Goodwill and Intangible Assets (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Goodwill and Intangible Assets
Aggregate amortization expense of definite lived intangible assets	$ 11,495	$ 11,449	$ 34,633	$ 34,123
Estimated amortization expense
2015	46,000		46,000
2016	46,000		46,000
2017	46,000		46,000
2018	46,000		46,000
2019	$ 46,000		$ 46,000