v3.26.1
Cover
Jul. 27, 2026
Document Information [Line Items]  
Document Type N-2
Document Registration Statement true
Post-Effective Amendment true
Post-Effective Amendment Number 10
Registration Statement Amendment Number 13
Investment Company Act Registration true
Dividend or Interest Reinvestment Plan Only false
Delayed or Continuous Offering true
Effective Upon Filing, 462(e) false
Additional Securities Effective, 413(b) false
Effective on Set Date, 486(b) true
Effective on Date, 486(b) Aug. 01, 2026
New Effective Date for Previous Filing false
Additional Securities. 462(b) false
No Substantive Changes, 462(c) false
Exhibits Only, 462(d) false
Approximate Date of Commencement of Proposed Sale to Public As soon as practicable after the effective date of this Registration Statement.
Amendment Flag false
Entity Information [Line Items]  
Entity Registrant Name PRINCIPAL REAL ASSET FUND
Entity Central Index Key 0001756404
Securities Act File Number 333-228850
Investment Company Act File Number 811-23403
Entity Well-known Seasoned Issuer No
Entity Emerging Growth Company false
Entity Inv Company Type N-2
Entity Contact Personnel [Line Items]  
Entity Address, Address Line One 711 High Street
Entity Address, City or Town Des Moines
Entity Address, State or Province IA
Entity Address, Postal Zip Code 50392
Entity Phone Fax Numbers [Line Items]  
City Area Code 515
Local Phone Number 247-6651
Business Contact [Member]  
Entity Contact Personnel [Line Items]  
Contact Personnel Name John L. Sullivan
Entity Address, Address Line One 711 High Street
Entity Address, City or Town Des Moines
Entity Address, State or Province IA
Entity Address, Postal Zip Code 50392