Quarterly Results (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended									12 Months Ended
	Dec. 31, 2019		Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019		Dec. 31, 2018		Dec. 31, 2017
Quarterly Financial Information [Line Items]
Rental revenue	$ 305,363		$ 302,985	$ 312,043	$ 316,843	$ 313,263	$ 313,866	$ 315,664	$ 315,074
Net income (loss) from continuing operations						27,872	(73,942)	(74,691)	29,036	$ (307,106)		$ (91,725)		$ 51,495
Income (loss) from discontinued operations, net of income taxes						(30)	0	224	3,501	0		3,695		(19,117)
Net (loss) income	71,168		(741,529)	292,284	70,971	27,842	(73,942)	(74,467)	32,537	(307,106)		(88,030)		32,378
Net loss attributable to the General Partner / OP	$ 71,125		$ (726,440)	$ 285,658	$ 69,304	$ 27,218	$ (72,117)	$ (72,670)	$ 31,795	$ (300,353)		$ (85,774)		$ 31,818
Basic and diluted net income (loss) per share from continuing operations attributable to common stockholders (in dollars per share)						$ 0.01	$ (0.09)	$ (0.09)	$ 0.01	$ (0.37)		$ (0.17)		$ (0.02)
Basic and diluted net income (loss) per share from discontinued operations attributable to common stockholders (in dollars per share)						0.00	0	0.00	0.00	0		0.00		(0.02)
Basic and diluted net income (loss) per share attributable to common stockholders (in dollars per share)	$ 0.05	[1]	$ (0.76)	$ 0.27	$ 0.05	$ 0.01	$ (0.09)	$ (0.09)	$ 0.01	$ (0.37)	[1]	$ (0.16)	[1]	$ (0.04)	[1]
VEREIT Operating Partnership, L.P. [Member]
Quarterly Financial Information [Line Items]
Rental revenue	$ 305,363		$ 302,985	$ 312,043	$ 316,843	$ 313,263	$ 313,866	$ 315,664	$ 315,074
Net income (loss) from continuing operations						27,872	(73,942)	(74,691)	29,036	$ (307,106)		$ (91,725)		$ 51,495
Income (loss) from discontinued operations, net of income taxes						(30)	0	224	3,501	0		3,695		(19,117)
Net (loss) income	71,168		(741,529)	292,284	70,971	27,842	(73,942)	(74,467)	32,537	(307,106)		(88,030)		32,378
Net loss attributable to the General Partner / OP	$ 71,187		$ (741,504)	$ 292,314	$ 70,999	$ 27,883	$ (73,885)	$ (74,451)	$ 32,577	$ (307,004)		$ (87,876)		$ 32,572
Basic and diluted net income (loss) per unit from continuing operations attributable to common unitholders (in dollars per share)						$ 0.01	$ (0.09)	$ (0.09)	$ 0.01	$ (0.37)		$ (0.17)		$ (0.02)
Basic and diluted net income (loss) per unit from discontinued operations attributable to common unitholders (in dollars per share)						0.00	0	0.00	0.00	0		0.00		(0.02)
Basic and diluted net income (loss) per unit attributable to common unitholders (in dollars per share)	$ 0.05	[2]	$ (0.76)	$ 0.27	$ 0.05	$ 0.01	$ (0.09)	$ (0.09)	$ 0.01	$ (0.37)	[2]	$ (0.16)	[2]	$ (0.04)	[2]

[1] Amounts may not total due to rounding.

[2] Amounts may not total due to rounding.