Revenue from Contracts with Customers - Schedule of Revenue Disaggregated by Product Type and Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Aug. 29, 2026	Aug. 30, 2025
Disaggregation of Revenue [Line Items]
Net sales	$ 923.4	$ 955.7
North America Contract
Disaggregation of Revenue [Line Items]
Net sales	505.6	533.9
International Contract
Disaggregation of Revenue [Line Items]
Net sales	156.8	167.5
Global Retail
Disaggregation of Revenue [Line Items]
Net sales	261.0	254.3
Workplace
Disaggregation of Revenue [Line Items]
Net sales	355.7	390.6
Workplace \| North America Contract
Disaggregation of Revenue [Line Items]
Net sales	316.1	340.3
Workplace \| International Contract
Disaggregation of Revenue [Line Items]
Net sales	37.4	48.3
Workplace \| Global Retail
Disaggregation of Revenue [Line Items]
Net sales	2.2	2.0
Performance Seating
Disaggregation of Revenue [Line Items]
Net sales	208.0	205.0
Performance Seating \| North America Contract
Disaggregation of Revenue [Line Items]
Net sales	87.8	90.3
Performance Seating \| International Contract
Disaggregation of Revenue [Line Items]
Net sales	70.2	69.1
Performance Seating \| Global Retail
Disaggregation of Revenue [Line Items]
Net sales	50.0	45.6
Lifestyle
Disaggregation of Revenue [Line Items]
Net sales	304.5	304.2
Lifestyle \| North America Contract
Disaggregation of Revenue [Line Items]
Net sales	52.9	56.0
Lifestyle \| International Contract
Disaggregation of Revenue [Line Items]
Net sales	43.3	42.1
Lifestyle \| Global Retail
Disaggregation of Revenue [Line Items]
Net sales	208.3	206.1
Other
Disaggregation of Revenue [Line Items]
Net sales	55.2	55.9
Other \| North America Contract
Disaggregation of Revenue [Line Items]
Net sales	48.8	47.3
Other \| International Contract
Disaggregation of Revenue [Line Items]
Net sales	5.9	8.0
Other \| Global Retail
Disaggregation of Revenue [Line Items]
Net sales	0.5	0.6
Operating Segments \| North America Contract
Disaggregation of Revenue [Line Items]
Net sales	505.6	533.9
Operating Segments \| International Contract
Disaggregation of Revenue [Line Items]
Net sales	156.8	167.5
Operating Segments \| Global Retail
Disaggregation of Revenue [Line Items]
Net sales	$ 261.0	$ 254.3