Goodwill and Intangible Assets (Tables)

6 Months Ended

Mar. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Changes in goodwill

The following table sets forth the change in the carrying amount of goodwill for the Company during the six months ended March 31, 2017 and 2016, respectively (in thousands):

Balance at September 30, 2015	$	496,415
Acquisition of RSG		617,634
Other acquisitions		47,608
Translation and other adjustments		(882)
Balance at March 31, 2016	$	1,160,775
Balance at September 30, 2016	$	1,197,565
Acquisitions		31,005
Translation and other adjustments		(511)
Balance at March 31, 2017	$	1,228,059

Intangibles and Other Assets, Included in Other Long-term Assets

Intangible assets consisted of the following (in thousands, except time period amounts):

 

							Weighted-
							Average
							Remaining
	March 31,		September 30,		March 31,		Life1
	2017		2016		2016		(Years)
Amortizable intangible assets:
Non-compete agreements	$	2,824	$	3,324	$	2,824		3.61
Customer relationships		582,028		566,964		541,161		17.91
Trademarks		6,670		5,400		4,600		6.60
Beneficial lease arrangements		960		960		610		10.40
Total amortizable intangible assets		592,482		576,648		549,195
Less:  Accumulated amortization		(226,025)		(185,674)		(149,663)
Total amortizable intangible assets, net	$	366,457	$	390,974	$	399,532
Indefinite lived trademarks		73,050		73,050		73,050
Total intangibles, net	$	439,507	$	464,024	$	472,582

¹ As of March 31, 2017

Estimated Future Annual Amortization

The following table presents the estimated annual amortization expense for these intangible assets (in thousands):

Year Ending September 30,
2017 (Apr - Sept)	$	40,750
2018		67,713
2019		55,112
2020		44,527
2021		35,378
Thereafter		122,977
	$	366,457