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Labor Union Contracts (Details) - Unionized employees concentration risk
6 Months Ended
Jun. 30, 2022
Total number of employees  
Concentration risk  
Concentration risk, percent 22.00%
Workforce subject to collective bargaining arrangements that expired  
Concentration risk  
Concentration risk, percent 0.00%
Workforce subject to collective bargaining arrangements expiring within one year  
Concentration risk  
Concentration risk, percent 10.00%