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Earnings Per Share | 12 Months Ended
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Dec. 31, 2017
Earnings Per Share [Abstract] |
Earnings Per Share | Note 15. 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, 2017, 2016 and 2015 (in thousands, except per share data):
|  | Year Ended December 31, |
|  | 2017 |  |  | 2016 |  |  | 2015 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations |  | $ | 51,032 |  |  | $ | 40,607 |  |  | $ | 35,003 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Basic |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common shares outstanding |  |  | 53,862 |  |  |  | 52,321 |  |  |  | 50,280 |
Diluted |  |  |  |  |  |  |  |  |  |  |  |
Stock options (1) |  |  | 1,499 |  |  |  | 870 |  |  |  | 876 |
Restricted stock awards |  |  | 328 |  |  |  | 261 |  |  |  | 277 |
Contingent shares (2) |  |  | - |  |  |  | 61 |  |  |  | 29 |
Convertible senior subordinated notes (3) |  |  | — |  |  |  | — |  |  |  | 1,231 |
Diluted weighted average common shares outstanding |  |  | 55,689 |  |  |  | 53,513 |  |  |  | 52,693 |
Earnings Per Share: |  |  |  |  |  |  |  |  |  |  |  |
Basic earnings per share from continuing operations |  | $ | 0.95 |  |  | $ | 0.78 |  |  | $ | 0.70 |
Diluted earnings per share from continuing operations |  | $ | 0.92 |  |  | $ | 0.76 |  |  | $ | 0.66 |
(1) | For the years ended December 31, 2017, 2016 and 2015, a total of 0.5 million, 0.8 million and 1.5 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 18, Acquisitions.
(3) | The 2010 Notes were retired on October 1, 2015 with the amounts available under the credit facility. The dilutive impact of potential shares to be issued related to the 2010 Notes was based on the average share price of $9.62 in 2015, which exceeded the conversion price of $7.41.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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