Goodwill and Other Identifiable Intangible Assets, Net (Goodwill Rollforward) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Goodwill [Roll Forward]
Beginning balance	$ 100,183	$ 101,484
Acquisition of Bluenica Corporation	11,020	0
Foreign currency translation adjustment	(959)	(724)
Ending balance	$ 110,244	$ 100,760