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Unaudited Quarterly Financial Data | 12 Months Ended
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Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract] |
Unaudited Quarterly Financial Data | Unaudited Quarterly Financial Data Summarized quarterly financial data is as follows:
| 2019 Quarter Ended
| March |  | June |  | September |  | December
Operating revenue | $ | 77,682 |  |  | 102,965 |  |  | 113,997 |  |  | 125,838 |
Operating income | 12,408 |  |  | 21,971 |  |  | 17,084 |  |  | 6,016 |
SJW Group net income | 5,873 |  |  | 13,538 |  |  | 9,478 |  |  | (5,486 | )
Comprehensive income | 5,873 |  |  | 13,538 |  |  | 9,478 |  |  | (5,360 | )
Earnings per share: |  |  |  |  |  |  |
—Basic | 0.21 |  |  | 0.48 |  |  | 0.33 |  |  | (0.20 | )
—Diluted | 0.21 |  |  | 0.47 |  |  | 0.33 |  |  | (0.19 | )
Market price range of stock: |  |  |  |  |  |  |
—High | 63.76 |  |  | 63.40 |  |  | 69.23 |  |  | 74.47 |
—Low | 54.74 |  |  | 59.83 |  |  | 61.23 |  |  | 67.13 |
Dividend per share | 0.30 |  |  | 0.30 |  |  | 0.30 |  |  | 0.30 |
| 2018 Quarter Ended
| March |  | June |  | September |  | December
Operating revenue | $ | 75,042 |  |  | 99,086 |  |  | 124,853 |  |  | 98,718 |
Operating income | 7,331 |  |  | 22,799 |  |  | 25,828 |  |  | 17,482 |
SJW Group net income | 1,285 |  |  | 12,871 |  |  | 15,788 |  |  | 8,823 |
Comprehensive income | 1,285 |  |  | 12,871 |  |  | 15,788 |  |  | 8,823 |
Earnings per share: |  |  |  |  |  |  |
—Basic | 0.06 |  |  | 0.63 |  |  | 0.77 |  |  | 0.38 |
—Diluted | 0.06 |  |  | 0.62 |  |  | 0.76 |  |  | 0.38 |
Market price range of stock: |  |  |  |  |  |  |
—High | 63.47 |  |  | 68.15 |  |  | 67.29 |  |  | 65.31 |
—Low | 51.96 |  |  | 51.68 |  |  | 56.12 |  |  | 52.63 |
Dividend per share | 0.28 |  |  | 0.28 |  |  | 0.28 |  |  | 0.28 |

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- References No definition available. + Details
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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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