Revenue - Revenue Disaggregated by Product (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Net sales	$ 226,261	$ 222,873
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-02-01
Disaggregation of Revenue [Line Items]
Remaining performance obligation, expected timing of satisfaction, period	7 years 3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-04-01
Disaggregation of Revenue [Line Items]
Remaining performance obligation, expected timing of satisfaction, period	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Disaggregation of Revenue [Line Items]
Remaining performance obligation, expected timing of satisfaction, period	1 year
Net sales, exclusive of freight and other
Disaggregation of Revenue [Line Items]
Net sales	$ 210,010	210,841
Ammonia
Disaggregation of Revenue [Line Items]
Net sales	37,499	42,011
UAN
Disaggregation of Revenue [Line Items]
Net sales	164,341	159,607
Urea products
Disaggregation of Revenue [Line Items]
Net sales	8,170	9,223
Freight revenue (1)
Disaggregation of Revenue [Line Items]
Net sales	10,936	9,214
Other revenue (2)
Disaggregation of Revenue [Line Items]
Net sales	$ 5,315	$ 2,818