Goodwill and Indefinite-lived Intangible Assets - Goodwill (Details) (USD $)	12 Months Ended											12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Belterra Park [Member]	Dec. 31, 2012 Belterra Park [Member]	Jan. 31, 2011 Belterra Park [Member]	Dec. 31, 2013 Boomtown New Orleans	Dec. 31, 2012 Boomtown New Orleans	Dec. 31, 2013 Other Business Entities [Member]	Dec. 31, 2012 Other Business Entities [Member]	Dec. 31, 2012 Heartland Poker Tour	Dec. 31, 2013 Gaming Licenses [Member]	Dec. 31, 2012 Gaming Licenses [Member]	Dec. 31, 2013 Trade Names [Member]	Dec. 31, 2012 Trade Names [Member]	Dec. 31, 2013 Racing license [Member]	Dec. 31, 2012 Indefinite-lived intangible assets, other [Member]	Dec. 31, 2013 Indefinite-lived Intangible Assets [Member]	Dec. 31, 2013 Customer Relationships [Member]	Dec. 31, 2012 Customer Relationships [Member]	Dec. 31, 2013 Favorable Leasehold Interests [Domain]
Goodwill [Line Items]
Goodwill, Acquired During Period	$ 864,100,000
Goodwill Acquired						35,800,000					2,600,000
Original Value		55,200,000		35,800,000	35,800,000		16,800,000	16,800,000	5,900,000	2,600,000	2,600,000
Accumulated impairment charges	0	0		0	0		0	0	0	0
Net book value	919,282,000	55,157,000		35,800,000	35,800,000		16,800,000	16,800,000	5,900,000	2,600,000
Indefinite-Lived Intangible Assets (Excluding Goodwill)	460,800,000	40,900,000										268,600,000	39,600,000	187,200,000	200,000	5,000,000	1,100,000
Impairment of indefinite-lived intangible	10,000,000	0	0									(31,100,000)	(21,100,000)	0	0	0	0	(31,100,000)
Intangible Assets, Gross (Excluding Goodwill)	429,700,000											237,500,000		187,200,000		5,000,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life																			6 years	10 years	32 years
Finite-Lived Intangible Assets, Gross	79,500,000	1,100,000																	75,100,000	1,100,000	4,400,000
Finite-Lived Intangible Assets, Accumulated Amortization	(9,100,000)	(100,000)																	(9,000,000)	(100,000)	(100,000)
Impairment of Intangible Assets, Finite-lived	0	0																	0	0	0
Finite-Lived Intangible Assets, Net	70,400,000	1,000,000																	66,100,000	1,000,000	4,300,000
Total Goodwill and Other Intangible Assets, Gross	1,459,600,000	97,200,000
Goodwill and Intangible Asset Impairment	(31,100,000)	(21,100,000)
Total Goodwill and Other Intangible Assets, Net	$ 1,419,400,000	$ 76,000,000