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Related Party Transactions (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
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 | $ 26,150 | $ 24,521 | $ 52,375 | $ 46,644
Services billings: | PNMR to TNMP |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 10,135 | 9,703 | 20,500 | 18,430
Services billings: | PNM to TNMP |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 94 | 113 | 212 | 189
Services billings: | TNMP to PNMR |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 12 | 35 | 24 | 70
Services billings: | PNMR to NMRD |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 55 | 49 | 110 | 125
Renewable energy purchases: | PNM from NMRD |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 3,504 | 2,404 | 6,089 | 3,923
Interconnection billings: | PNM from NMRD |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 0 | 130 | 0 | 350
Interconnection billings: | PNM to PNMR |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 0 | 0 | 0 | 0
Interconnection billings: | NMRD to PNM |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 0 | 0 | 1,276 | 0
Interest billings: | PNMR to PNM |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 0 | 6 | 0 | 6
Interest billings: | PNMR to TNMP |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 0 | 1 | 0 | 2
Interest billings: | PNM to PNMR |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of related party transaction | 36 | 77 | 72 | 158
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://www.xbrl.org/2003/role/disclosureRef -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 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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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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