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Taxes on Income (Tables) | 12 Months Ended
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Dec. 31, 2014
Income Tax Disclosure [Abstract] |
Schedule of significant components of the deferred tax assets and liabilities from continuing operations | The significant components of the deferred tax assets and liabilities as reflected in the balance sheets at December 31, 2014 and 2013 are:
|  | AWR |  | GSWC
|  | December 31, |  | December 31,
(dollars in thousands) |  | 2014 |  | 2013 |  | 2014 |  | 2013
Deferred tax assets: |  |  |  |  |  |  |  |  |  |  |  |
Regulatory-liability-related: ITC |  | $ | 1,001 |  |  | $ | 1,049 |  |  | $ | 1,001 |  |  | $ | 1,049 |
Regulatory-liability-related: California Corp Franchise Tax |  | 4,328 |  |  | 4,337 |  |  | 4,328 |  |  | 4,337 |
Other non-property-related |  | 2,395 |  |  | 4,125 |  |  | 2,136 |  |  | 3,292 |
Contributions and advances |  | 8,335 |  |  | 8,655 |  |  | 8,335 |  |  | 8,655 |
|  | $ | 16,059 |  |  | $ | 18,166 |  |  | $ | 15,800 |  |  | $ | 17,333 |
Deferred tax liabilities: |  |  |  |  |  |  |  |  |  |  |  |
Fixed assets |  | $ | (163,232 | ) |  | $ | (131,534 | ) |  | $ | (164,724 | ) |  | $ | (131,548 | )
Regulatory-asset-related: depreciation and other |  | (22,941 | ) |  | (21,575 | ) |  | (22,941 | ) |  | (21,575 | )
California Corp Franchise Tax |  | (4,069 | ) |  | (2,120 | ) |  | (4,831 | ) |  | (1,749 | )
Other property-related |  | (59 | ) |  | (155 | ) |  | (59 | ) |  | (155 | )
Balancing and memorandum accounts |  | (4,071 | ) |  | (6,663 | ) |  | (4,071 | ) |  | (6,663 | )
Deferred charges |  | (5,461 | ) |  | (6,064 | ) |  | (5,461 | ) |  | (6,064 | )
|  | (199,833 | ) |  | (168,111 | ) |  | (202,087 | ) |  | (167,754 | )
Accumulated deferred income taxes - net |  | $ | (183,774 | ) |  | $ | (149,945 | ) |  | $ | (186,287 | ) |  | $ | (150,421 | )
Schedule of current and deferred components of income tax expense from continuing operations | The current and deferred components of income tax expense are as follows:
|  | AWR
|  | Year Ended December 31,
(dollars in thousands) |  | 2014 |  | 2013 |  | 2012
Current |  |  |  |  |  |  |  |  |
Federal |  | $ | 5,595 |  |  | $ | 13,741 |  |  | $ | 15,585 |
State |  | 137 |  |  | 5,930 |  |  | 5,273 |
Total current tax expense |  | $ | 5,732 |  |  | $ | 19,671 |  |  | $ | 20,858 |
Deferred |  |  |  |  |  |  |  |  |
Federal |  | $ | 24,815 |  |  | $ | 14,769 |  |  | $ | 13,088 |
State |  | 7,501 |  |  | 1,343 |  |  | 1,999 |
Total deferred tax expense |  | 32,316 |  |  | 16,112 |  |  | 15,087 |
Total income tax expense |  | $ | 38,048 |  |  | $ | 35,783 |  |  | $ | 35,945 |
|  | GSWC
|  | Year Ended December 31,
(dollars in thousands) |  | 2014 |  | 2013 |  | 2012
Current |  |  |  |  |  |  |  |  |
Federal |  | $ | 408 |  |  | $ | 10,768 |  |  | $ | 7,957 |
State |  | (2,754 | ) |  | 6,315 |  |  | 3,830 |
Total current tax expense |  | $ | (2,346 | ) |  | $ | 17,083 |  |  | $ | 11,787 |
Deferred |  |  |  |  |  |  |  |  |
Federal |  | $ | 24,373 |  |  | $ | 14,691 |  |  | $ | 12,670 |
State |  | 9,979 |  |  | 1,360 |  |  | 2,043 |
Total deferred tax expense |  | 34,352 |  |  | 16,051 |  |  | 14,713 |
Total income tax expense |  | $ | 32,006 |  |  | $ | 33,134 |  |  | $ | 26,500 |
Schedule of reconciliations of the effective tax rates to the federal statutory rate | The reconciliations of the effective tax rates to the federal statutory rate are as follows:
|  | AWR
|  | Year Ended December 31,
(dollars in thousands, except percent) |  | 2014 |  | 2013 |  | 2012
Federal taxes on pretax income at statutory rate |  | $ | 34,687 |  |  | $ | 34,464 |  |  | $ | 31,533 |
Increase (decrease) in taxes resulting from: |  |  |  |  |  |  |
State income tax, net of federal benefit |  | 4,781 |  |  | 5,111 |  |  | 4,957 |
Flow-through on fixed assets |  | 651 |  |  | 646 |  |  | 636 |
Flow-through on pension costs |  | (507 | ) |  | 612 |  |  | 10 |
Flow-through on removal costs |  | (1,571 | ) |  | (2,141 | ) |  | (943 | )
Domestic production activities deduction |  | (643 | ) |  | (2,944 | ) |  | (553 | )
Investment tax credit |  | (91 | ) |  | (91 | ) |  | (91 | )
Other – net |  | 741 |  |  | 126 |  |  | 396 |
Total income tax expense from operations |  | $ | 38,048 |  |  | $ | 35,783 |  |  | $ | 35,945 |
Pretax income from operations |  | $ | 99,106 |  |  | $ | 98,469 |  |  | $ | 90,093 |
Effective income tax rate |  | 38.4 | % |  | 36.3 | % |  | 39.9 | %
|  | GSWC
|  | Year Ended December 31,
(dollars in thousands, except percent) |  | 2014 |  | 2013 |  | 2012
Federal taxes on pretax income at statutory rate |  | $ | 27,952 |  |  | $ | 28,622 |  |  | $ | 23,002 |
Increase (decrease) in taxes resulting from: |  |  |  |  |  |  |
State income tax, net of federal benefit |  | 4,693 |  |  | 5,372 |  |  | 4,048 |
Flow-through on fixed assets |  | 651 |  |  | 646 |  |  | 636 |
Flow-through on pension costs |  | (507 | ) |  | 612 |  |  | 10 |
Flow-through on removal costs |  | (1,571 | ) |  | (2,141 | ) |  | (943 | )
Domestic production activities deduction |  | (55 | ) |  | (1,316 | ) |  | (553 | )
Investment tax credit |  | (91 | ) |  | (91 | ) |  | (91 | )
Other – net |  | 934 |  |  | 1,430 |  |  | 391 |
Total income tax expense from operations |  | $ | 32,006 |  |  | $ | 33,134 |  |  | $ | 26,500 |
Pretax income from operations |  | $ | 79,863 |  |  | $ | 81,776 |  |  | $ | 65,720 |
Effective income tax rate |  | 40.1 | % |  | 40.5 | % |  | 40.3 | %

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
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