Revenue (Disaggregation of Revenues) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Total	$ 648,843	$ 738,978
Specialty nutrients
Disaggregation of Revenue [Line Items]
Total	69,724	69,997
Primary nutrients
Disaggregation of Revenue [Line Items]
Total	67,312	64,750
Products and co-products
Disaggregation of Revenue [Line Items]
Total	408,509	483,575
Propane
Disaggregation of Revenue [Line Items]
Total	69,796	76,523
Other
Disaggregation of Revenue [Line Items]
Total	33,502	44,133
Trade
Disaggregation of Revenue [Line Items]
Total	174,113	178,079
Trade | Specialty nutrients
Disaggregation of Revenue [Line Items]
Total	0	0
Trade | Primary nutrients
Disaggregation of Revenue [Line Items]
Total	0	0
Trade | Products and co-products
Disaggregation of Revenue [Line Items]
Total	102,344	88,966
Trade | Propane
Disaggregation of Revenue [Line Items]
Total	69,796	76,523
Trade | Other
Disaggregation of Revenue [Line Items]
Total	1,973	12,590
Ethanol
Disaggregation of Revenue [Line Items]
Total	307,412	396,957
Ethanol | Specialty nutrients
Disaggregation of Revenue [Line Items]
Total	0	0
Ethanol | Primary nutrients
Disaggregation of Revenue [Line Items]
Total	0	0
Ethanol | Products and co-products
Disaggregation of Revenue [Line Items]
Total	306,165	394,609
Ethanol | Propane
Disaggregation of Revenue [Line Items]
Total	0	0
Ethanol | Other
Disaggregation of Revenue [Line Items]
Total	1,247	2,348
Nutrient & Industrial
Disaggregation of Revenue [Line Items]
Total	167,318	163,942
Nutrient & Industrial | Specialty nutrients
Disaggregation of Revenue [Line Items]
Total	69,724	69,997
Nutrient & Industrial | Primary nutrients
Disaggregation of Revenue [Line Items]
Total	67,312	64,750
Nutrient & Industrial | Products and co-products
Disaggregation of Revenue [Line Items]
Total	0	0
Nutrient & Industrial | Propane
Disaggregation of Revenue [Line Items]
Total	0	0
Nutrient & Industrial | Other
Disaggregation of Revenue [Line Items]
Total	$ 30,282	$ 29,195