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Financial instruments - Additional Information (Details) | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2024 USD ($) $ / MWh MWh MMBTU $ / shares $ / MWh | Jun. 30, 2023 USD ($) | Jun. 30, 2024 USD ($) $ / MWh MWh MMBTU $ / shares $ / MWh | Jun. 30, 2023 USD ($) | Jun. 30, 2024 CAD ($) $ / MWh MWh MMBTU $ / MWh | Dec. 31, 2023 USD ($) | May 23, 2019 USD ($)
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Unrealized losses in AOCI |  |  | $ 41,232,000 |  |  |  |
Foreign currency gain (loss) | $ (10,933,000) | $ (130,000) | (4,416,000) | $ (15,555,000) |  |  |
Supplier finance program obligations | 77,658,000 |  | 77,658,000 |  |  | $ 62,173,000 |
Designated as a hedge |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Net investment in foreign operation | $ 12,000 | (2,924,000) | $ 502,000 | (2,801,000) |  |  |
U.S. dollar Subordinated unsecured notes | Senior Unsecured Notes |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Par value |  |  |  |  |  |  | $ 350,000,000
Senior unsecured notes | Senior Unsecured Notes |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Par value |  |  |  |  | $ 1,200,000,000 |  |
Swap |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Commodity volumes, gas | MMBTU | 2,262,896 |  | 2,262,896 |  | 2,262,896 |  |
Canadian Investments and Subsidiaries |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Foreign currency gain (loss) | $ 2,401,000 | 9,629,000 | $ (10,186,000) | 9,638,000 |  |  |
Foreign exchange contract |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Foreign currency gain (loss) | (2,195,000) | 7,009,000 | (4,413,000) | 6,942,000 |  |  |
Cross-currency interest rate swap |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Foreign currency gain (loss) | 1,186,000 | (3,967,000) | 5,190,000 | (4,348,000) |  |  |
Cross-currency interest rate swap | U.S. dollar Subordinated unsecured notes | Senior Unsecured Notes |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Par value |  |  |  |  | $ 300,000,000 |  |
Cross-currency interest rate swap | U.S. dollar Subordinated unsecured notes | Senior Unsecured Notes | Designated as a hedge |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Par value |  |  |  |  | $ 400,000,000 |  |
Currency Swap | Senior unsecured notes | Senior Unsecured Notes |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Foreign currency gain (loss) | $ (75,000) | $ (4,975,000) | $ 6,898,000 | $ (4,987,000) |  |  |
Interest rate swaps designated as a hedge |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Notional quantity (MW-hrs) | $ / MWh | 319,885 |  | 319,885 |  | 319,885 |  |
Receive average prices (per MW-hr) | $ / MWh | 25.15 |  | 25.15 |  | 25.15 |  |
Transmission congestion rights |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Notional quantity (MW-hrs) | MWh | 2,433,240 |  | 2,433,240 |  | 2,433,240 |  |
Minimum | Atlantica Yield Energy Solutions Canada Inc. | Measurement Input, Discount Rate |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Alternative investment, measurement input (percent) | 0.0810 |  | 0.0810 |  | 0.0810 |  |
Minimum | Atlantica Yield Energy Solutions Canada, Inc | Measurement Input, Price Volatility |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Alternative investment, measurement input (percent) | 0.2747 |  | 0.2747 |  | 0.2747 |  |
Minimum | Energy contracts |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Forward price | $ / MWh | 18.90 |  | 18.90 |  | 18.90 |  |
Derivative auction price (in USD per share) | $ / shares | $ 0 |  | $ 0 |  |  |  |
Minimum | Transmission congestion rights |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Receive average prices (per MW-hr) | $ / MWh | 0.84 |  | 0.84 |  | 0.84 |  |
Maximum | Atlantica Yield Energy Solutions Canada Inc. | Measurement Input, Discount Rate |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Alternative investment, measurement input (percent) | 0.0860 |  | 0.0860 |  | 0.0860 |  |
Maximum | Atlantica Yield Energy Solutions Canada, Inc | Measurement Input, Price Volatility |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Alternative investment, measurement input (percent) | 0.3319 |  | 0.3319 |  | 0.3319 |  |
Maximum | Energy contracts |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Forward price | $ / MWh | 154.55 |  | 154.55 |  | 154.55 |  |
Derivative auction price (in USD per share) | $ / shares | $ 31.95 |  | $ 31.95 |  |  |  |
Maximum | Transmission congestion rights |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Receive average prices (per MW-hr) | $ / MWh | 19.03 |  | 19.03 |  | 19.03 |  |
Weighted average useful lives | Atlantica Yield Energy Solutions Canada Inc. | Measurement Input, Discount Rate |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Alternative investment, measurement input (percent) | 0.0826 |  | 0.0826 |  | 0.0826 |  |
Weighted average useful lives | Energy contracts |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Forward price | $ / MWh | 39.17 |  | 39.17 |  | 39.17 |  |
Derivative auction price (in USD per share) | $ / shares | $ 4.53 |  | $ 4.53 |  |  |  |
Weighted average useful lives | Transmission congestion rights |  |  |  |  |  |  |
Fair Value of Financial Instruments [Line Items] |  |  |  |  |  |  |
Receive average prices (per MW-hr) | $ / MWh | 4.37 |  | 4.37 |  | 4.37 |  |

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