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Income taxes - Summary of Valuation Allowance for Deferred Tax Assets (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Deferred Tax Assets, Valuation Allowance [Roll Forward] |  |
Beginning balance | $ 107,583 | $ 27,471
Charged to income tax expense | 10,786 | 41,702
Charged (reduction) to OCI | (16,696) | 40,613
Reductions to other accounts | (4,329) | (2,203)
Ending balance | $ 97,344 | $ 107,583

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- Definition Deferred Tax Assets, Valuation Allowance + References No definition available. + Details
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- Definition Valuation Allowance Deferred Tax Asset, Charged To Income Tax Expense (Recovery) + References No definition available. + Details
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- Definition Valuation Allowance Deferred Tax Asset, Reduction To Other Comprehensive Income OCI + References No definition available. + Details
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- Definition Valuation Allowance Deferred Tax Asset, Reductions To Other Assets + References No definition available. + Details
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-2 + Details
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