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Contingencies and Other Accrued Losses (Tables)
 3 Months Ended
Aug. 31, 2017
Commitments And Contingencies Disclosure [Abstract]  
Changes in Accrued Warranty Balances

The following table includes the changes in our accrued warranty balances:

 

 

Three Months Ended

 

 

 

August 31,

 

 

August 31,

 

 

 

2017

 

 

2016

 

 

 

(In thousands)

 

Beginning Balance

 

$

19,149

 

 

$

13,314

 

Deductions (1)

 

 

(8,642

)

 

 

(2,490

)

Provision charged to expense

 

 

5,264

 

 

 

4,409

 

Ending Balance

 

$

15,771

 

 

$

15,233

 

 

(1)

Primarily claims paid during the year.