Real Estate Investments (Details) (USD $)	3 Months Ended			6 Months Ended				6 Months Ended			36 Months Ended		36 Months Ended	3 Months Ended		6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013	Jun. 30, 2014		Jun. 30, 2013	Dec. 31, 2013	Jun. 30, 2014 Geographic Concentration Risk [Member] Lease Revenue [Member] Texas	Jun. 30, 2014 Columbia, South Carolina [Member] sqft	Jun. 30, 2014 The Woodlands, Texas [Member] sqft	Dec. 31, 2013 The Woodlands, Texas [Member]	Sep. 30, 2013 The Woodlands, Texas [Member]	Dec. 31, 2013 The Woodlands, Texas [Member] Developer Partner [Member]	Jun. 30, 2014 2014 Acquisitions [Member] property sqft	Jun. 30, 2013 2014 Acquisitions [Member] property	Jun. 30, 2014 2014 Acquisitions [Member] property land_parcel sqft	Jun. 30, 2013 2014 Acquisitions [Member] property	Jun. 30, 2014 Acquisitions, 2014, Excluding Cole Merger, ARCT IV Merger And CCPT Merger [Member] land_parcel property	Jun. 30, 2014 Acquisitions, 2014, Cole Merger and American Realty Capital Trust IV [Member]	Jun. 30, 2013 Acquisitions, 2014, Cole Merger and American Realty Capital Trust IV [Member]	Jun. 30, 2014 American Realty Capital Trust IV, Inc. [Member]		Jun. 27, 2013 GE Capital Portfolio [Member] property
Business Acquisition [Line Items]
Capital Leased Assets, Number of Units																							47
Number of land parcels acquired																18		18
Business combination, consideration transferred																		$ 1,500,000,000
Land														109,075,000	416,887,000	239,663,000	493,029,000
Buildings, fixtures and improvements														482,074,000	1,129,906,000	1,185,641,000	1,424,900,000
Total tangible assets														591,149,000	1,546,793,000	1,425,304,000	1,917,929,000
In-place leases														30,801,000	165,576,000	128,581,000	211,748,000
Above-market leases														5,511,000	0	21,145,000	0
Below-market leases														(1,869,000)	0	(3,321,000)	0
Fair value adjustment of assumed notes payable														0	0	(23,589,000)	0
Total purchase price of assets acquired, net														625,592,000	1,712,369,000	1,548,120,000	2,129,677,000
Notes payable assumed														0	0	301,532,000	0
Cash paid for acquired real estate investments														625,592,000	1,712,369,000	1,246,588,000	2,129,677,000
Number of properties acquired														122	899	337	1,011	337
Acquisition related	8,453,000		37,289,000	20,337,000		47,616,000													20,300,000	47,600,000
Merger and other transaction related	13,286,000		6,393,000	235,478,000		144,162,000													235,500,000	144,200,000
Pro forma revenues																			827,562,000	155,269,000
Pro forma net income (loss) attributable to stockholders																			(67,207,000)	2,386,000
Land																					183,200,000
Buildings, fixtures and improvements																					300,400,000	[1]
Acquired intangible lease assets																					47,000,000
Below-market lease liabilities																					7,800,000
Land																					40,700,000
Acquired intangible lease assets																					2,700,000
Acquired lease liabilities																					7,800,000
Buildings, fixtures and improvements																					(32,100,000)
Investments in direct financing leases																					(3,500,000)
Future Minimum Operating Lease Base Rent Payments
Future Minimum Payments, July 1, 2014 - December 31, 2014	677,188,000			677,188,000
Future Minimum Payments, 2015	1,214,297,000			1,214,297,000
Future Minimum Payments, 2016	1,191,214,000			1,191,214,000
Future Minimum Payments, 2017	1,142,109,000			1,142,109,000
Future Minimum Payments, 2018	1,087,444,000			1,087,444,000
Future Minimum Payments, Thereafter	7,706,549,000			7,706,549,000
Future Minimum Payments, Total	13,018,801,000			13,018,801,000
Future Minimum Direct Financing Lease Payments
Future Minimum Direct Financing Lease Payments, July 1, 2014 - December 31, 2014	2,485,000	[2]		2,485,000	[2]
Future Minimum Direct Financing Lease Payments, 2015	4,757,000	[2]		4,757,000	[2]
Future Minimum Direct Financing Lease Payments, 2016	4,674,000	[2]		4,674,000	[2]
Future Minimum Direct Financing Lease Payments, 2017	4,273,000	[2]		4,273,000	[2]
Future Minimum Direct Financing Lease Payments, 2018	3,183,000	[2]		3,183,000	[2]
Future Minimum Direct Financing Lease Payments, Thereafter	10,052,000	[2]		10,052,000	[2]
Future Minimum Direct Financing Lease Payments, Total	29,424,000	[2]		29,424,000	[2]
Future minimum lease payments receivable	29,685,000			29,685,000			33,729,000
Unguaranteed residual value of property	43,884,000			43,884,000			46,172,000
Unearned income	(11,475,000)			(11,475,000)			(13,789,000)
Investment in direct financing leases, net	62,094,000			62,094,000			66,112,000
Estimated cost to complete construction									1,700,000	14,000,000						15,300,000
Land														8,200,000		8,200,000
Number of square feet									450,000	150,000				106,800,000		106,800,000
Investment amount, total									22,000,000	34,000,000
Land and construction in progress	62,594,000			62,594,000			22,230,000		20,400,000	20,000,000
Interest costs capitalized									37,000	68,000
Proceeds from senior corporate credit facility										$ 17,000,000
Equity contributions percentage											90.00%		10.00%
Cost overruns percentage split										50.00%
Percentage of square footage leased												95.00%
Concentration risk, percentage								12.90%

[1] As reported in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013.

[2] properties are subject to direct financing leases and, therefore, revenue is recognized as direct financing lease income on the discounted cash flows of the lease payments. Amounts reflected are the cash rent on these respective properties.