SEGMENT REPORTING (Schedule of Geographic Information) (Details) - USD ($) $ in Millions		12 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	[1]	$ 2,655.2	$ 1,988.2	$ 1,686.1
Long-lived assets	[2]	350.0	378.4	261.5
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	[1]	1,829.4	1,273.0	1,070.8
Long-lived assets	[2]	234.2	263.9	151.7
Non-US [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	[1]	825.8	715.2	615.3
Long-lived assets	[2]	$ 115.8	$ 114.5	$ 109.8

[1] Net revenue is attributed to geographic areas based on the location of the customer.

[2] Includes property and equipment leased to others.