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Related Party Transactions (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2021
Dec. 31, 2020
Related Party Transaction    
Operating lease right-of-use assets $ 268,537 $ 264,880
Operating lease liabilities 274,408 $ 270,014
Rent expense 600  
Office Space and Fitness Facility    
Related Party Transaction    
Operating lease right-of-use assets 6,000  
Operating lease liabilities $ 6,100