XML 25 R52.htm IDEA: XBRL DOCUMENT v2.4.0.8
Employee Benefit Plans (Details) (USD $)
 3 Months Ended 3 Months Ended
Mar. 29, 2014
plan
Mar. 30, 2013
Jan. 01, 2011
Jan. 03, 2009
Mar. 29, 2014
Maximum [Member]
Mar. 29, 2014
Pension Plan, Defined Benefit [Member]
Mar. 30, 2013
Pension Plan, Defined Benefit [Member]
Mar. 29, 2014
Other Postretirement Benefit Plan, Defined Benefit [Member]
Mar. 30, 2013
Other Postretirement Benefit Plan, Defined Benefit [Member]
Jan. 07, 2014
Vion Ingredients [Member]
Defined Benefit Plan Disclosure [Line Items]                    
Business combination, pension and postretirement benefit plan obligations assumed                   $ 31,700,000
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]                    
Service cost           1,446,000 77,000 44,000 0  
Interest cost           3,326,000 1,318,000 21,000 0  
Expected return on plan assets           (383,000) (1,819,000) 0 0  
Amortization of prior service cost           4,000 15,000 0 0  
Amortization of net loss           520,000 1,300,000 0 0  
Net pension cost           4,913,000 891,000 65,000 0  
Amount Company expects to contribute to its pension plans 19,100,000                  
Pension Contributions 5,200,000 100,000                
Multiemployer Plans [Abstract]                    
Multiemployer Plan, Contributions To Individual Plan, Percent         5.00%          
Number Of Multiemployer Plans, Withdrawal Obligation Could Be Material 2                  
Number Of Multiemployer Plans Withdrawal Obligation Could Be Material Certified Red Zone 1                  
Number of Multiemployer Plans, Certified Red Zone 4                  
Number of Multiemployer Plans, Certified Yellow Zone 3                  
Accrued liability representing the present value of scheduled withdrawal liability payments for under-funded multi-employer plan $ 900,000   $ 1,200,000 $ 3,200,000