Litigation - Additional Information (Details) COP in Billions	1 Months Ended		3 Months Ended
	May. 31, 2013 USD ($)	May. 31, 2013 COP	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Loss Contingencies [Line Items]
Loss contingency accrual			$ 13,100,000	$ 16,400,000
Legal contingencies, liability, estimated range			13,400,000
Ecosalud
Loss Contingencies [Line Items]
Litigation settlement, amount	$ 29,100,000	COP 90
Effective income tax rate reconciliation, at federal statutory income tax rate, percent	12.00%	12.00%
Oregon State Lottery Matter
Loss Contingencies [Line Items]
Loss contingency, damages claimed, value, in excess of			134,000,000.0
Bally Technologies Inc.
Loss Contingencies [Line Items]
Loss contingency, damages sought, value			100,000,000
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