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Acquisitions, Investments and Dispositions (Details Textual) (USD $) In Millions, unless otherwise specified		1 Months Ended
	May 31, 2012	Jan. 31, 2012 Chester Downs and Marina, LLC [Member]	Feb. 14, 2012 Chester Downs and Marina, LLC [Member]	Jun. 30, 2012 Windsor Casino Limited [Member]
Development and Acquisition Activity (Textual) [Abstract]
Percentage of minority ownership acquired		90.00%
Consideration for purchase of minority interest		$ 9.6
Total ownership interest property			99.50%	100.00%
Purchase of minority interest	$ 610.0			$ 8.7
Percentage of minority interest acquisition				0.50

Represents the purchase by the parent of an additional equity interest in a subsidiary during the period, thereby effecting a change in total (consolidated) equity attributable to the parent. The purchase of the additional equity interest represented by this element increases the parent's controlling interest in the subsidiary.

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