Commitments and Contingencies (Tables)

3 Months Ended

Mar. 30, 2012

Commitments and Contingencies [Abstract]

Future minimum lease payments under noncancelable operating leases

Future minimum lease payments under noncancelable operating leases at March 30, 2012 are as follows:

	Total
	(In thousands)
2012 (remaining nine months)	$	4,755
2013		7,922
2014		6,595
2015		6,612
2016		6,807
Thereafter		26,681
	$	59,372

Summary of warranty accrual included in accrued liabilities

	Three months ended
	March 31, 2012			April 1, 2011
	(In thousands)
Balance at beginning of period	$	5,558		$	4,811
Accrual for current period warranties		1,619			2,262
Warranty costs incurred		(2,044	)		(1,810	)
Balance at end of period	$	5,133		$	5,263