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Quarterly Unaudited Financial Data
 12 Months Ended
Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]  
QUARTERLY UNAUDITED FINANCIAL DATA
QUARTERLY UNAUDITED FINANCIAL DATA

GIBRALTAR INDUSTRIES, INC.
QUARTERLY UNAUDITED FINANCIAL DATA
(in thousands, except per share data)
 
 
2018 Quarters Ended
 
March 31
 
June 30
 
September 30
 
December 31
 
Total
Net sales
$
215,337

 
$
266,036

 
$
280,086

 
$
240,913

 
$
1,002,372

Gross profit
$
48,318

 
$
70,503

 
$
70,279

 
$
53,260

 
$
242,360

Income from operations
$
13,843

 
$
32,274

 
$
29,404

 
$
18,447

 
$
93,968

Interest expense
$
3,269

 
$
3,130

 
$
2,906

 
$
2,759

 
$
12,064

Net income from continuing operations
$
8,352

 
$
22,837

 
$
19,503

 
$
13,117

 
$
63,809

Total net income
$
8,352

 
$
22,837

 
$
19,503

 
$
13,117

 
$
63,809

Income per share from continuing operations:
 
 
 
 
 
 
 
 
Basic
$
0.26

 
$
0.72

 
$
0.61

 
$
0.41

 
$
2.00

Diluted
$
0.26

 
$
0.70

 
$
0.60

 
$
0.40

 
$
1.96

 
 
2017 Quarters Ended
 
March 31
 
June 30
 
September 30
 
December 31
 
Total
Net sales
$
206,605

 
$
247,627

 
$
274,574

 
$
258,112

 
$
986,918

Gross profit
$
49,255

 
$
61,825

 
$
68,735

 
$
56,729

 
$
236,544

Income from operations
$
9,679

 
$
24,930

 
$
35,693

 
$
22,547

 
$
92,849

Interest expense
$
3,576

 
$
3,550

 
$
3,486

 
$
3,420

 
$
14,032

Net income from continuing operations
$
3,996

 
$
13,174

 
$
20,619

 
$
25,176

 
$
62,965

Net loss from discontinued operations
$
—

 
$
(405
)
 
$
—

 
$
—

 
$
(405
)
Total net income
$
3,996

 
$
12,769

 
$
20,619

 
$
25,176

 
$
62,560

Income per share from continuing operations:
 
 
 
 
 
 
 
 
Basic
$
0.13

 
$
0.41

 
$
0.65

 
$
0.79

 
$
1.98

Diluted
$
0.12

 
$
0.41

 
$
0.64

 
$
0.78

 
$
1.95

Loss per share from discontinued operations:
 
 
 
 
 
 
 
 
Basic
$
—

 
$
(0.01
)
 
$
—

 
$
—

 
$
(0.01
)
Diluted
$
—

 
$
(0.01
)
 
$
—

 
$
—

 
$
(0.01
)