Operating Segments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 30, 2019	Dec. 01, 2018	Nov. 30, 2019	Dec. 01, 2018	Jun. 01, 2019
Segment Reporting Information
Net sales	$ 674.2	$ 652.6	$ 1,345.2	$ 1,277.3
Operating Earnings (Loss):	62.4	53.1	122.6	99.1
Total Assets	1,878.0		1,878.0		$ 1,569.3
North America Contract
Segment Reporting Information
Net sales	450.6	434.8	909.3	855.8
Operating Earnings (Loss):	62.5	51.2	125.4	99.4
Total Assets	851.9		851.9		733.6
International Contract
Segment Reporting Information
Net sales	118.2	118.5	232.0	234.0
Operating Earnings (Loss):	12.8	13.8	25.9	24.3
Total Assets	399.8		399.8		356.8
Retail
Segment Reporting Information
Net sales	105.4	99.3	203.9	187.5
Operating Earnings (Loss):	(0.9)	1.8	(4.9)	3.9
Total Assets	440.3		440.3		310.0
Corporate
Segment Reporting Information
Operating Earnings (Loss):	(12.0)	$ (13.7)	(23.8)	$ (28.5)
Total Assets	$ 186.0		$ 186.0		$ 168.9