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Balance Sheet Details - Restructuring (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 02, 2021	Sep. 26, 2020	Oct. 02, 2021	Sep. 26, 2020	Dec. 31, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0	$ 0	$ 0	$ 6,286
Restructuring Reserve [Roll Forward]
Balance as of December 31, 2020			1,376
Cash payments			(325)
Balance as of October 2, 2021	1,051		1,051		$ 1,376
All Platform Future And Work-From-Anywhere Culture Alignment
Restructuring Cost and Reserve [Line Items]
Restructuring charges					6,300
Asset, write-off					300
Accrued common areas maintenance fees and property taxes, write-off					1,400
Facilities
Restructuring Reserve [Roll Forward]
Balance as of December 31, 2020			1,244
Cash payments			(193)
Balance as of October 2, 2021	1,051		1,051		1,244
Facilities | Richardson, Texas and San Jose, California
Restructuring Cost and Reserve [Line Items]
Restructuring charges					3,500
Severance and Related Benefits
Restructuring Reserve [Roll Forward]
Balance as of December 31, 2020			132
Cash payments			(132)
Balance as of October 2, 2021	$ 0		$ 0		$ 132

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