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Pension and Postretirement Benefits
3 Months Ended
Apr. 01, 2012
Pension and Postretirement Benefits (Thousands of Dollars) [Abstract]  
Pension and Postretirement Benefits
(7) Pension and Postretirement Benefits

The components of the net periodic cost of the Company's defined benefit pension and other postretirement plans for the quarters ended April 1, 2012 and March 27, 2011 are as follows:

 
Pension
Postretirement
 
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------------------
 
2012
2011
2012
2011
 
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-------
-------
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Service cost
$ 1,198   
 1,079    
184   
171   
Interest cost
5,494   
5,223    
440   
440   
Expected return on assets
(5,671)  
(6,249)   
-   
-   
Net amortization and deferrals
1,908   
1,295    
20   
18   
 
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Net periodic benefit cost
$ 2,929   
 1,348    
644   
629   
 
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In the first quarter of fiscal 2012, the Company made cash contributions to its defined benefit pension plans of approximately $2,100 in the aggregate. The Company expects to contribute approximately $3,700 during the remainder of fiscal 2012.