Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2012

Commitments and Contingencies [Abstract]

Activity in sales returns liability

The activity in the sales returns liability account was as follows (in thousands):

	Three Months Ended
	March 31, 2012			April 2, 2011
Balance at beginning of year	$	4,402		$	2,944
Additions that reduce net sales		13,066			10,581
Deductions from reserves		(12,047	)		(9,497	)
Balance at end of period	$	5,421		$	4,028

Activity in accrued warranty liabilities account

The activity in the accrued warranty liabilities account was as follows (in thousands):

	Three Months Ended
	March 31, 2012			April 2, 2011
Balance at beginning of year	$	6,310		$	5,744
Additions charged to costs and expenses for current-year sales		1,448			1,074
Deductions from reserves		(1,383	)		(1,050	)
Changes in liability for pre-existing warranties during the current year, including expirations		505			(142	)
Balance at end of period	$	6,880		$	5,626