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Lease Commitments - Schedule of Supplemental Cash Flows Related to Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 9,319	$ 9,318
Operating cash flows from financing leases	55	31
Finance cash flows from financing leases	560	386
Non-cash information related to right-of-use assets obtained in exchange for lease obligations:
Operating leases	0	1,079
Financing leases	4,077	492
PNM
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	9,193	9,244
Operating cash flows from financing leases	42	22
Finance cash flows from financing leases	377	260
Non-cash information related to right-of-use assets obtained in exchange for lease obligations:
Operating leases	0	1,079
Financing leases	2,730	441
TNMP
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	126	49
Operating cash flows from financing leases	14	8
Finance cash flows from financing leases	161	104
Non-cash information related to right-of-use assets obtained in exchange for lease obligations:
Operating leases	0	0
Financing leases	$ 1,347	$ 51

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Amount of interest paid on finance lease liability.

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Amount of cash outflow for principal payment on finance lease.

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