Description of the Business and Summary of Significant Accounting Policies - Deferred Installation Costs (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Deferred installation costs, net of accumulated depreciation	$ 29.6	$ 34.0
Lottery and other machinery and equipment
Property, Plant and Equipment [Line Items]
Deferred installation costs, net of accumulated depreciation	25.7	33.4
Gaming operations equipment
Property, Plant and Equipment [Line Items]
Deferred installation costs, net of accumulated depreciation	$ 3.9	$ 0.6

Deferred incremental direct costs incurred typically at a contract's inception so that the company may be in a position to fulfill all contractual obligations of an arrangement. The costs are directly related to specified activities under the arrangement and are deferred in order to match revenue that will be recognized after one year from the balance sheet date (or one operating cycle if longer). Excludes start-up costs (such as one-time activities related to opening a new facility, introducing a new product or service, establishing business with a new class of customers, preopening costs, and organization costs), which are expensed as incurred.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 13
-Section A
-Paragraph f
-Subparagraph Question 3, 4
-Subsection 3

Name:	us-gaap_DeferredSetUpCostsNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant