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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
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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)

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