Intangible Assets, Goodwill and Acquisitions (Tables)

3 Months Ended

Dec. 31, 2018

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets

Intangible assets as of December 31, 2018 and September 30, 2018 consisted of the following:

		December 31, 2018					September 30, 2018
	Estimated Useful Life	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
Customer relationships	6-21 yrs.	$	622,670	$	(352,743	)	$	622,710	$	(337,800	)
Trademarks	12 yrs.		4,800		(1,499	)		230,900		(227,520	)
Non-compete agreements	5 yrs.		2,320		(263	)		2,320		(155	)
Total intangible assets		$	629,790	$	(354,505	)	$	855,930	$	(565,475	)

Schedule of Changes in Carrying Amount of Goodwill

The following is a summary of the activity for the periods ended September 30, 2018 and December 31, 2018 for goodwill:

	Maintenance Services		Development Services		Total
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
Acquisitions		2,451		—		2,451
Balance, December 31, 2018	$	1,574,814	$	194,398	$	1,769,212