Description of the Business and Summary of Significant Accounting Policies - Summary of Revenue by Type (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Segment Reporting Information [Line Items]
Revenue	$ 725.4	$ 682.0
Gaming
Segment Reporting Information [Line Items]
Revenue	440.0	421.7
Gaming | Gaming operations
Segment Reporting Information [Line Items]
Revenue	172.4	184.4
Gaming | Gaming machine sales
Segment Reporting Information [Line Items]
Revenue	156.2	134.5
Gaming | Gaming systems
Segment Reporting Information [Line Items]
Revenue	61.5	59.7
Gaming | Table products
Segment Reporting Information [Line Items]
Revenue	49.9	43.1
Lottery
Segment Reporting Information [Line Items]
Revenue	189.1	187.7
Lottery | Instant products
Segment Reporting Information [Line Items]
Revenue	141.7	137.3
Lottery | Lottery systems
Segment Reporting Information [Line Items]
Revenue	47.4	50.4
Interactive
Segment Reporting Information [Line Items]
Revenue	96.3	72.6
Interactive | Social Gaming - B2C
Segment Reporting Information [Line Items]
Revenue	80.2	60.2
Interactive | Other
Segment Reporting Information [Line Items]
Revenue	$ 16.1	$ 12.4