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Acquisitions And New Ventures (Details) (USD $) | 6 Months Ended |  | 1 Months Ended | 6 Months Ended | 1 Months Ended
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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

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