Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Current Fiscal Year End Date	--12-31
Transfer from investment in unconsolidated joint ventures to projects under development	$ 5,880	$ 0
Transfer from operating properties to operating properties and related assets held for sale	203,735	50,491
Transfer from operating properties to liabilities of real estate assets held for sale	106,135	2,843
Transfer from projects under development to operating properties	0	93,019
Change in Payments to Acquire and Develop Real Estate and Tenant Asset Expenditures	11,384	(4,118)
Net income	(42,218)	(68,774)
Adjustments to reconcile net loss to net cash provided by operating activities:
Gain on sale of investment properties, including discontinued operations	13,944	37,123
Depreciation and amortization, including discontinued operations	96,192	103,614
Amortization of deferred financing costs	1,063	1,073
Net amortization of stock options and restricted stock	1,571	1,104
Effect of certain non-cash adjustments to rental revenues	(15,966)	(21,907)
Income Loss from Unconsolidated Joint Ventures	5,144	7,087
Operating distributions from unconsolidated joint ventures	5,893	5,570
Changes in other operating assets and liabilities:
Change in other receivables and other assets, net	1,824	(6,452)
Change in operating liabilities	5,544	(4,526)
Net cash provided by operating activities	119,251	103,040
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from investment property sales	21,088	136,498
Property acquisition, development, and tenant asset expenditures	(122,357)	(151,384)
Investment in unconsolidated joint ventures	(24,918)	(7,486)
Distributions from unconsolidated joint ventures	4,150	6,318
Change in notes receivable and other assets	(5,699)	1,149
Change in restricted cash	(3,667)	293
Net cash used in investing activities	(131,403)	(14,612)
Transfer from land held to projects under development	8,099	0
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from credit facility	182,800	269,000
Repayment of credit facility	(274,800)	(275,200)
Proceeds from Notes Payable	270,000	0
Repayment of notes payable	(7,239)	(6,574)
Payments of Loan Costs	(1,604)	0
Proceeds from the Issuance of Common Stock, including Option Exercises	0	8
Proceeds from (Payments to) Noncontrolling Interests	2,525	0
Payments for repurchase of common stock	13,743	18,320
Common dividends paid	(50,549)	(52,011)
Net cash provided by financing activities	107,390	(83,097)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	95,238	5,331
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	2,003	0
CASH AND CASH EQUIVALENTS AT END OF PERIOD	97,241	5,331
Interest paid, net of amounts capitalized	$ 20,792	$ 22,579