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Segment Information (Tables)
 3 Months Ended
Jun. 03, 2017
Segment Reporting [Abstract]  
Sales and operating income data
 
Three Months Ended
(In thousands)
June 3, 2017
 
May 28, 2016
Net sales from operations
 
 
 
Architectural Glass
$
97,735

 
$
93,360

Architectural Framing Systems
110,492

 
81,132

Architectural Services
50,150

 
62,820

Large-Scale Optical
18,603

 
20,028

Intersegment eliminations
(4,673
)
 
(9,460
)
Net sales
$
272,307

 
$
247,880

Operating income (loss) from operations
 
 
 
Architectural Glass
$
9,322

 
$
9,531

Architectural Framing Systems
11,964

 
10,232

Architectural Services
782

 
3,181

Large-Scale Optical
4,050

 
4,652

Corporate and other
(2,012
)
 
(1,347
)
Operating income
$
24,106

 
$
26,249