Number of joint ventures in which the Company has an interest.

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- Definition

The percentage interest in a proportionately consolidated joint venture.

+ References

No definition available.

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- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The cash outflow from advancing money to an affiliate (an entity that is related but not strictly controlled by the entity).

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Commitments and Contingencies - Investment and Strategic Arrangements (Details) $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2025 USD ($) constructionProject	Dec. 31, 2025 CAD ($) constructionProject	Dec. 31, 2024 USD ($)	Dec. 31, 2024 CAD ($)
Commitments and Contingencies [Line Items]
Number of joint ventures \| constructionProject		9	9
Proportionately Consolidated Non-Controlled Joint Venture
Commitments and Contingencies [Line Items]
Payments for advance to affiliate \| $	$ 0.5
Proportionately Consolidated Non-Controlled Joint Venture \| Performance and Payment Bonds
Commitments and Contingencies [Line Items]
Outstanding bonds, amount		$ 7.1	$ 9.7	$ 6.7	$ 9.7
Joint Ventures That Provide Electrical Transmission Infrastructure Services \| Minimum \| Proportionately Consolidated Non-Controlled Joint Venture
Commitments and Contingencies [Line Items]
Proportionately consolidated non-controlled joint venture, ownership percentage		85.00%	85.00%
Joint Ventures That Provide Electrical Transmission Infrastructure Services \| Maximum \| Proportionately Consolidated Non-Controlled Joint Venture
Commitments and Contingencies [Line Items]
Proportionately consolidated non-controlled joint venture, ownership percentage		90.00%	90.00%
Joint Venture Civil Construction Project \| Minimum \| Proportionately Consolidated Non-Controlled Joint Venture
Commitments and Contingencies [Line Items]
Proportionately consolidated non-controlled joint venture, ownership percentage		25.00%	25.00%
Joint Venture Civil Construction Project \| Maximum \| Proportionately Consolidated Non-Controlled Joint Venture
Commitments and Contingencies [Line Items]
Proportionately consolidated non-controlled joint venture, ownership percentage		50.00%	50.00%
Canadian Joint Venture \| Proportionately Consolidated Non-Controlled Joint Venture
Commitments and Contingencies [Line Items]
Proportionately consolidated non-controlled joint venture, ownership percentage		35.00%	35.00%