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Revenue - Summary of Total Receivables, Net (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Revenue from Contract with Customer [Abstract]        
Billed receivables $ 162,479 $ 179,177    
Allowance for doubtful accounts (2,861) (3,912) $ (5,149) $ (3,912)
Billed receivables, net 159,618 175,265    
Current accrued receivables, net 160,787 167,614    
Long-term accrued receivables, net 276,164 215,772    
Total accrued receivables, net 436,951 383,386    
Total receivables, net $ 596,569 $ 558,651