CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net income	$ 78,727	$ 76,373
Adjustments to reconcile net income to net cash provided by operating activities:
(Gain) loss on extinguishment of debt, net	(609)	405
Loss on sale or write down of assets, net	7,078	1,504
Gain on remeasurement of assets	(22,089)	0
Depreciation and amortization	362,681	273,765
Amortization of net premium on mortgage notes payable	(17,891)	(4,056)
Amortization of share and unit-based plans	23,629	25,217
Straight-line rent adjustment	(4,512)	(4,440)
Amortization of above and below-market leases	(13,905)	(5,730)
Provision for doubtful accounts	3,766	3,452
Income tax benefit	(2,077)	(3,759)
Equity in income of unconsolidated joint ventures	(28,185)	(44,607)
Distributions of income from unconsolidated joint ventures	2,700	886
Co-venture expense	7,897	6,175
Changes in assets and liabilities, net of acquisitions and dispositions:
Tenant and other receivables	7,379	(1,416)
Other assets	5,232	(7,011)
Due from affiliates	1,756	(1,290)
Accounts payable and accrued expenses	2,770	780
Other accrued liabilities	(696)	(19,342)
Net cash provided by operating activities	413,651	296,906
Cash flows from investing activities:
Acquisitions of property	(26,250)	(15,233)
Development, redevelopment, expansion and renovation of properties	(208,485)	(129,750)
Property improvements	(34,541)	(32,375)
Proceeds from notes receivable	1,368	3,169
Deferred leasing costs	(24,797)	(19,402)
Distributions from unconsolidated joint ventures	66,643	55,688
Contributions to unconsolidated joint ventures	(336,806)	(257,963)
Loans to unconsolidated joint ventures, net	0	(605)
Proceeds from sale of assets	11,655	51,350
Restricted cash	(546)	2,722
Net cash used in investing activities	(551,759)	(342,399)
Cash flows from financing activities:
Proceeds from mortgages, bank and other notes payable	1,800,671	580,967
Payments on mortgages, bank and other notes payable	(1,262,628)	(229,099)
Deferred financing costs	(5,160)	(1,126)
Payment of finance deposits	(38,567)	0
Proceeds from share and unit-based plans	745	645
Redemption of noncontrolling interests	(221)	(236)
Contribution from noncontrolling interests	23	0
Purchase of noncontrolling interest	(1,593)	0
Payment of contingent consideration	0	(18,667)
Dividends and distributions	(332,402)	(286,206)
Distributions to co-venture partner	(14,658)	(12,021)
Net cash provided by financing activities	146,210	34,257
Net increase (decrease) in cash and cash equivalents	8,102	(11,236)
Cash and cash equivalents, beginning of period	84,907	69,715
Cash and cash equivalents, end of period	93,009	58,479
Supplemental cash flow information:
Cash payments for interest, net of amounts capitalized	178,263	136,233
Non-cash investing and financing transactions:
Accrued development costs included in accounts payable and accrued expenses and other accrued liabilities	39,717	50,817
Assumption of mortgage note payable from unconsolidated joint venture	50,000	0
Mortgage note payable settled by deed-in-lieu of foreclosure	34,149	0
Acquisition of property in exchange for investment in unconsolidated joint venture	76,250	15,767
Notes receivable issued in connection with sale of property	0	9,603
Conversion of Operating Partnership Units to common stock	$ 1,559	$ 984