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Share-based Payment Arrangements - Summary of Outstanding Restricted Shares At Balance Sheet (Detail) - USISH option plans [member]
 12 Months Ended
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