Fair Value Measurements - Derivatives (Details)	12 Months Ended					12 Months Ended		12 Months Ended
	Dec. 31, 2013 Interest rate swap USD ($)	Oct. 31, 2013 Interest rate swap USD ($)	Aug. 31, 2013 Interest rate swap USD ($)	Dec. 31, 2013 Interest rate swap Other assets USD ($)	Dec. 31, 2013 Interest rate swap Other long-term liabilities USD ($)	Dec. 31, 2013 Foreign currency forward contracts USD ($)	May 31, 2013 Foreign currency forward contracts EUR (€)	Dec. 31, 2013 Lotterie Nazionali S.r.l. USD ($)	Jan. 30, 2014 Subsequent event LIBOR swaption USD ($)
Derivatives Fair Value
Notional amounts of the forward contracts		$ 200,000,000	$ 500,000,000				€ 20,000,000		$ 150,000,000
Derivative, average fixed interest rate			2.151%
Gain (loss) recognized in other comprehensive income (loss)	(1,000,000)					(1,100,000)		(100,000)
Derivative asset, fair value				400,000
Derivative liability, fair value					1,900,000
Derivative, fixed interest rate									2.151%
Derivative, premium									$ 900,000
Weighted-average fixed rate of forward exchange contract							1.269%
Equity interest in derivative instrument held by Lotterie Nazionali								20.00%