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Net Sales - Summary of Net Sales Disaggregated by Principal Markets (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Net sales:    
Net sales $ 198,981 $ 98,116
Chemical    
Net sales:    
Net sales 198,981 98,116
Chemical | AN and Nitric Acid    
Net sales:    
Net sales 71,800 49,837
Chemical | Urea ammonium nitrate (UAN)    
Net sales:    
Net sales 56,569 17,638
Chemical | Ammonia    
Net sales:    
Net sales 59,342 21,165
Chemical | Other    
Net sales:    
Net sales $ 11,270 $ 9,476