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Balancing and Memorandum Accounts (Tables) | 6 Months Ended
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Jun. 30, 2021
Regulated Operations [Abstract] |
Public Utilities General Disclosures | Balancing and memorandum accounts recorded to regulatory assets, net for the three and six months ended June 30, 2021 and 2020 as follows:
| Three months ended June 30, 2021 |  | Three months ended June 30, 2020
Beginning Balance |  | Regulatory Asset Increase (Decrease) |  | Refunds (Collections) Adjustments |  |  |  | Ending Balance |  | Beginning Balance |  | Regulatory Asset Increase (Decrease) |  | Refunds (Collections) Adjustments |  |  |  | Ending Balance
Revenue accounts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Monterey WRAM | $ | 13,853 |  |  | 1,424 |  |  | 1 |  |  |  |  | 15,278 |  |  | $ | 8,958 |  |  | 1,591 |  |  | — |  |  |  |  | 10,549 |
Cost of capital memorandum account | (1,561) |  |  | (1) |  |  | — |  |  |  |  | (1,562) |  |  | (1,558) |  |  | (2) |  |  | — |  |  |  |  | (1,560) |
Tax memorandum account | 333 |  |  | — |  |  | — |  |  |  |  | 333 |  |  | 332 |  |  | — |  |  | — |  |  |  |  | 332 |
All others | (980) |  |  | 147 |  |  | 4 |  |  |  |  | (829) |  |  | (1,074) |  |  | 40 |  |  | — |  |  |  |  | (1,034) |
Total revenue accounts | $ | 11,645 |  |  | 1,570 |  |  | 5 |  |  |  |  | 13,220 |  |  | $ | 6,658 |  |  | 1,629 |  |  | — |  |  |  |  | 8,287 |
Cost-recovery accounts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Water supply costs | 8,910 |  |  | 984 |  |  | 1 |  |  |  |  | 9,895 |  |  | 5,061 |  |  | 838 |  |  | — |  |  |  |  | 5,899 |
Pension | 3,844 |  |  | 366 |  |  | — |  |  |  |  | 4,210 |  |  | 2,886 |  |  | 99 |  |  | — |  |  |  |  | 2,985 |
Hydro Generation Research, Development and Demonstration Memorandum Account (“PRVMA”) | 1,027 |  |  | — |  |  | (99) |  |  |  |  | 928 |  |  | — |  |  | — |  |  | — |  |  |  |  | — |
COVID-19 Catastrophic Event Memorandum Account (“CEMA”) | 2,266 |  |  | 352 |  |  | — |  |  |  |  | 2,618 |  |  | — |  |  | — |  |  | — |  |  |  |  | — |
All others | 445 |  |  | 1 |  |  | — |  |  |  |  | 446 |  |  | 443 |  |  | 1 |  |  | — |  |  |  |  | 444 |
Total cost-recovery accounts | $ | 16,492 |  |  | 1,703 |  |  | (98) |  |  |  |  | 18,097 |  |  | $ | 8,390 |  |  | 938 |  |  | — |  |  |  |  | 9,328 |
Total | $ | 28,137 |  |  | 3,273 |  |  | (93) |  |  |  |  | 31,317 |  |  | $ | 15,048 |  |  | 2,567 |  |  | — |  |  |  |  | 17,615 |
| Six months ended June 30, 2021 |  | Six months ended June 30, 2020
Beginning Balance |  | Regulatory Asset Increase (Decrease) |  | Refunds (Collections) Adjustments |  |  |  | Ending Balance |  | Beginning Balance |  | Regulatory Asset Increase (Decrease) |  | Refunds (Collections) Adjustments |  |  |  | Ending Balance
Revenue accounts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Monterey WRAM | $ | 12,077 |  |  | 3,200 |  |  | 1 |  |  |  |  | 15,278 |  |  | $ | 7,015 |  |  | 3,561 |  |  | (27) |  |  |  |  | 10,549 |
Cost of capital memorandum account | (1,561) |  |  | (1) |  |  | — |  |  |  |  | (1,562) |  |  | (1,553) |  |  | (7) |  |  | — |  |  |  |  | (1,560) |
Tax memorandum account | 333 |  |  | — |  |  | — |  |  |  |  | 333 |  |  | (6,643) |  |  | (3) |  |  | 6,978 |  |  |  |  | 332 |
All others | (806) |  |  | (28) |  |  | 5 |  |  |  |  | (829) |  |  | (759) |  |  | (165) |  |  | (110) |  |  |  |  | (1,034) |
Total revenue accounts | $ | 10,043 |  |  | 3,171 |  |  | 6 |  |  |  |  | 13,220 |  |  | $ | (1,940) |  |  | 3,386 |  |  | 6,841 |  |  |  |  | 8,287 |
Cost-recovery accounts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Water supply costs | 8,123 |  |  | 1,771 |  |  | 1 |  |  |  |  | 9,895 |  |  | 4,328 |  |  | 1,605 |  |  | (34) |  |  |  |  | 5,899 |
Pension | 3,478 |  |  | 732 |  |  | — |  |  |  |  | 4,210 |  |  | 2,449 |  |  | 514 |  |  | 22 |  |  |  |  | 2,985 |
PRVMA | 1,108 |  |  | — |  |  | (180) |  |  |  |  | 928 |  |  | — |  |  | — |  |  | — |  |  |  |  | — |
CEMA | 2,266 |  |  | 352 |  |  | — |  |  |  |  | 2,618 |  |  | — |  |  | — |  |  | — |  |  |  |  | — |
All others | 445 |  |  | 1 |  |  | — |  |  |  |  | 446 |  |  | 446 |  |  | 2 |  |  | (4) |  |  |  |  | 444 |
Total cost-recovery accounts | $ | 15,420 |  |  | 2,856 |  |  | (179) |  |  |  |  | 18,097 |  |  | $ | 7,223 |  |  | 2,121 |  |  | (16) |  |  |  |  | 9,328 |
Total | $ | 25,463 |  |  | 6,027 |  |  | (173) |  |  |  |  | 31,317 |  |  | $ | 5,283 |  |  | 5,507 |  |  | 6,825 |  |  |  |  | 17,615 |

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