Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Net income	$ 57,725	$ (1,124)
Adjustments to reconcile net loss to net cash provided by operating activities:
Gain on sale of investment properties, including discontinued operations	(57,764)	(846)
Loss on extinguishment of debt	0	94
Impairment loss included in discontinued operations	0	12,233
Depreciation and amortization, including discontinued operations	27,113	27,006
Amortization of deferred financing costs	524	512
Amortization of stock options and restricted stock, net of forfeitures	987	1,210
Effect of certain non-cash adjustments to rental revenues	(2,673)	(2,108)
Income from unconsolidated joint ventures	(2,784)	(11,948)
Operating distributions from unconsolidated joint ventures	2,942	9,857
Land and multi-family cost of sales, net of closing costs paid	904	1,057
Payments to Acquire and Develop Land and Multi-Family Real Estate	0	(46)
Changes in other operating assets and liabilities:
Change in other receivables and other assets, net	(1,511)	(1,759)
Change in operating liabilities	(4,295)	1,092
Net cash provided by operating activities	21,168	35,230
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from investment property sales	116,006	63,236
Property acquisition, development and tenant asset expenditures	(410,807)	(18,558)
Investment in unconsolidated joint ventures	(98)	(6,235)
Distributions from unconsolidated joint ventures	54,116	25,188
Collection of notes receivable	681	821
Change in notes receivable and other assets	(1,930)	(1,866)
Change in restricted cash	(378)	12
Net cash provided by (used in) investing activities	(242,410)	62,598
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from credit facility	174,925	273,100
Repayment of credit facility	(123,925)	(430,850)
Proceeds from other notes payable	1,292	105,949
Repayment of notes payable	(75,722)	(26,620)
Payment of loan issuance costs	0	(3,419)
Proceeds from Issuance of Common Stock	165,100	0
Preferred Stock Redemption	(74,827)	0
Common dividends paid	(10,120)	(9,373)
Preferred dividends paid	(6,454)	(6,454)
Distributions to noncontrolling interests	(994)	(2,010)
Net cash provided by (used in) financing activities	49,275	(99,677)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(171,967)	(1,849)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	176,892	4,858
CASH AND CASH EQUIVALENTS AT END OF PERIOD	4,925	3,009
INTEREST PAID, NET OF AMOUNTS CAPITALIZED	9,719	11,853
Transfer from operating properties to operating properties and related assets held for sale	49,435	0
Transfer from projects under development to operating properties	25,629	0
Transfer from other assets to projects under development	$ 3,062	$ 0