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Commitments and Contingencies - Schedule of Future Payments of Legal Settlements (Details) - Uprr - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2018
Loss Contingencies [Line Items]    
2021 $ 8,000  
2022 8,000  
2023 8,000  
2024 8,000  
Total $ 32,000 $ 50,000