Intangible Assets, Goodwill and Acquisitions (Tables)

12 Months Ended

Sep. 30, 2018

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets

Intangible assets as of September 30, 2018 and September 30, 2017 consist of thefollowing:

		September 30, 2018					September 30, 2017
	Useful Life	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
Customer relationships	6-21 yrs.	$	622,710	$	(337,800	)	$	600,515	$	(275,993	)
Trademarks	4-12 yrs.		230,900		(227,520	)		230,900		(184,151	)
Non-compete agreements	5 yrs.		2,320		(155	)		—		—
Total intangible assets		$	855,930	$	(565,475	)	$	831,415	$	(460,144	)

Schedule of Changes in Carrying Amount of Goodwill

The following table shows changes in the carrying amount of goodwill from January 1, 2017 to September 30, 2018 by reportable segment:

	Maintenance Services		Development Services		Total
Balance, January 1, 2017	$	1,486,640	$	180,474	$	1,667,114
Acquisitions		36,659		—		36,659
Balance, September 30, 2017		1,523,299		180,474		1,703,773
Acquisitions		49,064		13,924		62,988
Balance, September 30, 2018	$	1,572,363	$	194,398	$	1,766,761

Schedule of Future Amortization Expense

Amortization expense is anticipated to be as follows in future years:

Year Ended September 30,
2019	$	55,580
2020		47,551
2021		39,723
2022		32,691
2023		26,505
2024 and thereafter		87,405
	$	289,455