Summary of Significant Accounting Policies - Additional Information (Details)		12 Months Ended
	Feb. 25, 2016 USD ($)	Dec. 31, 2016 USD ($) restricted_cash_account	Dec. 31, 2015 USD ($) shares	Dec. 31, 2014 USD ($)	Feb. 17, 2016 shares
Restricted Cash and Cash Equivalents Items [Line Items]
Accrued rent		$ 8,000,000
Gaming Facility License Term		10 years
Number of restricted cash accounts | restricted_cash_account		4
Uninsured cash amounts		$ 400,000
Allowance for doubtful accounts		171,000	$ 171,000
Number of securities declined to exercise (in shares) | shares			204,706
Advertising expense		1,100,000	$ 1,075,000	$ 977,000
Total unrecognized compensation		$ 2,400,000
Vesting period for unrecognized compensation cost to be recognized (in years)		1 year 9 months
New York State Racing, Pari-Mutual Wagering And Breeding Law [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash and cash equivalents		$ 39,000	34,000
VGM New York Governing Law [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash and cash equivalents		354,000	629,000
Minimum reserve balance		0	400,000
Restricted Cash and Cash Equivalents, Amount Released		400,000
Monticello Harness Horsemens Association [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash and cash equivalents		$ 685,000	$ 278,000
Option Matching Rights [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Number of securities declined to exercise (in shares) | shares					204,706
Montreign [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Gaming Facility License Fee	$ 51,000,000