Financing Schedule of Long-term Debt Maturities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Long-term Debt, by Maturity [Abstract]
2014	$ 75,000
2015	158,066
2016	0
2017	57,000
2018	450,025
Therafter	985,045
Total	1,725,136
PNMR [Member]
Long-term Debt, by Maturity [Abstract]
2014	0
2015	118,766
2016	0
2017	0
2018	0
Therafter	0
Total	118,766
Public Service Company of New Mexico [Member]
Long-term Debt, by Maturity [Abstract]
2014	75,000
2015	39,300
2016	0
2017	57,000
2018	450,025
Therafter	669,545
Total	1,290,870
Texas-New Mexico Power Company [Member]
Long-term Debt, by Maturity [Abstract]
2014	0
2015	0
2016	0
2017	0
2018	0
Therafter	315,500
Total	$ 315,500