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Unaudited Quarterly Financial Data | 12 Months Ended
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Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract] |
Unaudited Quarterly Financial Data | Unaudited Quarterly Financial Data Summarized quarterly financial data is as follows:
| 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 |
| 2017 Quarter Ended
| March |  | June |  | September |  | December
Operating revenue | $ | 69,045 |  |  | 102,073 |  |  | 124,578 |  |  | 93,529 |
Operating income | 10,833 |  |  | 30,787 |  |  | 38,245 |  |  | 18,214 |
SJW Group net income | 3,671 |  |  | 18,688 |  |  | 19,540 |  |  | 17,305 |
Comprehensive income | 3,787 |  |  | 18,744 |  |  | 19,620 |  |  | 17,732 |
Earnings per share: |  |  |  |  |  |  |
—Basic | 0.18 |  |  | 0.91 |  |  | 0.95 |  |  | 0.84 |
—Diluted | 0.18 |  |  | 0.90 |  |  | 0.94 |  |  | 0.84 |
Market price range of stock: |  |  |  |  |  |  |
—High | 55.30 |  |  | 53.00 |  |  | 57.43 |  |  | 68.13 |
—Low | 46.13 |  |  | 45.74 |  |  | 48.46 |  |  | 57.60 |
Dividend per share | 0.22 |  |  | 0.22 |  |  | 0.22 |  |  | 0.38 |

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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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