|
Noncontrolling Interests In Subsidiaries (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified |
9 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
|
Sep. 30, 2012
|
Dec. 31, 2011
|
Oct. 28, 2011
Series C Preferred Stock [Member]
|
Sep. 30, 2012
Participation Rights [Member]
|
Sep. 30, 2012
Future Developments [Member]
Participation Rights [Member]
|
Sep. 30, 2012
Office Buildings [Member]
Participation Rights [Member]
property
sqft
|
|
| Noncontrolling Interest [Line Items] | ||||||
| Preferred stock issued | $ 25 | |||||
| Preferred unit in operating partnership | 25 | |||||
| Number of common shares received upon redemption of common units | 1 | |||||
| Rebalance of ownership percentage | $ 0.3 | |||||
| Percentage of noncontrolling interest | 12.20% | 12.20% | ||||
| Number of properties | 2 | 4 | ||||
| Square footage of office buildings | 860,246 | |||||
| Excess net cash flow remaining after the distribution to the Company | 50.00% | |||||
| Internal rate of return | 10.00% | |||||