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Dividends and Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2017
Dividends and Earnings Per Share |
Schedule of cash dividends paid or declared |
Declaration Date |  | Record Date |  | Payable Date |  | Amount Per Share
February 22, 2016 |  | March 31, 2016 |  | April 15, 2016 |  | $ | 0.055
May 2, 2016 |  | June 30, 2016 |  | July 15, 2016 |  | $ | 0.055
August 3, 2016 |  | September 30, 2016 |  | October 14, 2016 |  | $ | 0.055
November 2, 2016 |  | December 31, 2016 |  | January 16, 2017 |  | $ | 0.055
February 21, 2017 |  | March 31, 2017 |  | April 15, 2017 |  | $ | 0.055
May 5, 2017 |  | June 30, 2017 |  | July 14, 2017 |  | $ | 0.055
August 2, 2017 |  | September 29, 2017 |  | October 14, 2017 |  | $ | 0.055
November 2, 2017 |  | December 29, 2017 |  | January 15, 2018 |  | $ | 0.060
Schedule of computation of basic and diluted earnings per share | The table below presents the computation of basic and diluted earnings per share for the years ended December 31, 2017, 2016 and 2015 follows (in thousands, except per share amounts):
|  | 2017 |  | 2016 |  | 2015
Numerator: |  |  |  |  |  |  |  |  |
Net income attributable to Primoris |  | $ | 72,354 |  | $ | 26,723 |  | $ | 36,872
Denominator: |  |  |  |  |  |  |  |  |
Weighted average shares for computation of basic earnings per share |  |  | 51,481 |  |  | 51,762 |  |  | 51,647
Dilutive effect of shares issued to independent directors |  |  | 3 |  |  | 3 |  |  | 2
Dilutive effect of restricted stock units (1) |  |  | 257 |  |  | 224 |  |  | 149
Weighted average shares for computation of diluted earnings per share |  |  | 51,741 |  |  | 51,989 |  |  | 51,798
Earnings per share attributable to Primoris: |  |  |  |  |  |  |  |  |
Basic |  | $ | 1.41 |  | $ | 0.52 |  | $ | 0.71
Diluted |  | $ | 1.40 |  | $ | 0.51 |  | $ | 0.71
Represents the effect of the grant of 259,065 shares of Restricted Stock Units and 3,097 vested Dividend Equivalent Units.

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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