XML 163 R129.htm IDEA: XBRL DOCUMENT v2.4.1.9
Stock-Based and Other Incentive Compensation - Narrative (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Oct. 18, 2013
Oct. 31, 2013
2003 Incentive Compensation Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock authorized for awards under incentive compensation plan (in shares) 16,000,000.0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= sgms_TwoThousandThreeIncentiveCompensationPlanMember
    21,300,000.0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= sgms_TwoThousandThreeIncentiveCompensationPlanMember
 
Shares available for grant 8,900,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_PlanNameAxis
= sgms_TwoThousandThreeIncentiveCompensationPlanMember
       
Stock Options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award expiration period 10 years        
Offering period 6 years 6 years 6 years    
Stock Options | Minimum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period from first anniversary of grant (in years) 4 years        
Stock Options | Maximum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period from first anniversary of grant (in years) 5 years        
Restricted Stock Units | Minimum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period from first anniversary of grant (in years) 4 years        
Restricted Stock Units | Maximum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period from first anniversary of grant (in years) 5 years        
Employee stock purchase plan | Class A Common Stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock authorized for awards under incentive compensation plan (in shares) 1,000,000.0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
       
The maximum employee contribution as a percentage of employee compensation 15.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
       
Offering period 6 months        
Discount from market price on the last day of offering period (as a percent) 15.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
       
Shares issued 170,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
58,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
85,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
   
Issue price per share 10.01us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
11.62us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
7.32us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
   
Shares available for grant 128,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
       
WMS Acquisition          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based compensation, shares assumed in business acquisition         5,600,000sgms_SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofSharesAssumedInBusinessAcquisition
/ us-gaap_BusinessAcquisitionAxis
= sgms_WMSIndustriesInc.Member
Award conversion ratio 1.8sgms_SharebasedCompensationArrangementbySharebasedPaymentAwardAwardConversionRatio
/ us-gaap_BusinessAcquisitionAxis
= sgms_WMSIndustriesInc.Member
       
Percentage of Legacy WMS Plan shares included in combined plan pool 55.55%sgms_SharebasedCompensationArrangementbySharebasedPaymentAwardPercentageofSharesFromPriorPlanIncludedInCombinedPlan
/ us-gaap_BusinessAcquisitionAxis
= sgms_WMSIndustriesInc.Member
       
Bally Technologies Inc.          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares available for grant 3,400,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_BusinessAcquisitionAxis
= sgms_BallyTechnologiesInc.Member
       
Share-based compensation, shares assumed in business acquisition 4,800,000sgms_SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofSharesAssumedInBusinessAcquisition
/ us-gaap_BusinessAcquisitionAxis
= sgms_BallyTechnologiesInc.Member
       
Bally Technologies Inc. | Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based compensation, number of outstanding awards assumed in business acquisition 1,400,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
/ us-gaap_BusinessAcquisitionAxis
= sgms_BallyTechnologiesInc.Member