Business Segment Data (Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 29, 2020	Nov. 30, 2019	Aug. 31, 2019	Jun. 01, 2019	Mar. 02, 2019	Dec. 01, 2018	Sep. 01, 2018	Jun. 02, 2018	Feb. 29, 2020	Mar. 02, 2019	Mar. 03, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 337,100	$ 337,916	$ 357,058	$ 355,365	$ 346,255	$ 357,718	$ 362,133	$ 336,531	$ 1,387,439	$ 1,402,637	$ 1,326,173
Long-Lived Assets	324,386				315,823				324,386	315,823	304,063
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									1,254,311	1,259,319	1,187,922
Long-Lived Assets	307,782				297,072				307,782	297,072	283,432
CANADA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									120,498	128,735	122,981
Long-Lived Assets	11,130				12,563				11,130	12,563	13,384
Brazil
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									12,630	14,583	15,270
Long-Lived Assets	$ 5,474				$ 6,188				$ 5,474	$ 6,188	$ 7,247