Commitments to Acquire/Dispose of Real Estate - Agreement to Acquire (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($) Property ApartmentUnit
Property/Unit schedule
Properties | Property	1
Apartment Units | ApartmentUnit	398
Purchase Price | $	$ 189,000
Rental Properties Acquire [Member] | Consolidated [Member]
Property/Unit schedule
Properties | Property	1
Apartment Units | ApartmentUnit	398
Purchase Price | $	$ 189,000