Document and Entity Information
Jul. 08, 2022
Document And Entity Information [Line Items]  
Entity Registrant Name PS BUSINESS PARKS, INC./MD
Amendment Flag false
Entity Central Index Key 0000866368
Document Type 8-K
Document Period End Date Jul. 08, 2022
Entity Incorporation State Country Code MD
Entity File Number 001-10709
Entity Tax Identification Number 95-4300881
Entity Address, Address Line One 701 Western Avenue
Entity Address, City or Town Glendale
Entity Address, State or Province CA
Entity Address, Postal Zip Code 91201-2349
City Area Code (818)
Local Phone Number 244-8080
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 And Entity Information [Line Items]  
Security 12b Title Common Stock, $0.01 par value per share
Trading Symbol PSB
Security Exchange Name NYSE
Depositary Shares Each Representing 11000 Of A 5.250 Cum Pref Share Series X 0.01 Par Value [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Depositary Shares Each Representing 1/1,000 of a 5.250% Cum Pref Share, Series X, $0.01 par value
Trading Symbol PSBPrX
Security Exchange Name NYSE
Depositary Shares Each Representing 11000 Of A 5.200 Cum Pref Share Series Y 0.01 Par Value [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Depositary Shares Each Representing 1/1,000 of a 5.200% Cum Pref Share, Series Y, $0.01 par value
Trading Symbol PSBPrY
Security Exchange Name NYSE
Depositary Shares Each Representing 11000 Of A 4.875 Cum Pref Share Series Z 0.01 Par Value [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Depositary Shares Each Representing 1/1,000 of a 4.875% Cum Pref Share, Series Z, $0.01 par value
Trading Symbol PSBPrZ
Security Exchange Name NYSE