v3.26.1
GOODWILL AND OTHER INTANGIBLE ASSETS - Changes to Goodwill (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2026
USD ($)
Goodwill [Roll Forward]  
Goodwill, beginning balance $ 1,479,050
Increase from current period acquisition 76,823
Foreign currency translation (811)
Goodwill, ending balance 1,555,062
Environmental Services  
Goodwill [Roll Forward]  
Goodwill, beginning balance 1,297,478
Increase from current period acquisition 76,823
Foreign currency translation (576)
Goodwill, ending balance 1,373,725
Safety-Kleen Sustainability Solutions  
Goodwill [Roll Forward]  
Goodwill, beginning balance 181,572
Increase from current period acquisition 0
Foreign currency translation (235)
Goodwill, ending balance $ 181,337