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Property, Equipment And Leasehold Improvements, Net
12 Months Ended
Dec. 31, 2011
Property, Equipment And Leasehold Improvements, Net [Abstract]  
Property, Equipment and Leasehold Improvements, Net
 
11.      Property, Equipment and Leasehold Improvements, Net:

A summary of property, equipment and leasehold improvements, net at December 31, 2011 and 2010 is as follows (in thousands):

   
Depreciable
             
   
Lives
             
   
(in years)
   
2011
   
2010
 
                   
Land, buildings and leasehold improvements
    3-45     $ 604,786     $ 384,941  
Beef processing machinery and equipment
    2-15       201,934        
Oil and gas drilling services machinery and equipment
    7-15       201,550       190,951  
Other machinery and equipment
    2-25       202,832       190,476  
Corporate aircraft
    5-10       111,279       99,437  
Furniture and fixtures
    2-10       23,347       21,406  
Construction in progress
    N/A       56,465       2,092  
Other
    3-7       20,869       9,854  
              1,423,062       899,157  
Accumulated depreciation and amortization
            (369,373 )     (311,786 )
            $ 1,053,689     $ 587,371