| Cover Page | May 01, 2024 |
| Entity Information [Line Items] | |
| Document Type | 8-K/A |
| Document Period End Date | May 01, 2024 |
| Entity Registrant Name | BRANDYWINE REALTY TRUST |
| Entity Incorporation, State or Country Code | MD |
| Entity File Number | 001-9106 |
| Entity Tax Identification Number | 23-2413352 |
| Entity Address, Address Line One | 2929 Arch Street |
| Entity Address, Address Line Two | Suite 1800 |
| Entity Address, City or Town | Philadelphia |
| Entity Address, State or Province | PA |
| Entity Address, Postal Zip Code | 19104 |
| City Area Code | 610 |
| Local Phone Number | 325-5600 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Shares of Beneficial Interest |
| Trading Symbol | BDN |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000790816 |
| Amendment Flag | true |
| Amendment Description | Explanatory Note This Current Report on Form 8-K/A (this “Amendment”) amends the Current Report on Form 8-K previously filed by Brandywine Realty Trust and Brandywine Operating Partnership, L.P. (collectively, the “Company”) with the Securities and Exchange Commission on May 7, 2024 (the “Original Report”). The Company is filing this Amendment in order to provide supplemental information under Item 1.05 regarding the cybersecurity incident disclosed by the Company in Item 1.05 of the Original Report (the “cybersecurity incident”). Except as expressly set forth herein, this Amendment does not amend the Original Report. This Amendment supplements, and should be read in conjunction with, Item 1.05 of the Original Report. |
| BRANDYWINE OPERATING PARTNERSHIP, L.P. | |
| Entity Information [Line Items] | |
| Entity Registrant Name | BRANDYWINE OPERATING PARTNERSHIP, L.P. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 000-24407 |
| Entity Tax Identification Number | 23-2862640 |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001060386 |
