Acquisitions and Dispositions (Details)	9 Months Ended			1 Months Ended				0 Months Ended
	Sep. 30, 2012 USD ($)	Sep. 30, 2013 USD ($)	Dec. 31, 2012 USD ($)	Jul. 31, 2012 Parspro USD ($)	Jun. 30, 2012 Provoloto USD ($)	Jun. 30, 2012 Technology and Gaming GBP (£)	Oct. 18, 2013 Subsequent Event USD ($)	Oct. 18, 2013 Subsequent Event WMS Industries Inc. USD ($)	Oct. 18, 2013 Revolving Line of Credit Subsequent Event USD ($)	Oct. 18, 2013 Revolving Line of Credit Subsequent Event WMS Industries Inc. USD ($)	Oct. 18, 2013 Term Loan Facility Subsequent Event USD ($)	Oct. 18, 2013 Term Loan Facility Subsequent Event WMS Industries Inc. USD ($)
Business Acquisition [Line Items]
Par value of shares acquired								$ 0.50
Right, price per share								$ 26.00
Consideration for share-based compensation awards								$ 1,500,000,000
Debt principal							2,600,000,000	2,600,000,000			2,300,000,000	2,300,000,000
Maximum Borrowing Capacity									300,000,000	300,000,000
Equity interests acquired	9,720,000			11,800,000	9,720,000	3,450,000
Goodwill		800,372,000	801,373,000	9,900,000	5,100,000	2,200,000
Ownership percentage					100.00%
Non-cash estimated earn-out for sellers and contingent on future performance on equity interests acquired of SG Provoloto, S. de R.L. de C.V.	$ 2,000,000				$ 2,000,000