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Net Sales - Summary of Net Sales Disaggregated by Principal Markets (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Net sales:
Net sales	$ 169,487	$ 143,432
Chemical
Net sales:
Net sales	169,487	143,432
Chemical | AN and Nitric Acid
Net sales:
Net sales	75,347	57,618
Chemical | Urea ammonium nitrate (UAN)
Net sales:
Net sales	49,171	43,865
Chemical | Ammonia
Net sales:
Net sales	36,814	33,272
Chemical | Other
Net sales:
Net sales	$ 8,155	$ 8,677

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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