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Credit Facilities and Long-Term Debt, Polish Overdraft Facility (Details) - HSBC Bank Polska S.A. [Member]
zł in Millions, $ in Millions
12 Months Ended
Dec. 31, 2020
PLN (zł)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
PLN (zł)
Dec. 31, 2019
USD ($)
Line of Credit Facility [Abstract]        
Maximum borrowing capacity zł 30.0 $ 8.0    
Overdraft facility expiration date Dec. 31, 2021      
Overdraft facility zł 0.4 $ 0.1 zł 16.7 $ 4.4
1M WIBOR [Member]        
Line of Credit Facility [Abstract]        
Basis spread on variable rate 1.50%