Divestitures (Details) - USD ($)	3 Months Ended	12 Months Ended
	Feb. 26, 2021	Feb. 25, 2022	Feb. 26, 2021	Feb. 28, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses	$ 72.6	$ 0	$ 0	$ 72,600,000
Net Assets	47.8		47.8
Business Combination, Contingent Consideration, Liability	$ 3.8		3.8
Gain (Loss) on Disposition of Business			$ 21.0
Polyvision
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Revenue				61,500,000
Gross profit				18,600,000
Disposal Group, Including Discontinued Operation, Operating Income (Loss)				$ 6,400,000