Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Payables and Accruals [Abstract]
Liability for horse racing purses	$ 1,075	$ 1,139
Accrued payroll	1,386	1,897
Accrued redeemable points	188	167
Liability to NYSGC	618	360
Liability for local progressive jackpot	1,016	907
Accrued Development Projects costs	61,940	41,933
Accrued settlement liability	0	758
Accrued professional fees	496	308
Federal tax withholding payable	0	78
Accrued other	754	1,733
Total accrued expenses and other current liabilities	$ 5,533	$ 7,347