XML 99 R77.htm IDEA: XBRL DOCUMENT
v3.25.0.1

INVESTMENT IN UNCONSOLIDATED REAL ESTATE VENTURES - Schedule of Investment in Real Estate Ventures and Share of Real Estate Ventures' Income (Loss) (Details) $ in Thousands | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 20, 2024 portfolio | Nov. 30, 2024 | Sep. 30, 2024 | Jun. 28, 2024 | Mar. 31, 2024 | Dec. 21, 2020
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Investments in equity securities | $ 570,455 | $ 552,494 |  |  |  |  |  |  |
Company's unconsolidated real estate venture Income (Loss) | (191,585) | (77,915) | $ (22,016) |  |  |  |  |  |
Unconsolidated Real Estate Venture Debt at 100%, gross | $ 757,021 | 1,412,758 |  |  |  |  |  |  |
Commerce Square Venture |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Ownership Percentage | 84.00% |  |  |  | 84.00% |  |  |  |
Investments in equity securities | $ 179,061 | 272,216 |  |  |  |  |  |  |
Company's unconsolidated real estate venture Income (Loss) | (134,545) | (18,791) | (12,128) |  |  |  |  |  |
Unconsolidated Real Estate Venture Debt at 100%, gross | $ 220,000 | 220,000 |  |  |  |  |  |  |
Mid-Atlantic Office JV |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Ownership Percentage | 40.00% |  |  |  |  |  |  |  | 40.00%
Investments in equity securities | $ 10,844 | 0 |  |  |  |  |  |  |
Company's unconsolidated real estate venture Income (Loss) | 7,141 | (26,448) | 412 |  |  |  |  |  |
Unconsolidated Real Estate Venture Debt at 100%, gross | $ 62,023 | 132,770 |  |  |  |  |  |  |
Herndon Innovation Center Metro Portfolio Venture, LLC |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Ownership Percentage | 15.00% |  |  |  |  |  |  |  |
Investments in equity securities | $ 0 | 3,518 |  |  |  |  |  |  |
Company's unconsolidated real estate venture Income (Loss) | 0 | (11,854) | (536) |  |  |  |  |  |
Unconsolidated Real Estate Venture Debt at 100%, gross | $ 0 | 233,443 |  |  |  |  |  |  |
MAP Venture |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Ownership Percentage | 5.00% |  |  |  |  |  |  | 50.00% |
Investments in equity securities | $ 0 | (48,733) |  |  |  |  |  |  |
Company's unconsolidated real estate venture Income (Loss) | (6,541) | (10,580) | (8,340) |  |  |  |  |  |
Unconsolidated Real Estate Venture Debt at 100%, gross | $ 0 | 179,842 |  |  |  |  |  |  |
Cira Square |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Ownership Percentage | 20.00% |  |  |  |  |  |  |  |
Investments in equity securities | $ 42,969 | 25,242 |  |  |  |  |  |  |
Company's unconsolidated real estate venture Income (Loss) | (1,648) | (2,474) | (985) |  |  |  |  |  |
Unconsolidated Real Estate Venture Debt at 100%, gross | $ 160,000 | 257,700 |  |  |  |  |  |  |
KB JV |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Ownership Percentage | 50.00% |  |  |  |  |  | 50.00% |  |
Investments in equity securities | $ 42 | 0 |  |  |  |  |  |  |
Company's unconsolidated real estate venture Income (Loss) | 986 | 0 | 0 |  |  |  |  |  |
Unconsolidated Real Estate Venture Debt at 100%, gross | $ 0 | 0 |  |  |  |  |  |  |
Number of properties sold | portfolio |  |  |  | 14 |  |  |  |  |
4040 Wilson Venture |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Ownership Percentage | 50.00% |  |  |  |  | 50.00% |  |  |
Investments in equity securities | $ 0 | 29,419 |  |  |  |  |  |  |
Company's unconsolidated real estate venture Income (Loss) | (10,618) | (2,536) | (1,211) |  |  |  |  |  |
Unconsolidated Real Estate Venture Debt at 100%, gross | $ 0 | 145,000 |  |  |  |  |  |  |
1919 Venture |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Ownership Percentage | 50.00% |  |  |  |  |  |  |  |
Investments in equity securities | $ 0 | 0 |  |  |  |  |  |  |
Company's unconsolidated real estate venture Income (Loss) | 0 | 0 | 1,392 |  |  |  |  |  |
Unconsolidated Real Estate Venture Debt at 100%, gross | $ 0 | 0 |  |  |  |  |  |  |
One Uptown - Multifamily |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Ownership Percentage | 50.00% |  |  |  |  |  |  |  |
Investments in equity securities | $ 29,818 | 32,124 |  |  |  |  |  |  |
Company's unconsolidated real estate venture Income (Loss) | (3,800) | 0 | 0 |  |  |  |  |  |
Unconsolidated Real Estate Venture Debt at 100%, gross | $ 72,197 | 40,270 |  |  |  |  |  |  |
3025 JFK Boulevard |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Ownership Percentage | 64.00% |  |  |  |  |  |  |  |
Investments in equity securities | $ 61,379 | 62,034 |  |  |  |  |  |  |
Company's unconsolidated real estate venture Income (Loss) | (19,271) | (4,456) | (35) |  |  |  |  |  |
Unconsolidated Real Estate Venture Debt at 100%, gross | $ 173,754 | 152,032 |  |  |  |  |  |  |
JBG 51 N Street |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Ownership Percentage | 70.00% |  |  |  |  |  |  |  |
Investments in equity securities | $ 8,209 | 21,150 |  |  |  |  |  |  |
Company's unconsolidated real estate venture Income (Loss) | (13,397) | (435) | (382) |  |  |  |  |  |
Unconsolidated Real Estate Venture Debt at 100%, gross | $ 0 | 0 |  |  |  |  |  |  |
JBG 1250 First Street Office |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Ownership Percentage | 70.00% |  |  |  |  |  |  |  |
Investments in equity securities | $ 8,531 | 17,843 |  |  |  |  |  |  |
Company's unconsolidated real estate venture Income (Loss) | (9,586) | (269) | (195) |  |  |  |  |  |
Unconsolidated Real Estate Venture Debt at 100%, gross | $ 0 | 0 |  |  |  |  |  |  |
3151 Market Street Venture |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Ownership Percentage | 76.00% |  |  |  |  |  |  |  |
Investments in equity securities | $ 168,925 | 90,645 |  |  |  |  |  |  |
Company's unconsolidated real estate venture Income (Loss) | (105) | (72) | (8) |  |  |  |  |  |
Unconsolidated Real Estate Venture Debt at 100%, gross | $ 0 | $ 0 |  |  |  |  |  |  |
One Uptown - Office |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Ownership Percentage | 62.00% | 57.00% |  |  |  |  |  |  |
Investments in equity securities | $ 60,677 | $ 47,036 |  |  |  |  |  |  |
Company's unconsolidated real estate venture Income (Loss) | (201) | 0 | $ 0 |  |  |  |  |  |
Unconsolidated Real Estate Venture Debt at 100%, gross | $ 69,047 | $ 51,701 |  |  |  |  |  |  |

X
- Definition Equity method investment summarized financial information debt. + References No definition available. + Details
Name: | bdn_EquityMethodInvestmentSummarizedFinancialInformationDebt
Namespace Prefix: | bdn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number of Properties Sold + References No definition available. + Details
Name: | bdn_NumberOfPropertiesSold
Namespace Prefix: | bdn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- 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://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 270 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482964/270-10-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (ee) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481664/323-10-45-1 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(10)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 25 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-25 + Details
Name: | us-gaap_EquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of income (loss) for proportionate share of equity method investee's income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 270 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482964/270-10-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (ee) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(10)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481664/323-10-45-1 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(12)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(13)(f)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 + Details
Name: | us-gaap_IncomeLossFromEquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- 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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 28 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-28 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 + Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=bdn_CommerceSquareVentureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=bdn_MidAtlanticOfficeVentureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=bdn_HerndonInnovationCenterMetroPortfolioVentureLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=bdn_MAPVentureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=bdn_CiraSquareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=bdn_KBJVMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=bdn_A4040WilsonVentureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=bdn_BrandywineNineteenNineteenVenturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=bdn_OneUptownMultifamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=bdn_A3025JFKBoulevardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=bdn_A51N50PattersonHoldingsLLCVentureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=bdn_A1250FirstStreetOfficeLLCVentureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=bdn_A3151MarketStreetVentureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=bdn_OneUptownVentureOfficeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |