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Share Capital - Schedule of Share Capital (Detail) - shares | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Class of Stock [Line Items] |  |
Registered share capital | 80,321,227 | 75,133,951
Authorized share capital | 145,364,335 | 115,172,786
Employee Benefit Plans [Member] |  |
Class of Stock [Line Items] |  |
Conditional share capital - Bonds or similar debt instruments | 20,806,433 | 17,493,709
Bonds or Similar Debt Instruments [Member] |  |
Class of Stock [Line Items] |  |
Conditional share capital - Bonds or similar debt instruments | 4,919,700 | 4,919,700
Swiss Law [Member] |  |
Class of Stock [Line Items] |  |
Authorized share capital | 39,316,975 | 17,625,426

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