Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating activities
Net loss	$ (12,037)	$ (42,981)	$ (212,003)
Adjustments to reconcile net loss to cash provided by operating activities:
Depreciation and amortization	118,031	74,626	49,120
Depreciation and amortization-discontinued operations	4,560	7,843	62,030
Amortization of above (below) market leases	2,210	5,015	2,695
Amortization of above (below) market leases-discontinued operations	33	84	(1,605)
Amortization of loan costs	2,448	1,967	1,607
Amortization of loan costs-discontinued operations	17	96	537
Amortization of mortgage loan discount	0	0	(400)
Share-based compensation expense	5,730	432	1,341
Deferred income tax benefit	(1,960)	(1,030)	(430)
Operating distributions from unconsolidated joint ventures	0	0	507
Gain on sale of real estate investments	(32,493)	(13,486)	(18,568)
Non-cash impairment loss on real estate	0	5,700	6,420
Non-cash impairment loss on real estate-discontinued operations	10,200	3,500	189,940
Non-cash impairment loss on mortgage loan receivable	0	0	9,235
Non-cash gain on mortgage loan payable-discontinued operations	0	0	(8,601)
Non-cash impairment loss on management contracts and goodwill	0	41,967	0
Equity in earnings of unconsolidated joint ventures	(178)	0	(57)
Equity in loss of unconsolidated joint ventures-discontinued operations	0	19	0
Change in fair value of contingent consideration	0	216	(13,000)
Increase in deferred leasing costs	(16,117)	(11,885)	(16,947)
Changes in operating assets and liabilities:
Change in receivables and other assets	(25,739)	(1,854)	(19,737)
Change in accounts payable and other liabilities	10,381	(8,656)	3,443
Cash provided by operating activities	65,086	61,573	35,527
Investing activities
Proceeds from mortgage loan receivable	(3,502)	2,000	0
Distributions from unconsolidated joint ventures	29,405	120	3,201
Investment in unconsolidated joint ventures	(86,685)	0	0
Investment in real estate	(187,442)	(692,911)	(491,279)
Acquisition of TPGI, net of cash received	(54,031)	0
Investment in other assets	0	0	(3,500)
Investment in management company	0	0	(32,400)
Proceeds from sale of real estate	191,485	127,867	200,193
Real estate development	(745)	0	0
Improvements to real estate	(35,373)	(25,621)	(41,811)
Cash used in investing activities	(146,888)	(588,545)	(365,596)
Financing activities
Principal payments on mortgage notes payable	(73,385)	(24,623)	(106,567)
Proceeds from mortgage notes payable	178,000	73,500	222,013
Proceeds from bank borrowings	542,234	482,266	286,655
Payments on bank borrowings	(501,234)	(352,588)	(265,172)
Debt financing costs	(2,749)	(3,552)	(4,858)
Purchase of Company stock	(49)	(172)	(397)
Dividends paid on common stock	(41,818)	(14,591)	(6,552)
Dividends paid on convertible preferred stock	0	(1,011)	0
Dividends paid on preferred stock	(3,433)	(13,553)	(9,529)
Contributions from noncontrolling interest partners	0	17,447	287,501
Distributions to noncontrolling interest partners	(113,178)	(729)	(43,546)
Redemption of preferred stock	(135,532)	0	0
Proceeds from stock offering, net of transaction costs	209,768	371,251	26,034
Cash provided by financing activities	58,624	533,645	385,582
Change in cash and cash equivalents	(23,178)	6,673	55,513
Cash and cash equivalents at beginning of year	81,856	75,183	19,670
Cash and cash equivalents at end of year	58,678	81,856	75,183
Supplemental cash flow information:
Interest paid, net of amount capitalized	43,334	36,378	60,123
Cash paid for income taxes	56	1,275	705
Supplemental schedule of non-cash investing and financing activity:
Assets acquired in TPGI merger	1,202,732	0	0
Liabilities assumed in TPGI merger	122,282	0	0
Noncontrolling interests acquired in TPGI merger	34,230	0	0
Shares issued in TPGI merger	331,260	0	0
Issuance of limited voting stock in TPGI merger	4	0	0
Acquisition of Lincoln Place	68,430	0	0
Issuance of operating partnership units	96,409	18,216	0
Transfer of assets classified as held for sale	16,260	0	0
Mortgage notes payable transferred to purchaser	0	254,095	215,285
Mortgage note payable and interest payable transferred in deed in lieu of foreclosure	0	0	8,601
Contingent consideration related to the contribution of the Management Company	0	0	18,000
Restricted shares and deferred incentive share units issued (forfeited)	0	1,105	1,110
Mortgage loans assumed in purchases (including TPGI merger)	727,451	58,694	87,225
Shares issued in lieu of Directors' fees	220	263	319
Operating partnership units converted to common stock	4,302	18,216	0
Shares issued pursuant to TPG Management Services Agreement	$ 450	$ 225	$ 0