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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted | The following table reconciles the numerators and denominators of the basic and diluted per common share computations for net income attributable to Sterling common stockholders:
| Years Ended December 31,
| 2020 |  | 2019 |  | 2018
Numerator: |  |  |  |  |
Net income attributable to Sterling common stockholders | $ | 42,306 |  |  | $ | 39,901 |  |  | $ | 25,187 |
Denominator: |  |  |  |  |
Weighted average common shares outstanding — basic | 27,859 |  |  | 26,671 |  |  | 26,903 |
Shares for dilutive unvested stock and warrants | 336 |  |  | 448 |  |  | 291 |
Weighted average common shares outstanding — diluted | 28,195 |  |  | 27,119 |  |  | 27,194 |
Basic net income per share attributable to Sterling common stockholders | $ | 1.52 |  |  | $ | 1.50 |  |  | $ | 0.94 |
Diluted net income per share attributable to Sterling common stockholders | $ | 1.50 |  |  | $ | 1.47 |  |  | $ | 0.93 |

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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/2009/role/commonPracticeRef -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 + Details
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