Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2017

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 30, 2017 are as follows (in thousands):

Years ending December 31,
2017 (remaining six months)	$	6,759
2018	12,812
2019	10,980
2020	7,521
2021	2,166
Thereafter	8,586
Total	$	48,824

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 30, 2017			July 1, 2016			June 30, 2017			July 1, 2016
Balance at beginning of period	$	4,585		$	4,966		$	4,862		$	3,913
Balance assumed from TVN acquisition	—			—			—			1,012
Accrual for current period warranties	1,277			1,716			2,495			2,975
Changes in liability related to pre-existing warranties	—			(74		)	—			(74		)
Warranty costs incurred	(1,720		)	(1,513		)	(3,215		)	(2,731		)
Balance at end of period	$	4,142		$	5,095		$	4,142		$	5,095