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Regulatory Matters: BVES General Rate Case and Renewables Portfolio Standard (Details) (GSWC, USD $) In Thousands, unless otherwise specified |  |  | 6 Months Ended
--- | --- | --- | ---
Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 BVES General Rate Case
Regulatory matters: |  |  |
Net regulatory assets | $ 113,305 | $ 122,681 |
Portion of deferred rate case costs required to be written off, if DRA prevails |  |  | 50.00%
Percentage of deferred rate case cost to be borne by shareholders |  |  | 50.00%

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- Definition Represents the portion of deferred rate case cost borne by shareholders. + References No definition available. + Details
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- Definition Represents the portion of deferred rate case costs required to be written off, if DRA prevails. + References No definition available. + Details
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Namespace Prefix: | awr_
Data Type: | num:percentItemType
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- Details
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Namespace Prefix: | awr_
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- Definition The net amount of all regulatory assets less all regulatory liabilities as of the end of the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382 + Details
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