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Inventories and Significant Suppliers (Tables)
12 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Inventories, Net
Inventories were as follows:
December 31,
(In thousands)20202019
Raw materials$44,273 $56,352 
Components16,954 24,599 
Work in process6,211 1,526 
Finished goods52,992 62,658 
Inventories$120,430 $145,135