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Warranty (Tables)
9 Months Ended
Feb. 28, 2015
Guarantees [Abstract]  
Reconciliation of Accrued Warranty and Related Expenses

A reconciliation of accrued warranty and related expenses is as follows:

 

    

Nine-Months Ended

February 28,

 
     2015      2014  
     (Dollars in thousands)  

Balance at the beginning of the period

   $ 5,697       $ 5,882   

Accruals for warranties

     4,932         4,106   

Settlements made during the period

     (4,907      (3,867
  

 

 

    

 

 

 

Balance at the end of the period

  5,722      6,121   

Non-current balance included in other deferred liabilities

  2,000      2,200   
  

 

 

    

 

 

 

Accrued warranty and related expenses

$ 3,722    $ 3,921