Other Assets (Schedule of Other Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019
Other Assets [Abstract]
Accounts receivable and other assets	$ 3,635	$ 3,212
Unamortized lease incentive payments	10,565	10,146
Regulatory escrows	8,208	8,208
Restricted cash	33,769	10,454	$ 10,377
Equity Method Investments	433	0
Other assets	$ 56,610	$ 32,020