Quarterly report [Sections 13 or 15(d)]

Revenue from Contracts with Customers (Details)

v3.26.1
Revenue from Contracts with Customers (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disaggregated Revenue        
Total sales $ 249,962 $ 176,065 $ 464,914 $ 319,175
Regenerated sulfuric acid and treatment services        
Disaggregated Revenue        
Total sales 103,081 92,788 196,880 172,035
Virgin sulfuric acid        
Disaggregated Revenue        
Total sales 137,527 74,331 250,487 130,211
Catalyst activation and sulfur dioxide & derivatives        
Disaggregated Revenue        
Total sales $ 9,354 $ 8,946 $ 17,547 $ 16,929