Quarterly Results (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018		Dec. 31, 2017		Dec. 31, 2016
Quarterly Financial Information [Line Items]
Rental revenue	$ 313,263	$ 313,866	$ 315,664	$ 315,074	$ 316,599	$ 306,543	$ 308,245	$ 320,898
Net income (loss) from continuing operations	27,872	(73,942)	(74,691)	29,036	(2,479)	12,489	29,550	11,935	$ (91,725)		$ 51,495		$ (76,887)
Income (loss) from discontinued operations, net of income taxes	(30)	0	224	3,501	(30,613)	4,005	4,636	2,855	3,695		(19,117)		(123,937)
Net (loss) income	27,842	(73,942)	(74,467)	32,537	(33,092)	16,494	34,186	14,790	(88,030)		32,378		(200,824)
Net income (loss) attributable to the General Partner / OP	$ 27,218	$ (72,117)	$ (72,670)	$ 31,795	$ (32,122)	$ 16,094	$ 33,408	$ 14,438	$ (85,774)		$ 31,818		$ (195,863)
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	$ (0.02)	$ (0.01)	$ 0.01	$ (0.01)	$ (0.17)		$ (0.02)		$ (0.16)
Basic and diluted net income (loss) per share from discontinued operations attributable to common stockholders (in dollars per share)	0.00	0.00	0.00	0.00	(0.03)	0.00	0.01	0.00	0.00		(0.02)		(0.13)
Basic and diluted net income (loss) per share attributable to common stockholders (in dollars per share)	$ 0.01	$ (0.09)	$ (0.09)	$ 0.01	$ (0.05)	$ 0.00	$ 0.02	$ 0.00	$ (0.16)	[1]	$ (0.04)	[1]	$ (0.29)	[1]
VEREIT Operating Partnership, L.P. [Member]
Quarterly Financial Information [Line Items]
Rental revenue	$ 313,263	$ 313,866	$ 315,664	$ 315,074	$ 316,599	$ 306,543	$ 308,245	$ 320,898
Net income (loss) from continuing operations	27,872	(73,942)	(74,691)	29,036	(2,479)	12,489	29,550	11,935	$ (91,725)		$ 51,495		$ (76,887)
Income (loss) from discontinued operations, net of income taxes	(30)	0	224	3,501	(30,613)	4,005	4,636	2,855	3,695		(19,117)		(123,937)
Net (loss) income	27,842	(73,942)	(74,467)	32,537	(33,092)	16,494	34,186	14,790	(88,030)		32,378		(200,824)
Net income (loss) attributable to the General Partner / OP	$ 27,883	$ (73,885)	$ (74,451)	$ 32,577	$ (32,910)	$ 16,485	$ 34,200	$ 14,797	$ (87,876)		$ 32,572		$ (200,810)
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	$ (0.02)	$ (0.01)	$ 0.01	$ (0.01)	$ (0.17)		$ (0.02)		$ (0.16)
Basic and diluted net income (loss) per unit from discontinued operations attributable to common unitholders (in dollars per share)	0.00	0.00	0.00	0.00	(0.03)	0.00	0.01	0.00	0.00		(0.02)		(0.13)
Basic and diluted net loss per unit attributable to common unitholders (in dollars per share)	$ 0.01	$ (0.09)	$ (0.09)	$ 0.01	$ (0.05)	$ 0.00	$ 0.02	$ 0.00	$ (0.16)	[2]	$ (0.04)	[2]	$ (0.29)	[2]

[1] Amounts may not total due to rounding.

[2] Amounts may not total due to rounding.