estimated gross proceeds		$ 419,800	$ 600,000	$ 384,700