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Regulatory Matters: (Tables) | 6 Months Ended
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Jun. 30, 2021
Regulated Operations [Abstract] |
Schedule of regulatory assets, less regulatory liabilities in the consolidated balance sheets for continuing operations | Regulatory assets, less regulatory liabilities, included in the consolidated balance sheets are as follows:
(dollars in thousands) |  | June 30, 2021 |  | December 31, 2020
GSWC |  |  |  |
Water Revenue Adjustment Mechanism and Modified Cost Balancing Account |  | $ | 20,787 |  |  | $ | 13,741 |
Costs deferred for future recovery on Aerojet case |  | 6,116 |  |  | 6,751 |
Pensions and other post-retirement obligations (Note 8) |  | 63,809 |  |  | 65,576 |
COVID-19 memorandum accounts |  | 6,226 |  |  | 4,119 |
Excess deferred income taxes |  | (73,668) |  |  | (74,185) |
Flow-through taxes, net |  | (7,323) |  |  | (9,722) |
Other regulatory assets |  | 11,491 |  |  | 10,670 |
Various refunds to customers |  | (4,187) |  |  | (4,577) |
Total GSWC |  | $ | 23,251 |  |  | $ | 12,373 |
BVESI |  |  |  |
Derivative unrealized (gain) loss (Note 5) |  | (2,810) |  | 1,537
Other regulatory assets |  | 3,297 |  | 2,629
Total AWR |  | $ | 23,738 |  |  | $ | 16,539 |

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