v3.24.1.1.u2
Cover
May 23, 2024
Document Information [Line Items]  
Document Type 8-K
Amendment Flag false
Document Period End Date May 23, 2024
Entity File Number 001-34364
Entity Registrant Name OFFICE PROPERTIES INCOME TRUST
Entity Central Index Key 0001456772
Entity Tax Identification Number 26-4273474
Entity Incorporation, State or Country Code MD
Entity Address, Address Line One Two Newton Place
Entity Address, Address Line Two 255 Washington Street
Entity Address, Address Line Three Suite 300
Entity Address, City or Town Newton
Entity Address, State or Province MA
Entity Address, Postal Zip Code 02458-1634
City Area Code 617
Local Phone Number 219-1440
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Common Stock [Member]  
Document Information [Line Items]  
Title of 12(b) Security Common Shares of Beneficial Interest
Trading Symbol OPI
Security Exchange Name NASDAQ
Senior Unsecured Notes 6. 375 Percent Due In 2050 [Member]  
Document Information [Line Items]  
Title of 12(b) Security 6.375% Senior Notes due 2050
Trading Symbol OPINL
Security Exchange Name NASDAQ