XML 25 R15.htm IDEA: XBRL DOCUMENT
v3.25.2

Regulatory Assets and Liabilities | 6 Months Ended
--- | ---
Jun. 30, 2025
Regulated Operations [Abstract] |
Regulatory Assets and Liabilities | Regulatory Assets and Liabilities Regulatory assets and liabilities were comprised of the following as of June 30, 2025 and December 31, 2024:
| Recovery Period |  | June 30, 2025 |  | December 31, 2024
Regulatory Assets |  |  |  |  |
Property-related temporary differences (tax benefits flowed through to customers) | Indefinite |  | $ | 178,279 |  |  | $ | 178,279 |
IRMA long-term accounts receivable | Various |  | 35,084 |  |  | 46,278 |
MWRAM long-term regulatory asset | 1 - 2 years |  | 31,308 |  |  | 16,353 |
Asset retirement obligations, net | Indefinite |  | 30,322 |  |  | 28,883 |
Other accrued benefits | Indefinite |  | 26,702 |  |  | 25,439 |
Tank coating | Various |  | 19,753 |  |  | 21,477 |
General District Balancing Account receivable | Various |  | 9,609 |  |  | 9,393 |
Customer Assistance Program and Rate Support Fund accounts receivable | 1 year |  | 8,767 |  |  | 9,910 |
Incremental Cost Balancing Accounts (ICBA) | 1 year |  | 6,708 |  |  | 8,251 |
Net WRAM and Modified Cost Balancing Account (MCBA) long-term accounts receivable | Various |  | 3,657 |  |  | 3,633 |
Recoverable property losses | Various |  | 2,297 |  |  | 2,633 |
Other regulatory assets | Various |  | 7,433 |  |  | 6,877 |
Total Regulatory Assets |  |  | $ | 359,919 |  |  | $ | 357,406 |
Regulatory Liabilities |  |  |  |  |
Cost of removal |  |  | $ | 503,820 |  |  | $ | 483,108 |
Pension and retiree group health |  |  | 173,964 |  |  | 174,708 |
Future tax benefits due to customers |  |  | 104,861 |  |  | 106,184 |
Other components of net periodic benefit cost |  |  | 21,194 |  |  | 18,287 |
Pension Cost Balancing Account |  |  | 16,048 |  |  | 14,143 |
PFAS settlement proceeds |  |  | 8,458 |  |  | — |
ICBA |  |  | 4,884 |  |  | 6,003 |
Health Cost Balancing Account |  |  | 4,341 |  |  | 3,630 |
Net WRAM and MCBA long-term payable |  |  | 3,089 |  |  | 3,064 |
Conservation Expense Balancing Account |  |  | 2,889 |  |  | 3,294 |
Other regulatory liabilities |  |  | 2,109 |  |  | 2,130 |
Total Regulatory Liabilities |  |  | $ | 845,657 |  |  | $ | 814,551 |
Short-term regulatory assets and liabilities are excluded from the above table. The short-term regulatory assets were $63.2 million as of June 30, 2025 and $55.9 million as of December 31, 2024. The short-term regulatory assets as of June 30, 2025 primarily consisted of IRMA, MWRAM, and ICBA receivables. As of December 31, 2024, the short-term regulatory assets primarily consisted of IRMA and MWRAM receivables. The short-term regulatory assets are included in current assets under regulatory balancing accounts on the unaudited Condensed Consolidated Balance Sheets. The short-term portion of regulatory liabilities was $17.6 million as of June 30, 2025 and $22.6 million as of December 31, 2024. The short-term regulatory liabilities as of June 30, 2025 consisted of Tax Cuts and Jobs Act (TCJA) regulatory liabilities, ICBA regulatory liabilities, PFAS settlement proceeds (see Note 9, Commitments and Contingencies), and IRMA regulatory liabilities. As of December 31, 2024, the short-term regulatory liabilities primarily consisted of TCJA regulatory liabilities, ICBA regulatory liabilities, and IRMA regulatory liabilities. The short-term regulatory liabilities are included in current liabilities under regulatory balancing accounts on the unaudited Condensed Consolidated Balance Sheets. The PFAS settlement proceeds in the table above represents amounts the Company does not expect to reclassify to Contributions in Aid of Construction (CIAC) in the next 12 months. The Company is required by the Commissions to provide the benefit of the PFAS settlement proceeds to customers through CIAC once PFAS related remediation projects are placed in service. Since the Company is required to provide the benefit of the settlement proceeds to customers, the Company recorded the PFAS settlement proceeds as a regulatory liability and will reclassify them to CIAC once the related projects are placed in service.

X
- Definition The entire disclosure for public utilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 980 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/980/tableOfContent + Details
Name: | us-gaap_PublicUtilitiesDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RegulatedOperationsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration