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Pension and Other Postretirement Plans (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 27, 2015
Nov. 28, 2015
Nov. 29, 2014
Nov. 30, 2013
Jan. 01, 2007
Defined Benefit Plan Disclosure [Line Items]          
Effect of plan disposal on projected benefit obligation and pension liability   $ (36,273)      
Pension Benefits [Member]          
Defined Benefit Plan Disclosure [Line Items]          
Effect of plan disposal on projected benefit obligation and pension liability [1]   (637)      
Pension Benefits [Member] | J.L. Clark, Inc [Member]          
Defined Benefit Plan Disclosure [Line Items]          
Effect of plan disposal on projected benefit obligation and pension liability   3,988      
United States Pension Plans of US Entity, Defined Benefit [Member]          
Defined Benefit Plan Disclosure [Line Items]          
Voluntary contributions   $ 0 $ 0 $ 1,493  
United States Pension Plans of US Entity, Defined Benefit [Member] | Equity Securities [Member]          
Defined Benefit Plan Disclosure [Line Items]          
Target plan asset allocations   40.00%      
United States Pension Plans of US Entity, Defined Benefit [Member] | Debt Securities [Member]          
Defined Benefit Plan Disclosure [Line Items]          
Target plan asset allocations   60.00%      
United States Pension Plans of US Entity, Defined Benefit [Member] | Qualified Pension Plans [Member]          
Defined Benefit Plan Disclosure [Line Items]          
Estimated employer contributions in next fiscal year   $ 0      
Defined benefit plan effect on next fiscal year net periodic benefit cost from changes in assumptions   898      
United States Pension Plans of US Entity, Defined Benefit [Member] | Qualified Pension Plans [Member] | Pension Benefits [Member] | J.L. Clark, Inc [Member]          
Defined Benefit Plan Disclosure [Line Items]          
Effect of plan disposal on projected benefit obligation and pension liability $ 3,988        
United States Pension Plans of US Entity, Defined Benefit [Member] | Nonqualified Pension Plans [Member]          
Defined Benefit Plan Disclosure [Line Items]          
Estimated employer contributions in next fiscal year   159      
Aggregate projected benefit obligation   2,041      
Aggregate accumulated benefit obligation   1,954      
Restricted trust, included in Other noncurrent assets   729 893    
Defined benefit plan, benefit obligation   $ 2,041 2,358    
Next fiscal year assumptions for calculating net periodic benefit cost, discount rate   3.25%      
Defined benefit plan effect on next fiscal year net periodic benefit cost from changes in assumptions   $ (44)      
Foreign Pension Plans, Defined Benefit [Member]          
Defined Benefit Plan Disclosure [Line Items]          
Estimated employer contributions in next fiscal year   384      
Other Postretirement Benefit Plans, Defined Benefit [Member]          
Defined Benefit Plan Disclosure [Line Items]          
Estimated employer contributions in next fiscal year   45      
Defined benefit plan, benefit obligation   $ 341 397 356  
Next fiscal year assumptions for calculating net periodic benefit cost, discount rate   3.25%      
Unrecognized net prior service credit   $ (350) (473)   $ 1,708
Pension Plan [Member]          
Defined Benefit Plan Disclosure [Line Items]          
Defined benefit plan, benefit obligation   195,516 204,982 $ 176,099  
Unrecognized net prior service credit   1 $ (2)    
Pension Plan [Member] | Qualified Pension Plans [Member]          
Defined Benefit Plan Disclosure [Line Items]          
Aggregate projected benefit obligation   193,475      
Aggregate accumulated benefit obligation   189,895      
Aggregate fair value of plan assets   $ 164,488      
Next fiscal year assumptions for calculating net periodic benefit cost, long term return on plat assets   6.50%      
Next fiscal year assumptions for calculating net periodic benefit cost, discount rate   4.00%      
[1] Includes gains of $3,988 related to a curtailment and re-measurement of the assets and liabilities of the Company's qualified U.S. pension plan resulting from the disposal of J.L. Clark. See Note L for related information.