Cover Page - shares	6 Months Ended
	Jun. 30, 2020	Aug. 05, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2020
Document Transition Report	false
Entity File Number	000-54382
Entity Registrant Name	PACIFIC OAK STRATEGIC OPPORTUNITY REIT, INC.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	26-3842535
Entity Address, Address Line One	11766 Wilshire Blvd., Suite 1670
Entity Address, City or Town	Los Angeles,
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	90025
City Area Code	424
Local Phone Number	208-8100
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		69,225,016
Entity Central Index Key	0001452936
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Amendment Flag	false