Derivatives (Effects on Consolidated Statements of Operations and Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized losses on valuation of embedded derivatives			$ 18,584
Level 3 | Embedded Derivative Financial Instruments
Derivative Instruments, Gain (Loss) [Line Items]
Net loss for the period including earnings	$ 0	$ 0	(18,584)
Commodity Derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized losses on valuation of embedded derivatives	2,946	20,755	(7,416)
Swap | Soda and sulfur services operating costs
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized losses on valuation of embedded derivatives	7,172	(6,953)	(31,904)
Designated as Hedging Instrument | Commodity Derivatives | Onshore facilities and transportation product costs
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized losses on valuation of embedded derivatives	1,370	(617)	(1,403)
Not Designated As Hedging Instrument | Commodity Derivatives | Onshore facilities and transportation product costs, soda and sulfur services operating costs
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized losses on valuation of embedded derivatives	$ 1,576	$ 21,372	$ (6,013)