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Derivative Instruments, Gain (Loss) Frozen due to Hedge Designation

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Number of Interest Rate Swap Contracts

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Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.

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Value of input used to measure alternative investment.

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The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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Face (par) amount of debt instrument at time of issuance.

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The average strike price on the group of price risk option contracts such as put options or call options.

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The forward price on the price risk forward or futures contract, such as a gas futures contract.

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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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Nominal number of units used to calculate payment on derivative.

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Nominal or face amount used to calculate payment on derivative.

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Gross amount of debt extinguished.

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Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Financial instruments - Additional Information (Detail)	1 Months Ended	3 Months Ended			6 Months Ended
Financial instruments - Additional Information (Detail)	Feb. 28, 2022 CAD ($)	Jun. 30, 2023 USD ($) dth MWh derivative_contract $ / MWh	Jun. 30, 2023 CAD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) dth MWh derivative_contract $ / MWh	Jun. 30, 2023 CAD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 CAD ($) dth MWh derivative_contract	Dec. 31, 2022 USD ($)	Dec. 17, 2022 CAD ($) MWh $ / MWh	Jan. 31, 2022 CAD ($)	May 23, 2019 USD ($)
Derivative [Line Items]
Nonmonetary notional amount \| dth		2,755,733			2,755,733			2,755,733
Number of interest rate swap contracts \| derivative_contract		2			2			2
Foreign currency gain (loss)		$ 130,000		$ (48,440,000)	$ 15,555,000		$ (40,595,000)
Supplier Financing Programs
Derivative [Line Items]
Accounts payable		63,328,000			63,328,000				$ 16,785,000
Non-regulated Energy Sales
Derivative [Line Items]
Unrealized gains (loss) in AOCI to be reclassified					19,722,000
U.S. dollar Subordinated unsecured notes \| Unsecured Debt
Derivative [Line Items]
Par value								$ 300,000,000				$ 350,000,000
Debt repaid upon maturity	$ 200,000,000
Canadian dollar Senior unsecured notes \| Unsecured Debt
Derivative [Line Items]
Par value								1,200,000,000
Designated as a hedge \| Canadian dollar Senior unsecured notes
Derivative [Line Items]
Amortization of AOCI gains frozen as a result of hedge dedesignation		2,924,000		(2,149,000)	2,801,000		(2,544,000)
Canadian Investments and Subsidiaries
Derivative [Line Items]
Foreign currency gain (loss)		9,629,000		395,000	9,638,000		220,000
Currency Swap
Derivative [Line Items]
Cross-currency interest rate swap											$ 400,000,000
Currency Swap \| U.S. dollar Subordinated unsecured notes \| Unsecured Debt
Derivative [Line Items]
Par value								$ 400,000,000
Currency Swap \| Canadian dollar Senior unsecured notes \| Unsecured Debt
Derivative [Line Items]
Foreign currency gain (loss)		(3,967,000)		8,132,000	(4,348,000)		6,080,000
Interest rate swaps designated as a hedge
Derivative [Line Items]
Nonmonetary notional amount \| MWh										388,170
Receive average prices (per MW-hr) \| $ / MWh										25.15
Derivative notional amount										$ 390,000,000
Interest rate swaps designated as a hedge \| U.S. dollar Subordinated unsecured notes
Derivative [Line Items]
Derivative notional amount		350,000,000			350,000,000
Interest rate swaps designated as a hedge \| Canadian dollar Senior unsecured notes \| Unsecured Debt
Derivative [Line Items]
Foreign currency gain (loss)			$ (4,975,000)	8,439,000		$ (4,987,000)	14,252,000
Foreign exchange contract
Derivative [Line Items]
Foreign currency gain (loss)		$ (6,942,000)		$ 14,929,000	$ (7,009,000)		$ 10,697,000
Transmission congestion rights
Derivative [Line Items]
Nonmonetary notional amount \| MWh		919,014			919,014			919,014
Minimum \| Atlantica Yield Energy Solutions Canada Inc. \| Measurement Input, Discount Rate
Derivative [Line Items]
Alternative investment, measurement input (percent)		0.0781			0.0781			0.0781
Minimum \| Atlantica Yield Energy Solutions Canada, Inc \| Measurement Input, Price Volatility
Derivative [Line Items]
Alternative investment, measurement input (percent)		0.2699			0.2699			0.2699
Minimum \| Energy contracts
Derivative [Line Items]
Forward price \| $ / MWh		24.27			24.27
Derivative auction price \| $ / MWh		$ 0			$ 0
Minimum \| Transmission congestion rights
Derivative [Line Items]
Receive average prices (per MW-hr) \| $ / MWh		0.64			0.64
Maximum \| Atlantica Yield Energy Solutions Canada Inc. \| Measurement Input, Discount Rate
Derivative [Line Items]
Alternative investment, measurement input (percent)		0.0831			0.0831			0.0831
Maximum \| Atlantica Yield Energy Solutions Canada, Inc \| Measurement Input, Price Volatility
Derivative [Line Items]
Alternative investment, measurement input (percent)		0.3489			0.3489			0.3489
Maximum \| Energy contracts
Derivative [Line Items]
Forward price \| $ / MWh		73.20			73.20
Derivative auction price \| $ / MWh		$ 23.98			$ 23.98
Maximum \| Transmission congestion rights
Derivative [Line Items]
Receive average prices (per MW-hr) \| $ / MWh		19.06			19.06
Weighted Average \| Atlantica Yield Energy Solutions Canada Inc. \| Measurement Input, Discount Rate
Derivative [Line Items]
Alternative investment, measurement input (percent)		0.0812			0.0812			0.0812
Weighted Average \| Energy contracts
Derivative [Line Items]
Forward price \| $ / MWh		35.79			35.79
Derivative auction price \| $ / MWh		$ 5.04			$ 5.04
Weighted Average \| Transmission congestion rights
Derivative [Line Items]
Receive average prices (per MW-hr) \| $ / MWh		5.97			5.97