Warranty (Tables)

3 Months Ended

Mar. 31, 2012

Warranty [Abstract]

Summary Of Accrued Warranty Obligation

	Three Months Ended
	March 31, 2012			April 2, 2011
Balance at the beginning of the year	$	4,613		$	4,554
Warranty expense		1,068			1,011
Warranty payments		(1,792	)		(1,426	)
Balance at the end of the period	$	3,889		$	4,139