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Commitments and Contingencies - WEG v. OSM NEPA Lawsuit (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 option | Feb. 28, 2013 state mine lawsuit
Loss Contingencies [Line Items] |  |
Number of options for meeting BTA standards | option | 7 |
Public Service Company of New Mexico | WEG v OSM Lawsuit |  |
Loss Contingencies [Line Items] |  |
Number of mines affected | mine |  | 7
Number of states | state |  | 4
Number of claims filed for relief (in lawsuits) |  | 15
Public Service Company of New Mexico | WEG v OSM Lawsuit | San Juan Generating Station |  |
Loss Contingencies [Line Items] |  |
Number of claims filed for relief (in lawsuits) |  | 2

X
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- Definition Number of mines impacted + References No definition available. + Details
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- Details
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- Details
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- Details
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