v3.22.2.2
Document and Entity Information
Sep. 27, 2022
Cover [Abstract]  
Entity Address, State or Province DC
Amendment Flag false
Entity Central Index Key 0000104894
Document Type 8-K
Document Period End Date Sep. 27, 2022
Entity Registrant Name WASHINGTON REAL ESTATE INVESTMENT TRUST
Entity Incorporation State Country Code MD
Entity File Number 001-06622
Entity Tax Identification Number 53-0261100
Entity Address, Address Line One 1775 EYE STREET, NW
Entity Address, Address Line Two SUITE 1000
Entity Address, City or Town WASHINGTON
Entity Address, Postal Zip Code 20006
City Area Code (202)
Local Phone Number 774-3200
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Shares of Beneficial Interest
Trading Symbol WRE
Security Exchange Name NYSE
Entity Emerging Growth Company false