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Summary of Significant Accounting Policies (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Property, Plant and Equipment [Line Items]    
Ownership interest in subsidiaries (as a percent) 100.00%  
Assets of TRSs $ 26,676 $ 26,559
Liabilities of TRSs $ 101,602 $ 68,921
Buildings and improvements | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 40 years  
Personal property | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 12 years