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Fair Value of Financial Instruments - Fair Values of Other Financial Instruments (Details) - USD ($) $ in Millions | Oct. 03, 2020 | Jun. 01, 2020 | Dec. 28, 2019 | Mar. 06, 2017
--- | --- | --- | --- | ---
1.375% Convertible Senior Notes (2022 Notes) |  |  |  |
Fair values of other financial instruments |  |  |  |
Interest rate (as a percent) | 1.375% | 1.375% | 1.375% | 1.375%
Fair value of debt | $ 174.5 |  | $ 524.0 |
0.625% Convertible Senior Notes (2025 Notes) |  |  |  |
Fair values of other financial instruments |  |  |  |
Interest rate (as a percent) | 0.625% | 0.625% |  |
Fair value of debt | $ 575.8 |  |  |

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