Business Segment Data - Schedule of Sales and Operating Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 30, 2024	Nov. 25, 2023	Nov. 30, 2024	Nov. 25, 2023
Sales and operating income data
Segment net sales	$ 341,344	$ 339,714	$ 1,015,300	$ 1,055,102
Segment operating income (loss)	28,629	37,647	111,975	111,967
Intersegment eliminations
Sales and operating income data
Segment net sales	(5,048)	(11,506)	(20,499)	(33,962)
Architectural Framing Systems
Sales and operating income data
Segment operating income (loss)	12,710	16,981	48,187	57,986
Architectural Framing Systems | Operating Segments
Sales and operating income data
Segment net sales	138,039	139,585	412,561	462,548
Architectural Glass
Sales and operating income data
Segment operating income (loss)	10,118	15,164	48,277	49,119
Architectural Glass | Operating Segments
Sales and operating income data
Segment net sales	70,236	90,964	247,040	282,262
Architectural Services
Sales and operating income data
Segment operating income (loss)	9,730	5,288	21,483	8,211
Architectural Services | Operating Segments
Sales and operating income data
Segment net sales	104,921	94,662	301,966	272,144
Large-Scale Optical
Sales and operating income data
Segment operating income (loss)	4,842	7,100	13,481	17,288
Large-Scale Optical | Operating Segments
Sales and operating income data
Segment net sales	33,196	26,009	74,232	72,110
Corporate and Other
Sales and operating income data
Segment operating income (loss)	$ (8,771)	$ (6,886)	$ (19,453)	$ (20,637)