Accrued Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Accrued Liabilities, Current [Abstract]
Sales rebates payable	$ 11,759	$ 16,622
Property taxes payable	1,019	4,011
Accrued salaries	5,588	7,924
SAR Liability	2,041	3,087
Other accrued liabilities	3,239	3,143
Total accrued liabilities	$ 23,646	$ 34,787	[1]

[1] The balance sheet at December 31, 2019, as presented, is derived from the audited financial statements at that date.