Property and Equipment, Net (Details) - USD ($) $ in Millions	Jun. 30, 2019	Sep. 30, 2018
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 127.8	$ 133.3
Less: accumulated depreciation and amortization	(96.2)	(87.6)
Property, plant and equipment, net	31.6	45.7
Short-Term Leasehold Property [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	0.3	0.4
Video Lottery Terminal [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	116.7	121.7
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	0.3
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	8.6	8.7
Plant and Machinery [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1.9	$ 2.5