Property and Equipment Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 42,517		$ 42,517		$ 40,847
Less—Accumulated depreciation	(15,131)		(15,131)		(14,432)
Property and equipment, net	27,386		27,386		26,415
Depreciation	389	$ 335	725	$ 671
Capitalized project development costs	339,700		339,700		202,400
Cash for Development Projects	327,477		327,477		26,384
Transferable Subscription Rights
Property, Plant and Equipment [Line Items]
Cash for Development Projects	327,500		327,500		26,400
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	1,759		1,759		1,758
Building [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	4,727		4,727		4,727
Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	29,807		29,807		28,088
Vehicles [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	321		321		307
Furniture, fixtures and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	5,073		5,073		4,278
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 60		$ 60		$ 919