Debt - Convertible Debt (Details)	3 Months Ended
Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Debt Instrument [Line Items]
Weighted-average interest rate	4.20%
Carrying value conversion options in additional paid-in capital	$ 28,600,000
Convertible Debt [Member]
Debt Instrument [Line Items]
Outstanding Balance	$ 1,000,000,000	$ 1,000,000,000
Weighted-average interest rate	3.30%
Unamortized discount	$ 6,465,000	$ 7,782,000
Remaining amortization period	1 year 3 months 15 days
Amount of General Partner OP Units per principal amount	$ 1,000
Convertible Debt [Member] \| 2018 Convertible Notes [Member]
Debt Instrument [Line Items]
Outstanding Balance	$ 597,500,000
Interest Rate	3.00%
Convertible Debt [Member] \| 2020 Convertible Notes [Member]
Debt Instrument [Line Items]
Outstanding Balance	$ 402,500,000
Interest Rate	3.75%
VEREIT Operating Partnership, L.P. [Member] \| Convertible Debt [Member] \| 2018 Convertible Notes [Member]
Debt Instrument [Line Items]
Conversion Rate	0.0605997
VEREIT Operating Partnership, L.P. [Member] \| Convertible Debt [Member] \| 2020 Convertible Notes [Member]
Debt Instrument [Line Items]
Conversion Rate	0.0667249

Amount of increase (decrease) in additional paid in capital (APIC) resulting from recognition of deferred taxes for convertible debt with a beneficial conversion feature.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 55
-Paragraph 51
-URI http://asc.fasb.org/extlink&oid=96868398&loc=d3e34017-109320

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-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-Paragraph 6
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- Definition

Remaining amortization period for discount on the liability component of convertible debt which may be settled in cash upon conversion, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount, after accumulated amortization, of debt discount (premium).

+ References

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-Publisher FASB
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- Definition

Weighted average interest rate of debt outstanding.

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- Definition

Debt Instrument, Convertible, Conversion Ratio, Principal Amount

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