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Detail of Certain Balance Sheet Accounts (Property and Equipment) (Details) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2017
Dec. 31, 2016
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 1,458,257 $ 1,390,329
Less accumulated depreciation and amortization 290,912 264,446
Property and equipment, net 1,167,345 1,125,883
Land [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 414,616 400,163
Building [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 578,768 553,961
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 $ 186,444 170,060
Machinery and Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 111,310 100,164
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 $ 93,760 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 $ 11,757 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 $ 61,602 $ 66,658