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Income Taxes - Components of Company's Deferred Tax Assets and Liabilities (Footnote) (Detail) $ in Millions | 12 Months Ended
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Dec. 31, 2024 USD ($)
Operating Loss Carryforwards [Line Items] |
Net operating loss carryforwards | $ 156.2
Norway |
Operating Loss Carryforwards [Line Items] |
Tax losses and disallowed finance costs | $ 11.6
Carryforward term (in years) | 10

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