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Inventories (Tables)
9 Months Ended
Sep. 30, 2023
Inventory Disclosure [Abstract]  
Schedule of Components of Inventories
Components of inventories at September 30, 2023 and December 31, 2022 are summarized as follows:
(in thousands)September 30, 2023December 31, 2022
Raw materials$61,314 $59,907 
Work in process3,922 4,972 
Finished goods and parts87,769 72,953 
Total inventories$153,005 $137,832