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Noncontrolling Interests (Narrative) (Details)
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Mar. 31, 2012
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|---|---|
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Noncontrolling Interests [Member]
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|
| Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] | |
| Operating Partnership (OP) Units | 16,527,994 |
| Long-Term Incentive Plan (LTIP) Units | 1,690,649 |
| Series Two Preferred Units | 1,030,748 |
| Convertible Operating Partnership (OP) Units | 1,352,688 |
|
OPP Units 2011 [Member]
|
|
| Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] | |
| Outperformance awards in LTIP Units | 400,000 |
|
OPP Units 2012 [Member]
|
|
| Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] | |
| Outperformance awards in LTIP Units | 400,000 |