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Warranty (Tables)
 6 Months Ended
Jan. 31, 2013
Warranty [Abstract]  
Reconciliation Of Warranty Reserves

 

 

 

 

 

 

 

 

 

 

January 31,

 

 

 

2013

 

2012

 

Beginning balance

 

$

10,905

 

$

19,720

 

Accruals for warranties issued during the reporting period

 

 

3,816

 

 

1,826

 

Accruals related to pre-existing warranties (including changes in estimates)

 

 

395

 

 

(1,294

)

Less settlements made during the period

 

 

(2,224

)

 

(5,638

)

Ending balance

 

$

12,892

 

$

14,614