Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 749,437		$ 749,437		$ 742,554
Less: Accumulated depreciation	(62,274)		(62,274)		(44,875)
Property and equipment, net	687,163		687,163		697,679
Project Development Costs Incurred Transferred to Property and Equipment			6,900
Capitalized project development costs	9,300		9,300		5,700
Depreciation	9,000	$ 7,800	17,400	$ 12,461
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	770		770		770
Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,408		2,408		2,382
Building [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	625,072		625,072		622,043
Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	105,995		105,995		103,621
Furniture, fixtures and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	11,871		11,871		10,954
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 3,321		$ 3,321		$ 2,784