Lease Commitments - Schedule of Future Expected Lease Payments (Details) $ in Thousands	Sep. 30, 2024 USD ($)
Financing
Remainder of 2024	$ 2,504
2025	8,969
2026	7,159
2027	4,458
2028	1,766
Later years	798
Total minimum lease payments	25,654
Less: Imputed interest	1,962
Lease liabilities	23,692
Battery Storage
Operating
Remainder of 2024	2,947
2025	11,786
2026	11,786
2027	11,786
2028	11,786
Later years	172,254
Total minimum lease payments	222,345
Less: Imputed interest	88,557
Lease liabilities	133,788
Other
Operating
Remainder of 2024	278
2025	7,967
2026	7,201
2027	7,131
2028	7,133
Later years	11,013
Total minimum lease payments	40,723
Less: Imputed interest	4,985
Lease liabilities	35,738
PNM
Financing
Remainder of 2024	1,116
2025	4,023
2026	3,482
2027	2,240
2028	1,048
Later years	639
Total minimum lease payments	12,548
Less: Imputed interest	1,029
Lease liabilities	11,519
PNM \| Battery Storage
Operating
Remainder of 2024	2,947
2025	11,786
2026	11,786
2027	11,786
2028	11,786
Later years	172,254
Total minimum lease payments	222,345
Less: Imputed interest	88,557
Lease liabilities	133,788
PNM \| Other
Operating
Remainder of 2024	92
2025	7,092
2026	7,042
2027	7,046
2028	7,049
Later years	10,587
Total minimum lease payments	38,908
Less: Imputed interest	4,763
Lease liabilities	34,145
TNMP
Financing
Remainder of 2024	1,309
2025	4,673
2026	3,412
2027	1,975
2028	636
Later years	159
Total minimum lease payments	12,164
Less: Imputed interest	857
Lease liabilities	11,307
Operating
Remainder of 2024	170
2025	808
2026	90
2027	14
2028	11
Later years	0
Total minimum lease payments	1,093
Less: Imputed interest	53
Lease liabilities	$ 1,040

Finance Lease, Liability, to be Paid, after Year Four

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Lessee, Operating Lease, Liability, to be Paid, after Year Four

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Present value of lessee's discounted obligation for lease payments from finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-6

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-1

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Amount of lessee's undiscounted obligation for lease payments for finance lease.

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Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in remainder of current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-6

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease having initial or remaining lease term in excess of one year to be paid in remainder of current fiscal year.

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Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-1

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