Commitments and Contingencies (Tables)

3 Months Ended

Mar. 29, 2013

Commitments And Contingencies Disclosure [Abstract]

Future Minimum Lease Payments Under Non-cancelable Operating Leases

Future minimum lease payments under non-cancelable operating leases at March 29, 2013, after giving effect to $0.6 million of future sublease income from Aurora, are as follows (in thousands):

Years ending December 31,
2013 (remaining nine months)	$	7,616
2014		7,495
2015		7,042
2016		7,235
2017		7,360
Thereafter		20,398
Total	$	57,146

Summary of Warranty Accrual Included in Accrued Liabilities

Activity for the Company’s warranty accrual, which is included in accrued liabilities, is summarized below (in thousands):

	Three months ended
	March 29, 2013			March 30, 2012
Balance at beginning of period	$	4,292		$	5,558
Transfer to Aurora as part of the sale of discontinued operations		(939	)		—
Accrual for current period warranties		1,394			1,619
Warranty costs incurred		(1,477	)		(2,044	)
Balance at end of period	$	3,270		$	5,133