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Regulatory Matters: General Rate Case Memorandum Accounts and Other Regulatory Assets (Details) (USD $) | 3 Months Ended | 9 Months Ended |  |  |  |  |  |  | 3 Months Ended
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Sep. 30, 2014 customer | Sep. 30, 2014 | Sep. 30, 2014 GSWC | Dec. 31, 2013 GSWC | Sep. 30, 2014 GSWC General rate case memorandum accounts | Dec. 31, 2013 GSWC General rate case memorandum accounts | Sep. 30, 2014 GSWC Other regulatory assets, net | Dec. 31, 2013 GSWC Other regulatory assets, net | Sep. 30, 2013 Minimum GSWC General rate case memorandum accounts | Sep. 30, 2013 Maximum GSWC General rate case memorandum accounts | Sep. 30, 2013 Majority GSWC General rate case memorandum accounts
Regulatory matters: |  |  |  |  |  |  |  |  |  |  |
Regulatory assets |  |  | $ 103,616,000 | $ 122,681,000 | $ 6,171,000 | $ 15,645,000 | $ 18,216,000 | $ 25,086,000 |  |  |
Net regulatory assets increase (decrease) due to settlement of rate case |  | $ 2,100,000 |  |  |  |  |  |  |  |  |
Regulatory asset recovery periods |  |  |  |  |  |  |  |  | 12 months | 24 months | 12 months
Number of Customers in new service territory | 17,000 |  |  |  |  |  |  |  |  |  |

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- Definition Represents the amount of increase or decrease to net regulatory assets due to settlement of rate case during the period. + References No definition available. + Details
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- Definition No authoritative reference available. + References No definition available. + Details
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- Definition Represents the recovery periods of the surcharge billed to the customers. + References No definition available. + Details
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- Details
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- 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
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