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Stock Based Compensation - Narrative (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended
Dec. 31, 2020
Mar. 31, 2021
Mar. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Foreign tax payment   $ 0.3  
Stock-based compensation expense   7.6 $ 3.8
ESPP      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Minimum contributions per employee (as a percent) 3.00%    
Maximum contributions per employee (as a percent) 15.00%    
Holding period of ESPP employer contribution 1 year    
Stock-based compensation expense   $ 1.0