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Investments (Narrative) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2008
Investments, Other Investments [Line Items]        
Goodwill, Impairment Loss $ 0 $ 13,696 $ 0  
Gain (loss) on investment accounted for under the fair value method 14,160 14,720 9,642  
Proceeds from Sale of Investment Projects 47,062 0 0  
kaleo        
Investments, Other Investments [Line Items]        
Gain (loss) on investment accounted for under the fair value method [1] (12,780) 60,900 (28,482)  
Other Interest and Dividend Income   17,600    
Gain (Loss) on Investments 12,462 (60,900) 10,900  
Cost Method Investments, Original Cost       $ 7,500
Other Interest and Dividend Income   17,600    
Gain (Loss) on Investments $ 12,462 $ (60,900) $ 10,900  
[1] See Notes 1, 9, 15, 16 and 17 for more information on losses associated with plant shutdowns, asset impairments and restructurings, unusual items, gains or losses from sale of assets, gains or losses on an investment accounted for under the fair value method and other items.