Summary of Significant Accounting Policies - Real Estate Assets Useful Life (Details)	12 Months Ended
	Dec. 31, 2020
Buildings
Property, Plant and Equipment [Line Items]
Useful life	40 years
Building improvements | Minimum
Property, Plant and Equipment [Line Items]
Useful life	5 years
Building improvements | Maximum
Property, Plant and Equipment [Line Items]
Useful life	25 years
Land improvements | Minimum
Property, Plant and Equipment [Line Items]
Useful life	20 years
Land improvements | Maximum
Property, Plant and Equipment [Line Items]
Useful life	25 years
Furniture, fixtures, and equipment | Minimum
Property, Plant and Equipment [Line Items]
Useful life	3 years
Furniture, fixtures, and equipment | Maximum
Property, Plant and Equipment [Line Items]
Useful life	10 years