Employee Benefit Plans (Schedule of Components of Defined Benefit Pension Plans Net Periodic Benefit Cost) (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 27, 2021	Feb. 29, 2020	Mar. 02, 2019
Components of net periodic benefit cost
Interest cost	$ 346	$ 492	$ 506
Expected return on assets	(211)	(182)	(40)
Amortization of unrecognized net loss	260	219	226
Net periodic benefit cost	$ 395	$ 529	$ 692