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Regulatory Maters - Public Utilities General Disclosures (Details) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Aug. 27, 2020 | Dec. 31, 2021 | Dec. 31, 2020
Revenue accounts: |  |  |
Beginning Balance |  | $ 10,043 | $ (1,940)
Regulatory Asset Increase (Decrease) |  | 8,779 | 2,516
Refunds (Collections) Adjustments |  | (371) | 9,467
Ending Balance |  | 18,451 | 10,043
Cost-recovery accounts: |  |  |
Beginning Balance |  | 15,420 | 7,223
Regulatory Asset Increase (Decrease) |  | 4,865 | 8,324
Refunds (Collections) Adjustments |  | (402) | (127)
Ending Balance |  | 19,883 | 15,420
Total |  |  |
Beginning Balance |  | 25,463 | 5,283
Regulatory Asset Increase (Decrease) |  | 13,644 | 10,840
Refunds (Collections) Adjustments |  | (773) | 9,340
Ending Balance |  | 38,334 | 25,463
MWRAM |  |  |
Revenue accounts: |  |  |
Beginning Balance |  | 12,077 | 7,015
Regulatory Asset Increase (Decrease) |  | 4,788 | 2,464
Refunds (Collections) Adjustments |  | 1 | 2,598
Ending Balance |  | 16,866 | 12,077
WCMA |  |  |
Revenue accounts: |  |  |
Beginning Balance |  | 666 | 708
Regulatory Asset Increase (Decrease) |  | 3,243 | 0
Refunds (Collections) Adjustments |  | (375) | (42)
Ending Balance |  | 3,534 | 666
Cost of capital memorandum accounts |  |  |
Revenue accounts: |  |  |
Beginning Balance |  | (1,561) | (1,553)
Regulatory Asset Increase (Decrease) |  | (2) | (8)
Refunds (Collections) Adjustments |  | 0 | 0
Ending Balance |  | (1,563) | (1,561)
Tax memorandum account |  |  |
Revenue accounts: |  |  |
Beginning Balance |  | 333 | (6,643)
Regulatory Asset Increase (Decrease) |  | 0 | (2)
Refunds (Collections) Adjustments |  | 0 | 6,978
Ending Balance |  | 333 | 333
All others |  |  |
Revenue accounts: |  |  |
Beginning Balance |  | (1,472) | (1,467)
Regulatory Asset Increase (Decrease) |  | 750 | 62
Refunds (Collections) Adjustments |  | 3 | (67)
Ending Balance |  | (719) | (1,472)
Cost-recovery accounts: |  |  |
Beginning Balance |  | 445 | 446
Regulatory Asset Increase (Decrease) |  | 0 | 3
Refunds (Collections) Adjustments |  | 0 | (4)
Ending Balance |  | 445 | 445
Water supply costs |  |  |
Cost-recovery accounts: |  |  |
Beginning Balance |  | 8,123 | 4,328
Regulatory Asset Increase (Decrease) |  | 2,421 | 3,828
Refunds (Collections) Adjustments |  | 1 | (33)
Ending Balance |  | 10,545 | 8,123
Pension |  |  |
Cost-recovery accounts: |  |  |
Beginning Balance |  | 3,478 | 2,449
Regulatory Asset Increase (Decrease) |  | 1,464 | 1,008
Refunds (Collections) Adjustments |  | (1) | 21
Ending Balance |  | 4,941 | 3,478
PRVMA |  |  |
Cost-recovery accounts: |  |  |
Beginning Balance |  | 1,108 | 0
Regulatory Asset Increase (Decrease) | $ 1,219 | 1 | 1,219
Refunds (Collections) Adjustments |  | (402) | (111)
Ending Balance |  | 707 | 1,108
CEMA |  |  |
Cost-recovery accounts: |  |  |
Beginning Balance |  | 2,266 | 0
Regulatory Asset Increase (Decrease) |  | 979 | 2,266
Refunds (Collections) Adjustments |  | 0 | 0
Ending Balance |  | $ 3,245 | $ 2,266

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