Product Warranties (Tables)

3 Months Ended

Mar. 31, 2013

Product Warranties Disclosures [Abstract]

Summary of Changes in Product Warranties Reserve

The following table reflects the changes in the Company’s warranty reserve during the three months ended March 31, 2013 and 2012:

	Three Months Ended March 31,
	2013			2012
Warranty reserve, beginning of period	$	62,742		$	64,008
Provision		8,291			6,415
Payments		(7,976	)		(10,137	)
Warranty reserve, end of period	$	63,057		$	60,286