Intangible Assets, Goodwill and Acquisitions (Tables)

9 Months Ended

Jun. 30, 2020

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets

Intangible assets as of June 30, 2020 and September 30, 2019 consisted of the following:

		June 30, 2020					September 30, 2019
	Estimated Useful Life	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
Customer relationships	6-21 yrs.	$	656.9	$	(433.4	)	$	639.6	$	(393.3	)
Trademarks	4-12 yrs.		4.8		(1.9	)		4.8		(1.7	)
Non-compete agreements	5 yrs.		2.7		(1.0	)		2.7		(0.6	)
Total intangible assets		$	664.4	$	(436.3	)	$	647.1	$	(395.6	)

Summary of Goodwill

The following is a summary of the goodwill activity for the periods ended September 30, 2019 and June 30, 2020:

	Maintenance Services		Development Services		Total
Balance, September 30, 2018	$	1,572.4	$	194.4	$	1,766.8
Acquisitions		43.6		—		43.6
Balance, September 30, 2019		1,616.0		194.4		1,810.4
Acquisitions		67.1		—		67.1
Balance, June 30, 2020	$	1,683.1	$	194.4	$	1,877.5