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INVENTORIES (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 25, 2010 | Dec. 29, 2012 | Dec. 31, 2011
INVENTORIES |  |  |
Raw materials and purchased parts |  | $ 199,808 | $ 202,953
Work-in-process |  | 36,114 | 28,053
Finished goods and manufactured goods |  | 222,284 | 212,312
Subtotal |  | 458,206 | 443,318
Less: LIFO reserve |  | 45,822 | 49,536
Net inventory |  | 412,384 | 393,782
Increase in operating income due to liquidating portion of LIFO inventories | $ 1,509 |  |

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