Derivatives and Hedging Activities - Cash Flow Hedges of Interest Rate Risk (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Jan. 24, 2019	Dec. 31, 2018
Derivative [Line Items]
Gain (loss) to be reclassified in next twelve months	$ 6,100,000		$ 6,100,000
Interest Rate Swap [Member]
Derivative [Line Items]
Notional amount					$ 900,000,000.0
Derivative						$ 0
Line of Credit [Member] | Loans Payable [Member] | VEREIT Operating Partnership, L.P. [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Interest rate					3.84%
Deferred Rent, Derivative Liabilities and Other Liabilities [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Derivative liabilities	(27,600,000)		(27,600,000)
LIBOR [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Basis spread on variable rate					1.35%
Cash Flow Hedging [Member]
Derivative [Line Items]
Amount of (loss) gain recognized in income on cash flow hedges	(16,300,000)	$ 0	(27,600,000)	$ 0
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Reclassification of previous unrealized loss on interest rate derivatives into net income	$ 100,000	$ 100,000	$ 200,000	$ 200,000