Other noncurrent liabilities - Summary of Other Noncurrent Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Other noncurrent liabilities
Reserve for uncertain tax positions	$ 2,543	$ 2,714
OPEB	595	637
Insurance claims and expenses	571	625
Other	275	303
Total	$ 3,984	$ 4,279