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Business Acquisitions - Narrative (Details)
$ in Thousands, € in Millions, £ in Millions, kr in Millions, R in Millions
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Dec. 22, 2020
USD ($)
Nov. 30, 2021
USD ($)
Sep. 30, 2021
EUR (€)
Sep. 30, 2021
USD ($)
Feb. 28, 2021
EUR (€)
Feb. 28, 2021
USD ($)
May 31, 2020
DKK (kr)
May 31, 2020
USD ($)
Mar. 31, 2020
USD ($)
Mar. 31, 2020
ZAR (R)
Oct. 31, 2019
GBP (£)
Sep. 30, 2020
DKK (kr)
Mar. 31, 2020
GBP (£)
Sep. 30, 2021
EUR (€)
Sep. 30, 2021
USD ($)
Sep. 30, 2020
USD ($)
Dec. 31, 2020
USD ($)
Business Acquisition [Line Items]                                  
Payments related to acquisitions, net of cash acquired                             $ 31,975 $ 3,132  
Goodwill, Acquired During Period                             $ 7,093    
Tin Plating Solutions [Member]                                  
Business Acquisition [Line Items]                                  
Intangible assets           $ 19,600                      
Payments related to acquisitions, net of cash acquired           25,000                      
Goodwill, Acquired During Period           5,000                      
Business Combination, Measurement Period                           1 year 1 year    
Tin Plating Solutions [Member] | Customer lists and rights to sell [Member]                                  
Business Acquisition [Line Items]                                  
Intangible assets           $ 18,300                      
Intangible Assets, Amortizable Life         19 years 19 years                      
Tin Plating Solutions [Member] | Licensed Trademark [Member]                                  
Business Acquisition [Line Items]                                  
Intangible assets           $ 400                      
Intangible Assets, Amortizable Life         3 years 3 years                      
Tin Plating Solutions [Member] | Product technology [Member]                                  
Business Acquisition [Line Items]                                  
Intangible assets           $ 900                      
Intangible Assets, Amortizable Life         14 years 14 years                      
Grindaix GmbH [Member] | Global Specialty Businesses [Member]                                  
Business Acquisition [Line Items]                                  
Business Acquisition, Percentage of Voting Interests Acquired           38.00%                      
Cash Paid for Acquisitions     € 2.4 $ 2,900 € 1.4 $ 1,700                      
Coral Chemical Company (Coral) [Member]                                  
Business Acquisition [Line Items]                                  
Intangible assets $ 29,800                                
Payments related to acquisitions, net of cash acquired                                 $ 54,100
Cash Paid for Acquisitions 53,921                                
Total Assets Purchased 58,142                                
Business Combination, Measurement Period                           1 year 1 year    
Post Closing Adjustment $ (134)                                
Tel Nordic ApS[Member]                                  
Business Acquisition [Line Items]                                  
Intangible assets                               $ 2,400  
Intangible Assets, Amortizable Life             17 years 17 years                  
Payments related to acquisitions, net of cash acquired             kr 20.0 $ 2,900                  
Goodwill, Acquired During Period               500                  
Business Combination, Measurement Period                           1 year 1 year    
Post Closing Adjustment               $ 100       kr 0.4          
South Africa Equity Affiliate [Member]                                  
Business Acquisition [Line Items]                                  
Payments related to acquisitions, net of cash acquired                 $ 1,000 R 16.7              
Business Acquisition, Percentage of Voting Interests Acquired                 49.00% 49.00%     49.00%        
Adjustments To Additional Paid In Capital Other                 $ 700                
Norman Hay [Member]                                  
Business Acquisition [Line Items]                                  
Payments related to acquisitions, net of cash acquired | £                     £ 80.0            
Post Closing Adjustment | £                         £ 2.5        
2021 Acquisitions [Member] | Subsequent Event [Member]                                  
Business Acquisition [Line Items]                                  
Cash Paid for Acquisitions   $ 10,000                              
Earn-out provisions   $ 4,000                              
Chemical maskants product line [Member] | Global Specialty Businesses [Member]                                  
Business Acquisition [Line Items]                                  
Asset Acquisition, Consideration Transferred                           € 2.3 $ 2,800