Commitments and Contingencies (Tables)

6 Months Ended

Jun. 29, 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 June 29, 2018 are as follows (in thousands):

Years ending December 31,
2018 (remaining six months)	$	6,505
2019	11,420
2020	8,379
2021	2,907
2022	2,431
Thereafter	10,758
Total	$	42,400

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						Six months ended
	June 29, 2018			June 30, 2017			June 29, 2018			June 30, 2017
Balance at beginning of period	$	4,522		$	4,585		$	4,381		$	4,862
Accrual for current period warranties	1,714			1,277			3,450			2,495
Warranty costs incurred	(1,589		)	(1,720		)	(3,184		)	(3,215		)
Balance at end of period	$	4,647		$	4,142		$	4,647		$	4,142