XML 17 R25.htm IDEA: XBRL DOCUMENT v2.4.1.9
Regulatory Matters: CPUC Rehearing Matter and Procurement Audits (Details)
 1 Months Ended 12 Months Ended
Dec. 31, 2011
Audit
Dec. 31, 2014
Regulatory matters:    
Separate independent audits 3awr_NumberOfSeparateIndependentAuditsOfProcurementPracticesAgreedUnderSettlementAgreement  
Number of Years of Separate Independent Audits of Procurement Practices Agreed under Settlement Agreement 10 years  
GOLDEN STATE WATER COMPANY    
Regulatory matters:    
Period of Separate Independent Audits of Procurement Practices Covered by Report   20 years