Intangible Assets, net (Tables)

6 Months Ended

Mar. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Total intangible assets

	March 31, 2023						September 30, 2022
	Carrying Amount		Accumulated Amortization		Net Amount		Carrying Amount		Accumulated Amortization		Net Amount
Customer relationships	$	178.4	$	(89.8)	$	88.6	$	178.3	$	(84.9)	$	93.4
Trademarks and brands	194.0		(88.9)		105.1		195.1		(85.2)		109.9
Other intangible assets	3.1		(3.1)		—		3.1		(3.1)		—
Intangible assets, net	$	375.5	$	(181.8)	$	193.7	$	376.5	$	(173.2)	$	203.3