Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Feb. 25, 2022	Dec. 31, 1997
Utility Plant Intangible Assets:
Intangible assets	$ 35,946	$ 35,959
Utility plant net intangible assets	15,057	16,367
Other intangible asset	28,386	0
Concession fees
Utility Plant Intangible Assets:
Intangible assets	6,800	6,800	$ 1,600	$ 6,800
Accumulated amortization of intangible assets	6,754	6,693
Purchase premium customer relationships
Utility Plant Intangible Assets:
Intangible assets	13,400	13,400
Accumulated amortization of intangible assets	3,774	2,881
Other intangibles
Utility Plant Intangible Assets:
Intangible assets	15,746	15,759
Accumulated amortization of intangible assets	$ 10,361	$ 10,018