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Business Segments (Details 2) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Segment Reporting [Abstract] |  |  |
Total utility plant | $ 981,477 | $ 917,791 | $ 896,500
Other assets | 328,706 | 363,152 | 341,862
Total Assets | 1,310,183 | 1,280,943 | 1,238,362
GSWC |  |  |
Segment Reporting [Abstract] |  |  |
Total utility plant | 977,294 | 913,137 |
Total Assets | 1,233,381 | 1,214,052 |
Segment Reporting Information [Line Items] |  |  |
Depreciation on transportation equipment | 877 | 1,800 | 2,500
AWR Parent |  |  |
Segment Reporting [Abstract] |  |  |
Total utility plant | 0 | 0 | 0
Total Assets | 495,273 | 455,166 |
CCWC |  |  |
Segment Reporting Information [Line Items] |  |  |
Direct transaction costs, before tax |  |  | 449
Direct transaction costs, net of tax |  |  | 217
CCWC | AWR Parent |  |  |
Segment Reporting Information [Line Items] |  |  |
Direct transaction costs, before tax |  |  | 449
Direct transaction costs, net of tax |  |  | $ 217

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- Definition Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph a -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 8 -Article 7 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 12 -Paragraph 5 -Subparagraph b, c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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