Product Warranties (Tables)

9 Months Ended

Sep. 30, 2012

Summary of Changes in Product Warranties Reserve

The following table reflects the changes in the Company’s warranty reserve during the three and nine months ended September 30, 2012 and 2011:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
Warranty reserve, beginning of period	$	58,790		$	62,804		$	64,008		$	69,787
Provision		11,870			11,474			27,587			23,247
Payments		(9,559	)		(11,110	)		(30,494	)		(29,866	)
Warranty reserve, end of period	$	61,101		$	63,168		$	61,101		$	63,168