Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2016

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

Information regarding AOCI is as follows:

	Accumulated Other Comprehensive Income (Loss)
	PNM									TNMP			PNMR
	Unrealized Gains on Available-for-Sale Securities			Pension Liability Adjustment			Total			Fair Value Adjustment for Cash Flow Hedges			Fair Value Adjustment for Cash Flow Hedges			Total
	(In thousands)
Balance at December 31, 2013	$	25,748		$	(83,625	)	$	(57,877	)	$	(263	)	$	—		$	(58,140	)
Amounts reclassified from AOCI (pre-tax)	(13,862		)	5,152			(8,710		)	558			—			(8,152		)
Income tax impact of amounts reclassified	5,461			(2,032		)	3,429			(195		)	—			3,234
Other OCI changes (pre-tax)	17,473			(15,282		)	2,191			(153		)	—			2,038
Income tax impact of other OCI changes	(6,812		)	6,024			(788		)	53			—			(735		)
Net after-tax change	2,260			(6,138		)	(3,878		)	263			—			(3,615		)
Balance at December 31, 2014	28,008			(89,763		)	(61,755		)	—			—			(61,755		)
Amounts reclassified from AOCI (pre-tax)	(28,531		)	5,952			(22,579		)	—			—			(22,579		)
Income tax impact of amounts reclassified	11,181			(2,332		)	8,849			—			—			8,849
Other OCI changes (pre-tax)	10,998			(4,405		)	6,593			—			72			6,665
Income tax impact of other OCI changes	(4,310		)	1,726			(2,584		)	—			(28		)	(2,612		)
Net after-tax change	(10,662		)	941			(9,721		)	—			44			(9,677		)
Balance at December 31, 2015	17,346			(88,822		)	(71,476		)	—			44			(71,432		)
Amounts reclassified from AOCI (pre-tax)	(22,139		)	5,504			(16,635		)	—			764			(15,871		)
Income tax impact of amounts reclassified	8,639			(2,148		)	6,491			—			(298		)	6,193
Other OCI changes (pre-tax)	778			(18,501		)	(17,723		)	—			(874		)	(18,597		)
Income tax impact of other OCI changes	(304		)	7,219			6,915			—			341			7,256
Net after-tax change	(13,026		)	(7,926		)	(20,952		)	—			(67		)	(21,019		)
Balance at December 31, 2016	$	4,320		$	(96,748	)	$	(92,428	)	$	—		$	(23	)	$	(92,451	)