Supplemental Cash Flow Information (Tables)
 9 Months Ended
Sep. 30, 2014
Supplemental Cash Flow Elements [Abstract]  
Schedule of Cash Flow, Supplemental Disclosures
 
Nine Months Ended September 30,
 
2014
 
2013
Supplemental Disclosures of Non-Cash Investing and Financing Activities:
(in thousands)
Distributions declared and unpaid
$
(66,259
)
 
$
(50,194
)
Real estate properties acquired under 1031 exchange
26,677

 
—

Real estate properties sold under 1031 exchange
(5,893
)
 
—

Gross equity component of Convertible Notes
(56,740
)
 
—

Net assets acquired in Merger in exchange for common stock
—

 
1,735,682

Common stock registered in exchange for net assets acquired
—

 
(2,025,736
)
Reduction of debt included in consideration on sale of certain real estate properties
5,001

 
149,156

Reduction of debt, net of assets surrendered to lender
—

 
1,069

Accrued interest capitalized to principal (1)
997

 
—

Accrued performance share dividend rights
(420
)
 
(73
)
Accrued deferred financing costs
—

 
(1,057
)
(1) Accrued and overdue interest on certain CMBS notes that have been intentionally placed in default.