Summary of Significant Accounting Policies - Income Taxes (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Provision (benefit) for income taxes	$ 5,101,000	$ 6,882,000	$ 7,136,000
Unrecognized tax benefits	0	0	0
VEREIT Operating Partnership, L.P. [Member]
Segment Reporting Information [Line Items]
Provision (benefit) for income taxes	5,101,000	6,882,000	7,136,000
State and Local Jurisdiction [Member] | VEREIT Operating Partnership, L.P. [Member]
Segment Reporting Information [Line Items]
Provision (benefit) for income taxes	4,700,000	6,900,000	6,000,000
State and Local Jurisdiction [Member] | TRS Entity [Member]
Segment Reporting Information [Line Items]
Provision (benefit) for income taxes	$ 400,000	$ 0	$ 1,100,000