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Deferred Compensation and Retirement Plans (Tables) (Deferred Compensation Plans)
9 Months Ended
Jan. 31, 2015
Deferred Compensation Plans
 
Components Of Net Periodic Benefit Costs

The components of net periodic benefit costs are as follows:

 

     Three Months Ended
January 31,
     Nine Months Ended
January 31,
 
     2015      2014      2015      2014  
     (in thousands)  

Amortization of actuarial loss

   $ 763       $ 780       $ 2,288       $ 2,339   

Interest cost

     747         675         2,242         2,027   
  

 

 

    

 

 

    

 

 

    

 

 

 

Net periodic benefit costs

$ 1,510    $ 1,455    $ 4,530    $ 4,366