Acquisitions And New Ventures (Details) (USD $)	6 Months Ended			1 Months Ended	6 Months Ended	1 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Mar. 31, 2012 Entities	Mar. 31, 2012 Ohio Joint Venture	Jun. 30, 2012 Ohio Joint Venture	Feb. 29, 2012 Bluff Media Acquisition
Business Acquisition [Line Items]
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	5,400,000	0			5,400,000
Payments to Acquire Businesses, Net of Cash Acquired	$ 6,728,000	$ 0				$ 6,700,000