Business Segment Data (Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas) (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 27, 2021	Feb. 29, 2020	Mar. 02, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 1,230,774	$ 1,387,439	$ 1,402,637
Long-Lived Assets	298,443	324,386	315,823
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	1,115,872	1,254,311	1,259,319
Long-Lived Assets	285,007	307,782	297,072
CANADA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	102,721	120,498	128,735
Long-Lived Assets	9,707	11,130	12,563
Brazil
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	12,181	12,630	14,583
Long-Lived Assets	$ 3,729	$ 5,474	$ 6,188