v3.26.1
Goodwill and Other Intangibles - Changes in Goodwill (Details)
$ in Thousands
 6 Months Ended
Jun. 30, 2026
USD ($)
Goodwill [Roll Forward]  
Balance at beginning of period $ 1,499,657
Foreign currency translation adjustments (16,985)
Balance at end of period 1,482,672
Energy Storage  
Goodwill [Roll Forward]  
Balance at beginning of period 1,466,959
Foreign currency translation adjustments (17,080)
Balance at end of period 1,449,879
Specialties  
Goodwill [Roll Forward]  
Balance at beginning of period 32,698
Foreign currency translation adjustments 95
Balance at end of period 32,793
Ketjen  
Goodwill [Roll Forward]  
Accumulated impairment loss $ 6,800