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Revenue - Schedule of Significant Changes in Contract Liabilities (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Contract with Customer, Liability [Roll Forward]    
Beginning balance $ 2,284 $ 225
Revenue recognized that was included in the contract liabilities beginning balance (1,667) (225)
Increase due to cash received and not recognized as revenue and billings in excess of revenue recognized during the period 37 2,284
Ending balance $ 654 $ 2,284