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Earnings Per Share | 12 Months Ended
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Dec. 31, 2019
Earnings Per Share [Abstract] |
Earnings Per Share | EARNINGS PER SHARE Basic earnings per share are computed based on the weighted average number of common shares outstanding during the year. Diluted earnings per share are computed using the weighted average number of common shares outstanding and the effect of dilutive potential common shares outstanding during the year using the treasury stock method. Potential common shares consist of employee stock purchase plan shares and contingently issuable time-based and performance-based RSUs, along with associated DERs. Net income attributable to PGE common shareholders is the same for both the basic and diluted earnings per share computations. The reconciliations of the denominators of the basic and diluted earnings per share computations are as follows (in thousands):
| Years Ended December 31,
| 2019 |  | 2018 |  | 2017
Weighted average common shares outstanding—basic | 89,353 |  |  | 89,215 |  |  | 89,056 |
Dilutive effect of potential common shares | 206 |  |  | 132 |  |  | 120 |
Weighted average common shares outstanding—diluted | 89,559 |  |  | 89,347 |  |  | 89,176 |

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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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