XML 50 R38.htm IDEA: XBRL DOCUMENT v3.21.1
Accounts and Other Receivables, Net - Schedule of Accounts Notes Loans and Financing Receivable (Detail) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Receivables [Abstract]    
Other receivables $ 340 $ 393
Accrued insurance recoveries 10 18
Total 17,208 11,142
CompX    
Receivables [Abstract]    
Trade receivables 16,928 10,801
Allowance for doubtful accounts $ (70) $ (70)