Income Taxes - Components of deferred tax assets and liabilities of TRSs (Details) - TRS - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Fixed and intangible assets	$ 1,488	$ 365
Net operating loss carryforwards	7,290	9,277
Prepaid and deferred income	1,115	866
Bad debt reserves	528	656
Deferred Tax Assets, Operating Lease	3,480
Accrued expenses and other	4,049	3,208
Stock compensation	2,636	2,083
Total deferred tax assets	20,586	16,455
Valuation allowance for deferred tax assets	(17,121)	(16,390)
Deferred tax assets, net of valuation allowance	3,465	65
Deferred tax liability:
Leases	(3,413)
Deferred financing costs	(52)	(65)
Net deferred tax liabilities	$ 0	$ 0