Consolidated Statements Of Cash Flows (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
OPERATING ACTIVITIES
Net income	$ 14,051	$ 6,363
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred rent revenue and amortization of lease intangibles	(731)	361
Depreciation and amortization	26,767	14,739
Amortization of debt issuance costs and debt fair value adjustments	1,895	317
Early extinguishment of debt	25,867
Loan transfer and consent fees	9,019
Gain on acquisition of controlling interests	(46,371)	(4,297)
Stock-based compensation expense	1,190
Loss from real estate joint ventures	188	2,890
Distribution of earnings from real estate joint ventures		3,354
Other, net	935	254
Changes in operating assets and liabilities
Change in restricted cash	(211)	(47)
Change in accounts receivable	(1,510)	944
Change in prepaid expenses and other assets	112	653
Change in accounts payable and accrued expenses	(1,467)	(488)
Change in security deposits and other liabilities	(1,027)	(35)
Net cash provided by operating activities	28,707	25,008
INVESTING ACTIVITIES
Acquisition of real estate, net of cash acquired	(128,877)	(19,718)
Deposit on property acquisition	(91,600)
Capital expenditures	(2,814)	(2,351)
Change in restricted cash	(1,359)	16
Cash acquired from acquisition of controlling interests in real estate joint ventures	15,222
Leasing commissions	(871)	(776)
Purchase of marketable securities	(33,103)
Maturity of marketable securities	1,710
Distribution of capital from real estate joint ventures		10,607
Issuance of notes receivable to affiliate		(800)
Net cash used in investing activities	(241,692)	(13,022)
FINANCING ACTIVITIES
Issuance of secured notes payable	84,500	7,500
Repayment of secured notes payable	(262,003)	(9,053)
Defeasance costs on repayment of secured notes payable	(24,345)
Loan transfer and consent fees paid	(8,350)
Issuance of unsecured notes payable		23,000
Repayment of unsecured notes payable	(38,013)	(2,382)
Repayment of notes payable to affiliates	(19,279)	(1,171)
Debt issuance costs	(2,961)	(365)
Proceeds from issuance of common stock, net	596,541
Proceeds from private placement of common units	5,410
Dividends paid to common stock and unitholders	(21,898)
Payments to nonaccredited investors	(6,075)
Distributions to Predecessor's controlling and non-controlling interests	(39,960)	(22,112)
Net cash provided by (used in) financing activities	263,567	(4,583)
Net increase in cash and cash equivalents	50,582	7,403
Cash and cash equivalents, beginning of period	41,953	24,189
Cash and cash equivalents, end of period	$ 92,535	$ 31,592