CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash flows from operating activities:
Net income	$ 90,092	$ 49,046
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization (including amounts in discontinued operations)	164,636	51,759
Amortization of deferred revenue and lease intangibles, net	(5,160)	(668)
Other non-cash amortization	(10,108)	2,513
Change in fair value of financial instruments	33	0
Stock-based compensation	4,834	4,016
Straight-lining of rental income, net	(4,890)	(1,772)
Loss on extinguishment of debt	29,544	16,520
Net gain on sale of real estate assets (including amounts in discontinued operations)	(40,233)	0
Loss (gain) on real estate loan investments	559	(177)
Gain on sale of marketable securities	0	(733)
Income tax expense (benefit) (including amounts in discontinued operations)	11,305	(3,197)
(Income) loss from unconsolidated entities	(317)	170
Other	3,049	398
Changes in operating assets and liabilities:
Decrease (increase) in other assets	1,275	(1,540)
Increase in accrued interest	20,452	15,253
Decrease in accounts payable and other liabilities	(20,110)	(819)
Net cash provided by operating activities	244,961	130,769
Cash flows from investing activities:
Net investment in real estate property	(500)	0
Purchase of noncontrolling interest	0	(3,319)
Investment in loans receivable	(22,473)	0
Proceeds from real estate disposals	8,847	0
Proceeds from loans receivable	17,244	19,950
Proceeds from sale of marketable securities	0	23,050
Development project expenditures	(31,274)	(131)
Capital expenditures	(10,019)	(7,832)
Other	(2,137)	(37)
Net cash (used in) provided by investing activities	(40,312)	31,681
Cash flows from financing activities:
Net change in borrowings under revolving credit facilities	(382,398)	(32,000)
Proceeds from debt	667,330	14,630
Repayment of debt	(298,801)	(331,069)
Payment of deferred financing costs	(1,793)	(314)
Issuance of common stock, net	0	299,926
Cash distribution to common stockholders	(179,253)	(93,738)
Cash distribution to redeemable OP unitholders	(1,112)	0
Purchases of redeemable OP units	(233)	0
Distributions to noncontrolling interest	(1,592)	(349)
Other	565	458
Net cash used in financing activities	(197,287)	(142,456)
Net increase in cash and cash equivalents	7,362	19,994
Effect of foreign currency translation on cash and cash equivalents	55	93
Cash and cash equivalents at beginning of period	45,807	21,812
Cash and cash equivalents at end of period	53,224	41,899
Assets and liabilities assumed from acquisitions:
Real estate investments	54,881	0
Utilization of escrow funds held for an Internal Revenue Code Section 1031 exchange	(37,799)	0
Other assets acquired	(5,126)	0
Debt assumed	17,734	0
Other liabilities	(6,989)	0
Noncontrolling interests	(3,115)	0
Equity issued	$ 4,326	$ 0