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Pension and Other Postretirement Plans (Estimated Future Benefit Payments and Cost Recognized) (Details) - USD ($)
$ in Thousands
12 Months Ended
Nov. 28, 2015
Nov. 29, 2014
Nov. 30, 2013
Estimated Future Benefit Payments      
Defined contribution plan, cost recognized $ 7,171 $ 7,945 $ 4,482
Pension Plan [Member]      
Estimated Future Benefit Payments      
2016 8,877    
2017 9,239    
2018 9,596    
2019 9,960    
2020 10,380    
2021-2025 59,247    
Other Postretirement Benefit Plans, Defined Benefit [Member]      
Estimated Future Benefit Payments      
2016 45    
2017 41    
2018 37    
2019 34    
2020 30    
2021-2025 $ 110