Intangible Assets, net (Tables)

3 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Total Intangible Assets


			December 31, 2020																		September 30, 2020
			Carrying Amount						Accumulated Amortization						Net Amount						Carrying Amount						Accumulated Amortization						Net Amount
Subject to amortization:
Customer relationships			$	2,315.1					$	(713.7)					$	1,601.4					$	2,304.8					$	(681.9)					$	1,622.9
Trademarks and brands			796.8						(277.8)						519.0						795.0						(266.9)						528.1
Other intangible assets			3.1						(3.1)						—						3.1						(3.1)						—
			3,115.0						(994.6)						2,120.4						3,102.9						(951.9)						2,151.0
Not subject to amortization:
Trademarks and brands			1,062.1						—						1,062.1						1,046.5						—						1,046.5
			$	4,177.1					$	(994.6)					$	3,182.5					$	4,149.4					$	(951.9)					$	3,197.5