Summary of Significant Accounting Policies - Cash and Restricted Cash (Details) (USD $)	12 Months Ended
	Dec. 31, 2012 restricted_cash_account	Dec. 31, 2012 New York State Racing, Pari-Mutual Wagering And Breeding Law [Member]	Dec. 31, 2011 New York State Racing, Pari-Mutual Wagering And Breeding Law [Member]	Dec. 31, 2012 Monticello Harness Horsemens Association [Member]	Dec. 31, 2011 Monticello Harness Horsemens Association [Member]	Dec. 31, 2012 VGM New York Governing Law [Member]	Dec. 31, 2011 VGM New York Governing Law [Member]	Dec. 31, 2011 VGM New York Governing Law [Member] Minimum [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Uninsured cash amounts	$ 1,000,000
Number of restricted cash accounts	4
Restricted cash and cash equivalents		85,000	242,000	251,000	300,000	504,000	413,000
Minimum reserve balance								$ 400,000