Organization (Detail) (USD $) In Thousands, unless otherwise specified	0 Months Ended	6 Months Ended
Jun. 11, 2014 mulit_tenant_property	Jun. 30, 2014
Real Estate Properties [Line Items]
Number of reportable segments		2us-gaap_NumberOfReportableSegments
General Partner [Member]
Real Estate Properties [Line Items]
General partner ownership interest in OP		97.30%
ARC Properties Operating Partnership, L.P. [Member]
Real Estate Properties [Line Items]
Partnership units, holding period until right to redeem		1 year
Number of properties acquired	67
Business combination, consideration transferred	$ 1,975,000
ARC Properties Operating Partnership, L.P. [Member] \| Special Limited Partner [Member]
Real Estate Properties [Line Items]
Limited partner ownership interest in OP, Percent		1.00%
ARC Properties Operating Partnership, L.P. [Member] \| Special Limited Partner [Member] \| Affiliated Entity [Member]
Real Estate Properties [Line Items]
Limited partner ownership interest in OP, Percent		1.70%

Partnership Units, Holding Period Until Right to Redeem

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 272

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of units or percentage investment held by one or more members or limited partners of the LLC or LP.

+ References

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of businesses acquired by the entity during the period.

+ References

No definition available.

+ Details

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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