Income Taxes - Deferred Taxes (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred Tax Assets, Net [Abstract]
Investments in real estate partnerships	$ 0	$ 361
Provision for impairment	3,785	5,827
Deferred interest expense	2,754	2,714
Capitalized costs under Section 263A	(729)	(1,145)
Operating Loss Carryforwards	373	0
Employee benefits	0	44
Other	2,297	3,059
Deferred tax assets	9,938	13,150
Valuation allowance	(8,300)	(12,507)
Deferred tax assets, net	1,638	643
Deferred Tax Liabilities, Net [Abstract]
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Deferred Rent	(528)	(643)
Fixed assets	(19,757)	0
Deferred Tax Liabilities, Other	(7)	0
Deferred tax liabilities	20,292	643
Net deferred tax liabilities	$ (18,654)	$ 0