|
Real Estate Transactions (Narrative) (Details) (USD $)
|
3 Months Ended | 12 Months Ended | 0 Months Ended | |
|---|---|---|---|---|
|
Mar. 31, 2015
property
|
Mar. 31, 2014
|
Dec. 31, 2014
property
|
Apr. 01, 2015
|
|
| Real Estate Properties [Line Items] | ||||
| Purchase price of property | $ 19,658,000 | $ 14,600,000 | ||
| Realized gains (losses) on disposition of rental property, net | 144,000 | |||
| Number of properties sold | 1 | 16 | ||
| City Square Project [Member] | Subsequent Event [Member] | ||||
| Real Estate Properties [Line Items] | ||||
| Number of units | 370 | |||
| Purchase price of property | 3,100,000 | |||
| Contingent consideration | 1,250,000 | |||
| Minimum project start period | 12 months | |||
| Total project costs | 88,000,000 | |||
| 1451 Metropolitan Drive [Member] | ||||
| Real Estate Properties [Line Items] | ||||
| Area of property (in square feet) | 21,600 | |||
| Sales proceeds | $ 1,100,000 | |||