Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	May 28, 2022	May 29, 2021
Sales and operating income data
Net sales	$ 356,635	$ 326,006
Operating income (loss)	33,216	16,042
Intersegment eliminations
Sales and operating income data
Net sales	(11,472)	(8,753)
Architectural Framing Systems
Sales and operating income data
Net sales	163,292	136,768
Operating income (loss)	23,665	8,371
Architectural Services
Sales and operating income data
Net sales	103,388	90,732
Operating income (loss)	2,927	4,226
Architectural Glass
Sales and operating income data
Net sales	76,265	83,031
Operating income (loss)	5,169	2,128
Large-Scale Optical
Sales and operating income data
Net sales	25,162	24,228
Operating income (loss)	6,498	5,847
Corporate and other
Sales and operating income data
Operating income (loss)	$ (5,043)	$ (4,530)