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Employee Benefit Plans (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
US employees    
Defined Contribution Plan Disclosure [Line Items]    
Maximum employee contribution 100.00%  
Maximum matching employer contribution per employee 4.00%  
Recognized expense $ 0.3 $ 0.2
Total benefit obligation 0.1 0.0
Non US employees    
Defined Contribution Plan Disclosure [Line Items]    
Total benefit obligation $ 0.3 $ 0.0