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Inventories
3 Months Ended
Mar. 31, 2024
Inventory Disclosure [Abstract]  
Inventories
(4) Inventories

Components of inventories at March 31, 2024 and December 31, 2023 are summarized as follows:
(in thousands)March 31, 2024December 31, 2023
Raw materials$51,989 $59,658 
Work in process4,012 4,708 
Finished goods and parts89,627 87,822 
Total inventories$145,628 $152,188 

The inventory reserve was $18,271 and $16,156 as of March 31, 2024 and December 31, 2023, respectively.