Business Segment Data (Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas) (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 26, 2022	Feb. 27, 2021	Feb. 29, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 1,313,977	$ 1,230,774	$ 1,387,439
Long-Lived Assets	249,995	298,443	324,386
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	1,194,141	1,115,872	1,254,311
Long-Lived Assets	239,264	285,007	307,782
CANADA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	102,027	102,721	120,498
Long-Lived Assets	7,742	9,707	11,130
Brazil
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	17,809	12,181	12,630
Long-Lived Assets	$ 2,989	$ 3,729	$ 5,474