Balance Sheet Components - Accrued and Other Current Liabilities (Details) - USD ($) $ in Thousands		Mar. 29, 2019	Dec. 31, 2018
Payables and Accruals [Abstract]
Accrued employee compensation and related expenses		$ 15,483	$ 21,451
Operating lease liability (short-term)		10,660
Accrued warranty		4,587	4,869
Contingent inventory reserves		2,259	2,500
Accrued TVN VDP, current (1)	[1]	1,515	1,585
Accrued Avid litigation settlement, current		1,500	1,500
Others		17,234	20,856
Accrued Liabilities, Current		$ 53,238	$ 52,761

[1] See Note 10, “Restructuring and related charges-TVN VDP,” for additional information on the Company’s TVN VDP liabilities.