XML 82 R67.htm IDEA: XBRL DOCUMENT v3.23.3
Fair Value Measures and Disclosures - Gross Realized (Losses) (Details) - PNM - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Debt Securities, Available-for-sale [Line Items]        
Proceeds from sales $ 137,797 $ 92,371 $ 412,574 $ 323,251
Gross realized gains 4,022 2,366 14,464 20,089
Gross realized (losses) $ (6,876) $ (6,908) $ (19,088) $ (23,109)