Recent Transactions (Unconsolidated Joint Venture Activity) (Narrative) (Details)
$ in Thousands |
|
|
3 Months Ended |
9 Months Ended |
|
May 26, 2016
USD ($)
item
|
Apr. 01, 2016
USD ($)
|
Jun. 30, 2016
USD ($)
|
Mar. 31, 2016 |
Sep. 30, 2016
USD ($)
item
|
Sep. 30, 2015
USD ($)
|
| Real Estate Properties [Line Items] |
|
|
|
|
|
|
| Purchase price of property |
|
|
|
|
$ 94,017
|
$ 59,700
|
| Gain on sale of investment in unconsolidated joint venture |
|
|
|
|
5,670
|
6,448
|
| Proceeds from the sale of investments in unconsolidated joint ventures |
|
|
|
|
$ 6,420
|
$ 6,448
|
| Multi-Family Properties [Member] |
|
|
|
|
|
|
| Real Estate Properties [Line Items] |
|
|
|
|
|
|
| Number of units | item |
|
|
|
|
5,214
|
|
| PruRose Riverwalk G, L.L.C. [Member] |
|
|
|
|
|
|
| Real Estate Properties [Line Items] |
|
|
|
|
|
|
| Purchase price of property |
|
$ 11,300
|
$ 11,300
|
|
|
|
| Percentage of additional interest acquired |
|
50.00%
|
|
25.00%
|
|
|
| Number of units | item |
|
|
|
|
316
|
|
| PruRose Port Imperial South 15, L.L.C. [Member] |
|
|
|
|
|
|
| Real Estate Properties [Line Items] |
|
|
|
|
|
|
| Number of units | item |
236
|
|
|
|
|
|
| Percentage of interest in venture |
50.00%
|
|
|
|
|
|
| PruRose Port Imperial South 13, L.L.C. [Member] |
|
|
|
|
|
|
| Real Estate Properties [Line Items] |
|
|
|
|
|
|
| Percentage of interest in venture |
20.00%
|
|
|
|
|
|
| PruRose Port Imperial South 13, L.L.C. [Member] | Multi-Family Properties [Member] |
|
|
|
|
|
|
| Real Estate Properties [Line Items] |
|
|
|
|
|
|
| Number of units | item |
280
|
|
|
|
|
|
| Pru Rose Port Imperial South 15 L.L.C. And Pru Rose Port Imperial South 13 L.L.C. [Member] |
|
|
|
|
|
|
| Real Estate Properties [Line Items] |
|
|
|
|
|
|
| Gain on sale of investment in unconsolidated joint venture |
$ 5,700
|
|
|
|
|
|
| Proceeds from the sale of investments in unconsolidated joint ventures |
$ 6,400
|
|
|
|
|
|