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Earnings Per Share
 12 Months Ended
Dec. 31, 2018
Earnings Per Share [Abstract]  
Earnings Per Share

Note 16. Earnings Per Share

The following table sets forth the reconciliation of the numerator and the denominator of basic earnings per share and diluted earnings per share from continuing operations for the years ended December 31, 2018, 2017 and 2016 (in thousands, except per share data):

 

 

 

Year Ended December 31,

 

 

 

2018

 

 

2017

 

 

2016

 

Numerator:

 

 

 

 

 

 

 

 

 

 

 

 

Income from continuing operations

 

$

61,573

 

 

$

51,032

 

 

$

40,607

 

Denominator:

 

 

 

 

 

 

 

 

 

 

 

 

Basic

 

 

 

 

 

 

 

 

 

 

 

 

Weighted average common shares outstanding

 

 

54,561

 

 

 

53,862

 

 

 

52,321

 

Diluted

 

 

 

 

 

 

 

 

 

 

 

 

Stock options (1)

 

 

1,542

 

 

 

1,499

 

 

 

870

 

Restricted stock awards

 

 

302

 

 

 

328

 

 

 

261

 

Contingent shares (2)

 

 

82

 

 

 

—

 

 

 

61

 

Diluted weighted average common shares

   outstanding

 

 

56,487

 

 

 

55,689

 

 

 

53,513

 

Earnings Per Share:

 

 

 

 

 

 

 

 

 

 

 

 

Basic earnings per share from continuing operations

 

$

1.13

 

 

$

0.95

 

 

$

0.78

 

Diluted earnings per share from continuing

   operations

 

$

1.09

 

 

$

0.92

 

 

$

0.76

 

 

(1)

For the years ended December 31, 2018, 2017 and 2016, a total of 0.4 million, 0.5 million and 0.8 million stock based awards, respectively, were excluded from the calculation of diluted earnings per share as their exercise prices would render them anti-dilutive.

(2)

Contingent shares represent additional shares to be issued for purchase price earned by former owners of businesses acquired by us once future conditions have been met. For further details, refer to Note 19, Acquisitions.