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Lease Commitments - Operating Lease Balance Sheet Information (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Operating leases:
Operating lease assets, net of amortization	$ 55,982	$ 79,511
Current portion of operating lease liabilities	18,781	27,218
Long-term portion of operating lease liabilities	41,336	55,993
Public Service Company of New Mexico
Operating leases:
Operating lease assets, net of amortization	52,556	73,903
Current portion of operating lease liabilities	17,239	25,278
Long-term portion of operating lease liabilities	39,633	52,552
Texas-New Mexico Power Company
Operating leases:
Operating lease assets, net of amortization	3,426	5,264
Current portion of operating lease liabilities	1,543	1,882
Long-term portion of operating lease liabilities	$ 1,703	$ 3,155

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- Definition

Operating Lease, Assets and Liabilities, Lessee [Abstract]

+ References

No definition available.

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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