Consolidated Statements Of Cash Flows (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
OPERATING ACTIVITIES
Net income	$ 18,669	$ 5,170
Results from discontinued operations	(5,100)	(232)
Income (loss) from continuing operations	13,569	4,938
Adjustments to reconcile income from continuing operations to net cash provided by operating activities:
Deferred rent revenue and amortization of lease intangibles	(1,639)	1,099
Depreciation and amortization	41,916	26,714
Amortization of debt issuance costs and debt fair value adjustments	2,924	418
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	1,902
Loss from real estate joint ventures	188	3,431
Distribution of earnings from real estate joint ventures		3,812
Other, net	1,586	497
Changes in operating assets and liabilities
Change in restricted cash	(848)	(730)
Change in accounts receivable	(3,262)	(155)
Change in prepaid expenses and other assets	(590)	(1,725)
Change in accounts payable and accrued expenses	5,689	2,272
Change in security deposits and other liabilities	125	265
Net cash provided by operating activities of continuing operations	50,075	36,539
Net cash provided by operating activities of discontinued operations	1,748	1,055
Net cash provided by operating activities	51,823	37,594
INVESTING ACTIVITIES
Acquisition of real estate, net of cash acquired	(227,309)	(19,762)
Capital expenditures	(5,871)	(3,355)
Change in restricted cash	(1,653)	16
Cash acquired from acquisition of controlling interests in real estate joint ventures	15,222
Leasing commissions	(1,772)	(1,650)
Purchase of marketable securities	(33,103)
Maturity of marketable securities	3,502
Distribution of capital from real estate joint ventures		10,607
Issuance of notes receivable to affiliate		(800)
Net cash used in investing activities of continuing operations	(250,984)	(14,944)
Net cash provided by (used in) investing activities of discontinued operations	30,078	(444)
Net cash used in investing activities	(220,906)	(15,388)
FINANCING ACTIVITIES
Issuance of secured notes payable	84,500	7,500
Repayment of secured notes payable	(263,106)	(10,647)
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)	(4,488)
Repayment of notes payable to affiliates	(19,279)	(1,778)
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	(34,010)
Payments to nonaccredited investors	(6,075)
Contributions from Predecessor's controlling interests		1,147
Distributions to Predecessor's controlling and non-controlling interests	(39,960)	(23,401)
Net cash provided by (used in) financing activities	250,352	(9,032)
Net increase in cash and cash equivalents	81,269	13,174
Cash and cash equivalents, beginning of period	41,953	24,189
Cash and cash equivalents, end of period	$ 123,222	$ 37,363