XML 69 R53.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Regulatory Matters (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020
Regulatory matters: |  |
Regulatory Asset Not Accruing Carrying Costs | $ 61,400,000 |
Total | (22,796,000) | $ 16,539,000
Water Revenue Adjustment Mechanism [Member] |  |
Regulatory matters: |  |
Regulatory adjustment | 7,100,000 |
Pension Costs and Other Postretirement Benefit Costs |  |
Regulatory matters: |  |
Regulatory Asset Not Accruing Carrying Costs | 24,900,000 |
Flow-through taxes, net |  |
Regulatory matters: |  |
Total | (6,300,000) |
Excess deferred income taxes |  |
Regulatory matters: |  |
Total | (77,000,000) |
GSWC |  |
Regulatory matters: |  |
Total | (24,082,000) | 12,373,000
Regulatory Asset CEMA | 1,700,000 |
GSWC | Various refunds to customers |  |
Regulatory matters: |  |
Total | (2,680,000) | (4,577,000)
GSWC | WRAM, net of MCBA |  |
Regulatory matters: |  |
Total | 13,326,000 | 13,741,000
GSWC | Water Revenue Adjustment Mechanism [Member] |  |
Regulatory matters: |  |
Total | (3,800,000) |
Deferred Revenues | 0 |
GSWC | Costs deferred for future recovery on Aerojet case |  |
Regulatory matters: |  |
Total | 5,210,000 | 6,751,000
GSWC | Pension Costs and Other Postretirement Benefit Costs |  |
Regulatory matters: |  |
Total | 25,212,000 | 65,576,000
Regulatory Assets | 25,000,000 |
GSWC | COVID-19 memorandum account |  |
Regulatory matters: |  |
Total | 1,663,000 | 4,119,000
GSWC | Flow-through taxes, net |  |
Regulatory matters: |  |
Total | (5,552,000) | (9,722,000)
GSWC | Excess deferred income taxes |  |
Regulatory matters: |  |
Total | (73,000,000) | (74,185,000)
GSWC | Other Regulatory Assets |  |
Regulatory matters: |  |
Total | 11,739,000 | 10,670,000
Bear Valley Electric Service, Inc. |  |
Regulatory matters: |  |
Regulatory Asset CEMA | 302,000 |
Bear Valley Electric Service, Inc. | Various refunds to customers |  |
Regulatory matters: |  |
Total | (8,189,000) | (6,822,000)
Bear Valley Electric Service, Inc. | Gain (Loss) on Derivative Instruments [Member] |  |
Regulatory matters: |  |
Total | (4,441,000) | 1,537,000
Bear Valley Electric Service, Inc. | Other Regulatory Assets |  |
Regulatory matters: |  |
Total | $ 13,916,000 | $ 9,451,000

X
- Definition Regulatory Asset CEMA + References No definition available. + Details
Name: | awr_RegulatoryAssetCEMA
Namespace Prefix: | awr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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 Amount of revenue recognized that was previously reported as deferred or unearned revenue. + References No definition available. + Details
Name: | us-gaap_DeferredRevenueRevenueRecognized1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The increase (decrease) during the reporting period in the value of other assets that are created when regulatory agencies permits public utilities to defer costs to the balance sheet. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
Name: | us-gaap_IncreaseDecreaseInOtherRegulatoryAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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://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
Name: | us-gaap_NetRegulatoryAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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://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
Name: | us-gaap_RegulatoryAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=awr_WaterRevenueAdjustmentMechanismMember
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: |

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

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=us-gaap_DeferredIncomeTaxChargesMember
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_RegulatoryLiabilityAxis=us-gaap_RevenueSubjectToRefundMember
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_COVID19MemorandumAccountCEMAMember
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: | dei_LegalEntityAxis=awr_BearValleyElectricServiceIncMember
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: |