Commitments and Contingencies (Tables)

3 Months Ended

Mar. 30, 2018

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 March 30, 2018 are as follows (in thousands):

Years ending December 31,
2018 (remaining nine months)	$	9,866
2019	11,460
2020	8,406
2021	2,953
2022	2,509
Thereafter	11,344
Total	$	46,538

Summary of Warranty Accrual Included in Accrued Liabilities

Activity for the Company’s warranty accrual, which is included in “Accrued and other current liabilities”, is summarized below (in thousands):

	Three months ended
	March 30, 2018			March 31, 2017
Balance at beginning of period	$	4,381		$	4,862
Accrual for current period warranties	1,736			1,218
Warranty costs incurred	(1,595		)	(1,495		)
Balance at end of period	$	4,522		$	4,585