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Cash and Investments - Fair Value and Gross Unrealized Losses of Investments Available-for-Sale in an Unrealized Loss Position (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Jan. 01, 2021
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value | $ 454,780 | $ 56,299
Gross Unrealized Losses | (1,730) | (12)
Corporate bonds |  |
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value | 385,053 | 28,445
Gross Unrealized Losses | (1,672) | (7)
Commercial paper |  |
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value | 43,290 |
Gross Unrealized Losses | (2) |
U.S. Treasury and government-sponsored enterprises |  |
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value | 18,962 | 21,989
Gross Unrealized Losses | (21) | (4)
Municipal bonds |  |
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value | 7,475 | 5,865
Gross Unrealized Losses | $ (35) | $ (1)

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