Mortgage Note Payable (Schedule of Mortgage Notes Payable) (Detail) (USD $)	0 Months Ended	3 Months Ended		12 Months Ended
	Feb. 18, 2014	Mar. 31, 2014 Property		Dec. 31, 2013 Property		Mar. 31, 2013
Mortgage Loans on Real Estate [Line Items]
Outstanding Loan Amount		$ 4,234,074,000	[1]	$ 1,301,114,000	[1]	$ 265,118,000
Mortgages [Member]
Mortgage Loans on Real Estate [Line Items]
Encumbered Properties		697		177
Outstanding Loan Amount		4,128,384,000		1,258,661,000
Weighted Average Effective Interest Rate		4.83%	[2]	3.42%	[2]
Weighted Average Maturity	2 years 2 months 12 days	6 years 2 months 23 days	[3]	3 years 4 months 28 days	[3]
Long-term debt, defeased		722,300,000
Long-term debt, defeased, prepayments and swap breakage fee		29,000,000
Payment to settle interest rate swaps		10,100,000
Write off of deferred debt issuance cost		(19,600,000)
Mortgages [Member] | Adjustment [Member]
Mortgage Loans on Real Estate [Line Items]
Weighted Average Effective Interest Rate		5.16%
Mortgages [Member] | Minimum [Member]
Mortgage Loans on Real Estate [Line Items]
Effective interest rate		2.41%		1.83%
Mortgages [Member] | Maximum [Member]
Mortgage Loans on Real Estate [Line Items]
Effective interest rate		7.20%		6.28%
CapLease [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgages assumed in real estate acquisitions		137,400,000
Debt instrument, unamortized discount (premium), net		$ 106,300,000

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

[2] Mortgage notes payable primarily have fixed rates or are fixed by way of interest rate swap arrangements. Effective interest rates range from 2.41% to 7.20% at March 31, 2014 and 1.83% to 6.28% at December 31, 2013.

[3] Weighted average remaining years until maturity as of March 31, 2014 and December 31, 2013, respectively.