CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net income	$ 102,554	$ 68,972	$ 161,673
Adjustments to reconcile net income to net cash provided by operating activities:
Loss on extinguishment of debt	351	0	0
Loss (gain) on sale or write down of assets, net	11,909	31,825	(42,446)
Depreciation and amortization	337,667	334,682	341,275
Amortization of net premium on mortgage notes payable	(929)	(929)	(3,277)
Amortization of share and unit-based plans	12,032	27,367	30,799
Straight-line rent and amortization of above and below market leases	(14,009)	(13,701)	(9,561)
Provision for doubtful accounts	7,682	4,663	4,314
Income tax expense (benefit)	1,589	(3,604)	15,594
Equity in income of unconsolidated joint ventures	(48,508)	(71,773)	(85,546)
Change in fair value of financing arrangement obligation	(76,640)	(15,225)	0
Co-venture expense	0	0	13,629
Distributions of income from unconsolidated joint ventures	934	1,959	463
Changes in assets and liabilities, net of acquisitions and dispositions:
Tenant and other receivables	(9,929)	(13,912)	(6,508)
Other assets	(9,553)	8,439	(4,414)
Due from affiliates	13,894	(3,019)	(13,982)
Accounts payable and accrued expenses	(237)	(2,159)	(5,822)
Other accrued liabilities	26,350	(9,274)	(9,802)
Net cash provided by operating activities	355,157	344,311	386,389
Cash flows from investing activities:
Development, redevelopment, expansion and renovation of properties	(166,791)	(181,089)	(160,343)
Property improvements	(21,114)	(56,142)	(41,807)
Proceeds from collection of notes receivable	68,819	1,043	7,073
Deferred leasing costs	(11,906)	(28,769)	(31,655)
Distributions from unconsolidated joint ventures	266,349	536,643	267,964
Contributions to unconsolidated joint ventures	(252,903)	(181,239)	(117,538)
Proceeds from sale of assets	5,520	85,876	255,294
Net cash (used in) provided by investing activities	(112,026)	176,323	178,988
Cash flows from financing activities:
Proceeds from mortgages, bank and other notes payable	1,796,000	415,000	1,430,000
Payments on mortgages, bank and other notes payable	(1,567,089)	(469,814)	(1,219,728)
Deferred financing costs	(7,759)	(275)	(8,500)
Payment of finance deposits, net of refunds received	0	(6,542)	0
Payment on finance arrangement obligation	(27,945)	0	0
Payments on finance leases	(1,472)
Proceeds from share and unit-based plans	1,519	1,570	1,868
Stock repurchases	0	0	(221,428)
Redemption of noncontrolling interests	(67)	(759)	(920)
Contributions from noncontrolling interests	3,131	16	30
Dividends and distributions	(474,534)	(453,634)	(443,839)
Distributions to co-venture partner	0	0	(103,752)
Net cash used in financing activities	(278,216)	(514,438)	(566,269)
Net (decrease) increase in cash, cash equivalents and restricted cash	(35,085)	6,196	(892)
Cash, cash equivalents and restricted cash at beginning of year	149,301	143,105	143,997
Cash, cash equivalents, and restricted cash at end of year	114,216	149,301	143,105
Supplemental cash flow information:
Cash payments for interest, net of amounts capitalized	210,026	192,254	168,493
Non-cash investing and financing activities:
Accrued development costs included in accounts payable and accrued expenses and other accrued liabilities	32,452	50,006	43,726
Conversion of Operating Partnership Units to common stock	1,005	75	16,797
Lease liabilities recorded in connection with right-of-use assets	109,299
Mortgage notes payable assumed by buyer in exchange for investment in unconsolidated joint venture	0	139,249	0
Disposition of property in exchange for investments in unconsolidated joint ventures	$ 0	$ 25,177	$ 0