Lease Commitments (Tables)

12 Months Ended

Dec. 31, 2017

Leases [Abstract]

Schedule of Rent Expense

Operating lease expense, including the PVNGS and EIP leases, was:

	PNMR		PNM		TNMP
	(In thousands)
2017	$	35,972	$	31,817	$	3,570
2016	$	37,432	$	32,843	$	3,748
2015	$	61,088	$	55,994	$	3,688

Schedule of Future Minimum Operating Lease Payments

Future minimum operating lease payments at December 31, 2017 are shown below:

	PNMR		PNM		TNMP
	(In thousands)
2018	$	26,802	$	25,726	$	791
2019	25,638		25,241		296
2020	25,208		25,122		—
2021	25,122		25,122		—
2022	25,122		25,122		—
Later years	60,708		60,708		—
Total minimum lease payments	$	188,600	$	187,041	$	1,087