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Property, plant and equipment - Schedule of Interest and AFUDC Capitalized (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Schedule of Capitalization [Line Items]
Total	$ 6,352	$ 12,812
Allowance for borrowed funds
Schedule of Capitalization [Line Items]
AFUDC capitalized on regulated property:	4,604	9,440
Allowance for equity funds
Schedule of Capitalization [Line Items]
AFUDC capitalized on regulated property:	$ 1,748	$ 3,372

X

- Definition

Amount of interest capitalized, including amount of allowance for funds used during construction.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 980
-SubTopic 835
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479123/980-835-45-1

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- Definition

Amount capitalized of allowance for funds used during construction.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 980
-SubTopic 835
-Section 25
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478698/980-835-25-1

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- Definition

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+ References

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