v3.26.1
Business Segments - Schedule of Segment Reporting Information for Operating Results and Capital Expenditures (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Segment Reporting Information [Line Items]    
Net sales $ 180,048 $ 142,866
Less:    
Cost of materials and other 29,426 27,901
Direct operating expenses (exclusive of depreciation and amortization and turnaround expenses) 63,204 54,486
Depreciation and amortization 19,963 18,041
Selling, general and administrative expenses 9,031 7,889
Interest income (955) (1,220)
Net income 49,913 27,088
Nitrogen Fertilizer Segment    
Segment Reporting Information [Line Items]    
Net sales 180,048 142,866
Less:    
Feedstocks 17,932 16,529
Distribution costs 12,672 13,228
Other costs of materials (1,178) (1,856)
Cost of materials and other 29,426 27,901
Direct operating expenses (exclusive of depreciation and amortization and turnaround expenses) 62,233 54,108
Turnaround expenses 971 378
Depreciation and amortization 19,963 18,041
Selling, general and administrative expenses 9,031 7,889
Interest expense 8,803 8,946
Other segment items 663 (265)
Net income 49,913 27,088
Capital expenditures $ 13,751 $ 5,932