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Acquisitions and Divestitures - Schedule of Results of Operations (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 28, 2024 | Sep. 30, 2023 | Sep. 28, 2024 | Sep. 30, 2023
Schedule Of Asset Acquisition [Line Items] |  |  |  |
Net sales | $ 672.2 | $ 711.6 | $ 1,883.9 | $ 1,754.2
Net income (loss) | 0.0 | 0.0 | 0.0 | 0.0
Kimball International, Inc |  |  |  |
Schedule Of Asset Acquisition [Line Items] |  |  |  |
Net sales | 149.5 | 158.0 | 436.6 | 214.0
Net income (loss) | $ 12.4 | $ 0.7 | $ 28.7 | $ (20.6)

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