Aggregate dividends declared during the period for each share of common stock outstanding.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.17)

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Significant Accounting Policies and Responsibility for Financial Statements - Narrative (Details) - USD ($)	1 Months Ended			3 Months Ended		6 Months Ended
	Jul. 31, 2015	Jun. 30, 2015	Jul. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Common Stock, Dividends, Per Share, Declared			$ 0.185	$ 0.200	$ 0.185	$ 0.400	$ 0.37
Dividends, Common Stock, Cash						$ 15,931,000
Adjustments for New Accounting Pronouncement [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Unamortized Debt Issuance Expense		$ 11,800,000		$ 11,800,000		11,800,000
Public Service Company of New Mexico [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Dividends, Common Stock, Cash		20,000,000					$ 0
Public Service Company of New Mexico [Member] \| Adjustments for New Accounting Pronouncement [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Unamortized Debt Issuance Expense		7,500,000		7,500,000		7,500,000
Texas-New Mexico Power Company [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Dividends, Common Stock, Cash		7,700,000					$ 6,800,000
Texas-New Mexico Power Company [Member] \| Adjustments for New Accounting Pronouncement [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Unamortized Debt Issuance Expense		$ 4,200,000		$ 4,200,000		$ 4,200,000
Subsequent Event [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Common Stock, Dividends, Per Share, Declared	$ 0.200