Business Segment Data - Schedule of Sales and Operating Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2024	Aug. 26, 2023	Aug. 31, 2024	Aug. 26, 2023
Sales and operating income data
Segment net sales	$ 342,440	$ 353,675	$ 673,956	$ 715,388
Segment operating income (loss)	41,965	40,553	83,346	74,320
Intersegment eliminations
Sales and operating income data
Segment net sales	(6,861)	(10,931)	(15,451)	(22,456)
Architectural Framing Systems
Sales and operating income data
Segment operating income (loss)	17,141	21,060	35,477	41,005
Architectural Framing Systems | Operating Segments
Sales and operating income data
Segment net sales	141,350	158,801	274,522	322,963
Architectural Glass
Sales and operating income data
Segment operating income (loss)	21,068	17,434	38,159	33,955
Architectural Glass | Operating Segments
Sales and operating income data
Segment net sales	90,101	94,096	176,804	191,298
Architectural Services
Sales and operating income data
Segment operating income (loss)	6,130	3,519	11,753	2,923
Architectural Services | Operating Segments
Sales and operating income data
Segment net sales	98,018	88,064	197,045	177,482
Large-Scale Optical
Sales and operating income data
Segment operating income (loss)	3,793	4,663	8,639	10,188
Large-Scale Optical | Operating Segments
Sales and operating income data
Segment net sales	19,832	23,645	41,036	46,101
Corporate and Other
Sales and operating income data
Segment operating income (loss)	$ (6,167)	$ (6,123)	$ (10,682)	$ (13,751)