Intangible Assets, net (Tables)

3 Months Ended

Dec. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Total intangible assets

	December 31, 2023						September 30, 2023
	Carrying Amount		Accumulated Amortization		Net Amount		Carrying Amount		Accumulated Amortization		Net Amount
Customer relationships	$	178.4	$	(105.8)	$	72.6	$	178.4	$	(97.2)	$	81.2
Trademarks and brands	194.0		(112.0)		82.0		194.0		(98.4)		95.6
Other intangible assets	3.1		(3.1)		—		3.1		(3.1)		—
Intangible assets, net	$	375.5	$	(220.9)	$	154.6	$	375.5	$	(198.7)	$	176.8