Product Warranty Reserves (Tables)

6 Months Ended

Jun. 30, 2012

Product Warranty Reserves [Abstract]

Product warranty reserves

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

	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
Reserve balance, beginning of the period	$	12,258		$	9,979		$	12,663		$	9,891
Warranty liabilities accrued		3,107			2,936			5,849			5,836
Warranty liabilities settled		(2,662	)		(2,672	)		(5,872	)		(5,475	)
Other		(69	)		4			(6	)		(5	)
Reserve balance, end of the period	$	12,634		$	10,247		$	12,634		$	10,247