CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 182,573	$ (151,666)
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depreciation	122,571	140,357
Net amortization of debt discounts, premiums and deferred financing fees	(703)	321
Straight line rental income	(10,398)	(26,056)
Amortization of acquired real estate leases	39,431	46,350
Other amortization	15,181	14,727
Loss on asset impairment	20,160	225,615
(Gain) loss on early extinguishment of debt	(3,354)	60,027
Equity in earnings of investees	(24,460)	(14,913)
Gain on sale of equity investments	(171,721)	(66,293)
Gain on issuance of shares by an equity investee	(17,020)	0
Distributions of earnings from investees	20,680	13,791
Net gain on sale of properties	0	(4,955)
Other non-cash expenses	5,544	0
Change in assets and liabilities:
Restricted cash	5,634	2,149
Rents receivable and other assets	(28,586)	(58,705)
Accounts payable and accrued expenses	19,826	11,116
Rent collected in advance	(5,399)	1,945
Security deposits	37	527
Due to related persons	(9,277)	(4,677)
Cash provided by operating activities	160,719	189,660
CASH FLOWS FROM INVESTING ACTIVITIES:
Real estate acquisitions	0	(154,430)
Real estate improvements	(81,935)	(80,239)
Principal payments received from direct financing lease	5,451	5,196
Principal payments received from real estate mortgages receivable	0	1,000
Proceeds from sale of properties, net	185,299	37,699
Proceeds from sale of equity investments, net	710,492	239,576
Distributions in excess of earnings from investees	0	168
Decrease (increase) in restricted cash	913	(3,008)
Deconsolidation of a subsidiary	0	(12,286)
Cash provided by investing activities	820,220	33,676
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common shares, net	0	626,809
Repurchase and retirement of outstanding debt securities	0	(728,021)
Proceeds from borrowings	0	1,036,000
Payments on borrowings	(551,174)	(964,258)
Deferred financing fees	0	(1,204)
Distributions to common shareholders	(29,597)	(80,106)
Distributions to preferred shareholders	(25,114)	(33,453)
Distributions to noncontrolling interest in consolidated subsidiary	0	(14,863)
Cash used in financing activities	(605,885)	(159,096)
Effect of exchange rate changes on cash	(98)	(469)
Increase in cash and cash equivalents	374,956	63,771
Cash and cash equivalents at beginning of period	222,449	102,219
Cash and cash equivalents at end of period	597,405	165,990
SUPPLEMENTAL CASH FLOW INFORMATION:
Interest paid	118,948	156,841
Taxes paid	2,732	1,197
NON-CASH INVESTING ACTIVITIES:
Investment in real estate mortgage receivable	0	(7,688)
Increase in capital expenditures recorded as liabilities	$ 15,757	$ 4,809