Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 25, 2023	Nov. 26, 2022	Nov. 25, 2023	Nov. 26, 2022
Sales and operating income data
Segment net sales	$ 339,714	$ 367,847	$ 1,055,102	$ 1,096,591
Segment operating income (loss)	37,647	34,761	111,967	100,049
Intersegment eliminations
Sales and operating income data
Segment net sales	(11,506)	(7,398)	(33,962)	(28,878)
Architectural Framing Systems
Sales and operating income data
Segment operating income (loss)	16,981	22,089	57,986	66,266
Architectural Framing Systems | Operating Segments [Member]
Sales and operating income data
Segment net sales	139,585	165,013	462,548	501,172
Architectural Glass
Sales and operating income data
Segment operating income (loss)	15,164	7,461	49,119	19,087
Architectural Glass | Operating Segments [Member]
Sales and operating income data
Segment net sales	90,964	81,541	282,262	235,158
Architectural Services
Sales and operating income data
Segment operating income (loss)	5,288	6,032	8,211	14,449
Architectural Services | Operating Segments [Member]
Sales and operating income data
Segment net sales	94,662	102,031	272,144	312,151
Large-Scale Optical
Sales and operating income data
Segment operating income (loss)	7,100	7,109	17,288	19,598
Large-Scale Optical | Operating Segments [Member]
Sales and operating income data
Segment net sales	26,009	26,660	72,110	76,988
Corporate and other*
Sales and operating income data
Segment operating income (loss)	$ (6,886)	$ (7,930)	$ (20,637)	$ (19,351)