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v3.19.3.a.u2

Regulatory Matters 4 (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2005 | Jul. 31, 2005 | Dec. 31, 2019
Regulatory matters: |  |  |
Regulatory asset authorized under settlement |  |  | $ 2.7
GSWC | Costs deferred for future recovery on Aerojet case |  |  |
Regulatory matters: |  |  |
Increase in Revenue Requirement, Recoverable through Surcharges |  | $ 21.3 |
Recovery period |  | 20 years |
Reimbursement to recover costs |  |  | $ 17.5
GSWC | Costs deferred for future recovery on Aerojet case | Maximum |  |  |
Regulatory matters: |  |  |
Recovery period | 20 years |  |
GSWC | Water Revenue Adjustment Mechanism Net of Modified Cost Balancing Account [Member] | Maximum |  |  |
Regulatory matters: |  |  |
Recovery period |  |  | 24 months

X
- Definition Represents the amount of increase in revenue requirement for difference between the allocated general office costs authorized by the CPUC November 2010 Decision and what was then in rates for allocated general office costs. + References No definition available. + Details
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Balance Type: | debit
Period Type: | duration

X
- Definition Represents the recovery periods of the surcharge billed to the customers. + References No definition available. + Details
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Namespace Prefix: | awr_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition -- None. No documentation exists for this element. -- + References No definition available. + Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of deferred cost, excluding capitalized cost related to contract with customer; classified as noncurrent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(10)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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Period Type: | instant

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- Definition The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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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- Details
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- Details
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- Details
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Namespace Prefix: |
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- Details
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