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Deferred Charges and Other Assets
 12 Months Ended
Dec. 31, 2025
Other Assets [Abstract]  
Deferred Charges and Other Assets Deferred Charges and Other Assets
Deferred charges and other assets, net consist of the following:
December 31,
20252024
Turnaround costs, net$213,953 $129,565 
Other7,248 8,063 
Deferred charges and other assets, net$221,201 $137,628 
Amortization expense on deferred charges and other assets of $40,960, $25,646 and $25,692 is included in cost of sales in the consolidated statements of operations for the years ended December 31, 2025, 2024 and 2023, respectively. Certain other assets are amortized over periods ranging from three to twenty years using the straight-line method.