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Condensed Consolidated Statements of Changes in Common Stockholder's Equity - TNMP - USD ($)
$ in Thousands
Total
Texas-New Mexico Power Company
Texas-New Mexico Power Company
Common Stock
Texas-New Mexico Power Company
Paid-in Capital
Texas-New Mexico Power Company
Retained Earnings
Beginning balance TNMP at Dec. 31, 2022   $ 1,101,824 $ 64 $ 805,166 $ 296,594
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net earnings   74,169     74,169
Ending balance TNMP at Sep. 30, 2023   1,175,993 64 805,166 370,763
Beginning balance TNMP at Jun. 30, 2023   1,136,489 64 805,166 331,259
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net earnings   39,504     39,504
Ending balance TNMP at Sep. 30, 2023   1,175,993 64 805,166 370,763
Beginning balance TNMP at Dec. 31, 2023 $ 2,349,093 1,237,661 64 846,066 391,531
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net earnings   80,203     80,203
Ending balance TNMP at Sep. 30, 2024 2,459,979 1,317,864 64 846,066 471,734
Beginning balance TNMP at Jun. 30, 2024   1,282,169 64 846,066 436,039
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net earnings   35,695     35,695
Ending balance TNMP at Sep. 30, 2024 $ 2,459,979 $ 1,317,864 $ 64 $ 846,066 $ 471,734