CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net income	$ 42,413	$ 37,629
Adjustments to reconcile net income to net cash provided by operating activities:
(Gain) loss on extinguishment of debt, net	(636)	358
Loss on sale or write down of assets, net	3,736	11,065
Gain on remeasurement of assets	(22,089)	0
Depreciation and amortization	243,526	180,374
Amortization of net premium on mortgage notes payable	(12,382)	(2,704)
Amortization of share and unit-based plans	19,207	20,839
Straight-line rent adjustment	(1,663)	(3,098)
Amortization of above and below-market leases	(9,784)	(2,719)
Provision for doubtful accounts	3,156	3,430
Income tax benefit	(1,218)	(3,070)
Equity in income of unconsolidated joint ventures	(17,368)	(27,672)
Distributions of income from unconsolidated joint ventures	0	177
Co-venture expense	4,943	4,032
Changes in assets and liabilities, net of acquisitions and dispositions:
Tenant and other receivables	10,991	10,966
Other assets	(4,334)	487
Due from affiliates	2,225	940
Accounts payable and accrued expenses	7,756	(15,085)
Other accrued liabilities	4,400	(25,377)
Net cash provided by operating activities	272,879	190,572
Cash flows from investing activities:
Acquisitions of property	(26,250)	(15,233)
Development, redevelopment, expansion and renovation of properties	(132,212)	(82,457)
Property improvements	(16,851)	(14,597)
Proceeds from notes receivable	909	0
Deferred leasing costs	(18,128)	(13,772)
Distributions from unconsolidated joint ventures	46,326	33,382
Contributions to unconsolidated joint ventures	(312,367)	(108,316)
Loans to unconsolidated joint ventures, net	0	(640)
Proceeds from sale of assets	1,440	25,414
Restricted cash	(987)	1,420
Net cash used in investing activities	(458,120)	(174,799)
Cash flows from financing activities:
Proceeds from mortgages, bank and other notes payable	1,565,674	301,655
Payments on mortgages, bank and other notes payable	(1,120,090)	(121,571)
Deferred financing costs	(5,060)	(603)
Proceeds from share and unit-based plans	745	645
Redemption of noncontrolling interests	(189)	(221)
Contribution from noncontrolling interests	23	0
Payment of contingent consideration	0	(9,000)
Dividends and distributions	(221,911)	(191,200)
Distributions to co-venture partner	(8,532)	(8,693)
Net cash provided by (used in) financing activities	210,660	(28,988)
Net increase (decrease) in cash and cash equivalents	25,419	(13,215)
Cash and cash equivalents, beginning of period	84,907	69,715
Cash and cash equivalents, end of period	110,326	56,500
Supplemental cash flow information:
Cash payments for interest, net of amounts capitalized	119,291	97,083
Non-cash investing and financing transactions:
Accrued development costs included in accounts payable and accrued expenses and other accrued liabilities	43,085	24,933
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