v3.26.1
GOODWILL AND OTHER INTANGIBLE ASSETS - Intangible assets gross carrying amounts and accumulated amortization from continuing operations (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Sep. 30, 2025
Goodwill and Other Intangible Assets    
Goodwill $ 760,275 $ 761,931
Finite-lived, accumulated amortization 348,052 286,965
Patents    
Goodwill and Other Intangible Assets    
Finite-lived, Gross 7,918 7,607
Finite-lived, accumulated amortization 2,161 1,775
Finite-lived, Net 5,757 5,832
Capitalized software    
Goodwill and Other Intangible Assets    
Finite-lived, Gross 146,078 138,144
Finite-lived, accumulated amortization 108,658 100,818
Finite-lived, Net 37,420 37,326
Customer relationships    
Goodwill and Other Intangible Assets    
Finite-lived, Gross 619,890 625,535
Finite-lived, accumulated amortization 188,725 159,543
Finite-lived, Net 431,165 465,992
Other    
Goodwill and Other Intangible Assets    
Finite-lived, Gross 76,401 76,991
Finite-lived, accumulated amortization 48,506 24,829
Finite-lived, Net 27,895 52,162
Trade names    
Goodwill and Other Intangible Assets    
Indefinite-lived, Trade names $ 162,213 $ 162,661