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v3.20.4

Selected Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Jun. 30, 2020 | Dec. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Operating revenues | $ 124,200 | $ 133,688 | $ 121,278 | $ 109,077 | $ 112,993 | $ 134,496 | $ 124,647 | $ 101,733 |  |  | $ 488,243 | $ 473,869 | $ 436,816
Net Income | $ 20,211 | $ 26,530 | $ 25,612 | $ 14,072 | $ 16,700 | $ 28,006 | $ 26,784 | $ 12,852 |  |  | $ 86,425 | $ 84,342 | $ 63,871
Earnings Per Share, Basic | $ 0.55 | $ 0.72 | $ 0.69 | $ 0.38 | $ 0.45 | $ 0.76 | $ 0.72 | $ 0.35 |  |  | $ 2.34 | $ 2.28 | $ 1.73
Earnings Per Share, Diluted | $ 0.54 | $ 0.72 | $ 0.69 | $ 0.38 | $ 0.45 | $ 0.76 | $ 0.72 | $ 0.35 |  |  | $ 2.33 | $ 2.28 | $ 1.72
Operating Income | $ 29,277 | $ 39,807 | $ 35,716 | $ 25,699 | $ 24,724 | $ 42,724 | $ 39,430 | $ 20,195 |  |  | $ 130,499 | $ 127,073 | $ 100,983
GSWC |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues | 73,438 | 98,701 | 94,753 | 82,392 | 81,233 | 107,245 | 95,548 | 75,352 |  |  | 349,284 | 359,378 | 329,608
Net Income | 11,707 | 21,143 | 20,919 | 11,202 | 11,981 | 23,362 | 22,298 | 9,022 |  |  | 64,971 | 66,663 | 48,012
Operating Income | $ 17,480 | $ 33,149 | $ 30,175 | 22,092 | $ 18,746 | $ 36,982 | $ 34,037 | $ 15,327 |  |  | 102,896 | 105,092 | 80,562
Water Service Utility Operations [Member] | GSWC |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | 330,637 | 319,830 | 295,258
Retroactive pretax income adjustment due to GRC delay |  |  |  | $ 4,000 |  |  |  |  |  |  |  |  |
Operating Income |  |  |  |  |  |  |  |  |  |  | $ 97,896 | 93,895 | 74,342
Electric: | GSWC |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  |  | 39,548 | 34,350
Net Income |  |  |  |  |  |  |  |  |  | $ 5,422 |  |  |
Retroactive pretax income adjustment due to GRC delay |  |  |  |  |  |  |  |  | $ 1,400 |  |  | 2,300 |
Operating Income |  |  |  |  |  |  |  |  |  |  |  | $ 11,197 | $ 6,220

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