Acquisitions And New Ventures (Details) (USD $)	9 Months Ended				1 Months Ended	9 Months Ended	1 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Mar. 31, 2012 Entities	Oct. 23, 2012 Riverwalk Acquisition hotel_rooms sqft acre	Mar. 31, 2012 Ohio Joint Venture	Sep. 30, 2012 Ohio Joint Venture	Feb. 29, 2012 Bluff Media Acquisition
Business Acquisition [Line Items]
Purchase price of the entity to be acquired				$ 141,000,000
Square footage of Casino				25,000
Number of Hotel rooms				80
Square footage of Event Center				5,600
Acres				22
Ownership In Joint Venture					50.00%
Number of entities conducting harness racing			2
Aggregate purchase price					60,000,000
Portion of purchase price paid in cash					10,000,000
Portion of purchase price funded through promissory notes					50,000,000
Potential cash payment to sellers	(2,331,000)	0			10,000,000		2,300,000
Contributions by the joint venture to fund asset purchases						90,000,000
Initial Capital Contributions To Joint Ventures	6,525,000	0				6,500,000
Payments to Acquire Businesses, Net of Cash Acquired	$ 6,728,000	$ 0					$ 6,700,000