Summary of Significant Accounting Policies - Principles of Consolidation and Basis of Presentation (Details) - VEREIT Operating Partnership, L.P. [Member] - shares	Sep. 30, 2019	Dec. 31, 2018
Common Stock [Member]
Principles of Consolidation and Basis of Presentation
Limited Partner OP Units outstanding (shares)		23,700,000
Limited partners', units issued (shares)	20,800,000	23,700,000
Preferred Stock [Member]
Principles of Consolidation and Basis of Presentation
Limited Partner OP Units outstanding (shares)	49,766	86,874
Limited partners', units issued (shares)	49,766	86,874