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Inventories (Details) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2012 | Dec. 31, 2011
--- | --- | ---
At lower of LIFO cost or market: |  |
Live hogs and materials | $ 227,303 | $ 228,624
Fresh pork and materials | 31,586 | 29,426
Inventories at lower of LIFO cost or market, Gross | 258,889 | 258,050
LIFO adjustment | (56,604) | (57,783)
Total inventories at lower of LIFO cost or market | 202,285 | 200,267
At lower of FIFO cost or market: |  |
Grains and oilseeds | 280,500 | 251,839
Sugar produced and in process | 64,157 | 78,730
Other | 84,671 | 63,449
Total inventories at lower of FIFO cost or market | 429,328 | 394,018
Grain, flour and feed at lower of weighted average cost or market | 63,081 | 50,645
Total inventories | $ 694,694 | $ 644,930

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- Definition The amount of FIFO (first in first out) inventory present at the reporting date when inventory is also valued using different valuation methods. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Chapter 3 -Section A -Paragraph 9 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 + Details
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