Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Real estate assets:
Land	$ 185,479	$ 141,545
Buildings and improvements	1,599,519	1,172,928
Fixtures and equipment	985	904
Total real estate assets, gross	1,785,983	1,315,377
Less accumulated depreciation	210,293	180,589
Real estate assets, net	1,575,690	1,134,788
Acquired real estate leases, less accumulated amortization of $60,589 and $39,203, respectively	194,893	108,203
Investment in non-consolidated REITs	81,065	81,960
Asset held for sale	10,143	10,575
Cash and cash equivalents	25,539	21,267
Restricted cash	623	575
Tenant rent receivables, less allowance for doubtful accounts of $80 and $1,300, respectively	6,029	1,749
Straight-line rent receivable, less allowance for doubtful accounts of $135 and $135, respectively	40,086	35,374
Related party mortgage loan receivables	98,846	93,896
Prepaid expenses and other assets	11,303	13,761
Other assets: derivative asset	4,365
Office computers and furniture, net of accumulated depreciation of $694 and $584, respectively	543	544
Deferred leasing commissions, net of accumulated amortization of $14,402 and $11,812, respectively	27,504	23,376
Total assets	2,076,629	1,526,068
Liabilities:
Bank note payable	331,500	216,750
Term loans payable	620,000	400,000
Accounts payable and accrued expenses	39,907	31,122
Accrued compensation	2,432	2,540
Tenant security deposits	3,891	2,489
Other liabilities: derivative liability	4,579	1,219
Acquired unfavorable real estate leases, less accumulated amortization of $5,936 and $4,618, respectively	15,171	7,199
Total liabilities	1,017,480	661,319
Commitments and contingencies
Stockholders' Equity:
Preferred stock, $.0001 par value, 20,000,000 shares authorized, none issued or outstanding
Common stock, $.0001 par value, 180,000,000 shares authorized, 100,187,405 and 82,937,405 shares issued and outstanding, respectively	10	8
Additional paid-in capital	1,273,585	1,042,876
Accumulated other comprehensive loss	(214)	(1,219)
Accumulated distributions in excess of accumulated earnings	(214,232)	(176,916)
Total stockholders' equity	1,059,149	864,749
Total liabilities and stockholders' equity	$ 2,076,629	$ 1,526,068