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Other Noncurrent Liabilities - Summary of Other Noncurrent Liabilities (Detail) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Other Liabilities Disclosure [Abstract]    
Reserve for uncertain tax positions $ 4,053 $ 4,053
OPEB 1,049 1,129
Insurance claims and expenses 611 665
Other 445 413
Total $ 6,158 $ 6,260