Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018	Sep. 30, 2018
Development Costs [Line Items]
Project Development Costs	$ 7,017	$ 4,922	$ 27,945
Liability for horseracing purses	1,614	868
Accrued payroll	5,642	8,142
Accrued interest expense	4,583	5,033
Accrued marketing	5,821	5,298
Deferred revenue - loyalty points	3,525	2,202
Liability to the NYSGC	1,966	2,816
Liability for local progressive jackpot	2,504	2,560
Accrued premium game leases	533	1,288
Accrued professional fees	2,277	2,337
Accrued utilities	300	561
Accrued other	5,118	2,573
Total accrued expenses and other current liabilities	33,883	33,678
Construction Manager Costs [Member]
Development Costs [Line Items]
Project Development Costs	$ 7,000	$ 4,900