Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Payables and Accruals [Abstract]
Liability for horse racing purses	$ 939	$ 1,139
Accrued payroll	1,483	1,897
Accrued redeemable points	284	167
Liability to NYSGC	1,270	360
Liability for local progressive jackpot	1,035	907
Accrued Development Projects costs	75,291	41,933
Accrued settlement liability	0	758
Accrued professional fees	901	308
Federal tax withholding payable	0	78
Accrued other	1,101	1,733
Total accrued expenses and other current liabilities	$ 7,013	$ 7,347