v3.26.1
Segment Information - Depreciation and Amortization and Capital Expenditures by Reportable Segments (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting [Line Items]        
Net sales $ 1,743,313 $ 1,329,992 $ 3,172,044 $ 2,406,873
Total segment depreciation and amortization 155,801 168,731 313,606 330,485
Total equity in net income of unconsolidated investments (net of tax) 151,564 78,258 247,857 142,544
Total capital expenditures $ 71,731 119,628 $ 170,407 302,252
Ketjen Joint Venture        
Segment Reporting [Line Items]        
Ownership percentage 49.00%   49.00%  
Reportable Segments        
Segment Reporting [Line Items]        
Net sales $ 1,700,168 1,069,216 $ 2,949,746 1,914,795
Total segment depreciation and amortization 151,058 152,843 304,099 298,924
Total equity in net income of unconsolidated investments (net of tax) 156,250 53,851 239,217 104,696
Total capital expenditures 68,020 82,247 142,559 238,915
Reportable Segments | Energy Storage        
Segment Reporting [Line Items]        
Net sales 1,276,684 717,656 2,167,849 1,242,221
Total segment depreciation and amortization 122,084 127,175 246,434 247,523
Total equity in net income of unconsolidated investments (net of tax) 156,250 53,851 239,217 104,696
Total capital expenditures 45,954 58,513 100,075 152,956
Reportable Segments | Specialties        
Segment Reporting [Line Items]        
Net sales 423,484 351,560 781,897 672,574
Total segment depreciation and amortization 28,974 25,668 57,665 51,401
Total capital expenditures 22,066 23,734 42,484 85,959
Corporate and all other        
Segment Reporting [Line Items]        
Net sales 43,145 260,776 222,298 492,078
Total segment depreciation and amortization 4,743 15,888 9,507 31,561
Total equity in net income of unconsolidated investments (net of tax) (4,686) 24,407 8,640 37,848
Total capital expenditures $ 3,711 $ 37,381 $ 27,848 $ 63,337