Balance Sheet Components - Other Noncurrent Liabilities (Details) - USD ($) $ in Thousands	Jun. 26, 2020	Dec. 31, 2019
Other Liabilities Disclosure [Abstract]
Operating lease liability (long-term)	$ 24,604	$ 25,766
Deferred revenue (long-term)	7,089	6,333
Others	9,415	9,155
Other Liabilities, Noncurrent	$ 41,108	$ 41,254