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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2016
Accounting Policies [Abstract]  
Schedule of Calculation of Numerator and Denominator in EPS
The following table sets forth the computation of basic and diluted earnings per share:

 
Year Ended December 31,
 
2016
 
2015
 
2014
Numerator:
 
 
 
 
 
Income from continuing operations for calculating basic and diluted earnings per share
$
60,127

 
$
60,710

 
$
85,438

Loss from discontinued operations
—

 
—

 
(272
)
Net income for calculating basic and diluted earnings per share
$
60,127

 
$
60,710

 
$
85,166

 
 
 
 
 
 
Denominator (in thousands):
 
 
 
 
 
Weighted-average common shares for calculating basic earnings per share
34,997

 
28,138

 
28,671

Effect of dilutive securities:
 
 
 
 
 
Stock options and nonvested awards
7

 
188

 
399

Weighted-average common shares for calculating diluted earnings per share
35,004

 
28,326

 
29,070

 
 
 
 
 
 
Basic earnings per share:
 
 
 
 
 
Income from continuing operations
$
1.72

 
$
2.16

 
$
2.98

Loss from discontinued operations
—

 
—

 
(0.01
)
Net income per basic share
$
1.72

 
$
2.16

 
$
2.97

 
 
 
 
 
 
Diluted earnings per share:
 
 
 
 
 
Income from continuing operations
$
1.72

 
$
2.14

 
$
2.94

Loss from discontinued operations
—

 
—

 
(0.01
)
Net income per diluted share
$
1.72

 
$
2.14

 
$
2.93