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Acquisitions and Divestitures - Schedule of Results of Operations (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 28, 2024 | Dec. 30, 2023 | Dec. 31, 2022
Business Acquisition [Line Items] |  |  |
Net sales | $ 2,526.4 | $ 2,434.0 | $ 2,361.8
Net income (loss) | 0.0 | 0.0 | $ 0.0
Kimball International, Inc |  |  |
Business Acquisition [Line Items] |  |  |
Net sales | 594.4 | 361.4 |
Net income (loss) | $ 36.4 | $ (3.0) |

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