XML 58 R72.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Commitments (Details 3) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 MW
Water Purchase Commitments [Member] | GSWC |
Purchase commitments |
Total commitment under agreement | 5,264 us-gaap_PurchaseObligation / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = awr_WaterPurchaseCommitmentsMember
Bear Valley Electric | GSWC |
Purchase commitments |
Average load at customer service area (in MWs) | 11 awr_AverageLoadAtCustomerServiceAreaNumberOfMegawatts / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = awr_ElectricPowerPurchaseCommitmentsMember
Average winter load (in MWs) | 20 awr_AverageWinterLoadNumberOfMegawatts / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = awr_ElectricPowerPurchaseCommitmentsMember
Winter peak load (in MWs) | 45 awr_WinterPeakLoadNumberOfMegawatts / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = awr_ElectricPowerPurchaseCommitmentsMember
Maximum capacity fo natural gas-fuled generation facility (in megawatts) | 8.4 awr_NaturalGasFueledGenerationFacilityMaximumCapacity / dei_LegalEntityAxis = awr_GoldenStateWaterCompanyMember / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = awr_ElectricPowerPurchaseCommitmentsMember
Bear Valley Electric | Electric Service Utility Operations [Member] |
Purchase commitments |
Total commitment under agreement | 31,100 us-gaap_PurchaseObligation / dei_LegalEntityAxis = awr_ElectricServiceUtilityOperationsMember / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = awr_ElectricPowerPurchaseCommitmentsMember

X
- Definition Represents the average load at customer service area. + References No definition available. + Details
Name: | awr_AverageLoadAtCustomerServiceAreaNumberOfMegawatts
Namespace Prefix: | awr_
Data Type: | num:powerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the average winter load. + References No definition available. + Details
Name: | awr_AverageWinterLoadNumberOfMegawatts
Namespace Prefix: | awr_
Data Type: | num:powerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the maximum capacity provided by a natural gas-fueled generation facility. + References No definition available. + Details
Name: | awr_NaturalGasFueledGenerationFacilityMaximumCapacity
Namespace Prefix: | awr_
Data Type: | num:powerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the winter peak load when the snowmaking machines at the ski resorts are operating. + References No definition available. + Details
Name: | awr_WinterPeakLoadNumberOfMegawatts
Namespace Prefix: | awr_
Data Type: | num:powerItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_PurchaseCommitmentExcludingLongtermCommitmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. + References No definition available. + Details
Name: | us-gaap_PurchaseObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis=awr_ElectricPowerPurchaseCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis=awr_WaterPurchaseCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |