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INVENTORIES (Tables)
3 Months Ended
Mar. 31, 2022
INVENTORIES  
Schedule of inventories

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March 31, 

    

December 31, 

    

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2022

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2021

 

(in thousands)

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Raw materials and supplies

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$

33,255

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$

42,231

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Work in process

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18,621

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14,390

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Finished goods

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26,303

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16,640

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Total inventories

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$

78,179

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$

73,261

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