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Assets Held for Sale (Details) (USD $)
In Thousands, unless otherwise specified
Jul. 01, 2012
Dec. 31, 2011
Assets and liabilities included in asset held for sale    
Accumulated depreciation   $ (1,687)
Other assets   192
Accrued liabilities   (375)
Assets held for sale 0 1,739 [1]
Land and land improvements [Member]
   
Assets and liabilities included in asset held for sale    
Assets held for sale, property, plant and equipment   313
Buildings and building improvements [Member]
   
Assets and liabilities included in asset held for sale    
Assets held for sale, property, plant and equipment   1,575
Machinery, equipment, furniture and fixtures [Member]
   
Assets and liabilities included in asset held for sale    
Assets held for sale, property, plant and equipment   $ 1,721
[1] The balance sheet at December 31,2011 has been derived from the audited consolidated financial statements at that date but does not include all information and footnotes required by accounting principles generally accepted in the United States for a complete set of financial statements.