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Organization of the Parent Company and The Operating Partnership | 3 Months Ended
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Mar. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
ORGANIZATION OF THE PARENT COMPANY AND THE OPERATING PARTNERSHIP [Text Block] | ORGANIZATION OF THE PARENT COMPANY AND THE OPERATING PARTNERSHIP The Parent Company is a self-administered and self-managed real estate investment trust (“REIT”) that provides leasing, property management, development, redevelopment, acquisition and other tenant-related services for a portfolio of office and industrial properties. The Parent Company owns its assets and conducts its operations through the Operating Partnership and subsidiaries of the Operating Partnership. The Parent Company is the sole general partner of the Operating Partnership and, as of March 31, 2013, owned a 98.7% interest in the Operating Partnership. The Parent Company’s common shares of beneficial interest are publicly traded on the New York Stock Exchange under the ticker symbol “BDN”. As of March 31, 2013, the Company owned 214 properties, consisting of 185 office properties, 19 industrial facilities, five mixed-use properties, one development property, two redevelopment properties and two re-entitlement properties (collectively, the “Properties”) containing an aggregate of approximately 24.3 million net rentable square feet. In addition, as of March 31, 2013, the Company owned economic interests in 19 unconsolidated real estate ventures that contain approximately 6.4 million net rentable square feet (collectively, the “Real Estate Ventures”). As of March 31, 2013, the Company also owned 431 acres of undeveloped land, and held options to purchase approximately 51 additional acres of undeveloped land. As of March 31, 2013, the total potential development that these land parcels could support, under current zoning, entitlements or combination thereof, amounted to 6.1 million square feet. The Properties and the properties owned by the Real Estate Ventures are located in or near Philadelphia, Pennsylvania; Metropolitan Washington, D.C.; Southern New Jersey; Richmond, Virginia; Wilmington, Delaware; Austin, Texas and Oakland, Concord, Carlsbad and Rancho Bernardo, California. The Company conducts its third-party real estate management services business primarily through wholly-owned management company subsidiaries. As of March 31, 2013, the management company subsidiaries were managing properties containing an aggregate of approximately 31.1 million net rentable square feet, of which approximately 24.3 million net rentable square feet related to Properties owned by the Company and approximately 6.8 million net rentable square feet related to properties owned by third parties and Real Estate Ventures.

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- Definition The entire disclosure for the organization, consolidation and basis of presentation of financial statements disclosure, and significant accounting policies of the reporting entity. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows. Describes procedure if disclosures are provided in more than one note to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 22 -Paragraph 8 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 94-6 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 46R -Paragraph 4, 14, 15 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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