Intangible Assets, net (Tables)

9 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Total intangible assets

	June 30, 2021						September 30, 2020
	Carrying Amount		Accumulated Amortization		Net Amount		Carrying Amount		Accumulated Amortization		Net Amount
Customer relationships	$	178.6	$	(72.9)	$	105.7	$	209.4	$	(76.9)	$	132.5
Trademarks and brands	195.1		(72.8)		122.3		213.4		(71.6)		141.8
Other intangible assets	3.1		(3.1)		—		3.1		(3.1)		—
Intangible assets, net	$	376.8	$	(148.8)	$	228.0	$	425.9	$	(151.6)	$	274.3