Accounts and Other Receivables, Net - Schedule of Accounts Notes Loans and Financing Receivable (Detail) - USD ($) $ in Thousands |
Dec. 31, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Receivables [Abstract] | ||
| Accrued insurance recoveries | $ 138 | $ 346 |
| Other receivables | 79 | 163 |
| Total | 8,977 | 9,256 |
| CompX | ||
| Receivables [Abstract] | ||
| Trade receivables | 8,847 | 8,825 |
| Allowance for doubtful accounts | $ (87) | $ (78) |