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Inventories (Tables)
12 Months Ended
Dec. 31, 2025
Inventories  
Schedule of inventory

December 31, 

  ​ ​ ​

2025

  ​ ​ ​

2024

(in thousands)

  ​

  ​

Raw materials and supplies

$

109,259

$

97,857

Finished goods

 

9,745

 

9,771

Total inventory

$

119,004

$

107,628