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Goodwill and Intangible Assets - Summary of Intangible Assets (Detail) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Acquired Finite-Lived Intangible Assets [Line Items]    
Net Carrying Amount $ 307 $ 658
Customer Relationships [Member]    
Acquired Finite-Lived Intangible Assets [Line Items]    
Net Carrying Amount 307 658
Gross Carrying Amount 5,700 5,700
Finite-Lived Intangible Assets, Accumulated Amortization (5,400) $ (5,000)
Other Intangible Assets    
Acquired Finite-Lived Intangible Assets [Line Items]    
EU ETS Tax Credits 5,900  
Goodwill [Line Items]    
EU ETS Tax Credits $ 5,900