Relationship With Parent and Related Entities - Components of Net Parent Investment (Details) - USD ($) $ in Millions |
6 Months Ended | |
|---|---|---|
Jul. 04, 2026 |
Jun. 28, 2025 |
|
| Components of Net Parent Investment [Abstract] | ||
| Net transfers to Parent and Distribution to Parent as reflected in the Condensed Combined Statements of Cash Flows | $ (297.8) | $ (7.3) |
| Non-cash share-based compensation expense | 4.6 | 1.8 |
| Non-cash deferred tax and other | 0.3 | 15.2 |
| Net transfers (to) from Parent and Distribution to Parent as reflected in the Condensed Combined Statements of Changes in Parent Company Net Investment | $ (292.9) | $ 9.7 |