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Retirement Plans
 3 Months Ended
May 31, 2014
Retirement Plans  
Retirement Plans

10. Retirement Plans

        Net periodic pension expense recorded in the thirteen week periods ended May 31, 2014 and June 1, 2013, for the Company's defined benefit plans includes the following components:

 
   Defined Benefit
Pension Plan		   Nonqualified
Executive
Retirement Plans		  
 
   Thirteen Week Period Ended  
 
   May 31,
2014		   June 1,
2013		   May 31,
2014		   June 1,
2013		  

Service cost

   $ 793   $ 829   $ —   $ —  

Interest cost

     1,631     1,551     135     136  

Expected return on plan assets

     (1,929 )   (1,779 )   —     —  

Amortization of unrecognized prior service cost

     60     60     —     —  

Amortization of unrecognized net loss

     599     1,203     —     —  
                   
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Net pension expense

   $ 1,154   $ 1,864   $ 135   $ 136  
                   
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
                   

        During the thirteen week period ended May 31, 2014 the Company contributed $386 to the Nonqualified Executive Retirement Plans. During the remainder of fiscal 2015, the Company expects to contribute $1,256 to the Nonqualified Executive Retirement Plans and $0 to the Defined Benefit Pension Plan.