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Accumulated other comprehensive income (loss) | 12 Months Ended
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Dec. 31, 2024
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Accumulated other comprehensive income (loss) | Accumulated other comprehensive income (loss) AOCI consists of the following balances, net of tax:
| Foreign currency cumulative translation |  | Unrealized gain (loss) on cash flow hedges |  |  |  | Pension and post-employment actuarial changes |  | Total
Balance, January 1, 2023 | $ | (98,467) |  |  | $ | (97,809) |  |  |  |  | $ | 36,213 |  |  | $ | (160,063) |
Other comprehensive income (loss) | (3,788) |  |  | 57,351 |  |  |  |  | 8,395 |  |  | 61,958 |
Amounts reclassified from AOCI to the consolidated statements of operations | (1,598) |  |  | 2,136 |  |  |  |  | (3,702) |  |  | (3,164) |
Net current period OCI | $ | (5,386) |  |  | $ | 59,487 |  |  |  |  | $ | 4,693 |  |  | $ | 58,794 |
OCI attributable to the non-controlling interests | (1,017) |  |  | — |  |  |  |  | — |  |  | (1,017) |
Net current period OCI attributable to shareholders of AQN | $ | (6,403) |  |  | $ | 59,487 |  |  |  |  | $ | 4,693 |  |  | $ | 57,777 |
Balance, December 31, 2023 | $ | (104,870) |  |  | $ | (38,322) |  |  |  |  | $ | 40,906 |  |  | $ | (102,286) |
Other comprehensive income | 33,821 |  |  | 79,381 |  |  |  |  | 12,814 |  |  | 126,016 |
Amounts reclassified from AOCI to the consolidated statements of operations | 626 |  |  | (27,130) |  |  |  |  | (5,804) |  |  | (32,308) |
Net current period OCI | $ | 34,447 |  |  | $ | 52,251 |  |  |  |  | $ | 7,010 |  |  | $ | 93,708 |
OCI attributable to the non-controlling interests | (4,617) |  |  | — |  |  |  |  | — |  |  | (4,617) |
Net current period OCI attributable to shareholders of AQN | $ | 29,830 |  |  | $ | 52,251 |  |  |  |  | $ | 7,010 |  |  | $ | 89,091 |
Amounts reclassified from AOCI to the consolidated statements of operations related to discontinued operations (note 24(b)) | — |  |  | 94,593 |  |  |  |  | — |  |  | 94,593 |
Balance, December 31, 2024 | $ | (75,040) |  |  | $ | 108,522 |  |  |  |  | $ | 47,916 |  |  | $ | 81,398 |
Amounts reclassified from AOCI for foreign currency cumulative translation affected interest expense and derivative gain (loss); those for unrealized gain (loss) on cash flow hedges affected revenue from non-regulated energy sales, interest expense and derivative gain (loss) while those for pension and post-employment actuarial changes affected pension and post-employment non-service costs.

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/220/tableOfContent + Details
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