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Earnings Per Share | 3 Months Ended
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Mar. 31, 2020
Earnings Per Share [Abstract] |
Earnings Per Share | Note 10. Earnings Per Share The following table sets forth the computation of basic and diluted earnings per share from continuing operations for the three months ended March 31, 2020 and 2019 (in thousands, except per share data).
|  | Three Months Ended |
|  | March 31, |
|  | 2020 |  |  | 2019 |
Numerator: |  |  |  |  |  |  |  |
Income from continuing operations |  | $ | 36,862 |  |  | $ | 37,565 |
Denominator: |  |  |  |  |  |  |  |
Basic |  |  |  |  |  |  |  |
Weighted average common shares outstanding |  |  | 54,571 |  |  |  | 54,287 |
Diluted |  |  |  |  |  |  |  |
Stock options (1) |  |  | 993 |  |  |  | 1,311 |
Restricted stock units and awards (1) |  |  | 296 |  |  |  | 274 |
Contingent shares (2) |  |  | 85 |  |  |  | 43 |
Diluted weighted average common shares outstanding (3) |  |  | 55,945 |  |  |  | 55,915 |
Basic earnings per share from continuing operations |  | $ | 0.68 |  |  | $ | 0.69 |
Diluted earnings per share from continuing operations |  | $ | 0.66 |  |  | $ | 0.67 |
| (1) | Approximately 33 thousand share based awards were excluded from the calculation of diluted earnings per share for the three months ended March 31, 2020 as their effect would be anti-dilutive whereas 642 thousand share based awards were excluded from the calculation of diluted earnings per share for the three months ended March 31, 2019.
| (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. Refer to Note 11, Business Combinations, for further details.
| (3) | The denominator used in calculated diluted earnings per share did not include approximately 332 thousand and 173 thousand performance share units for the three months ended March 31, 2020 and 2019, respectively. The performance conditions associated with these performance share units were not met and consequently none of these performance share units were considered as issuable for the three months ended March 31, 2020 and 2019.

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