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Accounts and Other Receivables, Net - Schedule of Accounts Notes Loans and Financing Receivable (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Accounts Notes And Loans Receivable [Line Items]    
Accrued insurance recoveries $ 43 $ 18
Other receivables 20 393
Total 15,609 11,142
CompX    
Accounts Notes And Loans Receivable [Line Items]    
Trade receivables 15,616 10,801
Allowance for doubtful accounts $ (70) $ (70)