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Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Disaggregation of Revenue [Line Items]          
Revenue $ 192,068 $ 139,462 $ 640,796 $ 692,096  
Unbilled receivables 61,108   61,108   $ 18,073
Deferred revenue 81,347   81,347   $ 149,821
Deferred revenue recognized     $ 149,800    
Percentage of deferred revenue recognized     100.00%    
Remaining performance obligation $ 591,000   $ 591,000    
Percentage of performance obligation to be recognized 100.00%   100.00%    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01          
Disaggregation of Revenue [Line Items]          
Remaining performance obligation, period 12 months   12 months    
Over-time revenue          
Disaggregation of Revenue [Line Items]          
Revenue $ 169,753 112,329 $ 591,117 620,447  
Point in time revenue          
Disaggregation of Revenue [Line Items]          
Revenue $ 22,315 $ 27,133 $ 49,679 $ 71,649