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Detail of Certain Balance Sheet Accounts (Property and Equipment) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 1,429,609 $ 1,390,329
Less accumulated depreciation and amortization 277,214 264,446
Property and equipment, net 1,152,395 1,125,883
Land [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 409,022 400,163
Building [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 559,733 553,961
Building [Member] | Minimum [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Estimated Useful Lives P25Y  
Building [Member] | Maximum [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Estimated Useful Lives P50Y  
Leasehold Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Estimated Useful Lives varies  
Property, Plant and Equipment, Gross $ 168,101 170,060
Machinery and Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 104,156 100,164
Machinery and Equipment [Member] | Minimum [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Estimated Useful Lives P7Y  
Machinery and Equipment [Member] | Maximum [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Estimated Useful Lives P20Y  
Furniture and Fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 90,503 87,691
Furniture and Fixtures [Member] | Minimum [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Estimated Useful Lives P3Y  
Furniture and Fixtures [Member] | Maximum [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Estimated Useful Lives P10Y  
Vehicles [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 11,904 11,632
Vehicles [Member] | Minimum [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Estimated Useful Lives P3Y  
Vehicles [Member] | Maximum [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Estimated Useful Lives P5Y  
Construction in Progress [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 86,190 $ 66,658