Business Segment Data (Details Textual) $ in Thousands	12 Months Ended
	Feb. 27, 2021 USD ($)	Feb. 29, 2020 USD ($)	Mar. 02, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments	4
Project related charges		$ 16,700	$ 40,900
Project Related Insurance Proceeds	$ 15,000	15,000
Revenues	1,230,774	1,387,439	1,402,637
Geographic Concentration Risk | Revenue Benchmark [Member]
Segment Reporting Information [Line Items]
Revenues	$ 33,100	$ 54,700	$ 56,300
Export net sales as a percentage of consolidated net sales (percentage)	3.00%	3.00%	3.00%