Acquisitions Narrative (Details) (USD $)
3 Months Ended 0 Months Ended
Mar. 29, 2015
Mar. 30, 2014
Nov. 14, 2014
Apr. 01, 2014
Dec. 28, 2014
Mar. 31, 2014
Business Acquisition [Line Items]            
Goodwill $ 1,716,272,000       $ 1,719,560,000  
Cost of products sold 493,564,000 477,378,000        
Discount 12,133,000       12,728,000  
Garden Protein International, Inc. [Member]            
Business Acquisition [Line Items]            
Total assets acquired     156,502,000      
Intangible assets and goodwill     147,100,000      
Tradenames     51,950,000      
Goodwill     83,155,000      
Tax deductible goodwill     53,600,000      
Business Combination, Working Capital Adjustment     1,102,000      
Garden Protein International, Inc. [Member] | Tradenames [Member]            
Business Acquisition [Line Items]            
Tradenames     51,900,000      
Garden Protein International, Inc. [Member] | Distributor Relationships [Member]            
Business Acquisition [Line Items]            
Useful life     30 years      
Garden Protein International, Inc. [Member] | Customer Relationships [Member]            
Business Acquisition [Line Items]            
Useful life     7 years      
Garden Protein International, Inc. [Member] | Technology-Based Intangible Assets [Member]            
Business Acquisition [Line Items]            
Useful life     10 years      
Gilster Duncan Hines Facility Acquisition [Member]            
Business Acquisition [Line Items]            
Total assets acquired           26,620,000
Goodwill           9,550,000
Tax deductible goodwill           7,500,000
Payments for business acquisition       11,700,000    
Business Acquisition, Transaction Costs           300,000
Notes Payable, Other Payables [Member] | Gilster Duncan Hines Facility Acquisition [Member] | Debt Instrument, 3% Notes Payable Due 2018 [Member]            
Business Acquisition [Line Items]            
Notes Payable Face Amount       14,900,000    
Line of Credit [Member] | Garden Protein International, Inc. [Member] | Revolving Credit Facility [Member]            
Business Acquisition [Line Items]            
Senior Secured Credit Facility         $ 40,000,000