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Commitments and Contingencies (Tables)
 6 Months Ended
Jun. 30, 2023
Commitments and Contingencies Disclosure [Abstract]  
Schedule of aggregate minimum commitments
Aggregate minimum commitments under long-term raw material supply contracts for the next five years as of June 30, 2023 are listed below:
(Thousands of Dollars)
2023$21,439 
202418,464 
20253,960 
2026— 
2027— 
$43,863