Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of federal income tax determined using statutory federal tax rate to our reported income tax provision
U.S. statutory tax	$ 12,381	$ 13,579
State and local income tax	1,716	(1,717)
Income attributable to REIT	(3,090)	(19,641)
Income attributable to Non-controlling interests	(67)	(462)
Nondeductible	(242)	(2,692)
Change in tax rate/deferred true up	(91)	381
NOL carryback rate impact	(2,702)
Current write-off	479
Total income tax provision (benefit)	$ 8,384	$ (10,552)	$ 1,386
Number of years net operating losses can be carried back under provisions of the CARES Act	5 years
Reconciliation of effective income tax rate determined using statutory federal tax rate to our reported income tax provision
U.S. statutory tax, Percent	21.00%	21.00%
State and local income tax (benefit), Percent	2.90%	(2.60%)
Income attributable to REIT, Percent	(5.30%)	(30.40%)
Income attributable to Non-controlling interests, Percent	(0.10%)	(0.70%)
Nondeductible, Percent	(0.40%)	(4.20%)
Change in tax rate, Percent	(0.20%)	0.60%
NOL carryback rate impact	(4.60%)
Current write-off	0.80%
Effective income tax (benefit), Percent, Total	14.10%	(16.30%)