Acquired Intangibles Assets and Liabilities - Amortization (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Acquired Intangible Assets and Liabilities [Abstract]
Amortization of acquired above and below-market leases, net	$ 90	$ 64
Estimated amortization of all other identified intangible assets
Net Carrying Value	$ 78,139		$ 81,679