Litigation - Additional Information (Details) COP in Billions	1 Months Ended		6 Months Ended
	May 31, 2013 USD ($)	May 31, 2013 COP	Jun. 30, 2016 USD ($)	Dec. 31, 2015 USD ($)
Loss Contingencies [Line Items]
Loss contingency accrual			$ 9,000,000	$ 16,400,000
Loss contingency liability, estimated range			13,200,000
Ecosalud
Loss Contingencies [Line Items]
Litigation settlement, amount	$ 30,800,000	COP 90
Statutory interest rate	12.00%	12.00%
Oregon State Lottery Matter
Loss Contingencies [Line Items]
Minimum monetary damages sought by plaintiffs			134,000,000.0
Bally Technologies Inc.
Loss Contingencies [Line Items]
Minimum comprehensive damages sought by plaintiffs			100,000,000.0
Guarantee of business revenue
Loss Contingencies [Line Items]
Loss contingency possible amount of damages			5,000,000.0
Performance guarantee
Loss Contingencies [Line Items]
Loss contingency deposit of surety bond			$ 4,000,000.0