Commitments and Contingencies (Tables)

6 Months Ended

Jun. 29, 2012

Commitments and Contingencies [Abstract]

Future minimum lease payments under noncancelable operating leases

Leases. Future minimum lease payments under noncancelable operating leases at June 29, 2012 are as follows:

	(In thousands)
Years ending December 31,
2012 (remaining six months)	$	3,808
2013		8,117
2014		6,837
2015		6,738
2016		6,797
Thereafter		26,673
Total	$	58,970

Summary of warranty accrual included in accrued liabilities

	Three months ended						Six months ended
	June 29, 2012			July 1, 2011			June 29, 2012			July 1, 2011
	(In thousands)
Balance at beginning of period	$	5,133		$	5,263		$	5,558		$	4,811
Accrual for current period warranties		1,474			2,171			3,093			4,433
Warranty costs incurred		(1,882	)		(1,856	)		(3,926	)		(3,666	)
Balance at end of period	$	4,725		$	5,578		$	4,725		$	5,578