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Summary of Significant Accounting Policies - Leases Narrative (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
USD ($)
Dec. 31, 2021
USD ($)
lease
renewal_option
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Jan. 01, 2019
USD ($)
Lessee, Lease, Description [Line Items]          
Renewal option | renewal_option   1      
Accounting Standards Update [Extensible List] ASU 2016-02        
Cumulative effect of new accounting principle in period of adoption $ 1,862,463 $ 857,068 $ 1,136,729 $ 1,464,227  
Number of leases not yet commenced | lease   14      
Total undiscounted lease payment   $ 456,700      
United Kingdom          
Lessee, Lease, Description [Line Items]          
Total undiscounted lease payment   $ 5,000      
Operating leases not yet commenced, term   25 years      
Adjustment          
Lessee, Lease, Description [Line Items]          
Cumulative effect of new accounting principle in period of adoption $ 5,781        
Minimum          
Lessee, Lease, Description [Line Items]          
Lessee, operating lease, term   5 years      
Lessee, operating lease, renewal term   5 years      
Operating leases not yet commenced, term   10 years      
Minimum | Vehicle And Equipment          
Lessee, Lease, Description [Line Items]          
Lessee, operating lease, term   1 year      
Maximum          
Lessee, Lease, Description [Line Items]          
Lessee, operating lease, term   10 years      
Lessee, operating lease, renewal term   1 year      
Operating leases not yet commenced, term   25 years      
Maximum | Vehicle And Equipment          
Lessee, Lease, Description [Line Items]          
Lessee, operating lease, term   7 years      
ASU 2016-02 | Adjustment          
Lessee, Lease, Description [Line Items]          
Cumulative effect of new accounting principle in period of adoption         $ 5,800