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Regulatory Matters (Tables) | 6 Months Ended
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Jun. 30, 2022
Regulated Operations [Abstract] |
Schedule of Regulatory Assets, Net | Regulatory assets, net are comprised of the following as of June 30, 2022, and December 31, 2021:
|  | June 30, 2022 |  | December 31, 2021
Regulatory assets: |  |  |  |
Income tax temporary differences, net |  | $ | 25,946 |  |  | 22,420 |
Postretirement pensions and other postretirement benefits |  | 64,022 |  |  | 62,197 |
Business combinations debt premium, net |  | 18,667 |  |  | 19,937 |
Balancing and memorandum accounts, net |  | 24,772 |  |  | 38,334 |
Water Rate Adjustment |  | (1,176) |  |  | 2,588 |
Other, net |  | 9,922 |  |  | 9,145 |
Total regulatory assets, net in Condensed Consolidated Balance Sheets |  | 142,153 |  |  | 154,621 |
Less: current regulatory assets, net |  | 2,841 |  |  | 2,629 |
Total regulatory assets, net, less current portion |  | $ | 139,312 |  |  | 151,992 |
Public Utilities General Disclosures | Balancing and memorandum accounts recorded to regulatory assets, net for the three and six months ended June 30, 2022, and 2021 as follows:
| Three months ended June 30, 2022 |  | Three months ended June 30, 2021
Beginning Balance |  | Regulatory Asset Increase (Decrease) |  | Refunds (Collections) Adjustments |  |  |  | Ending Balance |  | Beginning Balance |  | Regulatory Asset Increase (Decrease) |  | Refunds (Collections) Adjustments |  |  |  | Ending Balance
Revenue accounts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
MWRAM | $ | 19,060 |  |  | 2,036 |  |  | — |  |  |  |  | 21,096 |  |  | $ | 13,853 |  |  | 1,424 |  |  | 1 |  |  |  |  | 15,278 |
WCMA | (3,061) |  |  | (1,000) |  |  | (10,900) |  |  |  |  | (14,961) |  |  | 666 |  |  | — |  |  | 2 |  |  |  |  | 668 |
Cost of capital memorandum account | (1,564) |  |  | (4) |  |  | — |  |  |  |  | (1,568) |  |  | (1,561) |  |  | (1) |  |  | — |  |  |  |  | (1,562) |
All others | (73) |  |  | 490 |  |  | — |  |  |  |  | 417 |  |  | (1,313) |  |  | 147 |  |  | 2 |  |  |  |  | (1,164) |
Total revenue accounts | $ | 14,362 |  |  | 1,522 |  |  | (10,900) |  |  |  |  | 4,984 |  |  | $ | 11,645 |  |  | 1,570 |  |  | 5 |  |  |  |  | 13,220 |
Cost-recovery accounts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Water supply costs | 10,789 |  |  | 322 |  |  | — |  |  |  |  | 11,111 |  |  | 8,910 |  |  | 984 |  |  | 1 |  |  |  |  | 9,895 |
Pension | 5,006 |  |  | 63 |  |  | — |  |  |  |  | 5,069 |  |  | 3,844 |  |  | 366 |  |  | — |  |  |  |  | 4,210 |
Hydro Generation Research, Development and Demonstration Memorandum Account (“PRVMA”) | 632 |  |  | 1 |  |  | (90) |  |  |  |  | 543 |  |  | 1,027 |  |  | — |  |  | (99) |  |  |  |  | 928 |
COVID-19 Catastrophic Event Memorandum Account (“CEMA”) | 2,438 |  |  | 148 |  |  | — |  |  |  |  | 2,586 |  |  | 2,266 |  |  | 352 |  |  | — |  |  |  |  | 2,618 |
All others | 573 |  |  | (94) |  |  | — |  |  |  |  | 479 |  |  | 445 |  |  | 1 |  |  | — |  |  |  |  | 446 |
Total cost-recovery accounts | $ | 19,438 |  |  | 440 |  |  | (90) |  |  |  |  | 19,788 |  |  | $ | 16,492 |  |  | 1,703 |  |  | (98) |  |  |  |  | 18,097 |
Total | $ | 33,800 |  |  | 1,962 |  |  | (10,990) |  |  |  |  | 24,772 |  |  | $ | 28,137 |  |  | 3,273 |  |  | (93) |  |  |  |  | 31,317 |
| Six months ended June 30, 2022 |  | Six months ended June 30, 2021
Beginning Balance |  | Regulatory Asset Increase (Decrease) |  | Refunds (Collections) Adjustments |  |  |  | Ending Balance |  | Beginning Balance |  | Regulatory Asset Increase (Decrease) |  | Refunds (Collections) Adjustments |  |  |  | Ending Balance
Revenue accounts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
MWRAM | $ | 16,866 |  |  | 4,229 |  |  | 1 |  |  |  |  | 21,096 |  |  | $ | 12,077 |  |  | 3,200 |  |  | 1 |  |  |  |  | 15,278 |
WCMA | 3,534 |  |  | (1,100) |  |  | (17,395) |  |  |  |  | (14,961) |  |  | 666 |  |  | — |  |  | 2 |  |  |  |  | 668 |
Cost of capital memorandum account | (1,563) |  |  | (5) |  |  | — |  |  |  |  | (1,568) |  |  | (1,561) |  |  | (1) |  |  | — |  |  |  |  | (1,562) |
All others | (386) |  |  | 802 |  |  | 1 |  |  |  |  | 417 |  |  | (1,139) |  |  | (28) |  |  | 3 |  |  |  |  | (1,164) |
Total revenue accounts | $ | 18,451 |  |  | 3,926 |  |  | (17,393) |  |  |  |  | 4,984 |  |  | $ | 10,043 |  |  | 3,171 |  |  | 6 |  |  |  |  | 13,220 |
Cost-recovery accounts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Water supply costs | 10,545 |  |  | 566 |  |  | — |  |  |  |  | 11,111 |  |  | 8,123 |  |  | 1,771 |  |  | 1 |  |  |  |  | 9,895 |
Pension | 4,941 |  |  | 128 |  |  | — |  |  |  |  | 5,069 |  |  | 3,478 |  |  | 732 |  |  | — |  |  |  |  | 4,210 |
PRVMA | 707 |  |  | 2 |  |  | (166) |  |  |  |  | 543 |  |  | 1,108 |  |  | — |  |  | (180) |  |  |  |  | 928 |
CEMA | 3,245 |  |  | (659) |  |  | — |  |  |  |  | 2,586 |  |  | 2,266 |  |  | 352 |  |  | — |  |  |  |  | 2,618 |
All others | 445 |  |  | 34 |  |  | — |  |  |  |  | 479 |  |  | 445 |  |  | 1 |  |  | — |  |  |  |  | 446 |
Total cost-recovery accounts | $ | 19,883 |  |  | 71 |  |  | (166) |  |  |  |  | 19,788 |  |  | $ | 15,420 |  |  | 2,856 |  |  | (179) |  |  |  |  | 18,097 |
Total | $ | 38,334 |  |  | 3,997 |  |  | (17,559) |  |  |  |  | 24,772 |  |  | $ | 25,463 |  |  | 6,027 |  |  | (173) |  |  |  |  | 31,317 |

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