Other Intangible Assets Other Intangible Assets (Details) (USD $)	12 Months Ended					12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Subsequent Event	Jul. 17, 2013 Oxford Acquisition [Member]	Dec. 31, 2012 Riverwalk Acquisition [Member]	Dec. 31, 2012 Bluff Media Acquisition	Dec. 31, 2013 Calder	Dec. 31, 2012 Calder	Dec. 31, 2013 Slots gaming rights	Dec. 31, 2012 Slots gaming rights	Dec. 31, 2013 Trademarks	Dec. 31, 2012 Trademarks	Dec. 31, 2013 Illinois Horseracing Equity Trust	Dec. 31, 2012 Illinois Horseracing Equity Trust	Dec. 31, 2013 Other	Dec. 31, 2012 Other	Dec. 31, 2013 Favorable contracts	Dec. 31, 2012 Favorable contracts	Dec. 31, 2013 Customer relationships	Dec. 31, 2012 Customer relationships	Dec. 31, 2013 Slot gaming license	Dec. 31, 2012 Slot gaming license	Dec. 31, 2013 Table Games License [Member]	Dec. 31, 2013 Other	Dec. 31, 2012 Other	Dec. 31, 2013 Oxford Acquisition [Member] Table Games License [Member]	Dec. 31, 2013 Harlows Casino [Member] Customer relationships	Dec. 31, 2013 Harlows Casino [Member] Other
Finite-Lived Intangible Assets, Net [Abstract]
Gross carrying amount	$ 76,002,000	$ 75,229,000																$ 11,000,000	$ 11,000,000	$ 56,540,000	$ 57,900,000	$ 2,250,000	$ 2,250,000	$ 2,493,000	$ 3,719,000	$ 4,079,000	$ 400,000	$ 2,800,000	$ 400,000
Accumulated amortization	(36,196,000)	(29,599,000)																(4,260,000)	(3,613,000)	(30,464,000)	(24,594,000)	(1,125,000)	(1,125,000)	(50,000)	(297,000)	(267,000)
Net carrying amount	39,806,000	45,630,000																6,740,000	7,387,000	26,076,000	33,306,000	1,125,000	1,125,000	2,443,000	3,422,000	3,812,000
Indefinite-Lived Intangible Assets (Excluding Goodwill) [Abstract]
Net carrying amount	198,149,000	143,141,000								128,890,000	70,390,000	25,729,000	23,397,000	3,307,000	3,307,000	417,000	417,000
Amortization expense	12,200,000	11,200,000	11,900,000
Annual license fees paid				2,300,000				2,300,000	2,300,000
Acquired definite-lived intangible assets						10,300,000	300,000
Acquired indefinite-lived intangible assets						32,800,000	4,800,000
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2013	9,127,000
2014	8,234,000
2015	7,633,000
2016	7,110,000
2017	7,110,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles					3,800,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets					$ 60,900,000