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Regulatory Assets and Liabilities (Tables) | 9 Months Ended
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Sep. 30, 2016
Regulatory Assets and Liabilities Disclosure [Abstract] |
Schedule of Regulatory Assets | Regulatory assets and liabilities are comprised of the following as of September 30, 2016 and December 31, 2015:
Description |  | September 30, 2016 |  | December 31, 2015
Regulatory assets: |  |  |  |
Income tax temporary differences, net |  | $ | 8,184 |  |  | 8,184 |
Postretirement pensions and other medical benefits |  | 109,168 |  |  | 109,168 |
Balancing and memorandum accounts, net |  | 35,967 |  |  | 45,206 |
Other, net |  | 6,005 |  |  | 6,005 |
Total regulatory assets, net in Consolidated Balance Sheets |  | $ | 159,324 |  |  | 168,563 |
Less: current regulatory asset, net |  | 25,661 |  |  | 16,542 |
Total regulatory assets, net, less current portion |  | $ | 133,663 |  |  | 152,021 |

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- Definition Tabular disclosure of assets that are created when regulatory agencies permit public utilities to defer certain costs included in rate-setting to the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44264-110382 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 715 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501251&loc=d3e52485-110419 Reference 3: 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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