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Income taxes (Tables) | 6 Months Ended
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Jun. 30, 2023
Income Tax Disclosure [Abstract] |
Schedule of Provision for Income Taxes | The differences are as follows:
| Three months ended June 30 |  | Six months ended June 30
| 2023 |  | 2022 |  | 2023 |  | 2022
Expected income tax recovery at Canadian statutory rate | $ | (84,596) |  |  | $ | (22,562) |  |  | $ | (11,903) |  |  | $ | (6,119) |
Increase (decrease) resulting from: |  |  |  |  |  |  |
Effect of differences in tax rates on transactions in and within foreign jurisdictions and change in tax rates | (5,560) |  |  | (6,562) |  |  | (16,718) |  |  | (19,039) |
Adjustments from investments carried at fair value | 40,357 |  |  | 17,216 |  |  | 11,092 |  |  | 18,229 |
Change in valuation allowance | 676 |  |  | (1,582) |  |  | (791) |  |  | (1,731) |
Non-controlling interests share of income | 2,201 |  |  | 4,587 |  |  | 12,393 |  |  | 15,640 |
Acquisition-related state deferred tax adjustments | — |  |  | — |  |  | — |  |  | 7,600 |
Tax credits | (8,095) |  |  | (11,992) |  |  | (20,505) |  |  | (22,023) |
Amortization and settlement of excess deferred income tax | (2,456) |  |  | (2,296) |  |  | (6,207) |  |  | (6,329) |
Other | 1,515 |  |  | 372 |  |  | 1,382 |  |  | 405 |
Income tax recovery | $ | (55,958) |  |  | $ | (22,819) |  |  | $ | (31,257) |  |  | $ | (13,367) |
Summary of Valuation Allowance | The following table illustrates the movement in the deferred tax valuation allowance:
| Three months ended June 30 |  | Six months ended June 30
| 2023 |  | 2022 |  | 2023 |  | 2022
Beginning balance | $ | 97,396 |  |  | $ | 28,959 |  |  | $ | 107,583 |  |  | $ | 27,470 |
Charged to income tax recovery | 676 |  |  | (1,582) |  |  | (791) |  |  | (1,731) |
Charged (reduction) to OCI | (6,418) |  |  | 2,664 |  |  | (15,138) |  |  | 4,302 |
Reductions to other accounts | — |  |  | (211) |  |  | — |  |  | (211) |
Ending balance | $ | 91,654 |  |  | $ | 29,830 |  |  | $ | 91,654 |  |  | $ | 29,830 |

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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Paragraph 12 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 + Details
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- Definition Tabular disclosure of valuation allowances to reduce deferred tax assets to net realizable value, including identification of the deferred tax asset more likely than not will not be fully realized and the corresponding amount of the valuation allowance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-2 + Details
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