Acquired Properties - Summary of Retail Properties Acquired (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) ft²	Mar. 31, 2019 USD ($) ft²
Real Estate Properties [Line Items]
Capitalized acquisition costs	$ 63	$ 608
Retail
Real Estate Properties [Line Items]
Gross Acquisition Price	$ 33,204	$ 86,750
Square Feet | ft²	173,100	168,000
Trowbridge Crossing | Retail
Real Estate Properties [Line Items]
Gross Acquisition Price	$ 10,950
Square Feet | ft²	62,600
Antoine Town Center | Retail
Real Estate Properties [Line Items]
Gross Acquisition Price	$ 22,254
Square Feet | ft²	110,500
Commons at University Place | Retail
Real Estate Properties [Line Items]
Gross Acquisition Price		$ 23,250
Square Feet | ft²		92,000
Lakeside Winter Park and Lakeside Crossings | Retail
Real Estate Properties [Line Items]
Gross Acquisition Price		$ 63,500
Square Feet | ft²		76,000