CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 19,115	$ 11,179
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	11,587	10,628
Amortization of financing costs	688	734
Gain on disposition of property	(12,387)	0
Share-based compensation expense	2,087	1,411
Equity in earnings of unconsolidated affiliates	(3,029)	(2,250)
Distributions of operating income from unconsolidated affiliates	2,562	1,208
Other, net	(648)	(1,476)
Changes in assets and liabilities
Cash in escrow	(141)	(274)
Rents receivable, net	(486)	(878)
Prepaid expenses and other assets	(23)	(15,021)
Accounts payable and accrued expenses	2,507	(739)
Other liabilities	345	(289)
Net cash provided by operating activities	22,177	4,233
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisition of real estate	(90,500)	(86,600)
Redevelopment and property improvement costs	(37,505)	(17,941)
Deferred leasing costs	(369)	(2,220)
Investments in and advances to unconsolidated affiliates	(21,568)	(2)
Return of capital from unconsolidated affiliates	22,491	482
Consolidation of previously unconsolidated investment	0	1,864
Proceeds from notes receivable	7,156	5,529
Net cash used in investing activities	(120,295)	(98,888)
CASH FLOWS FROM FINANCING ACTIVITIES
Principal payments on mortgage notes	(38,972)	(47,136)
Proceeds received from mortgage notes	130,700	254,000
Loan proceeds held as restricted cash	15,058	(151,596)
Deferred financing and other costs	(921)	(9,998)
Capital contributions from noncontrolling interests	8,712	0
Distributions to noncontrolling interests	(33,577)	(3,098)
Dividends paid to Common Shareholders	(12,798)	(9,417)
Proceeds from issuance of Common Shares, net of issuance costs of $429 and $843, respectively	23,519	51,840
Other employee and trustee stock compensation, net	0	78
Net cash provided by financing activities	91,721	84,673
Decrease in cash and cash equivalents	(6,397)	(9,982)
Cash and cash equivalents, beginning of period	79,189	91,813
Cash and cash equivalents, end of period	72,792
Supplemental disclosure of cash flow information
Cash paid during the period for interest, net of capitalized interest of $2,892 and $1,664, respectively	12,173	5,858
Cash paid for income taxes	281	12
Supplemental disclosure of non-cash investing activities
Disposition of real estate through cancellation of debt	(22,865)	0
Acquisition of real estate through conversion of notes receivable	0	18,500
Consolidation of previously unconsolidated investment
Real estate, net	0	(118,484)
Mortgage notes payable	0	166,200
Distributions in excess of income from, and investments in, unconsolidated affiliates	0	(10,298)
Other assets and liabilities	0	(1,605)
Noncontrolling interest	0	(33,949)
Cash included in consolidation of previously unconsolidated investment	$ 0	$ 1,864