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Inventories
9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Inventories

5. Inventories. Inventories at September 30, 2021 and December 31, 2020 consisted of the following (in thousands):

    

September 30, 2021

    

December 31, 2020

Finished goods

$

115,396

$

110,933

Work-in-process

 

33,299

 

19,308

Raw materials

 

59,386

 

67,778

Total inventories

$

208,081

$

198,019