Restatement of Previously Reported Financial Information - Narrative (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended				12 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013		Dec. 31, 2013
Merger and other one-time transactions	$ 13,998	[1]	$ 26,948	[1],[2]	$ 34,616	[1]	$ 74,541	[1],[2]
Management fees to affiliates	0		0	[2]	13,888		12,493	[2]
Equity based compensation			0		32,805		13,981	[2]
Impairment of real estate	2,299		2,074	[2]	3,855		2,074	[2]	3,300
Net loss attributable to non-controlling interests	(7,649)		(3,153)	[2]	(23,923)		(7,882)	[2]
Due to affiliates	2,757		6,107		2,757		6,107		103,434	[2]
Error Corrections [Member]
Merger and other one-time transactions			0				(23)
Management fees to affiliates			0				12,493
Equity based compensation			(7,180)				68
Number of impaired properties							1
Impairment of real estate			2,074				2,074
Net loss attributable to non-controlling interests			(2,928)				(6,750)
Due to affiliates			6,107				6,107
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
Error Corrections [Member] | Expenses Improperly Categorized As Merger Related [Member] | General and Administrative Expense [Member]
Merger and other one-time transactions			300				6,100
Error Corrections [Member] | Costs Expenses Which Should Have Been Capitalized As Deferred Financing Costs [Member]
Merger and other one-time transactions			1,200				2,200
Error Corrections [Member] | Controlling Interest Transfer Tax Liability [Member]
Merger and other one-time transactions			0				1,100
Error Corrections [Member] | Operating Fees to Affiliates Improperly Recorded For Future Period [Member]
Management fees to affiliates			0				500
Error Corrections [Member] | Furniture, Fixtures and Equipment Capitalized Not Received [Member]
Merger and other one-time transactions			0				4,100
Error Corrections [Member] | Furniture, Fixtures and Equipment Expenses Not Received [Member]
Merger and other one-time transactions			0				1,700
Error Corrections [Member] | Expenses Reclassified to General and Administrative Expense [Member]
Equity based compensation			7,200				11,500
Error Corrections [Member] | Expenses Incorrectly Recorded In Future Period [Member]
Merger and other one-time transactions			$ 167				$ 254

[1] Includes $1.7 million to affiliates for the nine months ended September 30, 2014, and $10.1 million and $36.9 million to affiliates for the three and nine months ended September 30, 2013, respectively.

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