Acquisitions and Divestitures - Schedule of Results of Operations (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 29, 2024	Jul. 01, 2023	Jun. 29, 2024	Jul. 01, 2023
Schedule Of Asset Acquisition [Line Items]
Net sales	$ 623.7	$ 563.5	$ 1,211.7	$ 1,042.5
Net income (loss)	0.0	0.0	0.0	0.0
Kimball International, Inc
Schedule Of Asset Acquisition [Line Items]
Net sales	139.6	56.0	287.1	56.0
Net income (loss)	$ 10.1	$ (21.3)	$ 16.3	$ (21.3)