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Regulatory Assets and Liabilities | 6 Months Ended
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Jun. 30, 2024
Regulated Operations [Abstract] |
Regulatory Assets and Liabilities | Regulatory Assets and Liabilities Regulatory assets and liabilities were comprised of the following as of June 30, 2024 and December 31, 2023:
| Recovery Period |  | June 30, 2024 |  | December 31, 2023
Regulatory Assets |  |  |  |  |
Property-related temporary differences (tax benefits flowed through to customers) | Indefinite |  | $ | 158,486 |  |  | $ | 158,486 |
IRMA long-term accounts receivable | 1 - 2 years |  | 92,065 |  |  | 3,430 |
MWRAM | 1 year |  | 38,566 |  |  | — |
Other accrued benefits | Indefinite |  | 26,917 |  |  | 25,363 |
Asset retirement obligations, net | Indefinite |  | 28,311 |  |  | 26,686 |
Tank coating | Various |  | 20,480 |  |  | 19,602 |
Customer assistance program (CAP) and Rate support fund (RSF) accounts receivable | 1 year |  | 10,015 |  |  | 2,459 |
Net WRAM and Modified Cost Balancing Account (MCBA) long-term accounts receivable | Various |  | 5,199 |  |  | 10,738 |
Pension Cost Balancing Account (PCBA) | Various |  | 4,829 |  |  | 4,182 |
Recoverable property losses | Various |  | 2,791 |  |  | 3,121 |
Other regulatory assets | Various |  | 9,839 |  |  | 3,554 |
Total Regulatory Assets |  |  | $ | 397,498 |  |  | $ | 257,621 |
Regulatory Liabilities |  |  |  |  |
Cost of removal |  |  | $ | 464,980 |  |  | $ | 447,356 |
Future tax benefits due to customers |  |  | 118,051 |  |  | 118,051 |
Pension and retiree group health |  |  | 102,120 |  |  | 88,728 |
Other components of net periodic benefit cost |  |  | 15,160 |  |  | 10,348 |
PCBA |  |  | 12,642 |  |  | 8,972 |
Incremental cost balancing account (ICBA) |  |  | 12,704 |  |  | — |
IRMA long-term regulatory liability |  |  | 8,032 |  |  | — |
Health Cost Balancing Account (HCBA) |  |  | 3,606 |  |  | 3,242 |
Net WRAM and MCBA long-term payable |  |  | 2,860 |  |  | 2,071 |
Conservation Expense Balancing Account |  |  | 1,058 |  |  | 1,200 |
RSF regulatory liability |  |  | — |  |  | 2,116 |
Other regulatory liabilities |  |  | 1,629 |  |  | 1,633 |
Total Regulatory Liabilities |  |  | $ | 742,842 |  |  | $ | 683,717 |
The IRMA regulatory asset increase was for the additional amount the Company would have billed customers in 2023 and the first five months of 2024 had the 2021 GRC been approved on time. The IRMA regulatory liability represents additional CAP and RSF credits the Company would have provided to customers in 2023 and the first five months of 2024 had the 2021 GRC been approved on time. The MWRAM regulatory asset represents the difference between the revenue received for actual metered sales through the tiered volumetric rate and the revenue that would have been received with the same actual metered sales if a uniform rate had been in effect. The ICBA tracks differences between the authorized prices of water production costs and actual prices of water production costs. During the six months ended June 30, 2024, the Company recorded a regulatory liability for certain service territories of $12.7 million as the authorized water production costs were higher than actual water production costs. The Company also recorded a regulatory asset for certain service territories of $3.5 million as the authorized water production costs were lower than actual water production costs. The ICBA regulatory asset is part of “Other regulatory assets” in the table above. Short-term regulatory assets and liabilities are excluded from the above table. The short-term regulatory assets were $5.5 million as of June 30, 2024 and $64.2 million as of December 31, 2023. The short-term regulatory assets as of June 30, 2024 and December 31, 2023, primarily consisted of net WRAM and MCBA, and PCBA receivables and are included in current assets as part of regulatory balancing accounts on the unaudited Condensed Consolidated Balance Sheets. The short-term portion of regulatory liabilities were $12.8 million as of June 30, 2024 and $21.5 million as of December 31, 2023. The short-term regulatory liabilities as of June 30, 2024 and December 31, 2023, primarily consisted of Tax Cuts and Jobs Act regulatory liabilities and HCBA liabilities and are included in current liabilities as part of regulatory balancing accounts on the unaudited Condensed Consolidated Balance Sheets.

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