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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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