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Earnings/(loss) per share - Additional Information (Detail) - shares | 1 Months Ended | 12 Months Ended
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Jul. 30, 2022 | Dec. 31, 2022
Earnings per share [abstract] |  |
Description of conversion ratio |  | On February 8, 2019 the Company announced a change in the ratio of its American Depositary Receipts (ADRs) to ordinary shares, from 1 ADR representing 1 share to 1 ADR representing 5 shares.
Subscription of shares | 220,000 | 220,000

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- Definition Description of conversion ratio. + References No definition available. + Details
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- Definition Subscription of shares. + References No definition available. + Details
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