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Related Party Transactions (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Related Party Transaction [Line Items] |  |  |  |
Ownership percentage | 50.00% |  | 50.00% |
Services billings: | PNMR to PNM |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | $ 22,972 | $ 23,451 | $ 69,122 | $ 71,044
Services billings: | PNMR to TNMP |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 8,074 | 7,828 | 24,497 | 23,771
Services billings: | PNM to TNMP |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 104 | 115 | 281 | 302
Services billings: | TNMP to PNMR |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 35 | 35 | 105 | 106
Services billings: | TNMP to PNM |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 0 | 8 | 0 | 154
Services billings: | PNMR to NMRD |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 32 | 0 | 162 | 0
Renewable energy purchases: | PNM from NMRD |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 969 | 0 | 2,343 | 0
Interconnection billings: | PNM from NMRD |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 47 | 0 | 2,099 | 0
Interconnection billings: | PNM to PNMR |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 0 | 0 | 68,200 | 0
Interest billings: | PNMR to PNM |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 844 | 3 | 1,653 | 14
Interest billings: | PNMR to TNMP |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 65 | 66 | 87 | 126
Interest billings: | PNM to PNMR |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 75 | 71 | 211 | 163
Income tax sharing payments: | PNMR to PNM |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 0 | 0 | 0 | 0
Income tax sharing payments: | TNMP to PNMR |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | $ 0 | $ 0 | $ 0 | $ 0

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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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- Definition Amount of transactions with related party during the financial reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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