SEGMENT INFORMATION - Long-Lived Assets by Geographic Area (Details) - SBH and SBRH - USD ($) $ in Millions	Sep. 30, 2023	Sep. 30, 2022
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	$ 385.9	$ 346.3
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	321.4	279.7
Europe/MEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	53.7	52.8
Latin America
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	2.6	3.2
Asia-Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	$ 8.2	$ 10.6