Property, Equipment And Leasehold Improvements, Net (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012 Y	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 1,242,986	$ 1,207,272
Accumulated depreciation and amortization	(385,626)	(323,163)
Property, equipment and leasehold improvements, net	857,360	884,109
Land, Buildings And Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	622,040	601,681
Depreciable Lives, minimum (in years)	5
Depreciable Lives, maximum (in years)	45
Beef Processing Machinery And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	240,412	201,934
Depreciable Lives, minimum (in years)	2
Depreciable Lives, maximum (in years)	15
Other Machinery And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	187,611	202,405
Depreciable Lives, minimum (in years)	3
Depreciable Lives, maximum (in years)	25
Corporate Aircraft [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	112,071	111,279
Depreciable Lives (in years)	10
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	23,454	23,285
Depreciable Lives, minimum (in years)	2
Depreciable Lives, maximum (in years)	10
Construction In Progress [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	53,302	53,526
Other PP&E [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 4,096	$ 13,162
Depreciable Lives, minimum (in years)	3
Depreciable Lives, maximum (in years)	10