Equity - Series F Preferred Stock and Series F Preferred OP Units (Details)	12 Months Ended
	Dec. 31, 2019 transaction $ / shares shares	Dec. 31, 2018 shares
Class of Stock [Line Items]
Preferred stock, shares issued (shares)	30,871,246	42,834,138
Preferred stock, shares outstanding (shares)	30,871,246	42,834,138
Series F Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, dividend rate (percent)	6.70%
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares	$ 25.00
Dividend rate (in dollars per share) | $ / shares	$ 1.675
Preferred stock redeemed (in shares)	12,000,000.0
Number of transactions | transaction	2
Percentage of shares, issued and outstanding		28.02%
Preferred stock, redemption price per share (in dollars per share) | $ / shares	$ 25.00
Preferred stock, shares issued (shares)	30,900,000
VEREIT Operating Partnership, L.P. [Member] | Preferred Units [Member]
Class of Stock [Line Items]
General partners', units issued (shares)	30,871,246	42,834,138
General partners', units outstanding (shares)	30,871,246	42,834,138
Limited partners', units issued (shares)	49,766	86,874
Limited partners', units outstanding (shares)	49,766	86,874