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Inventories
3 Months Ended
Mar. 31, 2022
Inventory Disclosure [Abstract]  
Inventories

4. Inventories. Inventories at March 31, 2022 and December 31, 2021 consisted of the following (in thousands):

    

March 31, 2022

    

December 31, 2021

Finished goods

$

130,500

$

132,403

Work-in-process

 

32,512

 

22,160

Raw materials

 

68,439

 

67,359

Total inventories

$

231,451

$

221,922