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Utility Plant Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Jan. 08, 2020
Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 36,276	$ 35,167
Net intangible assets	20,650	21,270
Concession fees
Finite-Lived Intangible Assets [Line Items]
Intangible assets	6,800	6,800	$ 5,000
Accumulated amortization of intangible assets	6,596	6,324
Purchase premium customer relationships
Finite-Lived Intangible Assets [Line Items]
Intangible assets	13,400	13,400
Accumulated amortization of intangible assets	1,988	1,094
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Intangible assets	16,076	14,967
Accumulated amortization of intangible assets	$ 7,042	$ 6,479

X

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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-Name Accounting Standards Codification
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