Trade Accounts and Notes Receivable (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Accounts receivable	$ 233,274	$ 218,098
Notes receivable	2,280	4,850
Total trade accounts and notes receivable	235,554	222,948
Less allowance for doubtful accounts	1,145	893
Trade accounts and notes receivable, net	$ 234,409	$ 222,055