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Utility Plant and Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2014
Utility Plant and Intangible Assets |
Schedule of Registrant's utility plant utilized in continuing operations by major asset class | The following table shows Registrant’s utility plant by major asset class:
|  | GSWC December 31, |  | AWR December 31,
(dollars in thousands) |  | 2014 |  | 2013 |  | 2014 |  | 2013
Water |  |  |  |  |  |  |  |  |  |  |  |
Land |  | $ | 15,423 |  |  | $ | 15,423 |  |  | $ | 15,423 |  |  | $ | 15,423 |
Intangible assets |  | 34,063 |  |  | 34,001 |  |  | 34,081 |  |  | 34,019 |
Source of water supply |  | 80,614 |  |  | 75,651 |  |  | 80,614 |  |  | 75,651 |
Pumping |  | 155,802 |  |  | 147,390 |  |  | 155,802 |  |  | 147,390 |
Water treatment |  | 71,519 |  |  | 70,947 |  |  | 71,519 |  |  | 70,947 |
Transmission and distribution |  | 894,789 |  |  | 856,823 |  |  | 894,789 |  |  | 856,823 |
General |  | 110,864 |  |  | 107,274 |  |  | 121,552 |  |  | 116,346 |
|  | 1,363,074 |  |  | 1,307,509 |  |  | 1,373,780 |  |  | 1,316,599 |
Electric |  |  |  |  |  |  |  |  |  |  |  |
Transmission and distribution |  | 60,035 |  |  | 58,400 |  |  | 60,035 |  |  | 58,400 |
Generation |  | 12,547 |  |  | 12,547 |  |  | 12,547 |  |  | 12,547 |
General (1) |  | 9,054 |  |  | 8,413 |  |  | 9,054 |  |  | 8,413 |
|  | 81,636 |  |  | 79,360 |  |  | 81,636 |  |  | 79,360 |
Less — accumulated depreciation |  | (494,000 | ) |  | (466,329 | ) |  | (500,239 | ) |  | (471,665 | )
Construction work in progress |  | 48,170 |  |  | 56,754 |  |  | 48,343 |  |  | 57,183 |
Net utility plant |  | $ | 998,880 |  |  | $ | 977,294 |  |  | $ | 1,003,520 |  |  | $ | 981,477 |
(1) Includes intangible assets of $1.2 million for the years ended December 31, 2014 and 2013 for studies performed in association with the electricity segment of the Registrant’s operations.
Schedule of components of intangible assets | As of December 31, 2014 and 2013, intangible assets consist of the following:
|  | Weighted Average Amortization |  | GSWC December 31, |  | AWR December 31,
(dollars in thousands) |  | Period |  | 2014 |  | 2013 |  | 2014 |  | 2013
Intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conservation |  | 26 years |  | $ | 9,496 |  |  | $ | 9,496 |  |  | $ | 9,496 |  |  | $ | 9,496 |
Water and service rights (2) |  | 30 years |  | 8,124 |  |  | 8,124 |  |  | 8,695 |  |  | 8,695 |
Water planning studies |  | 13 years |  | 17,277 |  |  | 17,214 |  |  | 17,277 |  |  | 17,214 |
Total intangible assets |  |  |  | 34,897 |  |  | 34,834 |  |  | 35,468 |  |  | 35,405 |
Less — accumulated amortization |  |  |  | (24,373 | ) |  | (22,459 | ) |  | (24,456 | ) |  | (22,530 | )
Intangible assets, net of amortization |  |  |  | $ | 10,524 |  |  | $ | 12,375 |  |  | $ | 11,012 |  |  | $ | 12,875 |
Intangible assets not subject to amortization (3) |  |  |  | $ | 409 |  |  | $ | 409 |  |  | $ | 427 |  |  | $ | 427 |
Schedule of estimated future consolidated amortization expenses related to intangible assets | Estimated future consolidated amortization expenses related to intangible assets for the succeeding five years are (in thousands):
|  | Amortization Expense
2015 |  | $ | 2,441 |
2016 |  | 1,605 |
2017 |  | 1,491 |
2018 |  | 1,491 |
2019 |  | 1,320 |
Total |  | $ | 8,348 |
Schedule of reconciliation of the beginning and ending aggregate carrying amount of the asset retirement obligations | The following is a reconciliation of the beginning and ending aggregate carrying amount of asset retirement obligations, which are included in “Other Credits” on the balance sheets as of December 31, 2014 and 2013:
(dollars in thousands) |  | GSWC
Obligation at December 31, 2012 |  | $ | 3,018 |
Additional liabilities incurred |  | 11 |
Liabilities settled |  | (126 | )
Accretion |  | 192 |
Obligation at December 31, 2013 |  | $ | 3,095 |
Additional liabilities incurred |  | 6 |
Liabilities settled |  | (66 | )
Accretion |  | 199 |
Obligation at December 31, 2014 |  | $ | 3,234 |

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- Definition Tabular disclosure of the characteristics, including initial carrying value, residual amount, weighted average useful life, of indefinite and finite lived intangible assets by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by nature or by their use in the operations of the entity. + References No definition available. + Details
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