Commitments and Contingencies (Tables)

6 Months Ended

Jul. 03, 2015

Commitments and Contingencies Disclosure [Abstract]

Future Minimum Lease Payments Under Non-cancelable Operating Leases

Future minimum lease payments under non-cancelable operating leases as of July 3, 2015, after giving effect to $50,000 of future sublease income, are as follows (in thousands):

Years ending December 31,
2015 (remaining 6 months)	$	4,479
2016	9,112
2017	8,517
2018	8,263
2019	8,070
Thereafter	6,226
Total	$	44,667

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						Six months ended
	July 3, 2015			June 27, 2014			July 3, 2015			June 27, 2014
Balance at beginning of period	$	4,091		$	3,659		$	4,242		$	3,606
Accrual for current period warranties	1,438			1,606			3,033			3,355
Warranty costs incurred	(1,362		)	(1,733		)	(3,108		)	(3,429		)
Balance at end of period	$	4,167		$	3,532		$	4,167		$	3,532