XML 24 R46.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Regulatory Matters (Details 3) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013
Regulatory matters: |  |
Other Liabilities, Current | $ 18,760,000 us-gaap_OtherLiabilitiesCurrent | $ 12,962,000 us-gaap_OtherLiabilitiesCurrent
GSWC |  |
Regulatory matters: |  |
Under (over) collection | 125,704,000 us-gaap_NetRegulatoryAssets / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember | 122,681,000 us-gaap_NetRegulatoryAssets / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember
Other Liabilities, Current | 18,659,000 us-gaap_OtherLiabilitiesCurrent / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember | 12,880,000 us-gaap_OtherLiabilitiesCurrent / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember
Other Regulatory Assets Net [Member] |  |
Regulatory matters: |  |
Other Liabilities, Current | 5,500,000 us-gaap_OtherLiabilitiesCurrent / us-gaap_RegulatoryAssetAxis = awr_OtherRegulatoryAssetsNetMember |
Other Regulatory Assets Net [Member] | GSWC |  |
Regulatory matters: |  |
Under (over) collection | 17,487,000 us-gaap_NetRegulatoryAssets / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember / us-gaap_RegulatoryAssetAxis = awr_OtherRegulatoryAssetsNetMember | 25,086,000 us-gaap_NetRegulatoryAssets / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember / us-gaap_RegulatoryAssetAxis = awr_OtherRegulatoryAssetsNetMember
Low income rate assistance balancing accounts | GSWC |  |
Regulatory matters: |  |
Increase in Revenue Requirement, Recoverable through Surcharges | 700,000 awr_IncreaseInRevenueRequirementRecoverableThroughSurcharges / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember / us-gaap_RegulatoryAssetAxis = awr_LowIncomeRateAssistanceBalancingAccountsMember | 1,200,000 awr_IncreaseInRevenueRequirementRecoverableThroughSurcharges / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember / us-gaap_RegulatoryAssetAxis = awr_LowIncomeRateAssistanceBalancingAccountsMember
Under (over) collection | 9,109,000 us-gaap_NetRegulatoryAssets / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember / us-gaap_RegulatoryAssetAxis = awr_LowIncomeRateAssistanceBalancingAccountsMember | 9,979,000 us-gaap_NetRegulatoryAssets / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember / us-gaap_RegulatoryAssetAxis = awr_LowIncomeRateAssistanceBalancingAccountsMember
Pension Costs and Other Postretirement Benefit Costs [Member] | GSWC |  |
Regulatory matters: |  |
Regulatory Assets | 40,700,000 us-gaap_RegulatoryAssets / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember / us-gaap_RegulatoryAssetAxis = awr_PensionCostsAndOtherPostretirementBenefitCostsMember |
Under (over) collection | 43,426,000 us-gaap_NetRegulatoryAssets / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember / us-gaap_RegulatoryAssetAxis = awr_PensionCostsAndOtherPostretirementBenefitCostsMember | 20,241,000 us-gaap_NetRegulatoryAssets / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember / us-gaap_RegulatoryAssetAxis = awr_PensionCostsAndOtherPostretirementBenefitCostsMember
Two-way pension balancing account | Pension Costs and Other Postretirement Benefit Costs [Member] | GSWC |  |
Regulatory matters: |  |
Regulatory Assets | 2,700,000 us-gaap_RegulatoryAssets / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember / awr_PensionAndOtherPostRetirementObligationsAxis = awr_UnderCollectionInTwoWayPensionBalancingAccountMember / us-gaap_RegulatoryAssetAxis = awr_PensionCostsAndOtherPostretirementBenefitCostsMember |
Two-way pension balancing account | Purchase, production, distribution and sale of water | Pension Costs and Other Postretirement Benefit Costs [Member] | GSWC |  |
Regulatory matters: |  |
Regulatory Assets | 2,800,000 us-gaap_RegulatoryAssets / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember / awr_PensionAndOtherPostRetirementObligationsAxis = awr_UnderCollectionInTwoWayPensionBalancingAccountMember / us-gaap_RegulatoryAssetAxis = awr_PensionCostsAndOtherPostretirementBenefitCostsMember / us-gaap_StatementBusinessSegmentsAxis = awr_WaterServiceUtilityOperationsMember |
Two-way pension balancing account | Electric | Pension Costs and Other Postretirement Benefit Costs [Member] | GSWC |  |
Regulatory matters: |  |
Regulatory Assets | $ (124,000)us-gaap_RegulatoryAssets / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember / awr_PensionAndOtherPostRetirementObligationsAxis = awr_UnderCollectionInTwoWayPensionBalancingAccountMember / us-gaap_RegulatoryAssetAxis = awr_PensionCostsAndOtherPostretirementBenefitCostsMember / us-gaap_StatementBusinessSegmentsAxis = awr_ElectricServiceUtilityOperationsMember |

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
Name: | awr_IncreaseInRevenueRequirementRecoverableThroughSurcharges
Namespace Prefix: | awr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | awr_RegulatoryAssetsAndLiabilitiesLineItems
Namespace Prefix: | awr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_NetRegulatoryAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Aggregate carrying amount of current liabilities (due within one year or within the normal operating cycle if longer) not separately disclosed in the balance sheet. Includes costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered and of liabilities not separately disclosed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6911-107765 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6904-107765 + Details
Name: | us-gaap_OtherLiabilitiesCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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://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
Name: | us-gaap_RegulatoryAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | awr_PensionAndOtherPostRetirementObligationsAxis=awr_UnderCollectionInTwoWayPensionBalancingAccountMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=awr_GoldenStateWaterCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=awr_LowIncomeRateAssistanceBalancingAccountsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=awr_OtherRegulatoryAssetsNetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=awr_PensionCostsAndOtherPostretirementBenefitCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |