CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 25,833	$ 64,541
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation	80,512	96,006
Net amortization of debt discounts, premiums and deferred financing fees	(612)	913
Straight line rental income	(7,201)	(19,798)
Amortization of acquired real estate leases	27,806	33,060
Other amortization	9,579	9,806
Loss on asset impairment	20,282	8,535
Loss on early extinguishment of debt	3,345	60,027
Equity in earnings of investees	(23,388)	(4,421)
Loss (gain) on sale of equity investments	33	(66,293)
Gain on issuance of shares by an equity investee	(17,020)
Distributions of earnings from investees	20,680	4,111
Net gain on sale of properties		(4,955)
Other non-cash expenses	18,402
Change in assets and liabilities:
Restricted cash	641	966
Rents receivable and other assets	(19,856)	(22,449)
Accounts payable and accrued expenses	(7,833)	(15,737)
Rent collected in advance	(2,339)	(7,730)
Security deposits	241	122
Due to related persons	47	(3)
Cash provided by operating activities	129,152	136,701
CASH FLOWS FROM INVESTING ACTIVITIES:
Real estate acquisitions		(165,110)
Real estate improvements	(60,437)	(53,908)
Principal payments received from direct financing lease	3,612	3,444
Proceeds from sale of properties, net	185,179	33,863
Proceeds from sale of equity investments, net	5,776	239,576
Distributions in excess of earnings from investees		168
Increase in restricted cash	(1,369)	(2,349)
Cash provided by investing activities	132,761	55,684
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common shares, net		626,809
Repurchase and retirement of outstanding debt securities		(728,021)
Proceeds from borrowings		936,000
Payments on borrowings	(15,998)	(962,207)
Deferred financing fees		(1,200)
Distributions to common shareholders	(29,597)	(50,527)
Distributions to preferred shareholders	(11,151)	(22,302)
Distributions to noncontrolling interest in consolidated subsidiary		(14,863)
Cash used in financing activities	(56,746)	(216,311)
Effect of exchange rate changes on cash	757	(773)
Increase (decrease) in cash and cash equivalents	205,924	(24,699)
Cash and cash equivalents at beginning of period	222,449	102,219
Cash and cash equivalents at end of period	428,373	77,520
SUPPLEMENTAL CASH FLOW INFORMATION:
Interest paid	77,120	109,108
Taxes paid	2,732	1,134
NON-CASH INVESTING ACTIVITIES:
Investment in real estate mortgage receivable		$ (7,688)