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General (Policies) | 3 Months Ended
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Mar. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Basis of Accounting, Policy | The unaudited interim financial information has been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and in accordance with the instructions for Form 10-Q and Rule 10-01 of Regulation S-X promulgated by the Securities and Exchange Commission (the “SEC”). The Notes to Consolidated Financial Statements in SJW Group’s 2019 Annual Report on Form 10-K should be read with the accompanying unaudited condensed consolidated financial statements.
Recently Adopted Accounting Pronouncements, Policy | Recently Adopted Accounting Pronouncements In June 2016, the FASB issued ASU 2016-13, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments,” and subsequent amendments. Topic 326 requires measurement and recognition of expected credit losses for financial assets held. This was effective for SJW Group in the first quarter of fiscal 2020. The adoption of ASU 2016-13 did not have a material impact on our consolidated financial statements.
Revenue Recognition, Policy | Revenue Water sales are seasonal in nature and influenced by weather conditions. The timing of precipitation and climatic conditions can cause seasonal water consumption by customers to vary significantly. Due to the seasonal nature of the water business, the operating results for interim periods are not indicative of the operating results for a 12-month period. Revenue is generally higher in the warm, dry summer months when water usage and sales are greater, and lower in the winter months when cooler temperatures and increased precipitation curtail water usage and sales. The major streams of revenue for SJW Group are as follows:
| Three months ended March 31,
| 2020 |  | 2019
Revenue from contracts with customers | $ | 105,136 |  |  | 78,926 |
Alternative revenue programs, net | 504 |  |  | (1,979 | )
Other balancing and memorandum accounts revenue, net | 8,744 |  |  | (631 | )
Rental income | 1,370 |  |  | 1,366 |
| $ | 115,754 |  |  | 77,682 |
Earnings Per Share, Policy | Basic earnings per share is calculated using income available to common stockholders, divided by the weighted average number of shares outstanding during the period. Diluted earnings per share is calculated using income available to common stockholders divided by the weighted average number of shares of common stock including both shares outstanding and shares potentially issuable in connection with restricted common stock awards under SJW Group’s Long-Term Incentive Plan (as amended, the “Incentive Plan”) and under the performance stock plans assumed through the business combination with Connecticut Water Service, Inc. (“CTWS”) and shares potentially issuable under the Employee Stock Purchase Plan (“ESPP”).
Utility Plant Depreciation, Policy | A portion of depreciation expense is allocated to administrative and general expense.

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- Definition Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257 + Details
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- Definition Disclosure of accounting policy for systematically allocating capitalized costs to periods that benefit from the use thereof. Includes, but is not limited to, methods used, such as composite depreciation, descriptions of regulatory treatment for estimated removal and disposal costs, and description of amortization of plant-related regulatory assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b),(c) -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18823-107790 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 + Details
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