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Condensed Consolidated Balance Sheets - PNM (Parenthetical) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Allowance for uncollectible accounts $ 4,549 $ 4,925
Accumulated depreciation, nuclear fuel $ 34,759 $ 43,985
Common stock, no par value (in dollars per share) $ 0 $ 0
Common stock, shares authorized (in shares) 120,000,000 120,000,000
Common stock, shares issued (in shares) 85,834,874 85,834,874
Common stock, shares outstanding (in shares) 85,834,874 85,834,874
PNM    
Allowance for uncollectible accounts $ 4,549 $ 4,925
Accumulated depreciation, nuclear fuel $ 34,759 $ 43,985
Cumulative preferred stock, stated value (in dollars per share) $ 100 $ 100
Cumulative preferred stock, shares authorized (in shares) 10,000,000 10,000,000
Cumulative preferred stock, shares issued (in shares) 115,293 115,293
Cumulative preferred stock, shares outstanding (in shares) 115,293 115,293
Common stock, no par value (in dollars per share) $ 0 $ 0
Common stock, shares authorized (in shares) 40,000,000 40,000,000
Common stock, shares issued (in shares) 39,117,799 39,117,799
Common stock, shares outstanding (in shares) 39,117,799 39,117,799