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Earnings (Loss) Per Share of Common Stock (Tables) | 3 Months Ended
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Mar. 31, 2022
Earnings Per Share [Abstract] |
Schedule basic and Diluted Earnings Per Share | The computations of basic and diluted earnings (loss) per share of common stock are noted in the table below. Basic earnings (loss) per share of common stock is computed by dividing the net income (loss) attributable to California Water Service Group by the weighted average number of common shares outstanding during the period. RSAs are included in the weighted average common shares outstanding because the shares have all the same voting and dividend rights as issued and unrestricted common stock.
| Three Months Ended March 31
| 2022 |  | 2021
| (In thousands, except per share data)
Net income (loss) | $ | 894 |  |  | $ | (3,032) |
Net loss attributable to noncontrolling interests | (192) |  |  | — |
Net income (loss) attributable to California Water Service Group | $ | 1,086 |  |  | $ | (3,032) |
Weighted average common shares outstanding, basic | 53,731 |  |  | 50,440 |
Weighted average common shares outstanding, dilutive | 53,775 |  |  | 50,440 |
Earnings (loss) per share of common stock - basic | $ | 0.02 |  |  | $ | (0.06) |
Earnings (loss) per share of common stock - diluted | $ | 0.02 |  |  | $ | (0.06) |

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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=124432515&loc=d3e3550-109257 + Details
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