Revenue, Receivables and Contract Assets and Liabilities (Details 6) - USD ($) $ in Thousands	12 Months Ended
	Feb. 27, 2021	Feb. 29, 2020	Mar. 02, 2019
Revenue from Contract with Customer [Abstract]
Accounts Receivable, Allowance for Credit Loss	$ (1,947)	$ (2,469)	$ (4,372)
Additions charged to costs and expenses	389	1,192
Deductions from allowance, net of recoveries	(887)	(3,085)
Other deductions	$ (24)	$ (10)