Lease Intangibles - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Below market rents, acquired	$ 1.4	$ 10.4
Below market rents acquired, weighted average useful life	2 years 7 months 6 days	21 years 8 months 12 days
In-place lease intangible assets
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 1.5	$ 36.1
Acquired intangible assets, weighted average useful life	3 years 4 months 24 days	7 years 10 months 24 days
Above-market rent
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired		$ 0.6
Acquired intangible assets, weighted average useful life		6 years 8 months 12 days