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Risk and Capital Management - Summary of Liquidity Indicators (Detail) | Dec. 31, 2021 | Dec. 31, 2020
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Disclosure of liquidity risk indicators [abstract] |  |
Net assets / customers funds within 30 days | 56.50% | 85.20%
Net assets / total customers funds | 21.40% | 31.60%
Net assets / total financial assets | 16.20% | 23.40%

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