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	$ 369,541	$ 346,230
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization (including amounts in discontinued operations)	587,176	569,325
Amortization of deferred revenue and lease intangibles, net	(14,775)	(11,159)
Other non-cash amortization	(616)	(13,376)
Stock-based compensation	16,792	15,010
Straight-lining of rental income, net	(29,644)	(21,165)
Loss (gain) on extinguishment of debt, net	5,079	(1,062)
Gain on real estate dispositions (including amounts in discontinued operations)	(17,726)	(2,241)
Gain on real estate loan investments	(249)	(3,598)
Gain on sale of marketable securities	0	(856)
Income tax expense (benefit)	4,420	(13,100)
(Income) loss from unconsolidated entities	(549)	707
Gain on re-measurement of equity interest upon acquisition, net	0	(1,241)
Other	13,599	6,133
Changes in operating assets and liabilities:
Increase in other assets	(3,306)	(28,132)
Increase in accrued interest	14,835	14,624
Decrease in accounts payable and other liabilities	(24,605)	(20,670)
Net cash provided by operating activities	919,972	835,429
Cash flows from investing activities:
Net investment in real estate property	(1,184,036)	(1,358,766)
Purchase of noncontrolling interest	(3,588)	(7,895)
Investment in loans receivable and other	(66,436)	(34,717)
Proceeds from real estate disposals	112,746	29,191
Proceeds from loans receivable	55,573	299,156
Purchase of marketable securities	(46,689)	0
Proceeds from sale or maturity of marketable securities	21,689	5,493
Funds held in escrow for future development expenditures	2,602	15,189
Development project expenditures	(71,375)	(74,707)
Capital expenditures	(56,235)	(50,634)
Other	(421)	(411)
Net cash used in investing activities	(1,236,170)	(1,178,101)
Cash flows from financing activities:
Net change in borrowings under credit facilities	(153,684)	(92,586)
Proceeds from debt	2,007,707	1,766,844
Repayment of debt	(905,117)	(840,532)
Payment of deferred financing costs	(14,946)	(19,977)
Issuance of common stock, net	0	106,002
Cash distribution to common stockholders	(640,414)	(588,770)
Cash distribution to redeemable OP unitholders	(4,214)	(3,479)
Purchases of redeemable OP units	0	(317)
Contributions from noncontrolling interest	0	2,094
Distributions to noncontrolling interest	(6,760)	(7,614)
Other	(551)	7,830
Net cash provided by financing activities	282,021	329,495
Net decrease in cash and cash equivalents	(34,177)	(13,177)
Effect of foreign currency translation on cash and cash equivalents	3,956	(59)
Cash and cash equivalents at beginning of period	94,816	67,908
Cash and cash equivalents at end of period	64,595
Assets and liabilities assumed from acquisitions:
Real estate investments	353,995	221,447
Other assets acquired	3,683	6,526
Debt assumed	228,150	183,848
Other liabilities	19,441	27,583
Deferred income tax liability	110,087	4,849
Noncontrolling interests	$ 0	$ 11,693