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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, 2021   $ 941,557 $ 64 $ 737,166 $ 204,327
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net earnings   15,060     15,060
Ending balance TNMP at Mar. 31, 2022   956,617 64 737,166 219,387
Beginning balance TNMP at Dec. 31, 2022 $ 2,191,932 1,101,824 64 805,166 296,594
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net earnings   10,033     10,033
Ending balance TNMP at Mar. 31, 2023 $ 2,212,191 $ 1,111,857 $ 64 $ 805,166 $ 306,627