Real Estate Intangibles - Summary of Real Estate Intangible Amortization (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Rental income related to (above)/below market tenant leases, net	$ 327	$ 291	$ 1,252	$ 210
Amortization related to in place lease intangibles and lease commissions	$ (28,948)	$ (48,414)	$ (98,241)	$ (101,837)