Cost Method Investment, Ownership Percentage

No definition available.

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- Definition

Cost Method Investment, Ownership Percentage, Sold

+ References

No definition available.

+ Details

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- Definition

Equity Method Investment Other Than Temporary Impairment, Net of Tax

+ References

No definition available.

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- Definition

This item represents the aggregate carrying amount of all cost-method investments as reported on or included in the balance sheet. The original cost of the investments may differ from the aggregate carrying amount disclosed due to various adjustments such as: (i) dividends received in excess of earnings after the date of investment that are considered a return of investment and therefore recorded as reductions to cost of the investment, or (ii) a series of operating losses of an investee or other factors which may indicate that a decrease in value of the investment has occurred which is other than temporary and accordingly such decrease in value has been recognized.

+ References

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- Definition

This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

+ References

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-Name Accounting Principles Board Opinion (APB)

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

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- Definition

The amount of gross profit (loss) reported by an equity method investment of the entity.

+ References

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- Definition

The amount of net income (loss) reported by an equity method investment of the entity.

+ References

+ Details

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- Definition

The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity.

+ References

No definition available.

+ Details

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- Definition

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

+ References

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Optim Energy (Details) (USD $)	12 Months Ended			1 Months Ended	9 Months Ended	12 Months Ended
Optim Energy (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2010 Optim Energy [Member]	Sep. 30, 2012 Optim Energy [Member]	Dec. 31, 2012 Optim Energy [Member]	Dec. 31, 2011 Optim Energy [Member]	Sep. 23, 2011 Optim Energy [Member]	Sep. 22, 2011 Optim Energy [Member]	Jan. 04, 2012 Optim Energy [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment,ownership percentage									50.00%
PNMR equity investment in Optim Energy							$ 0
Impairment of equity investment in Optim Energy	0	0	188,176,000	188,200,000
Equity method investment other than temporary impairment, net of tax				113,700,000
Cost method investment, ownership percentage								1.00%
Ownership percentage, sold										1.00%
Cost Method Investments										0
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Operating revenues					256,786,000		374,358,000
Gross margin					84,689,000		109,980,000
Net earnings (loss)					(21,434,000)		(25,090,000)
PNMR equity in net earnings (loss) of Optim Energy	$ 0	$ 0	$ (15,223,000)			$ 0	$ (15,200,000)