Goodwill and Other Identifiable Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 03, 2018	Mar. 04, 2017
Schedule of goodwill attributable to each business segment
Goodwill, Beginning	$ 101,334	$ 73,996
Goodwill acquired	84,162	27,444
Goodwill adjustments for purchase accounting	(5,859)
Foreign currency translation	1,319	(106)
Goodwill, Ending	180,956	101,334
Architectural Glass
Schedule of goodwill attributable to each business segment
Goodwill, Beginning	25,956	25,639
Goodwill acquired	0	0
Goodwill adjustments for purchase accounting	0
Foreign currency translation	15	317
Goodwill, Ending	25,971	25,956
Architectural Services
Schedule of goodwill attributable to each business segment
Goodwill, Beginning	1,120	1,120
Goodwill acquired	0	0
Goodwill adjustments for purchase accounting	0
Foreign currency translation	0	0
Goodwill, Ending	1,120	1,120
Architectural Framing Systems
Schedule of goodwill attributable to each business segment
Goodwill, Beginning	63,701	36,680
Goodwill acquired	84,162	27,444
Goodwill adjustments for purchase accounting	(5,859)
Foreign currency translation	1,304	(423)
Goodwill, Ending	143,308	63,701
Large-Scale Optical
Schedule of goodwill attributable to each business segment
Goodwill, Beginning	10,557	10,557
Goodwill acquired	0	0
Goodwill adjustments for purchase accounting	0
Foreign currency translation	0	0
Goodwill, Ending	$ 10,557	$ 10,557