Subsequent Events (Details)		0 Months Ended
	May 02, 2012 CNY	Jan. 30, 2013 WMS Merger Agreement USD ($) jurisdiction	Feb. 19, 2013 WMS Merger Agreement USD ($)
Subsequent Event [Line Items]
Common stock acquired, par value		$ 0.50
Convertible shares		$ 26.00
Applicable payout percentage		100.00%
Gaming approvals, number of jurisdictions		50
Gaming approvals to cease after October 31, 2013, number of jurisdictions		30
Material gaming approvals needed prior to closing, number of jurisdictions		50
Gaming approvals condition to closing, number of jurisdictions		20
Consecutive business day financing marketing period		20 days
Termination fee		$ 100,000,000
Termination fee due to failure to attain approvals		80,000,000
Termination fee payable by acquiree		44,300,000
Senior secured first-lien term loan, principal amount			2,300,000,000
Revolving credit facility	60,000,000		$ 300,000,000