Revenue Recognition - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Rental revenues	$ 56,153	$ 54,110
Customer Concentration Risk \| Revenue \| Bloomberg
Disaggregation of Revenue [Line Items]
Rental revenues	$ 28,757	$ 27,115
Percentage rent contributed by tenant	51.00%	50.00%

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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+ Details