ORGANIZATION AND BUSINESS (Details) $ / shares in Units, ft² in Millions		6 Months Ended
	Apr. 04, 2014 shares	Jun. 30, 2020 USD ($) ft² state property loan $ / shares shares	Aug. 14, 2020 $ / shares	May 29, 2020 $ / shares	May 26, 2020 $ / shares	Dec. 31, 2019 USD ($) property shares	Aug. 02, 2016 USD ($)	Jun. 30, 2016 USD ($) shares	Dec. 19, 2013 USD ($)	Jan. 26, 2012 USD ($)
Organization and Business [Line Items]
Number of owned properties | property		381
Rentable square feet (sqft) | ft²		18.1
Number of states in which entity owns properties | state		42
Percentage of rentable space leased		94.60%
Number of real estate property held for sale | property						29
Number of loans | loan		143
Net book value		$ 598,395,000				$ 301,630,000
Real estate-related securities		$ 16,103,000				$ 0
Common stock, shares issued (in shares) | shares	297,400,000	309,948,707				311,207,725
Shares deregistered (in shares) | shares	404,000
Net asset value per share (USD per share) | $ / shares		$ 7.31			$ 7.26
IPO
Organization and Business [Line Items]
Common stock, shares authorized, value (maximum)										$ 2,975,000,000
Common stock, shares issued (in shares) | shares	292,300,000
DRIP
Organization and Business [Line Items]
Common stock, shares issued (in shares) | shares	5,100,000							241,700,000
Common stock shares registered dividend reinvestment plan, value							$ 600,000,000		$ 247,000,000
Remaining unsold common stock								$ 5,300,000
Share price (USD per share) | $ / shares				$ 7.26
CIM Real Estate Finance Operating Partnership, LP
Organization and Business [Line Items]
General partner partnership interest percentage		100.00%
Subsequent event | DRIP
Organization and Business [Line Items]
Share price (USD per share) | $ / shares			$ 7.31