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Earnings Per Common Share (EPS) | 9 Months Ended
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Sep. 30, 2017
Earnings Per Common Share (EPS) [Abstract] |
Earnings Per Common Share (EPS) | (3) Earnings Per Common Share (EPS) ﻿ Basic EPS and diluted EPS are calculated by dividing net income attributable to Tutor Perini Corporation by the following: for basic EPS, the weighted-average number of common shares outstanding during the period; and for diluted EPS, the sum of the weighted-average number of both outstanding common shares and potentially dilutive securities, which for the Company can include restricted stock units, unexercised stock options and the Convertible Notes, as defined in Note 6. The Company calculates the effect of these potentially dilutive securities using the treasury stock method. ﻿
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﻿ | Three Months Ended September 30, |  | Nine Months Ended September 30,
﻿(in thousands, except per common share amounts) | 2017 |  | 2016 |  | 2017 |  | 2016
﻿Net income attributable to Tutor Perini Corporation | $ | 23,584 |  | $ | 28,801 |  | $ | 67,444 |  | $ | 65,561
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﻿Weighted-average common shares outstanding, basic |  | 49,775 |  |  | 49,185 |  |  | 49,602 |  |  | 49,132
﻿Effect of dilutive restricted stock units and stock options |  | 812 |  |  | 915 |  |  | 1,166 |  |  | 517
﻿Weighted-average common shares outstanding, diluted |  | 50,587 |  |  | 50,100 |  |  | 50,768 |  |  | 49,649
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﻿Earnings per common share: |  |  |  |  |  |  |  |  |  |  |
﻿Basic earnings per common share | $ | 0.47 |  | $ | 0.59 |  | $ | 1.36 |  | $ | 1.33
﻿Diluted earnings per common share | $ | 0.47 |  | $ | 0.57 |  | $ | 1.33 |  | $ | 1.32
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﻿Anti-dilutive shares not included above |  | 912 |  |  | 610 |  |  | 752 |  |  | 1,339
﻿ With regard to diluted EPS and the impact of the Convertible Notes on the diluted EPS calculation, because the Company has the intent and ability to settle the principal amount of the Convertible Notes in cash, per Accounting Standards Codification (“ASC”) 260, Earnings Per Share, the settlement of the principal amount has no impact on diluted EPS.

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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 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64863997&loc=d3e1278-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64863997&loc=d3e1252-109256 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=65016374&loc=d3e4984-109258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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