Intangibles - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020
Intangibles
Weighted average amortization period for lease intangibles		27 years
Weighted average amortization period for lease intangible liability		41 years
In-place lease intangibles
Intangibles
Impairment of intangible assets finite lived gross	$ 1.7	$ 1.7
Impairment of intangible assets finite lived accumulated amortization	0.9	0.9
Impairment of intangible assets, finite-lived	$ (0.8)	$ (0.8)