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Revenue From Contracts With Customers (Disaggregation of Revenue, By Application) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Sales by Application        
Total $ 349,006 $ 379,150 $ 1,096,008 $ 1,096,393
Materials processing        
Sales by Application        
Total 312,546 346,045 994,866 1,008,939
Other applications        
Sales by Application        
Total $ 36,460 $ 33,105 $ 101,142 $ 87,454