Revenue from Contracts with Customers (Disaggregation of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Disaggregation of Revenue [line Items]
Net sales	$ 137,327	$ 185,561	$ 273,911	$ 324,363
Long-term Contract with Customer
Disaggregation of Revenue [line Items]
Net sales	26,595	76,369	62,689	146,235
Short-term Contract with Customer
Disaggregation of Revenue [line Items]
Net sales	98,212	101,137	186,105	158,097
By-products and other
Disaggregation of Revenue [line Items]
Net sales	$ 12,520	$ 8,055	$ 25,117	$ 20,031