CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 123,995	$ 30,983
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	27,561	23,171
Amortization of financing costs	1,546	1,468
Gain on disposition of properties	(88,984)	(13,508)
Impairment of asset	5,000	0
Share compensation expense	3,746	3,833
Equity in earnings of unconsolidated affiliates	(9,999)	(4,459)
Gain on disposition of property of unconsolidated affiliates	(17,105)	0
Distributions of operating income from unconsolidated affiliates	10,035	5,550
Other, net	(2,645)	(1,737)
Changes in assets and liabilities
Cash in escrow	(11,505)	(5,691)
Rents receivable, net	(2,401)	(834)
Prepaid expenses and other assets	7,928	7,570
Accounts payable and accrued expenses	3,828	597
Other liabilities	2,751	(941)
Net cash provided by operating activities	53,751	46,002
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisition of real estate	(273,071)	(107,600)
Redevelopment and property improvement costs	(105,245)	(68,311)
Deferred leasing costs	(4,274)	(1,224)
Investments in and advances to unconsolidated affiliates	(6,505)	(28,100)
Return of capital from unconsolidated affiliates	5,660	24,326
Proceeds from disposition of property of unconsolidated affiliates	25,604	0
Proceeds from notes receivable	0	11,990
Issuance of notes receivable	(48,200)	(19,362)
Proceeds from sale of properties, net	197,882	19,158
Net cash used in investing activities	(208,149)	(169,123)
CASH FLOWS FROM FINANCING ACTIVITIES
Principal payments on mortgage and other notes	(188,166)	(132,452)
Proceeds received from mortgage and other notes	268,761	189,700
Loan proceeds held as restricted cash	30,324	38,513
Deferred financing and other costs	(2,746)	(2,033)
Capital contributions from noncontrolling interests	30,134	31,046
Distributions to noncontrolling interests	(64,648)	(56,730)
Dividends paid to Common Shareholders	(53,270)	(25,814)
Proceeds from issuance of Common Shares, net of issuance costs of $522 and $1,495, respectively	21,080	88,499
Net cash provided by financing activities	41,469	130,729
(Decrease) increase in cash and cash equivalents	(112,929)	7,608
Cash and cash equivalents, beginning of period	217,580	79,189
Cash and cash equivalents, end of period	104,651	86,797
Supplemental disclosure of cash flow information
Cash paid during the period for interest, net of capitalized interest of $7,465 and $6,095, respectively	22,735	23,486
Cash paid for income taxes	1,573	316
Supplemental disclosure of non-cash investing activities
Acquisition of real estate through assumption of debt	90,765	0
Disposition of real estate through cancellation of debt	0	(22,865)
Acquisition of real estate through conversion of notes receivable	6,886	38,000
Acquisition of real estate through assumption of restricted cash	28,192	0
Disposition of air rights through issuance of notes receivable	$ (29,793)	$ 0