Restructuring and Impairment - Schedule of Restructuring and Related Costs (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 29, 2024	Jul. 01, 2023	Jun. 29, 2024	Jul. 01, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 2.6	$ 7.8	$ 2.8	$ 8.3
Inventory valuation | Workplace furnishings
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0.0	(0.4)	0.0	(0.3)
Facility set-up costs | Workplace furnishings
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0.6	0.2	0.7	0.5
Long-lived asset charges | Workplace furnishings
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0.0	2.1	0.0	2.1
Exit costs | Workplace furnishings
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 2.0	$ 6.0	$ 2.1	$ 6.0