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General Revenue (Tables) | 9 Months Ended
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Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Major Streams of Revenue | The major streams of revenue for SJW Group are as follows:
| Three months ended September 30, |  | Nine months ended September 30,
| 2020 |  | 2019 |  | 2020 |  | 2019
Revenue from contracts with customers | $ | 167,045 |  |  | 130,777 |  |  | $ | 414,344 |  |  | 314,003 |
Alternative revenue programs, net | 1,324 |  |  | (11,912 | ) |  | 4,877 |  |  | (14,218 | )
Other balancing and memorandum accounts revenue, net | (3,909 | ) |  | (6,221 | ) |  | 5,388 |  |  | (9,229 | )
Rental income | 1,403 |  |  | 1,353 |  |  | 4,217 |  |  | 4,088 |
| $ | 165,863 |  |  | 113,997 |  |  | $ | 428,826 |  |  | 294,644 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 + Details
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