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Provisions (Details)
Dec. 31, 2021
Dec. 31, 2020
Worker' Profit-Sharing [Member]    
Provisions (Details) [Line Items]    
Percentage of distributions based on number of days working in preceding year 50.00%  
Percentage of proportionate annual salary levels 50.00%  
Worker' Profit-Sharing [Member] | Bottom of range [member]    
Provisions (Details) [Line Items]    
Percentage of employee profit sharing plan 8.00%  
Worker' Profit-Sharing [Member] | Top of range [member]    
Provisions (Details) [Line Items]    
Percentage of employee profit sharing plan 10.00%  
Rehabilitation Provision [Member] | Bottom of range [member]    
Provisions (Details) [Line Items]    
Risk-free discount rate percentage 0.12% 0.06%
Rehabilitation Provision [Member] | Top of range [member]    
Provisions (Details) [Line Items]    
Risk-free discount rate percentage 1.94% 1.65%