Organization, Basis of Presentation and Significant Accounting Policies (Details) ft² in Thousands, $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2020 USD ($) state community home residential_condominium ft²	Jun. 30, 2020 USD ($) state community home residential_condominium ft²
Real Estate Properties [Line Items]
Accounts Receivable, Credit Loss Expense (Reversal) | $	$ 20,099	$ 24,279
Number of operating apartment communities | community	276	276
Number of apartment homes included in operating apartment communities owned	80,182	80,182
Number of states where operating apartment communities owned are located | state	11	11
Number of owned communities under construction | community	19	19
Expected number of apartment homes under construction	6,198	6,198
Number of Residential Condominium Units Sold | residential_condominium	16	52
Communities under development rights | community	28	28
Estimated number of apartment homes in communities to be developed	9,786	9,786
The Park Loggia [Member]
Real Estate Properties [Line Items]
Number Of Residential Condominium Units	172	172
Retail Square Feet | ft²	67	67
Percent of Retail Square Feet Leased	64.00%	64.00%