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Deferred Compensation and Retirement Plans (Tables) (Deferred Compensation Plans)
6 Months Ended
Oct. 31, 2014
Deferred Compensation Plans
 
Components Of Net Periodic Benefit Costs

The components of net periodic benefit costs are as follows:

 

     Three Months Ended
October 31,
     Six Months Ended
October 31,
 
     2014      2013      2014      2013  
     (in thousands)  

Amortization of actuarial loss

   $ 762       $ 779       $ 1,525       $ 1,559   

Interest cost

     748         676         1,495         1,352   
  

 

 

    

 

 

    

 

 

    

 

 

 

Net periodic benefit costs

   $ 1,510       $ 1,455       $ 3,020       $ 2,911