Goodwill and Other Intangible Assets - Schedule of Activity in Carrying Amount of Goodwill (Details) $ in Millions	6 Months Ended
	Jun. 29, 2024 USD ($)
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	$ 519.6
Accumulated impairment losses	(78.6)
Goodwill, net, beginning balance	441.0
Goodwill measurement period adjustments	1.1
Goodwill, gross, ending balance	520.7
Accumulated impairment losses	(78.6)
Goodwill, net, ending balance	442.1
Workplace Furnishings
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	297.2
Accumulated impairment losses	(78.5)
Goodwill, net, beginning balance	218.7
Goodwill measurement period adjustments	1.1
Goodwill, gross, ending balance	298.3
Accumulated impairment losses	(78.5)
Goodwill, net, ending balance	219.8
Residential Building Products
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	222.4
Accumulated impairment losses	(0.1)
Goodwill, net, beginning balance	222.3
Goodwill measurement period adjustments	0.0
Goodwill, gross, ending balance	222.4
Accumulated impairment losses	(0.1)
Goodwill, net, ending balance	$ 222.3