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Regulatory Matters (Details 5) - GSWC - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014
Regulatory matters: |  |
Total | $ 132,696 | $ 125,704
Pension Costs and Other Postretirement Benefit Costs [Member] |  |
Regulatory matters: |  |
Regulatory asset | 19,800 |
Total | 21,996 | 43,426
Pension Costs and Other Postretirement Benefit Costs [Member] | Two-way pension balancing account |  |
Regulatory matters: |  |
Regulatory asset | $ 2,200 |
Water Revenue Adjustment Mechanism Net of Modified Cost Balancing Account [Member] |  |
Regulatory matters: |  |
Commercial paper, term | 90 days |
Total | $ 45,171 | 9,369
Base revenue requirement adjustment mechanism |  |
Regulatory matters: |  |
Total | $ 3,714 | 7,761
Low income rate assistance balancing accounts |  |
Regulatory matters: |  |
Commercial paper, term | 90 days |
Discount percentage for qualified low-income water customers | 15.00% |
Discount percentage for qualified low-income electric customers | 20.00% |
Total | $ 8,699 | $ 9,109

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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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