Revenue, Receivables and Contract Assets and Liabilities (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Feb. 27, 2021	Feb. 29, 2020	Mar. 02, 2019
Disaggregation of Revenue [Line Items]
Total	$ 1,230,774	$ 1,387,439	$ 1,402,637
Recognized at shipment
Disaggregation of Revenue [Line Items]
Total	504,583	610,049	623,357
Recognized over time
Disaggregation of Revenue [Line Items]
Total	$ 726,191	$ 777,390	$ 779,280