Revenue Recognition (Tables)

6 Months Ended

Mar. 31, 2020

Revenue from Contract with Customer [Abstract]

Contract with Customer, Asset and Liability [Table Text Block]

The following summarizes contract liability activity for fiscal 2019 and the six months ended March 31, 2020. The contract liability balance represents the transaction price allocated to the remaining performance obligations.

	Contract Liabilities
Balance as of October 1, 2018	$	47.8
Revenue deferred due to ASC 606 initial adoption	58.4
Deferred revenue acquired	10.7
New revenue deferrals	282.1
Revenue recognized upon satisfaction of performance obligations	(273.2)
Balance as of September 30, 2019	125.8
Deferred revenue acquired	2.7
New revenue deferrals	168.4
Revenue recognized upon satisfaction of performance obligations	(166.2)
Balance as of March 31, 2020	$	130.7