Other Intangible Assets (Details) (USD $)	3 Months Ended		9 Months Ended			3 Months Ended		9 Months Ended			9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Sep. 30, 2014 Hollywood Gaming at Dayton Raceway And Mahoning Valley Race Course	Jun. 30, 2014 Hollywood Gaming at Dayton Raceway And Mahoning Valley Race Course	Sep. 30, 2014 Hollywood Gaming at Dayton Raceway And Mahoning Valley Race Course	Sep. 30, 2014 Hollywood Gaming at Dayton Raceway	Sep. 30, 2014 Mahoning Valley Race Course	Sep. 30, 2014 Plainridge Park Casino Member	Sep. 30, 2014 Argosy Casino Sioux City gaming license	Dec. 31, 2013 Argosy Casino Sioux City gaming license	Sep. 30, 2014 Other Intangible Assets [Member]	Dec. 31, 2013 Other Intangible Assets [Member]
Intangible assets
Indefinite-life intangible assets, Gross Carrying Value	$ 474,436,000		$ 474,436,000		$ 349,224,000
Intangible assets, Gross Carrying Value	551,511,000		551,511,000		425,838,000
Finite-lived intangible assets, Gross Carrying Value												20,949,000	20,949,000	56,126,000	55,665,000
Finite-lived intangible assets, Accumulated Amortization	76,415,000		76,415,000		66,190,000							20,949,000	12,569,000	55,466,000	53,621,000
Finite-lived intangible assets, Net Book Value													8,380,000	660,000	2,044,000
Intangible Assets, Net (Excluding Goodwill), Total	475,096,000		475,096,000		359,648,000
Change in indefinite life intangible assets during the period			125,200,000
Gaming license fee						15,000,000	10,000,000	100,000,000			25,000,000
Intangible asset amortization expense	600,000	5,100,000	11,100,000	11,000,000
Percentage of gaming license fees paid						50.00%		50.00%
Gaming license payable due one year from commencement of operations						$ 50,000,000		$ 50,000,000	$ 25,000,000	$ 25,000,000
Gaming license fee terms								1 year