INCOME TAXES (Reconciliation of Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:
Balance at October 1	$ 5.8	$ 4.1	$ 4.6
Increases in tax position of prior years	0.8	0.4	2.1
Decreases in tax position of prior years	(0.1)	(1.3)	(0.9)
Settlements with taxing authorities	(0.3)	(1.2)	(0.1)
Lapse of applicable statute of limitations	(0.5)	(1.3)	(1.5)
Increase in positions due to acquisitions		5.5
Decrease in positions due to acquisitions	(0.6)
Foreign currency adjustments		(0.4)	(0.1)
Total change	(0.7)	1.7	(0.5)
Balance at September 30	$ 5.1	$ 5.8	$ 4.1