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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, 2023   $ 1,237,661 $ 64 $ 846,066 $ 391,531
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net earnings   14,583     14,583
Ending balance TNMP at Mar. 31, 2024   1,252,244 64 846,066 406,114
Beginning balance TNMP at Dec. 31, 2024 $ 2,536,385 1,365,189 64 870,066 495,059
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net earnings   22,283     22,283
Ending balance TNMP at Mar. 31, 2025 $ 2,504,335 $ 1,387,472 $ 64 $ 870,066 $ 517,342