Debt Instrument, Cash Offered for Debt Exchanged

No definition available.

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- Definition

Debt Instrument, Cash Paid for Debt Exchanged

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Shelf Registration Statement for Unsecured Debt

+ References

No definition available.

+ Details

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- Definition

Payments to fund long-tern loans to unaffiliated third party

+ References

No definition available.

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- Definition

Ratio of debt to capital, maximum

+ References

No definition available.

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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
-Section 55
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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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- Definition

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

+ References

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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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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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

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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

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.

+ References

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- Definition

The cash inflow from bank borrowing during the year.

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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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-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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- Definition

Amount of unrealized gain (loss) related to the increase or decrease in fair value of interest rate derivatives designated as cash flow hedging instruments, which was recorded in accumulated other comprehensive income to the extent that the cash flow hedge was determined to be effective.

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- Definition

Carrying value as of the balance sheet date of uncollateralized debt obligation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

+ References

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Financing - Activities, PNM and TNMP (Details) - USD ($)										12 Months Ended
	Feb. 01, 2016	Dec. 21, 2015	Aug. 11, 2015	May. 08, 2015	Jun. 27, 2014	Apr. 22, 2013	Apr. 03, 2013	Dec. 27, 2012	Sep. 30, 2011	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 17, 2015	Sep. 30, 2015	Jun. 01, 2015	Mar. 09, 2015	Dec. 22, 2014	Mar. 05, 2014	Dec. 09, 2013	Mar. 06, 2013	Dec. 14, 2012
Debt Instrument [Line Items]
Short-term debt										$ 250,600,000	$ 105,600,000
Amount borrowed under agreement										50,000,000	0	$ 0
Fixed interest rate														1.927%
Repayments of unsecured debt												26,900,000
Gain (loss) on reacquired debt										0	0	(3,253,000)
NM Capital [Member] \| San Juan Generating Station [Member] \| Coal Supply [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Payments to fund long-tern loans to unaffiliated third party	$ 125,000,000.0
Texas-New Mexico Power Company [Member]
Debt Instrument [Line Items]
Short-term debt										59,000,000	5,000,000
Aggregate principal amount																				$ 1,000
Repayments of debt					$ 30,000,000
Cash offered for debt exchanged																				140
Level 2 [Member] \| Cash Flow Hedging [Member]
Debt Instrument [Line Items]
Fair value gain										100,000
PNMR Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Short-term debt										41,600,000	600,000
Notes Payable to Banks [Member] \| PNMR Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Repayment of borrowings made under the Revolving Credit Facility						$ 75,000,000.0		$ 100,000,000.0
PNMR Term Loan Agreement [Member]
Debt Instrument [Line Items]
Short-term debt										$ 150,000,000	$ 100,000,000
PNMR Term Loan Agreement [Member] \| Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Short-term debt																					$ 100,000,000.0
Amount borrowed under agreement		$ 150,000,000.0						$ 100,000,000.0
PNM Term Loan Agreement [Member] \| Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Short-term debt						$ 75,000,000.0
Line of Credit [Member]
Debt Instrument [Line Items]
Ratio of debt to capital, maximum										65.00%
Line of Credit [Member] \| Texas-New Mexico Power Company [Member]
Debt Instrument [Line Items]
Ratio of debt to capital, maximum										65.00%
PNMR 2015 Term Loan Agreement [Member]
Debt Instrument [Line Items]
Long-term debt																$ 150,000,000.0
Variable interest rate										1.22%
Senior unsecured notes, 9.25% due 2015 [Member] \| Senior unsecured notes, 9.25% due 2015 [Member]
Debt Instrument [Line Items]
Aggregate principal amount												$ 23,800,000
Unsecured Debt [Member]
Debt Instrument [Line Items]
Stated percentage												9.25%
Unsecured Debt [Member] \| Public Service Company of New Mexico [Member]
Debt Instrument [Line Items]
Shelf registration statement of unsecured debt										$ 250,000,000
Unsecured Debt [Member] \| Senior unsecured notes, 9.25% due 2015 [Member]
Debt Instrument [Line Items]
Stated percentage											9.25%
Aggregate outstanding principal amount											$ 118,800,000
Unsecured Debt [Member] \| 3.85% due 2025 [Member] \| Public Service Company of New Mexico [Member]
Debt Instrument [Line Items]
Stated percentage			3.85%							3.85%	3.85%
Aggregate outstanding principal amount			$ 250,000,000.0							$ 250,000,000	$ 0
BTMU Term Loan Agreement [Member] \| NM Capital [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Long-term debt	$ 125,000,000.0
PNM 2014 Term Loan Agreement [Member] \| Public Service Company of New Mexico [Member]
Debt Instrument [Line Items]
Long-term debt																		$ 175,000,000.0
Repayments of debt			$ 175,000,000.0
PNM 2014 Multi-Draw Term Loan Agreement [Member] \| Public Service Company of New Mexico [Member]
Debt Instrument [Line Items]
Long-term debt										$ 125,000,000							$ 125,000,000.0
Variable interest rate										0.99%
Outstanding borrowings				$ 25,000,000							100,000,000.0
Unsecured notes, Pollution control revenue bonds [Member] \| Senior unsecured note, PCRB Due 2043, at 4 percent [Member] \| Public Service Company of New Mexico [Member]
Debt Instrument [Line Items]
Aggregate outstanding principal amount											$ 39,300,000
Unsecured notes, Pollution control revenue bonds [Member] \| Senior unsecured note, PCRB Due 2043, at 2 point 4 percent [Member] \| Public Service Company of New Mexico [Member]
Debt Instrument [Line Items]
Stated percentage															2.40%
Aggregate outstanding principal amount															$ 39,300,000
2011 Term Loan Agreement [Member] \| Texas-New Mexico Power Company [Member]
Debt Instrument [Line Items]
Repayments of debt					$ 50,000,000
Proceeds from bank debt									$ 50,000,000
First Mortgage Bonds [Member] \| Texas-New Mexico Power Company [Member]
Debt Instrument [Line Items]
Aggregate cash paid for debt exchanged							$ 13,000,000
First Mortgage Bonds [Member] \| First Mortgage Bonds Due 2014, Series 2009A, at 9.50% [Member] \| Texas-New Mexico Power Company [Member]
Debt Instrument [Line Items]
Aggregate principal amount							$ 93,200,000													$ 265,500,000
Stated percentage							9.50%			9.50%	9.50%									9.50%
Aggregate outstanding principal amount										$ 172,302,000	$ 172,302,000
First Mortgage Bonds [Member] \| First Mortgage Bonds 6.95%, due 2043, Series 2013A [Member] \| Texas-New Mexico Power Company [Member]
Debt Instrument [Line Items]
Aggregate principal amount							$ 93,200,000
Stated percentage							6.95%			6.95%	6.95%									6.95%
Aggregate outstanding principal amount										$ 93,198,000	$ 93,198,000
Unamortized premium							$ 23,200,000
First Mortgage Bonds [Member] \| First Mortgage Bonds Due 2024, Series 2014A, at 4.03% [Member] \| Texas-New Mexico Power Company [Member]
Debt Instrument [Line Items]
Stated percentage										4.03%	4.03%
Aggregate outstanding principal amount										$ 80,000,000	$ 80,000,000
First Mortgage Bonds [Member] \| First Mortgage Bonds 3 Point 53 Percent, due 2026, Series 2016A [Member] \| Texas-New Mexico Power Company [Member]
Debt Instrument [Line Items]
Aggregate principal amount													$ 60,000,000.0
Stated percentage													3.53%
Pollution Control Revenue Bonds [Member] \| First Mortgage Bonds Due 2024, Series 2014A, at 4.03% [Member] \| Texas-New Mexico Power Company [Member]
Debt Instrument [Line Items]
Aggregate principal amount																			$ 80,000,000.0
Stated percentage																			4.03%