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Pension Plan (Tables)
3 Months Ended
May 31, 2017
Compensation and Retirement Disclosure [Abstract]  
Summary of Pension Expense Composed of Components Included in Cost of Goods Sold and Selling, General and Administrative Expenses

Pension expense is composed of the following components included in cost of goods sold and selling, general, and administrative expenses in the Company’s consolidated statements of earnings (in thousands):

 

     Three months ended
May 31,
 
     2017      2016  

Components of net periodic benefit cost

     

Service cost

   $ 271      $ 291  

Interest cost

     568        593  

Expected return on plan assets

     (949      (916

Amortization of:

     

Unrecognized net loss

     510        671  
  

 

 

    

 

 

 

Net periodic benefit cost

   $ 400      $ 639