Business Segment Data (Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas) (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 25, 2023	Feb. 26, 2022	Feb. 27, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 1,440,696	$ 1,313,977	$ 1,230,774
Long-Lived Assets	248,867	249,995	298,443
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	1,301,168	1,194,141	1,115,872
Long-Lived Assets	239,847	239,264	285,007
CANADA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	120,565	102,027	102,721
Long-Lived Assets	6,330	7,742	9,707
Brazil
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	18,963	17,809	12,181
Long-Lived Assets	$ 2,690	$ 2,989	$ 3,729