Related Party Transactions (Tables)

6 Months Ended

Jun. 30, 2019

Related Party Transactions [Abstract]

Schedule of Related Party Transactions

The table below summarizes the nature and amount of related party transactions of PNMR, PNM, TNMP, and NMRD:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2019		2018		2019		2018
	(In thousands)
Services billings:
PNMR to PNM	$	22,925	$	22,471	$	49,751	$	46,150
PNMR to TNMP	8,385		8,058		18,443		16,423
PNM to TNMP	114		90		189		177
TNMP to PNMR	36		35		71		70
PNMR to NMRD	54		51		95		130
Renewable energy purchases:
PNM from NMRD	949		1,004		1,574		1,374
Interconnection billings:
PNM to NMRD	—		2,052		—		2,052
PNM to PNMR	—		68,200		—		68,200
Interest billings:
PNMR to PNM	972		747		1,905		809
PNM to PNMR	77		70		149		136
PNMR to TNMP	10		13		42		22
Income tax sharing payments:
PNMR to PNM	—		—		—		—
TNMP to PNMR	—		—		—		—