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Inventories (Tables)
9 Months Ended
Sep. 30, 2022
Inventory Disclosure [Abstract]  
Components of Inventories
Components of inventories at September 30, 2022 and December 31, 2021 are summarized as follows:
(in thousands)September 30, 2022December 31, 2021
Raw materials$40,786 $23,530 
Work in process6,650 5,173 
Finished goods and parts78,526 64,184 
Inventories$125,962 $92,887