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Acquisitions Details (Details) (USD $)
 9 Months Ended 0 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Dec. 29, 2012
Aug. 26, 2013
Terra Holding Company [Member]
Business Acquisition [Line Items]        
Payments to acquire businesses, net of cash acquired $ 121,440,000 $ 3,000,000   $ 121,400,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment       27,200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles       46,100,000
Goodwill 446,742,000   381,369,000 65,400,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent       23,900,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Assets, Net       6,600,000
Business Acquisition, Goodwill, Expected Tax Deductible Amount       $ 5,200,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life       12 years