Acquistions (Details) In Thousands, unless otherwise specified	9 Months Ended			0 Months Ended
Sep. 30, 2012 USD ($)	Dec. 31, 2011 USD ($)	Jun. 07, 2012 Technology and Gaming GBP (£)	Jun. 08, 2012 Provoloto USD ($)	Sep. 30, 2012 Parspro USD ($)	Jul. 19, 2012 Parspro USD ($)
Business Acquisition [Line Items]
Equity interests acquired	$ 9,720		£ 3,450	$ 9,720	$ 9,900	$ 11,800
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			2,000
Goodwill	$ 797,624	$ 768,393	£ 2,200	$ 5,100

This element represents the acquisition-date fair value of the total consideration transferred which consists of the sum of the acquisition-date fair values of the assets transferred by the acquirer, the liabilities incurred by the acquirer to former owners of the acquiree, and the equity interests issued by the acquirer.

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Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Statement of Financial Accounting Standard (FAS)

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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