XML 69 R54.htm IDEA: XBRL DOCUMENT v3.23.3
Significant Accounting Policies and Responsibility for Financial Statements (Details) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Aug. 01, 2023
Sep. 30, 2023
Sep. 30, 2022
Aug. 31, 2022
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Subsequent Event [Line Items]                
Payment defaults under agreements   $ 0     $ 0   $ 0  
Dividends declared per common share (dollars per share) $ 0.3675 $ 0.3675 $ 0.3475 $ 0.3475 $ 0.3675 $ 0.3475 $ 1.1025 $ 1.0425
Dividends declared on common stock         $ 63,088,000 $ 59,655,000 $ 94,634,000 $ 119,311,000
PNMR                
Subsequent Event [Line Items]                
Equity contribution from parent         0 68,000,000 0 68,000,000
Public Service Company of New Mexico                
Subsequent Event [Line Items]                
Dividends declared on common stock         0 85,000,000 0 85,000,000
Texas-New Mexico Power Company                
Subsequent Event [Line Items]                
Equity contribution from parent             0 68,000,000
Dividends declared on common stock         $ 0 $ 0 $ 0 $ 0