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Basis of Presentation - Schedule of Allowance for Credit Losses (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Trade Receivables    
Accounts Receivable, Allowance for Credit Loss [Roll Forward]    
Allowance for Credit Losses, Beginning of Year $ 84 $ 0
Provision for Expected Credit Losses 0 131
Allowance for Credit Losses, End of Period 84 131
Other Receivables    
Accounts Receivable, Allowance for Credit Loss [Roll Forward]    
Allowance for Credit Losses, Beginning of Year 3,248 2,463
Provision for Expected Credit Losses (129) 2,566
Write-off of Uncollectible Accounts (18) 0
Allowance for Credit Losses, End of Period $ 3,101 $ 5,029