Revenue (Disaggregation of Revenues) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Total	$ 2,211,537	$ 1,479,686	$ 1,344,359
Specialty nutrients
Disaggregation of Revenue [Line Items]
Total	270,842	234,806	285,116
Primary nutrients
Disaggregation of Revenue [Line Items]
Total	500,891	396,515	411,260
Products and co-products
Disaggregation of Revenue [Line Items]
Total	1,027,315	642,896	348,475
Propane and frac sand
Disaggregation of Revenue [Line Items]
Total	270,695	148,175	238,100
Other
Disaggregation of Revenue [Line Items]
Total	141,794	57,294	61,408
Trade
Disaggregation of Revenue [Line Items]
Total	623,754	405,993	556,816
Trade | Specialty nutrients
Disaggregation of Revenue [Line Items]
Total	0	0	46,065
Trade | Primary nutrients
Disaggregation of Revenue [Line Items]
Total	0	0	33,612
Trade | Products and co-products
Disaggregation of Revenue [Line Items]
Total	313,195	234,219	217,297
Trade | Propane and frac sand
Disaggregation of Revenue [Line Items]
Total	270,695	148,175	238,100
Trade | Other
Disaggregation of Revenue [Line Items]
Total	39,864	23,599	21,742
Renewables
Disaggregation of Revenue [Line Items]
Total	720,888	410,734	140,813
Renewables | Specialty nutrients
Disaggregation of Revenue [Line Items]
Total	0	0	0
Renewables | Primary nutrients
Disaggregation of Revenue [Line Items]
Total	0	0	0
Renewables | Products and co-products
Disaggregation of Revenue [Line Items]
Total	714,120	408,677	131,178
Renewables | Propane and frac sand
Disaggregation of Revenue [Line Items]
Total	0	0	0
Renewables | Other
Disaggregation of Revenue [Line Items]
Total	6,768	2,057	9,635
Plant Nutrient
Disaggregation of Revenue [Line Items]
Total	866,895	662,959	646,730
Plant Nutrient | Specialty nutrients
Disaggregation of Revenue [Line Items]
Total	270,842	234,806	239,051
Plant Nutrient | Primary nutrients
Disaggregation of Revenue [Line Items]
Total	500,891	396,515	377,648
Plant Nutrient | Products and co-products
Disaggregation of Revenue [Line Items]
Total	0	0	0
Plant Nutrient | Propane and frac sand
Disaggregation of Revenue [Line Items]
Total	0	0	0
Plant Nutrient | Other
Disaggregation of Revenue [Line Items]
Total	$ 95,162	$ 31,638	$ 30,031