Restructuring and Related Activities (Details 2) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Aug. 28, 2021	Feb. 27, 2021	Feb. 29, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance	$ 5,887	$ 3,263	$ 0
Restructuring expense	5,411	4,574
Payments	(2,689)	(1,311)
Other adjustments	(98)
Restructuring Reserve, Ending Balance	5,887	3,263	0
Corporate and Other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance	1,436	161	0
Restructuring expense	1,375	229
Payments	(100)	(68)
Other adjustments	0
Restructuring Reserve, Ending Balance	1,436	161	0
Architectural Framing Systems
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance	2,353	2,872	0
Restructuring expense	1,963	4,020
Payments	(2,384)	(1,148)
Other adjustments	(98)
Restructuring Reserve, Ending Balance	2,353	2,872	0
Architectural Glass
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance	2,098	230	0
Restructuring expense	2,073	325
Payments	(205)	(95)
Other adjustments	0
Restructuring Reserve, Ending Balance	$ 2,098	$ 230	$ 0