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Fair Value Measurements - Schedule of Fair Value of Assets and Liabilities Measured on Recurring Basis (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Warrant Liability $ 8,030 $ 22,686
Total Financial Liabilities at Fair Value 8,030 22,686
Level 1 [Member]    
Warrant Liability
Total Financial Liabilities at Fair Value
Level 2 [Member]    
Warrant Liability
Total Financial Liabilities at Fair Value
Level 3 [Member]    
Warrant Liability 8,030 22,686
Total Financial Liabilities at Fair Value $ 8,030 $ 22,686