CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Operating real estate [Abstract]
Land	$ 330,612	$ 283,299
Building and improvements	1,112,649	950,980
Construction in progress	14,462	7,321
Gross operating real estate	1,457,723	1,241,600
Less: accumulated depreciation	195,486	179,155
Net operating real estate	1,262,237	1,062,445
Real estate under development	223,634	219,645
Notes receivable, net	88,712	59,989
Investments in and advances to unconsolidated affiliates	75,495	84,568
Cash and cash equivalents	66,463	89,812
Cash in escrow	19,690	20,969
Rents receivable, net	28,071	26,170
Deferred charges, net	28,681	25,605
Acquired lease intangibles, net	27,028	26,721
Prepaid expenses and other assets	32,779	26,621
Accounts receivable from related party	1,474	1,375
Assets of discontinued operations	0	9,399
Total assets	1,854,264	1,653,319
LIABILITIES
Mortgage notes payable	853,924	779,650
Convertible notes payable	930	930
Distributions in excess of income from, and investments in, unconsolidated affiliates	22,229	21,710
Accounts payable and accrued expenses	37,763	39,459
Dividends and distributions payable	8,483	7,914
Acquired lease and other intangibles, net	9,087	5,462
Other liabilities	22,382	19,881
Liabilities of discontinued operations	0	9,004
Total liabilities	954,798	884,010
Shareholders’ equity
Common shares, $.001 par value, authorized 100,000,000 shares; issued and outstanding 45,703,685 and 42,586,376 shares, respectively	46	43
Additional paid-in capital	415,965	348,667
Accumulated other comprehensive loss	(4,484)	(3,913)
Retained earnings	34,161	39,317
Total shareholders’ equity	445,688	384,114
Noncontrolling interests	453,778	385,195
Total equity	899,466	769,309
Total liabilities and equity	$ 1,854,264	$ 1,653,319