Equity - Common Stock and General Partner OP Units (Details) - shares	Sep. 30, 2021	Dec. 31, 2020
Class of Stock [Line Items]
Common stock, shares authorized (shares)	1,500,000,000	1,500,000,000
Common stock, shares issued (shares)	229,152,001	228,881,547
Common stock, shares outstanding (shares)	229,152,001	228,881,547
VEREIT Operating Partnership, L.P. [Member] | Common Stock [Member]
Class of Stock [Line Items]
General partners', units outstanding (shares)	229,152,001	228,881,547
General partners', units issued (shares)	229,152,001	228,881,547
VEREIT Operating Partnership, L.P. [Member] | General Partner [Member] | Common Stock [Member]
Class of Stock [Line Items]
General partners', units outstanding (shares)	229,200,000
General partners', units issued (shares)	229,200,000