Deferred Leasing Costs and Other Intangibles - Summary of the Amortization of Deferred Leasing Costs and Intangibles (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Finite-Lived Intangible Assets [Line Items]
Below-market lease values	$ 822	$ 1,857	$ 2,058	$ 3,482
Net increase (decrease) to property operating income	160	981	565	1,593
Deferred leasing costs	1,593	2,408	3,241	4,547
Amortization expense	4,628	8,508	10,602	16,240
Above-market lease values
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	(662)	(876)	(1,493)	(1,889)
In-place lease values
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	2,748	5,980	7,098	11,454
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 287	$ 120	$ 263	$ 239