Lease Commitments - Schedule of Future Expected Lease Payments (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Financing
2023	$ 8,029
2024	6,606
2025	4,734
2026	2,988
2027	1,539
Later years	1,162
Total minimum lease payments	25,058
Less: Imputed interest	1,572
Lease liabilities as of December 31, 2022	23,486
Operating
2023	19,037
2024	9,334
2025	7,595
2026	7,490
2027	7,018
Later years	17,366
Total minimum lease payments	67,840
Less: Imputed interest	7,723
Lease liabilities as of December 31, 2022	60,117
Public Service Company of New Mexico
Financing
2023	3,764
2024	3,031
2025	2,140
2026	1,570
2027	1,066
Later years	788
Total minimum lease payments	12,359
Less: Imputed interest	839
Lease liabilities as of December 31, 2022	11,520
Operating
2023	17,566
2024	8,294
2025	7,070
2026	7,041
2027	7,018
Later years	17,366
Total minimum lease payments	64,355
Less: Imputed interest	7,483
Lease liabilities as of December 31, 2022	56,872
Texas-New Mexico Power Company
Financing
2023	4,210
2024	3,562
2025	2,592
2026	1,417
2027	473
Later years	375
Total minimum lease payments	12,629
Less: Imputed interest	734
Lease liabilities as of December 31, 2022	11,895
Operating
2023	1,330
2024	1,030
2025	525
2026	449
2027	0
Later years	0
Total minimum lease payments	3,334
Less: Imputed interest	88
Lease liabilities as of December 31, 2022	$ 3,246