Product Warranty Reserves (Tables)

9 Months Ended

Sep. 30, 2012

Product Warranty Reserves [Abstract]

Product warranty reserves

Changes in the Company's product warranty liability for the three and nine-month periods ended September 30, 2012 and 2011 are as follows (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
Reserve balance, beginning of the period	$	12,634		$	10,247		$	12,663		$	9,891
Warranty liabilities accrued		3,270			3,694			9,118			9,531
Warranty liabilities settled		(2,494	)		(2,692	)		(8,366	)		(8,166	)
Other		31			(170	)		26			(177	)
Reserve balance, end of the period	$	13,441		$	11,079		$	13,441		$	11,079