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Segment and Geographic Area Information Depreciation and Amortization and Capital Expenditures by Reportable Segments (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Segment Reporting Information [Line Items]      
Depreciation and amortization $ 231,984 $ 213,484 $ 200,698
Capital expenditures 850,477 851,796 699,991
Reportable Segments      
Segment Reporting Information [Line Items]      
Depreciation and amortization 213,149 197,179 185,931
Reportable Segments | Lithium      
Segment Reporting Information [Line Items]      
Depreciation and amortization 112,854 99,424 95,193
Capital expenditures 720,563 665,585 500,849
Reportable Segments | Bromine Specialties      
Segment Reporting Information [Line Items]      
Depreciation and amortization 50,310 47,611 41,607
Capital expenditures 57,486 82,208 79,357
Reportable Segments | Catalysts      
Segment Reporting Information [Line Items]      
Depreciation and amortization 49,985 50,144 49,131
Capital expenditures 44,448 57,939 52,019
All Other      
Segment Reporting Information [Line Items]      
Depreciation and amortization 8,498 8,440 8,073
Capital expenditures 6,792 7,309 5,232
Corporate      
Segment Reporting Information [Line Items]      
Depreciation and amortization 10,337 7,865 6,694
Capital expenditures $ 21,188 $ 38,755 $ 62,534