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Leases - Narratives (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Jan. 01, 2019
Lessee        
Accumulated amortization $ 1,500      
Right-of-use assets in exchange for operating lease liabilities 28,600      
Rent expense   $ 63,700 $ 50,000  
Operating lease assets 202,053      
ASU 2016-02        
Lessee        
Operating lease assets       $ 200,000
Term Loan | Finance Leases and Other Financing Arrangements        
Lessee        
Long-term debt, gross $ 108,613 98,914    
Term Loan | Finance Leases and Other Financing Arrangements | ASU 2016-02        
Lessee        
Long-term debt, gross   $ 24,500    
Minimum        
Lessee        
Lessee renewal term (years) 1 year      
Or More        
Lessee        
Lessee renewal term (years) 20 years      
Corporate Airplane        
Lessee        
Term of contract (years) 10 years      
Operating lease assets $ 11,700