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Property And Equipment, Net (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Property, Plant and Equipment [Line Items]      
Total cost $ 1,235,741 $ 1,473,291  
Total accumulated depreciation (402,384) (380,297)  
Property, Plant and Equipment, Net, Total 833,357 1,092,994  
Total depreciation expense 96,383 101,703 $ 96,563
Land [Member]      
Property, Plant and Equipment [Line Items]      
Total cost 138,546 171,776  
Buildings And Leasehold Improvements [Member]      
Property, Plant and Equipment [Line Items]      
Total cost 575,238 704,636  
Equipment [Member]      
Property, Plant and Equipment [Line Items]      
Total cost $ 521,957 $ 596,879