Business and Geographic Segments - Revenue and Long-Lived Assets by Geographic Segment (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Geographic Segments
Revenue	$ 401.9	[1]	$ 234.4	[2]	$ 235.0	[3]	$ 219.6	[4]	$ 246.8	[5]	$ 224.6	[6]	$ 226.0	[7]	$ 231.2	[8]	$ 1,090.9	[9]	$ 928.6	[9]	$ 865.9	[9]	$ 870.5
Long-lived assets (excluding identifiable intangibles):	772.6	[10]							376.9	[10]							772.6	[10]	376.9	[10]
United States
Geographic Segments
Revenue																	559.8		445.2		425.7
Long-lived assets (excluding identifiable intangibles):	579.8								192.7								579.8		192.7
International
Geographic Segments
Revenue																	531.1		483.4		440.2
Long-lived assets (excluding identifiable intangibles):	192.8								184.2								192.8		184.2
North America, other than United States
Geographic Segments
Revenue																	74.2		66.1		58.1
Long-lived assets (excluding identifiable intangibles):	47.5								46.5								47.5		46.5
United Kingdom
Geographic Segments
Revenue																	157.5		163.7		123.5
Long-lived assets (excluding identifiable intangibles):	85.2								65.8								85.2		65.8
Europe
Geographic Segments
Revenue																	213.2		187.6	[11]	183.0	[11]
Long-lived assets (excluding identifiable intangibles):	19.6	[11]							25.1	[11]							19.6	[11]	25.1	[11]
Other
Geographic Segments
Revenue																	86.2		66.0		75.6
Long-lived assets (excluding identifiable intangibles):	40.5								46.8								40.5		46.8
International Customers [Member]
Geographic Segments
Revenue																	$ 18.5		$ 16.6		$ 26.0

[1] Reflects operating results of WMS from the acquisition date to December 31, 2013 including $144.7 million of revenue, $63.8 million of costs of services and product sales, $47.5 million of SG&A, $19.1 million of R&D, $5.3 million of employee termination and restructuring costs, and $40.1 million of depreciation and amortization. Results for the three months ended December 31, 2013 also included an additional $17.1 million of employee termination and restructuring costs which are described in Note 4 (Restructuring Plans). Depreciation and amortization also includes $4.6 million of accelerated depreciation and amortization related to obsolete gaming machine software and $3.1 million of accelerated depreciation and amortization related to the exit from our instant lottery game operations in Mexico. SG&A also includes $11.1 million acquisition-related fees and expenses.

[2] Includes $2.8 million of acquisition-related fees and expenses.

[3] Includes $2.7 million of acquisition-related fees and expenses, and $8.7 million of depreciation related to a write-down of used gaming machines and accelerated depreciation related to our change in the estimated useful lives of our gaming machine fixed assets.

[4] Includes $4.4 million of acquisition-related fees and expenses.

[5] Includes $0.8 million employee termination and restructuring costs due to our exit from the Barcrest analog AWP business and the reorganization of our pub business and the reorganization of our Australia printing operations. Includes $24.0 million of accelerated depreciation related to a write-down of gaming machines and software in our gaming business and certain development costs in our licensed properties business and $5.8 million of impairment charges related to underperforming Lottery Systems contracts.

[6] Includes $1.8 million employee termination and restructuring costs due to our exit from the Barcrest analog AWP business and the reorganization of our pub business and the reorganization of our Australia printing operations. Includes $6.7 million of accelerated depreciation related to a write-down of gaming machines, $1.9 million of accelerated depreciation of equipment related to reorganization of our Australia printing operations and $1.6 million of incremental depreciation from the acquisition of Barcrest. Includes a loss on early extinguishment of debt due to the redemption of the 2016 Notes resulting in a charge of $15.5 million comprised primarily of the redemption premium and the write-off of previously deferred financing costs.

[7] Includes $6.0 million employee termination and restructuring costs due to our exit from the Barcrest analog AWP business and the reorganization of our pub business and the reorganization of our Australia printing operations. Includes $5.8 million of accelerated depreciation related to a write-down of certain development costs and obsolete gaming machines, $2.4 million of incremental depreciation from the acquisition of Barcrest and $1.5 million of accelerated depreciation of equipment related to the reorganization of our Australia printing operations.

[8] Includes $2.9 million employee termination and restructuring costs due to our exit from the Barcrest analog AWP business and the reorganization of our pub business.

[9] Total revenue from international customers for the years ended December 31, 2013, 2012 and 2011 was $531.1 million, $483.4 million and $440.2 million, respectively.

[10] Total long-lived assets held outside the United States as of December 31, 2013 and 2012 was $192.8 million and $184.2 million, respectively.

[11] _