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Summary of Significant Accounting Policies - Narrative (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Jan. 01, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]            
Accrual for tax uncertainties $ 0   $ 0     $ 0
Proceeds from insurance settlement, property and business interruption 1,400,000 $ 12,500,000 6,400,000 $ 52,500,000    
Lease liabilities 102,324,000   102,324,000      
Right-of-use assets $ 98,833,000   $ 98,833,000      
Minimum | Land, Buildings and Improvements            
Property, Plant and Equipment [Line Items]            
Useful life     5 years      
Minimum | Furniture, fixtures and equipment            
Property, Plant and Equipment [Line Items]            
Useful life     1 year      
Maximum | Land, Buildings and Improvements            
Property, Plant and Equipment [Line Items]            
Useful life     40 years      
Maximum | Furniture, fixtures and equipment            
Property, Plant and Equipment [Line Items]            
Useful life     10 years      
Accounting Standards Update 2016-02            
Property, Plant and Equipment [Line Items]            
Lease liabilities         $ 101,200,000  
Right-of-use assets         $ 99,600,000