Accumulated Other Comprehensive Income (Loss) (Tables)

3 Months Ended

Mar. 31, 2017

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

Information regarding accumulated other comprehensive income (loss) for the three months ended March 31, 2017 and 2016 is as follows:

	Accumulated Other Comprehensive Income (Loss)
	PNM									PNMR
	Unrealized									Fair Value
	Gains on									Adjustment
	Available-for-			Pension						for Cash
	Sale			Liability						Flow
	Securities			Adjustment			Total			Hedges			Total
	(In thousands)
Balance at December 31, 2016	$	4,320		$	(96,748	)	$	(92,428	)	$	(23	)	$	(92,451	)
Amounts reclassified from AOCI (pre-tax)	(2,763		)	1,618			(1,145		)	112			(1,033		)
Income tax impact of amounts reclassified	1,078			(631		)	447			(44		)	403
Other OCI changes (pre-tax)	7,766			—			7,766			(185		)	7,581
Income tax impact of other OCI changes	(3,030		)	—			(3,030		)	72			(2,958		)
Net after-tax change	3,051			987			4,038			(45		)	3,993
Balance at March 31, 2017	$	7,371		$	(95,761	)	$	(88,390	)	$	(68	)	$	(88,458	)

Balance at December 31, 2015	$	17,346		$	(88,822	)	$	(71,476	)	$	44		$	(71,432	)
Amounts reclassified from AOCI (pre-tax)	(11,210		)	1,376			(9,834		)	146			(9,688		)
Income tax impact of amounts reclassified	4,374			(537		)	3,837			(57		)	3,780
Other OCI changes (pre-tax)	5,458			—			5,458			(1,289		)	4,169
Income tax impact of other OCI changes	(2,130		)	—			(2,130		)	503			(1,627		)
Net after-tax change	(3,508		)	839			(2,669		)	(697		)	(3,366		)
Balance at March 31, 2016	$	13,838		$	(87,983	)	$	(74,145	)	$	(653	)	$	(74,798	)