Acquisitions And New Ventures (Details) (USD $)	12 Months Ended			6 Months Ended		0 Months Ended	12 Months Ended		1 Months Ended						6 Months Ended			12 Months Ended	0 Months Ended	12 Months Ended	6 Months Ended	0 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended	0 Months Ended		6 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended	6 Months Ended	0 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended	0 Months Ended	6 Months Ended			0 Months Ended	6 Months Ended						0 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Oxford Acquisition [Member]	Jul. 17, 2013 Oxford Acquisition [Member] sqft	Oct. 23, 2012 Riverwalk Acquisition [Member] sqft acre hotel_rooms	Dec. 31, 2013 Riverwalk Acquisition [Member]	Dec. 31, 2012 Riverwalk Acquisition [Member]	Feb. 29, 2012 Bluff Media Acquisition	Dec. 31, 2012 Bluff Media Acquisition	Dec. 31, 2013 Gaming Operations	Dec. 31, 2012 Gaming Operations	Dec. 31, 2011 Gaming Operations	Oct. 23, 2012 Gaming Operations Riverwalk Acquisition [Member]	Dec. 31, 2013 Furniture and fixtures Oxford Acquisition [Member]	Dec. 31, 2013 Buildings Oxford Acquisition [Member]	Dec. 31, 2013 Building Improvements [Member] Oxford Acquisition [Member]	Dec. 31, 2013 Minimum	Oct. 23, 2012 Minimum Computer Equipment and Software [Member] Riverwalk Acquisition [Member]	Dec. 31, 2013 Minimum Equipment	Dec. 31, 2013 Minimum Equipment Oxford Acquisition [Member]	Oct. 23, 2012 Minimum Equipment Riverwalk Acquisition [Member]	Dec. 31, 2013 Minimum Furniture and fixtures	Oct. 23, 2012 Minimum Furniture and fixtures Riverwalk Acquisition [Member]	Dec. 31, 2013 Minimum Buildings	Oct. 23, 2012 Minimum Buildings Riverwalk Acquisition [Member]	Oct. 23, 2012 Minimum Building Improvements [Member] Riverwalk Acquisition [Member]	Dec. 31, 2013 Minimum Computer Equipment [Member] Oxford Acquisition [Member]	Dec. 31, 2013 Maximum	Oct. 23, 2012 Maximum Computer Equipment and Software [Member] Riverwalk Acquisition [Member]	Dec. 31, 2013 Maximum Equipment	Dec. 31, 2013 Maximum Equipment Oxford Acquisition [Member]	Oct. 23, 2012 Maximum Equipment Riverwalk Acquisition [Member]	Dec. 31, 2013 Maximum Furniture and fixtures	Oct. 23, 2012 Maximum Furniture and fixtures Riverwalk Acquisition [Member]	Dec. 31, 2013 Maximum Buildings	Oct. 23, 2012 Maximum Building Improvements [Member] Riverwalk Acquisition [Member]	Dec. 31, 2013 Maximum Computer Equipment [Member] Oxford Acquisition [Member]	Dec. 31, 2013 Customer relationships Oxford Acquisition [Member]	Jul. 17, 2013 Customer relationships Oxford Acquisition [Member]	Oct. 23, 2012 Customer relationships Riverwalk Acquisition [Member]	Dec. 31, 2013 Other Intangible Assets [Member] Oxford Acquisition [Member]	Jul. 17, 2013 Other Intangible Assets [Member] Oxford Acquisition [Member]	Jul. 17, 2013 Slots gaming rights Oxford Acquisition [Member]	Oct. 23, 2012 Slots gaming rights Riverwalk Acquisition [Member]	Jul. 17, 2013 Trade Names [Member] Oxford Acquisition [Member]	Oct. 23, 2012 Trade Names [Member] Riverwalk Acquisition [Member]	Dec. 21, 2012 Miami Valley Gaming and Racing [Member]	Dec. 31, 2013 Miami Valley Gaming and Racing [Member] sqft mi	Dec. 31, 2012 Miami Valley Gaming and Racing [Member] mi	Dec. 31, 2013 Miami Valley Gaming and Racing [Member] Maximum terminal	Dec. 31, 2013 License Fee Payable [Member] Miami Valley Gaming and Racing [Member]	Dec. 21, 2012 Funded at Closing [Member] Miami Valley Gaming and Racing [Member]	Dec. 21, 2012 Notes Payable, Other Payables [Member] Miami Valley Gaming and Racing [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents					$ 13,700,000
Cash Acquired from Acquisition						9,400,000
Other intangible assets					64,693,000	43,100,000																																		1,700,000	10,300,000		2,093,000	58,500,000	25,300,000	2,400,000	7,500,000
Goodwill				50,200,000	50,202,000	32,768,000
Finite-Lived Intangible Asset, Useful Life																		1 year											30 years										6 years		6 years	20 years
Goodwill	300,616,000	250,414,000	213,712,000					32,800,000		3,900,000	117,659,000	67,457,000	34,689,000	32,800,000
Property, Plant and Equipment, Useful Life															6 years	40 years	14 years		3 years	2 years	2 years	4 years	2 years	4 years	10 years	40 years	8 years	2 years		5 years	10 years	9 years	6 years	10 years	6 years	40 years	22 years	5 years
Purchase price of the entity to be acquired					168,600,000	145,600,000
Square footage of Casino					25,000	25,000																																											186,000
Number of Lottery Terminals																																																			1,600
Number of Hotel rooms						80
Square footage of Event Center						5,600
Acres						22
Equity Method Investments, Facility Cost																																																	212,000,000			50,000,000
Equity Method Investment, Ownership Percentage	50.00%																																																50.00%
Potential cash payment to sellers									2,300,000
Equity Method Investments																																																60,000,000					10,000,000	50,000,000
Note Payable, Term																																																6 years
Equity Method Investments, Contingent Payable																																																10,000,000
Initial Capital Contributions To Joint Ventures	70,500,000	19,850,000	0																																														70,500,000	19,900,000
Anticipated Payments to Acquire Interest in Joint Venture	24,000,000
Payments to Acquire Businesses, Net of Cash Acquired	154,872,000	142,915,000	0						6,700,000
Business Acquisition, Contingent Consideration, Potential Cash Payment									2,500,000
Business Combination, Contingent Consideration Arrangements, Consideration Term									5 years
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual							53,600,000	10,300,000
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual							9,800,000	2,000,000
Race Track, Length																																																	0.625	0.625
Revenues	0	0	0	34,400,000
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	$ 85,506,000	$ 91,227,000	$ 95,084,000	$ 6,100,000