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Contingencies (Narrative) (Details) - USD ($)
Jun. 30, 2022
Dec. 31, 2021
Jun. 30, 2021
Loss Contingencies [Line Items]      
Company guarantees $ 45,300,000    
Restricted deposits 86,019,000 $ 80,981,000  
Letters of Credit Outstanding, Amount 16,800,000    
Surety bonds [Member]      
Loss Contingencies [Line Items]      
Company guarantees 27,800,000    
ABL Facility [Member]      
Loss Contingencies [Line Items]      
Line of credit 0    
Cash Collateral     $ 0
Letters of Credit Outstanding, Amount $ 0   $ 0