Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Employee Benefits Expense - Summary of Average Size of Group's Workforce (Details)

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Employee Benefits Expense - Summary of Average Size of Group's Workforce (Details) - Employed
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Employee Benefits Expense [Line Items]      
Total Workforce 4,461 4,044 3,825
Executives      
Employee Benefits Expense [Line Items]      
Total Workforce 51 42 37
Managers      
Employee Benefits Expense [Line Items]      
Total Workforce 126 113 124
Employees      
Employee Benefits Expense [Line Items]      
Total Workforce 4,284 3,889 3,664