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Restructuring (Tables)
12 Months Ended
Dec. 31, 2021
Restructuring and Related Activities [Abstract]  
Restructuring
These costs are presented in the Company's segment results as follows:
(Thousands)202120202019
Performance Alloys and Composites$ $8,763 $— 
Advanced Materials — — 
Precision Optics(438)2,052 328 
Other 422 457 
Total$(438)$11,237 $785