Description of Business and Basis of Presentation (Tables)

12 Months Ended

Sep. 30, 2016

Description Of Business And Basis Of Presentation [Abstract]

Reclassifications

The following revenue and costs have been reclassified in the accompanying Consolidated Statements of Operations for the year ended September 30, 2015 and 2014 to conform to the current period presentation.

	Year Ended September 30,
	2015		2014
Reclassifications within revenue	(in millions)
From L&S to Perpetual License	$	282.8	$	362.6
From L&S to Subscription	65.2		27.1
Reclassifications within cost of revenue
From L&S to Software	$	53.2	$	45.0
From Support to Software	82.8		84.7
Reclassifications within operating expenses
From General and Administrative to Selling and Marketing	$	8.0	$	10.0