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Segment - Summary of Information about Reported Segment Revenue, Measures of Segment's Profit or Loss, Significant Segment Expenses and Measure of Segment's Assets (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Segment Reporting [Abstract]      
Net sales $ 522,400 $ 593,709 $ 901,711
Less:      
Cost of sales excluding depreciation, amortization and turnaround expense 362,562 436,634 457,327
Depreciation and amortization 74,260 68,385 66,782
Turnaround expense 37,781 2,430 29,235
Total cost of sales 474,603 507,449 553,344
Selling, general and administrative      
Wages and benefits 23,191 20,403 18,222
Other selling general and administrative 18,576 16,177 21,206
Total selling general and administrative 41,767 36,580 39,428
Interest expense 34,452 41,136 46,827
(Gain) loss on extinguishments of debt (3,013) (8,644) 113
Loss from asset write-down and disposals 11,703 3,613 1,219
Income tax (benefit) provision (6,684) 5,973 39,174
Other segment items (11,075) (20,321) (8,741)
Net (loss) income (19,353) 27,923 230,347
Reconciliation of profit or loss      
Adjustments and reconciling items $ 0 $ 0 $ 0