Area of a real estate property.

No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

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- Definition

The book value of investments in real estate joint ventures including direct and indirect investments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(d))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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- Details

Name:	dei_LegalEntityAxis=bdn_JointVentureWithUnaffiliatedThirdPartyMember
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- Details

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INVESTMENT IN UNCONSOLIDATED REAL ESTATE VENTURES - 3151 Market Street Venture (Details) $ in Thousands	Dec. 31, 2022 USD ($) ft²	Jul. 14, 2022 USD ($) ft²	Dec. 31, 2021 USD ($)
Schedule of Equity Method Investments [Line Items]
Area of real estate property \| ft²	13,578,188
Investment in real estate ventures, at equity	$ 532,224		$ 411,110
3151 Market Street
Schedule of Equity Method Investments [Line Items]
Area of real estate property \| ft²		417,000
Investment in real estate ventures, at equity		$ 308,000
3151 Market Street \| Joint Venture With Unaffiliated Third Party
Schedule of Equity Method Investments [Line Items]
Investment in real estate ventures, at equity		$ 55,000
3151 Market Street \| Joint Venture With Unaffiliated Third Party \| Joint Venture With Unaffiliated Third Party
Schedule of Equity Method Investments [Line Items]
Ownership percentage		45.00%