XML 45 R29.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Regulatory Matters (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2016
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:
|  | December 31,
(dollars in thousands) |  | 2016 |  | 2015
GSWC |  |  |  |  |  |
Water Revenue Adjustment Mechanism and Modified Cost Balancing Account |  | $ | 47,340 |  |  | $ | 45,171 |
Costs deferred for future recovery on Aerojet case |  | 11,820 |  |  | 12,699 |
Pensions and other post-retirement obligations (Note 11) |  | 28,118 |  |  | 21,996 |
Derivative unrealized loss (Note 4) |  | 4,901 |  |  | 7,053 |
Flow-through taxes, net (Note 10) |  | 20,134 |  |  | 16,176 |
Low income rate assistance balancing accounts |  | 8,272 |  |  | 8,699 |
General rate case memorandum accounts |  | 13,929 |  |  | 4,433 |
Other regulatory assets |  | 17,633 |  |  | 21,235 |
Various refunds to customers |  | (5,866 | ) |  | (4,766 | )
Total |  | $ | 146,281 |  |  | $ | 132,696 |

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: | nonnum: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