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Earnings Per Share (Tables)
 12 Months Ended
Dec. 31, 2018
Earnings Per Share [Abstract]  
Calculation Of Basic And Diluted Earnings (Loss) Per Common Share
The following tables summarize our calculation of Basic and Diluted Earnings (Loss) per Common Share (“EPS”) for the years ended December 31, 2018, 2017 and 2016 (in thousands, except share and per share data):
 
 
2018
 
2017
 
2016
Numerator:
 
 
 
 
 
Income from continuing operations attributable to EMCOR Group, Inc. common stockholders
$
285,876

 
$
228,053

 
$
185,077

Loss from discontinued operation, net of income taxes
(2,345
)
 
(857
)
 
(3,142
)
Net income attributable to EMCOR Group, Inc. common stockholders
$
283,531

 
$
227,196

 
$
181,935

Denominator:
 
 
 
 
 
Weighted average shares outstanding used to compute basic earnings (loss) per common share
58,112,838

 
59,254,256

 
60,769,808

Effect of dilutive securities—Share-based awards
330,629

 
364,713

 
436,984

Shares used to compute diluted earnings (loss) per common share
58,443,467

 
59,618,969

 
61,206,792

Basic earnings (loss) per common share:
 
 
 
 
 
From continuing operations attributable to EMCOR Group, Inc. common stockholders
$
4.92

 
$
3.85

 
$
3.05

From discontinued operation
(0.04
)
 
(0.01
)
 
(0.05
)
Net income attributable to EMCOR Group, Inc. common stockholders
$
4.88

 
$
3.84

 
$
3.00

Diluted earnings (loss) per common share:
 
 
 
 
 
From continuing operations attributable to EMCOR Group, Inc. common stockholders
$
4.89

 
$
3.83

 
$
3.02

From discontinued operation
(0.04
)
 
(0.01
)
 
(0.05
)
Net income attributable to EMCOR Group, Inc. common stockholders
$
4.85

 
$
3.82

 
$
2.97