Commitments and Contingencies (Tables)

9 Months Ended

Oct. 02, 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 October 2, 2015 are as follows (in thousands):

Years ending December 31,
2015 (remaining three months)	$	1,809
2016	9,346
2017	8,739
2018	8,435
2019	8,245
Thereafter	6,402
Total	$	42,976

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						Nine months ended
	October 2, 2015			September 26, 2014			October 2, 2015			September 26, 2014
Balance at beginning of period	$	4,167		$	3,532		$	4,242		$	3,606
Accrual for current period warranties	1,182			2,028			4,215			5,383
Warranty costs incurred	(1,448		)	(1,629		)	(4,556		)	(5,058		)
Balance at end of period	$	3,901		$	3,931		$	3,901		$	3,931