XML 37 R21.htm IDEA: XBRL DOCUMENT
v3.25.1

Regulatory Matters (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2025
Regulated Operations [Abstract] |
Schedule of regulatory assets, less regulatory liabilities in the consolidated balance sheets for continuing operations | Regulatory assets, less regulatory liabilities, included in the consolidated balance sheets are as follows:
(dollars in thousands) |  | March 31, 2025 |  | December 31, 2024
GSWC |  |  |  |
2025 general rate case memorandum account (unbilled revenue) |  | $ | 4,416 |  |  | $ | — |
2022/2023 general rate case memorandum accounts (unbilled revenue) |  | 34,494 |  |  | 37,711 |
Water revenue adjustment mechanism, net of modified cost balancing account |  | 23,421 |  |  | 29,738 |
Asset retirement obligations |  | 7,660 |  |  | 7,501 |
Flowed-through deferred income taxes, net |  | 13,909 |  |  | 12,506 |
Low income rate assistance balancing accounts |  | 9,835 |  |  | 8,834 |
Other regulatory assets |  | 12,138 |  |  | 11,352 |
Excess deferred income taxes |  | (63,610) |  |  | (63,682) |
Pensions and other post-retirement obligations |  | (24,115) |  |  | (25,179) |
Other regulatory liabilities |  | (927) |  |  | (608) |
Total GSWC |  | $ | 17,221 |  |  | $ | 18,173 |
BVES |  |  |  |
Derivative instrument memorandum account (Note 5) |  | $ | 13,094 |  |  | $ | 8,823 |
2023/2024 general rate case memorandum accounts (unbilled revenue) |  | 10,036 |  |  | 9,777 |
Wildfire mitigation and other fire prevention related costs memorandum accounts |  | 14,755 |  |  | 14,681 |
Other regulatory assets |  | 9,890 |  |  | 8,853 |
Other regulatory liabilities |  | (5,404) |  |  | (5,628) |
Total BVES |  | $ | 42,371 |  |  | $ | 36,506 |
Total AWR |  | $ | 59,592 |  |  | $ | 54,679 |

X
- Definition Tabular disclosure of regulatory assets, less regulatory liabilities, included in consolidated balance sheets for continuing operations. + References No definition available. + Details
Name: | awr_ScheduleOfRegulatoryAssetsLiabilitiesTableTextBlock
Namespace Prefix: | awr_
Data Type: | dtr-types1: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