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Restructuring (Narrative) (Details)
$ in Millions
3 Months Ended 9 Months Ended
Dec. 31, 2022
employee
Dec. 31, 2019
employee
Sep. 30, 2023
USD ($)
Engineered Materials      
Restructuring Cost and Reserve [Line Items]      
Restructuring gain | $     $ 0.3
2022 Repositioning      
Restructuring Cost and Reserve [Line Items]      
Number of positions eliminated 160    
Restructuring and related cost, number of positions eliminated, period percent 2.00%    
2019 Repositioning      
Restructuring Cost and Reserve [Line Items]      
Number of positions eliminated   180  
Restructuring and related cost, number of positions eliminated, period percent   2.00%