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Leases - Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2019
Jun. 30, 2019
Dec. 31, 2018
Jan. 01, 2019
Lessee, Lease, Description [Line Items]        
Right-of-use assets, net $ 317,085 $ 317,085    
Total lease liabilities, net 360,018 360,018    
Operating lease, cost 35,200 69,200    
Short-term and variable lease cost $ 10,000 $ 20,000    
Rental expense     $ 127,100  
Maximum        
Lessee, Lease, Description [Line Items]        
Remaining lease term   14 years    
Renewal term 10 years 10 years    
Accounting Standards Update 2016-02        
Lessee, Lease, Description [Line Items]        
Right-of-use assets, net       $ 343,000
Total lease liabilities, net       $ 390,000