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Organization, Basis of Presentation and Significant Accounting Policies (Details) | Sep. 30, 2018 state community home
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Accounting Policies [Abstract] |
Number of operating apartment communities | community | 271
Number of apartment homes included in operating apartment communities owned | home | 78,383
Number of states where operating apartment communities owned are located | state | 12
Number of Communities with Apartments under Reconstruction | community | 15
Number of Apartment Homes under Reconstruction | home | 6,242
Number of owned communities under construction | community | 19
Expected number of apartment homes under construction | home | 6,107
Communities under development rights | community | 25
Estimated number of apartment homes in communities to be developed | home | 8,600

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- Definition Estimated number of apartment homes in communities awaiting development. + References No definition available. + Details
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- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
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