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Stock-Based and Other Incentive Compensation - Narrative (Details)
1 Months Ended 12 Months Ended
Apr. 27, 2015
$ / shares
shares
Jan. 01, 2015
performance_target
$ / shares
shares
Nov. 30, 2014
shares
Dec. 31, 2015
$ / shares
shares
Dec. 31, 2014
$ / shares
shares
Dec. 31, 2013
$ / shares
shares
Oct. 31, 2013
shares
Legacy Bally Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares assumed and adjusted to become awards (in shares)     1,400,000        
Shares assumed in business acquisition (in shares)     3,400,000        
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)       21,300,000      
Shares available for grant (in shares)       5,300,000      
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      
Restricted Stock Units              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period from first anniversary of grant (in years) 3 years 3 years          
Number of RSUs granted (in shares) 200,000 300,000   2,900,000      
Fair value of RSUs granted (in usd per share) | $ / shares $ 12.83 $ 13.26   $ 12.95 $ 13.86    
Number of performance targets | performance_target   3          
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      
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)       1,000,000.0      
The maximum employee contribution as a percentage of employee compensation       15.00%      
Offering period       6 months      
Discount from market price on the last day of offering period (as a percent)       15.00%      
Shares of commons stock issued (in shares)       128,000 170,000 58,000  
Issue price per share (in usd per share) | $ / shares       $ 13.21 $ 10.01 $ 11.62  
Bally Technologies Inc.              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award conversion ratio       1.75      
Percentage of Legacy WMS Plan shares included in combined plan pool       57.14%      
WMS Acquisition              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares assumed in business acquisition (in shares)             5,600,000
Award conversion ratio       1.8      
Percentage of Legacy WMS Plan shares included in combined plan pool       55.55%