XML 36 R23.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Regulatory Matters: (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Dec. 31, 2015
Regulatory matters: |  |  |
Regulatory asset not accruing carrying costs | $ 56,200 |  |
Other Liabilities, Current | 10,421 |  | $ 10,209
Pension and other post-retirement obligations |  |  |
Regulatory matters: |  |  |
Regulatory asset not accruing carrying costs | 23,300 |  |
Derivative unrealized loss |  |  |
Regulatory matters: |  |  |
Regulatory asset not accruing carrying costs | 5,581 |  |
GOLDEN STATE WATER COMPANY |  |  |
Regulatory matters: |  |  |
Regulatory assets | 154,092 |  | 132,696
Other Liabilities, Current | 10,312 |  | 9,921
GOLDEN STATE WATER COMPANY | Water Revenue Adjustment Mechanism, net of Modified Cost Balancing Account |  |  |
Regulatory matters: |  |  |
Regulatory Asset Amount Billed to Customers as Surcharges | 12,900 | $ 1,700 |
Regulatory assets | 65,444 |  | 45,171
GOLDEN STATE WATER COMPANY | Costs deferred for future recovery on Aerojet case |  |  |
Regulatory matters: |  |  |
Regulatory assets | 12,037 |  | 12,699
GOLDEN STATE WATER COMPANY | Pension and other post-retirement obligations |  |  |
Regulatory matters: |  |  |
Regulatory assets | 24,835 |  | 21,996
GOLDEN STATE WATER COMPANY | Derivative unrealized loss |  |  |
Regulatory matters: |  |  |
Regulatory assets |  |  | 7,053
GOLDEN STATE WATER COMPANY | Flow-through taxes, net |  |  |
Regulatory matters: |  |  |
Regulatory assets | 17,634 |  | 16,176
GOLDEN STATE WATER COMPANY | Low income rate assistance balancing accounts |  |  |
Regulatory matters: |  |  |
Regulatory assets | 8,378 |  | 8,699
GOLDEN STATE WATER COMPANY | Other regulatory assets |  |  |
Regulatory matters: |  |  |
Regulatory assets | 26,309 |  | 25,668
GOLDEN STATE WATER COMPANY | Various refunds to customers |  |  |
Regulatory matters: |  |  |
Regulatory assets | $ (6,126) |  | $ (4,766)

X
- Definition Represents amount billed to customers as surcharges. + References No definition available. + Details
Name: | awr_RegulatoryAssetAmountBilledToCustomersAsSurcharges
Namespace Prefix: | awr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the regulatory asset not accruing carrying costs as of the balance sheet date. + References No definition available. + Details
Name: | awr_RegulatoryAssetNotAccruingCarryingCosts
Namespace Prefix: | awr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition -- None. No documentation exists for this element. -- + References No definition available. + 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 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 2: 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 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 + Details
Name: | us-gaap_OtherLiabilitiesCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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

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

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