Restatement of Previously Reported Financial Information - Narrative (Detail) (USD $)	3 Months Ended				6 Months Ended				12 Months Ended	3 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013		Dec. 31, 2013	Mar. 31, 2014
Merger and other one-time transactions	$ 7,201,000	[1],[2]	$ 37,266,000	[1],[2]	$ 20,618,000	[1],[2]	$ 47,593,000	[1],[2]
Equity based compensation	0	[3]	0	[3]	27,264,000	[1]	6,791,000	[1]
Management fees to affiliates					13,888,000		12,493,000
Net loss attributable to non-controlling interests	(1,878,000)	[1]	(2,672,000)	[1]	(16,274,000)	[1]	(4,729,000)	[1]
General and administrative	40,012,000	[1],[4]	6,283,000	[1],[4]	96,504,000	[1],[4]	14,055,000	[1],[4]
Unauthorized Equity Awards, Transition From External To Internal Management [Member]
Equity based compensation					120,000,000
Error Corrections [Member]
Merger and other one-time transactions	(1,252,000)		(23,000)		281,000		(23,000)
Equity based compensation	(9,338,000)	[3]	(3,458,000)	[3]			(4,339,000)
Management fees to affiliates					13,888,000		12,493,000
Net loss attributable to non-controlling interests	1,059,000		(2,197,000)		(1,363,000)		(3,822,000)
General and administrative	18,161,000		3,899,000		47,845,000		10,217,000
Accrued bonuses	5,800,000				5,800,000
Income tax expense	2,200,000				900,000
Loss on held for sale assets					(1,800,000)
Error Corrections [Member] | Additional [Member]
Merger and other one-time transactions	1,200,000
Error Corrections [Member] | Operating Fees To Affiliates Improperly Classified As Merger And Other Non-Routine Transactions [Member]
Merger and other one-time transactions			0				13,000,000
Error Corrections [Member] | Controlling Interest Transfer Tax Liability [Member]
Merger and other one-time transactions	1,100,000		0		4,000,000				8,900,000
Error Corrections [Member] | Controlling Interest Transfer Tax Liability [Member] | Adjustment [Member]
Merger and other one-time transactions	0
Error Corrections [Member] | Costs Expenses Which Should Have Been Capitalized As Deferred Financing Costs [Member]
Merger and other one-time transactions	800,000		0		21,300,000		1,000,000
Error Corrections [Member] | Capitalization Of Deferred Financing, Additional Interest Expense [Member]
Merger and other one-time transactions	1,300,000		0		10,000,000		600,000
Error Corrections [Member] | Expenses Improperly Categorized As Merger Related [Member] | General and Administrative Expense [Member]
Merger and other one-time transactions	5,200,000		400,000		14,500,000		5,900,000
Error Corrections [Member] | Expenses Improperly Categorized As Merger Related [Member] | Management Fee Expenses [Member]
Merger and other one-time transactions	0				13,800,000
Error Corrections [Member] | Expenses Incorrectly Recorded In Future Period [Member]
Merger and other one-time transactions	700,000		87,000		700,000		87,000
Error Corrections [Member] | Operating Fees to Affiliates Improperly Recorded For Future Period [Member]
Management fees to affiliates			0				500,000
Error Corrections [Member] | Expenses Recorded In Incorrect Period [Member]
Merger and other one-time transactions										16,100,000
General and administrative	900,000				2,500,000
Error Corrections [Member] | Adjustment [Member]
Merger and other one-time transactions	1,600,000				(13,400,000)				14,500,000
Error Corrections [Member] | Capitalization Of Deferred Financing, Extinguishment of Debt Expense [Member]
Merger and other one-time transactions	900,000				3,200,000
Error Corrections [Member] | Loss on Disposition of Properties Improperly Classified As Merger And Other Non-Routine Transactions [Member]
Merger and other one-time transactions	1,400,000				1,400,000
Error Corrections [Member] | Furniture, Fixtures and Equipment Capitalized Not Received [Member]
Merger and other one-time transactions	0		0		2,100,000		4,100,000
Error Corrections [Member] | Furniture, Fixtures and Equipment Expenses Not Received [Member]
Merger and other one-time transactions			0				1,700,000
Error Corrections [Member] | Acquisition Related Expense Recorded Twice [Member]
Merger and other one-time transactions	1,800,000				1,800,000
Error Corrections [Member] | Equity-Based Compensation Expense Reported Within General And Administrative Expenses [Member]
Equity based compensation	9,300,000				31,800,000
Error Corrections [Member] | Incorrectly Recorded Interest Expense Credit [Member]
Interest expense, net	1,100,000				1,100,000
Error Corrections [Member] | Debt Extinguishment Costs, Should be Reported Separately Within Statement Of Operations [Member]
Interest expense, net	5,000,000				12,800,000
Error Corrections [Member] | Expenses Improperly Categorized As General And Administrative [Member]
Equity based compensation	1,200,000				2,100,000
General and administrative	500,000				500,000					1,000,000
Error Corrections [Member] | Unauthorized Equity Awards, Transition From External To Internal Management [Member]
Equity based compensation	2,200,000				8,400,000
Error Corrections [Member] | Equity Distributions Improperly Recorded [Member]
Equity based compensation					6,300,000
Error Corrections [Member] | Understatement Of Depreciation Expense [Member]
Depreciation and amortization										2,300,000
Error Corrections [Member] | Overstatement of Depreciation Expense [Member]
Depreciation and amortization	2,300,000
Error Corrections [Member] | Improperly Recorded Depreciation Expense For Real Estate Properties [Member]
Depreciation and amortization	6,000,000
Error Corrections [Member] | Incorrectly Adjusted Purchase Price Allocation For Disposed Properties [Member]
Loss on disposition of properties, net	2,600,000				10,900,000
Error Corrections [Member] | Incorrectly Accounted For Disposal Of Real Estate [Member]
Loss on disposition of properties, net	2,200,000				9,200,000
Error Corrections [Member] | Incorrectly Recorded Ineffective Portion Of Hedge [Member]
Loss on derivative instruments, net	500,000				1,500,000
Error Corrections [Member] | Improperly Recorded Loss On Derivative Instruments [Member] | Interest Expense [Member]
Loss on derivative instruments, net	1,800,000				1,800,000
Error Corrections [Member] | Improperly Recorded Loss On Derivative Instruments [Member] | Interest Expense [Member] | Additional [Member]
Loss on derivative instruments, net					2,100,000
Error Corrections [Member] | Interest Rate Lock Incorrectly Recorded As Expense [Member]
Interest expense, net			0		3,900,000
Error Corrections [Member] | Incorrectly Recognized Dilutive Effect Of Restricted Stock [Member]
Weighted average shares of common stock outstanding	334,276				332,939
Error Corrections [Member] | Swap Underestimated [Member]
Interest expense, net	0				1,400,000
As Previously Reported [Member]
Merger and other one-time transactions	8,453,000		37,289,000		20,337,000		47,616,000
Equity based compensation	9,338,000	[3]	3,458,000	[3]
Management fees to affiliates							0
Net loss attributable to non-controlling interests	(2,937,000)		(475,000)		(14,911,000)		(907,000)
General and administrative	19,063,000		2,361,000		44,748,000		3,815,000
As Previously Reported [Member] | Unauthorized Equity Awards, Transition From External To Internal Management [Member]
Equity based compensation					218,100,000
As Previously Reported [Member] | Improperly Recorded Loss On Derivative Instruments [Member]
Loss on derivative instruments, net					$ 10,000,000

[1] For discussion on the restatement adjustments, see Note 2 - Restatement of Previously Issued Financial Statements.

[2] Includes $113,000 and $19.9 million to affiliates for the three months ended June 30, 2014 and 2013, respectively, and $1.7 million and $26.8 million to affiliates for the six months ended June 30, 2014 and 2013, respectively.

[3] As disclosed above, this line item caption has been reclassified into "general and administrative" in the accompanying consolidated statements of operations.

[4] Includes $437,000 and $4.1 million to affiliates for the three months ended June 30, 2014 and 2013, respectively, and $16.0 million and $9.3 million to affiliates for the six months ended June 30, 2014 and 2013, respectively.