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Related Party Transactions (Tables) | 12 Months Ended
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Dec. 31, 2015
Related Party Transactions [Abstract] |
Schedule of Related Party Transactions | The table below summarizes the nature and amount of related party transactions of PNMR, PNM and TNMP:
| Year Ended December 31,
| 2015 |  | 2014 |  | 2013
|  |  | (In thousands) |  |
Services billings: |  |  |  |  |
PNMR to PNM | $ | 90,827 |  |  | $ | 86,871 |  |  | $ | 92,597 |
PNMR to TNMP | 28,109 |  |  | 28,349 |  |  | 28,937 |
PNM to TNMP | 554 |  |  | 524 |  |  | 562 |
TNMP to PNMR | 41 |  |  | 31 |  |  | 7 |
Income tax sharing payments: |  |  |  |  |
PNMR to TNMP | — |  |  | — |  |  | — |
PNMR to PNM | 1,450 |  |  | — |  |  | 77,433 |
TNMP to PNMR | — |  |  | — |  |  | 3,643 |
Interest payments: |  |  |  |  |
PNM to PNMR | 54 |  |  | 65 |  |  | 4 |
TNMP to PNMR | 276 |  |  | 309 |  |  | 481 |

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- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
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