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Share-based Payment Arrangements - Summary of Outstanding Restricted Shares At Balance Sheet (Detail) - USISH option plans [member] | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
2019 restricted stocks [Member] |  |
Dislcosure of Range Exercise Prices of Outstanding Restricted Shares [Line Items] |  |
Range of Exercise Price Per Share | 12.7 | 13.2
Remaining Contractual Life (Years) | 2 years 3 months 18 days | 3 years 3 months 18 days
2020 restricted stocks [Member] |  |
Dislcosure of Range Exercise Prices of Outstanding Restricted Shares [Line Items] |  |
Remaining Contractual Life (Years) | 8 months 12 days | 1 year 8 months 12 days
2021 restricted stocks [Member] |  |
Dislcosure of Range Exercise Prices of Outstanding Restricted Shares [Line Items] |  |
Remaining Contractual Life (Years) | 1 year 8 months 12 days |

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