CONSOLIDATED STATEMENT OF CHANGES IN EQUITY - ARC Properties Operating Partnership, L.P. (USD $)	Total	Affiliated Entity [Member]	Offering Related Costs [Member] Affiliated Entity [Member]	ARC Properties Operating Partnership, L.P. [Member]	ARC Properties Operating Partnership, L.P. [Member] Limited Partners' Common Stock to General Partners' Common Stock [Member]	ARC Properties Operating Partnership, L.P. [Member] General Partner Common Stock [Member]	ARC Properties Operating Partnership, L.P. [Member] Limited Partner Common Stock [Member]	ARC Properties Operating Partnership, L.P. [Member] Series C Preferred Stock [Member]	ARC Properties Operating Partnership, L.P. [Member] General Partner	ARC Properties Operating Partnership, L.P. [Member] Limited Partner	ARC Properties Operating Partnership, L.P. [Member] Total Stockholders' Equity	ARC Properties Operating Partnership, L.P. [Member] Total Stockholders' Equity Limited Partners' Common Stock to General Partners' Common Stock [Member]	ARC Properties Operating Partnership, L.P. [Member] Total Stockholders' Equity General Partner Common Stock [Member]	ARC Properties Operating Partnership, L.P. [Member] Total Stockholders' Equity Limited Partner Common Stock [Member]	ARC Properties Operating Partnership, L.P. [Member] Total Stockholders' Equity Series C Preferred Stock [Member]	ARC Properties Operating Partnership, L.P. [Member] Total Stockholders' Equity General Partner	ARC Properties Operating Partnership, L.P. [Member] Preferred Stock [Member] General Partner	ARC Properties Operating Partnership, L.P. [Member] Preferred Stock [Member] General Partner General Partners' Preferred Stock to General Partners' Common Stock [Member]	ARC Properties Operating Partnership, L.P. [Member] Preferred Stock [Member] Limited Partner	ARC Properties Operating Partnership, L.P. [Member] Common OP Units [Member] General Partner	ARC Properties Operating Partnership, L.P. [Member] Common OP Units [Member] General Partner Limited Partners' Common Stock to General Partners' Common Stock [Member]	ARC Properties Operating Partnership, L.P. [Member] Common OP Units [Member] General Partner General Partners' Preferred Stock to General Partners' Common Stock [Member]	ARC Properties Operating Partnership, L.P. [Member] Common OP Units [Member] General Partner General Partner Common Stock [Member]	ARC Properties Operating Partnership, L.P. [Member] Common OP Units [Member] General Partner Limited Partner Common Stock [Member]	ARC Properties Operating Partnership, L.P. [Member] Common OP Units [Member] General Partner Series C Preferred Stock [Member]	ARC Properties Operating Partnership, L.P. [Member] Common OP Units [Member] Limited Partner	ARC Properties Operating Partnership, L.P. [Member] Common OP Units [Member] Limited Partner Limited Partners' Common Stock to General Partners' Common Stock [Member]	ARC Properties Operating Partnership, L.P. [Member] Common OP Units [Member] Limited Partner Limited Partner Common Stock [Member]	ARC Properties Operating Partnership, L.P. [Member] Non-Controlling Interests [Member]	ARC Properties Operating Partnership, L.P. [Member] Non-Controlling Interests [Member] Limited Partner
Beginning balance at Dec. 31, 2011				$ 140,788,000							$ 140,788,000						$ 0		$ 0	$ 137,088,000						$ 3,700,000			$ 0
Units, outstanding, beginning balance at Dec. 31, 2011																	0		0	17,162,016						310,000
Increase (Decrease) in Partners' Capital [Roll Forward]
Issuance of Common OP units, net, units																	828,472						164,775,688
Issuance of common OP units, net				9,000,000		1,758,789,000	(75,416,000)				9,000,000		1,758,789,000	(75,416,000)			9,000,000						1,758,789,000	(75,416,000)
Issuance of Common OP Units through distribution reinvestment plan, units																				2,686,141
Issuance of Common OP Units through distribution reinvestment plan				27,136,000							27,136,000									27,136,000
Offering costs, commissions and dealer manager fees				(218,431,000)							(218,431,000)									(218,431,000)
Repurchases of Common OP Units, units																				183,119
Repurchases of Common OP Units				(1,953,000)							(1,953,000)									(1,953,000)
Partners' Capital Account, Units, Business Combination, Consideration Transferred Above Historical Cost																	6,161,856
Excess of ARCT IV Merger considerations over historical cost				154,047,000							154,047,000						154,047,000
Conversion of Units to units					(93,421,000)							(93,421,000)									(93,421,000)
Partners' Capital Account, Units, Contributed																										734,973
Partners' Capital Account, Contributions				7,375,000							7,375,000															7,375,000
General Partners' Capital Account, Units, Period Distribution Amount																				112,950
General Partners' Capital Account, Period Distribution Amount				1,230,000							1,230,000									1,230,000
Distributions to Common OP Units, LTIPs and non-controlling interests	(663,000)
Partners' Capital Account, Units, Contribution Transactions																										576,376
Partners' Capital Account, Contribution Transactions				6,352,000							6,352,000															6,352,000
Non-controlling interests retained in Cole Merger	7,375,000
Partners' Capital Account, Distributions				(663,000)							(663,000)															(663,000)
Net loss	(42,237,000)			(42,237,000)							(42,237,000)									(41,652,000)						(585,000)
Other comprehensive loss	(3,836,000)			(3,836,000)							(3,836,000)									(3,783,000)						(53,000)
Related party expenses		0	211,391,000
Beginning balance at Dec. 31, 2012				1,668,760,000							1,668,760,000						163,047,000		0	1,489,587,000						16,126,000			0
Units, outstanding, ending balance at Dec. 31, 2012																	6,990,328		0	184,553,676						1,621,349
Increase (Decrease) in Partners' Capital [Roll Forward]
Issuance of Common OP units, net, units																	36,037,691		721,465				78,215,719			630,689		8,029,545
Issuance of common OP units, net				931,803,000		1,253,343,000	107,771,000				931,803,000		1,253,343,000	107,771,000			900,942,000		16,466,000				1,253,343,000			14,395,000		107,771,000
Issuance of Common OP Units through distribution reinvestment plan, units																				940,737
Issuance of Common OP Units through distribution reinvestment plan				25,564,000							25,564,000									25,564,000
Offering costs, commissions and dealer manager fees				(165,531,000)							(165,531,000)									(165,531,000)
Repurchases of Common OP Units, units																				(28,305,844)
Repurchases of Common OP Units				(358,041,000)							(358,041,000)									(358,041,000)
Excess of ARCT IV Merger considerations over historical cost				(558,089,000)							(558,089,000)									(558,089,000)
Conversion of Units to units, units																		(828,472)			599,233	829,629			1,411,030		(599,233)
Conversion of Units to units								17,396,000							17,396,000			(9,000,000)			5,800,000	9,000,000			17,396,000		(5,800,000)
Equity-based compensation, units																				1,004,673						8,241,100
Equity-based compensation				40,662,000							40,662,000									7,962,000						32,700,000
Partners' Capital Account, Contributions				2,313,000							2,313,000									2,313,000
General Partners' Capital Account, Period Distribution Amount				(259,468,000)							(259,468,000)									(259,468,000)
Distributions to Common OP Units, LTIPs and non-controlling interests	(9,014,000)
Contributions from non-controlling interest holders	(1,152,000)
Equity component of convertible debt				28,559,000							28,559,000									28,559,000
Non-controlling interests retained in Cole Merger	30,861,000
Partners' Capital Account, Units, Redeemed																										(91,176)
Partners' Capital Account, Redemptions				(1,152,000)							(1,152,000)															(1,152,000)
Non-controlling interests retained in CapLease and Cole Merger	567,000			567,000																									567,000
Partners' Capital Account, Distributions				(9,014,000)							(9,014,000)															(9,014,000)
Net loss	(507,815,000)			(507,815,000)							(507,815,000)									(491,499,000)						(16,316,000)
Other comprehensive loss	11,600,000			11,600,000							11,600,000									11,227,000						373,000
Related party expenses		0	161,796,000
Beginning balance at Dec. 31, 2013				2,229,228,000							2,228,661,000						1,054,989,000		16,466,000	1,018,123,000						139,083,000			567,000
Units, outstanding, ending balance at Dec. 31, 2013																	42,199,547		721,465	239,248,853						17,832,274
Increase (Decrease) in Partners' Capital [Roll Forward]
Issuance of Common OP units, net, units																				662,305,318						7,956,297
Issuance of common OP units, net									9,082,747,000							9,082,747,000				8,930,263,000						152,484,000
Conversion of Units to units, units																	634,591		(634,591)	1,108,351						(1,108,351)
Conversion of Units to units																	12,677,000		(12,677,000)	16,046,000						(16,046,000)
Issuance of restricted units and LTIPs, net, units																				(551,664)
Issuance of Common OP Units in connection with share awards, net				(7,690,000)							(7,690,000)									(7,690,000)
Equity-based compensation, units																				3,433,701
Equity-based compensation				31,861,000							31,861,000									30,261,000						1,600,000
Excess tax benefit				4,458,000							4,458,000									4,458,000
Distributions to Common OP Units, LTIPs and non-controlling interests	(36,318,000)			(861,030,000)							(858,568,000)									(824,712,000)						(33,856,000)			(2,462,000)
Distributions to Preferred OP Units				(98,722,000)							(98,722,000)						(70,679,000)		(414,000)	(27,629,000)
Contributions from non-controlling interest holders	8,420,000									982,000																				982,000
Non-controlling interests retained in Cole Merger	982,000			24,766,000																									24,766,000
Partners' Capital Account, Units, Redeemed																										(916,423)
Partners' Capital Account, Redemptions				(8,420,000)							(8,420,000)															(8,420,000)
Non-controlling interests retained in CapLease and Cole Merger	24,766,000
Net loss	(1,010,912,000)			(1,010,912,000)												(1,010,758,000)				(977,185,000)						(33,573,000)			(154,000)
Other comprehensive loss	(4,938,000)			(4,938,000)							(4,938,000)									(4,768,000)						(170,000)
Related party expenses		203,558,000	2,150,000
Beginning balance at Dec. 31, 2014				$ 9,382,330,000							$ 9,358,631,000						$ 996,987,000		$ 3,375,000	$ 8,157,167,000						$ 201,102,000			$ 23,699,000
Units, outstanding, ending balance at Dec. 31, 2014																	42,834,138		86,874	905,544,559						23,763,797