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Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Disaggregation of Revenue [Line Items]      
Revenue $ 245,932 $ 437,718  
Unbilled receivables 87,179   $ 18,073
Deferred revenue 89,881   $ 149,821
Deferred revenue recognized $ 101,800    
Percentage of deferred revenue recognized 68.00%    
Remaining performance obligation $ 394,400    
Percentage of performance obligation to be recognized 100.00%    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01      
Disaggregation of Revenue [Line Items]      
Remaining performance obligation, period 12 months    
Over-time revenue      
Disaggregation of Revenue [Line Items]      
Revenue $ 231,888 417,961  
Point in time revenue      
Disaggregation of Revenue [Line Items]      
Revenue $ 14,044 $ 19,757