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Derivatives (Effects on Consolidated Statements of Operations and Other Comprehensive Income (Loss)) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Embedded Derivative Financial Instruments | Other expense, net      
Derivative Instruments, Gain (Loss) [Line Items]      
Unrealized losses on valuation of embedded derivatives $ 30,838 $ 857 $ 9,026
Designated as Hedging Instrument | Commodity Derivatives | Cost of goods and services sold | Onshore facilities and transportation product costs      
Derivative Instruments, Gain (Loss) [Line Items]      
Unrealized losses on valuation of embedded derivatives 7,634 14,454 786
Not Designated As Hedging Instrument | Commodity Derivatives | Cost of goods and services sold      
Derivative Instruments, Gain (Loss) [Line Items]      
Unrealized losses on valuation of embedded derivatives 16,525 19,929 8,576
Not Designated As Hedging Instrument | Commodity Derivatives | Cost of goods and services sold | Onshore facilities and transportation product costs, sodium minerals and sulfur services operating costs      
Derivative Instruments, Gain (Loss) [Line Items]      
Unrealized losses on valuation of embedded derivatives 8,891 5,475 7,790
Not Designated As Hedging Instrument | Swap | Cost of goods and services sold | Sodium minerals and sulfur services operating costs      
Derivative Instruments, Gain (Loss) [Line Items]      
Unrealized losses on valuation of embedded derivatives $ (1,174) $ (1,186) $ (1,941)