Commitments and Contingencies - Navajo National Allottee Matters (Details) - Public Service Company of New Mexico $ in Millions		1 Months Ended	3 Months Ended
	Jul. 29, 2022 USD ($)	Sep. 30, 2012 land_owner	Dec. 31, 2022 USD ($) allotment_parcel	Dec. 01, 2015 allotment_parcel	Jul. 13, 2015 a	Jan. 22, 2015 allotment_parcel
Loss Contingencies [Line Items]
Payments for legal settlements | $	$ 19.8
Navajo Nation Allottee Matters
Loss Contingencies [Line Items]
Number of landowners involved in the appeal | land_owner		43
Number of allotments where landowners are revoking rights of way renewal consents (in allotment parcels)			6
Allotments with right-of-way renewals not previously contested (in allotment parcels)						10
Acres of land at issue (in acres) | a					15.49
Number of allotment parcels that cannot be condemned				2
Number of allotment parcels at issue				5
Payments for legal settlements | $			$ 1.5