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Disclosure - Significant Accounting Policies (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40202 - Disclosure - Significant Accounting Policies (Estimated Useful Lives Of Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 40301 - Disclosure - Real Estate Transactions (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40304 - Disclosure - Real Estate Transactions (Schedule Of Properties Which Commenced Initial Operations) (Details) link:presentationLink link:calculationLink link:definitionLink 40305 - Disclosure - Real Estate Transactions (Schedule Of Property Sales) (Details) link:presentationLink link:calculationLink link:definitionLink 40401 - Disclosure - Investments In Unconsolidated Joint Ventures (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40403 - Disclosure - Investments In Unconsolidated Joint Ventures (Summary Of Company's Investment In Unconsolidated Joint Ventures) (Details) link:presentationLink link:calculationLink link:definitionLink 40405 - Disclosure - Investments In Unconsolidated Joint Ventures (Summary Of Company's Equity In Earnings (Loss) Of Unconsolidated Joint Ventures) (Details) link:presentationLink link:calculationLink link:definitionLink 40406 - Disclosure - Investments In Unconsolidated Joint Ventures (Plaza VIII And IX Associates, L.L.C.) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40407 - Disclosure - Investments In Unconsolidated Joint Ventures (South Pier At Harborside - Hotel) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40408 - Disclosure - Investments In Unconsolidated Joint Ventures (Red Bank Corporate Plaza, L.L.C.) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40409 - Disclosure - Investments In Unconsolidated Joint Ventures (12 Vreeland Associates, L.L.C.) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40410 - Disclosure - Investments In Unconsolidated Joint Ventures (Boston-Downtown Crossing) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40411 - Disclosure - Investments In Unconsolidated Joint Ventures (Gale Jefferson, L.L.C.) 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