Goodwill and Intangible Assets (Details 1) - USD ($) $ in Thousands		9 Months Ended
		Jun. 30, 2016	Sep. 30, 2015	Jun. 30, 2015
Amortizable intangible assets [Line Items]
Total amortizable intangible assets		$ 571,322	$ 196,386	$ 196,904
Less: Accumulated amortization		(167,122)	(119,081)	(115,235)
Total amortizable intangible assets, net		404,200	77,305	81,669
Deferred Finance Costs, Net [Abstract]
Indefinite lived trademarks		73,050	9,750	9,750
Total other assets, net		477,250	87,055	91,419
Noncompete Agreements [Member]
Amortizable intangible assets [Line Items]
Total amortizable intangible assets		$ 2,824	2,824	2,824
Finite-Lived Intangible Asset, Useful Life	[1]	4 years 4 days
Customer Relationships [Member]
Amortizable intangible assets [Line Items]
Total amortizable intangible assets		$ 562,888	191,852	192,370
Finite-Lived Intangible Asset, Useful Life	[1]	18 years 6 months 29 days
Trademarks [Member]
Amortizable intangible assets [Line Items]
Total amortizable intangible assets		$ 5,000	1,100	1,100
Finite-Lived Intangible Asset, Useful Life	[1]	3 years 6 months 14 days
Beneficial Lease Arrangements [Member]
Amortizable intangible assets [Line Items]
Total amortizable intangible assets		$ 610	$ 610	$ 610

[1] As of June 30, 2016