Debt Instrument, Cash Offered for Debt Exchanged

No definition available.

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Period Type:	instant

- Definition

Debt Instrument, Cash Paid for Debt Exchanged

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

Debt Instrument, Refunded Amount Redeemed at Par and Retired

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Debt Instrument, Shelf Registration Statement for Unsecured Debt

+ References

No definition available.

+ Details

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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-Publisher FASB

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-Topic 210

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-Subparagraph (SX 210.5-02.22(a)(1))

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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-Subparagraph (SX 210.5-02.22(a)(1))

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- Definition

The amount of debt premium that was originally recognized at the issuance of the instrument that has yet to be amortized.

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-Publisher FASB

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- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

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-Subparagraph (SX 210.5-02.22(b))

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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- Definition

Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities.

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

The amount for notes payable (written promise to pay), due to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

The cash inflow from bank borrowing during the year.

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

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- Definition

The net cash inflow or outflow in aggregate debt due to repayments and proceeds from additional borrowings.

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-Publisher FASB

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-Glossary Financing Activities

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- Definition

The cash inflow from a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.

+ References

+ Details

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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

No definition available.

+ Details

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- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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- Definition

The cash outflow to repay long-term debt that is not secured by collateral. Excludes repayments of tax exempt unsecured debt.

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- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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-Name Regulation S-X (SX)

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-Number 210

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Financing (Details) (USD $)	12 Months Ended			0 Months Ended
Financing (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Apr. 03, 2013	Sep. 30, 2011	Dec. 27, 2012	Apr. 22, 2013	Mar. 05, 2014	Dec. 22, 2014	Mar. 06, 2013	Dec. 14, 2012	Sep. 30, 2012	Dec. 09, 2013	Feb. 20, 2015
Debt Instrument [Line Items]
Repayments of Unsecured Debt		$ 26,900,000us-gaap_RepaymentsOfUnsecuredDebt
Loss on reacquired debt	0	3,253,000	0
Short-term debt	105,600,000us-gaap_ShortTermBorrowings	149,200,000us-gaap_ShortTermBorrowings
Proceeds from Short-term Debt			100,000,000us-gaap_ProceedsFromShortTermDebt
Long-term Debt	1,975,090,000us-gaap_LongTermDebt	1,745,420,000us-gaap_LongTermDebt
Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		9.25%
Public Service Company of New Mexico [Member]
Debt Instrument [Line Items]
Long-term Debt	1,490,657,000	1,290,618,000
Short-term debt - affiliate	0	32,500,000
Public Service Company of New Mexico [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Shelf Registration Statement for Unsecured Debt	500,000,000
Public Service Company of New Mexico [Member] \| PNM 2014 Term Loan Agreement [Member]
Debt Instrument [Line Items]
Long-term Debt								175,000,000
Debt Instrument, Interest Rate, Effective Percentage	1.11%
Public Service Company of New Mexico [Member] \| PNM 2014 Multi-Draw Term Loan Agreement [Member]
Debt Instrument [Line Items]
Long-term Debt									125,000,000
Debt Instrument, Interest Rate, Effective Percentage	0.75%
Proceeds from (Repayments of) Debt	100,000,000
Debt Instrument, Unused Borrowing Capacity, Amount	25,000,000
Texas-New Mexico Power Company [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount										1,000
Long-term Debt	365,667,000	336,036,000
Debt Instrument, Cash Offered for Debt Exchanged										140
Repayments of Debt	30,000,000
Short-term debt - affiliate	22,700,000	29,400,000
Texas-New Mexico Power Company [Member] \| First Mortgage Bonds [Member]
Debt Instrument [Line Items]
Debt Instrument, Cash Paid for Debt Exchanged				13,000,000
Texas-New Mexico Power Company [Member] \| 2011 Term Loan Agreement [Member]
Debt Instrument [Line Items]
Proceeds from Bank Debt					50,000,000
Repayments of Debt	50,000,000
Senior unsecured notes, 9.25% due 2015 [Member] \| Senior unsecured notes, 9.25% due 2015 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		23,800,000
PNMR Term Loan Agreement [Member]
Debt Instrument [Line Items]
Short-term debt	100,000,000	100,000,000
PNMR Term Loan Agreement [Member] \| Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Short-term debt											100,000,000
Proceeds from Short-term Debt						100,000,000
Repayments of Lines of Credit						100,000,000
2.54% Maturing of September First, 2042 with a Mandatory Tender on June First, 2017 [Member] \| Public Service Company of New Mexico [Member] \| Pollution Control Revenue Bonds [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount												20,000,000
Debt Instrument, Interest Rate, Stated Percentage												2.54%
5.15% Percent Maturing in 2037 [Member] \| Public Service Company of New Mexico [Member] \| Pollution Control Revenue Bonds [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage												5.15%
Debt Instrument, Refunded Amount Redeemed at Par and Retired												20,000,000
PNM Term Loan Agreement [Member] \| Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Short-term debt							75,000,000
Repayments of Lines of Credit							75,000,000
First Mortgage Bonds Due 2014, Series 2009A, at 9 point 50 percent [Member] \| Texas-New Mexico Power Company [Member] \| First Mortgage Bonds [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount										265,500,000
Debt Instrument, Interest Rate, Stated Percentage	9.50%	9.50%		9.50%						9.50%
First Mortgage Bonds 6 Point 95 Percent, due 2043, Series 2013A [Member] \| Texas-New Mexico Power Company [Member] \| First Mortgage Bonds [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				93,200,000
Debt Instrument, Interest Rate, Stated Percentage	6.95%	6.95%		6.95%						6.95%
Debt Instrument, Unamortized Premium				23,200,000
First Mortgage Bonds Due 2024, Series 2014A, at 4 point 03 percent [Member] [Member] \| Texas-New Mexico Power Company [Member] \| Pollution Control Revenue Bonds [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount													80,000,000
Debt Instrument, Interest Rate, Stated Percentage													4.03%
First Mortgage Bonds Due 2024, Series 2014A, at 4 point 03 percent [Member] [Member] \| Texas-New Mexico Power Company [Member] \| First Mortgage Bonds [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.03%
Borrowings from PNMR [Member] \| Public Service Company of New Mexico [Member]
Debt Instrument [Line Items]
Short-term debt - affiliate														0
Borrowings from PNMR [Member] \| Texas-New Mexico Power Company [Member]
Debt Instrument [Line Items]
Short-term debt - affiliate														17,300,000
Subsequent Event [Member] \| Public Service Company of New Mexico [Member] \| PNM 2014 Multi-Draw Term Loan Agreement [Member]
Debt Instrument [Line Items]
Debt Instrument, Unused Borrowing Capacity, Amount														25,000,000
Maximum [Member]
Debt Instrument [Line Items]
Short-term debt - affiliate	100,000,000
Fair Value, Inputs, Level 2 [Member] \| Cash Flow Hedging [Member] \| Texas-New Mexico Power Company [Member] \| 2011 Term Loan Agreement [Member]
Debt Instrument [Line Items]
Interest Rate Derivative Liabilities, at Fair Value		$ 200,000