Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:
Net income	$ 13,236	$ 2,174
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	56,796	41,846
Amortization of above market lease	(277)	56
Provision for loss on property held for sale of $14,300 less applicable income tax		14,300
Equity in (earnings) losses of non-consolidated REITs	814	(1,061)
Distributions from non-consolidated REITs		1,246
Increase (decrease) in bad debt reserve	(1,220)	105
Changes in operating assets and liabilities:
Restricted cash	(48)	(53)
Tenant rent receivables, net	(3,060)	173
Straight-line rents, net	(3,920)	(3,498)
Lease acquisition costs	(820)	(2,235)
Prepaid expenses and other assets, net	(1,845)	(1,278)
Accounts payable and accrued expenses	6,860	(25)
Accrued compensation	(108)	(28)
Tenant security deposits	1,402	273
Payment of deferred leasing commissions	(7,532)	(2,425)
Net cash provided by operating activities	60,278	49,570
Cash flows from investing activities:
Purchase of real estate assets, office computers and furniture	(468,893)	(49,209)
Acquired real estate leases	(100,143)	(14,376)
Investments in non-consolidated REITs	4,858	(1)
Distributions in excess of earnings from non-consolidated REITs	81	1,487
Investment in related party mortgage loan receivable	(4,950)	(73,920)
Repayment of related party mortgage loan receivable		106,200
Net cash used in investing activities	(569,047)	(29,819)
Cash flows from financing activities:
Proceeds from stock offering	241,500
Offering costs	(10,789)
Distributions to stockholders	(50,552)	(47,274)
Borrowings under bank note payable	160,000	160,000
Repayment of bank note payable	(45,250)	(527,000)
Borrowing from term loan payable	220,000	400,000
Deferred financing costs	(1,868)	(5,328)
Net cash provided by (used in) financing activities	513,041	(19,602)
Net increase in cash and cash equivalents	4,272	149
Cash and cash equivalents, beginning of period	21,267	23,813
Cash and cash equivalents, end of period	25,539	23,962
Non-cash investing and financing activities:
Accrued costs for purchase of real estate assets	$ 3,617	$ 774