Business - Ownership Breakdown (Details)	Dec. 31, 2019 Property ApartmentUnit
Property/Unit schedule
Properties \| Property	309
Apartment Units \| ApartmentUnit	79,962
Wholly Owned Properties
Property/Unit schedule
Properties \| Property	291
Apartment Units \| ApartmentUnit	76,265
Master-Leased Property Consolidated
Property/Unit schedule
Properties \| Property	1
Apartment Units \| ApartmentUnit	162
Partially Owned Properties – Consolidated
Property/Unit schedule
Properties \| Property	17
Apartment Units \| ApartmentUnit	3,535

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Period Type:	duration