Product Warranties (Tables)

9 Months Ended

Apr. 30, 2013

Schedule of Changes In Product Warranty Reserves

Changes in our product warranty reserves are as follows:

	Three Months Ended April 30,				Nine Months Ended April 30,
	2013		2012		2013		2012
Beginning balance	$	79,210	$	62,020	$	73,280	$	66,054
Provision		24,479		20,751		69,829		50,284
Payments		(19,652)		(15,333)		(59,072)		(48,900)
Ending balance	$	84,037	$	67,438	$	84,037	$	67,438