CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:
Net income	$ 263,623	$ 233,784
Depreciation and amortization of real estate, in-place lease and other intangibles:
Continuing operations	107,388	103,179
Discontinued operations		1,538
Amortization of above and below market lease intangibles, net	(168)	(78)
Amortization of deferred compensation	4,890	5,430
Amortization of deferred financing costs, net	4,965	4,644
Straight-line rents	(13,968)	(18,793)
Loan and direct financing lease interest accretion	(21,503)	(24,266)
Deferred rental revenues	(145)	1,257
Equity income from unconsolidated joint ventures	(14,528)	(14,801)
Distributions of earnings from unconsolidated joint ventures	2,430	803
Gain on sales of real estate	(28,010)
Marketable securities and other (gains) losses, net	63	(11,082)
Changes in:
Accounts receivable, net	(1,045)	1,967
Other assets	(8,942)	(8,699)
Accounts payable and accrued liabilities	(47,869)	(60,533)
Net cash provided by operating activities	247,181	214,350
Cash flows from investing activities:
Acquisitions of real estate	(5,473)	(25,654)
Development of real estate	(33,983)	(38,749)
Leasing costs and tenant and capital improvements	(12,405)	(8,959)
Proceeds from sales of real estate, net	36,753
Distributions in excess of earnings from unconsolidated joint ventures	772	568
Proceeds from the sale of marketable securities		28,030
Principal repayments on loans receivable	3,133	2,188
Investments in loans receivable and other	(42,281)	(14,957)
Decrease in restricted cash	6,933	173
Net cash used in investing activities	(46,551)	(57,360)
Cash flows from financing activities:
Net borrowings under bank line of credit		14,000
Issuance of senior unsecured notes	350,000
Repayments of senior unsecured notes	(400,000)	(150,000)
Repayments of mortgage debt	(162,739)	(12,135)
Deferred financing costs	(9,239)
Issuance of common stock and exercise of options	32,728	32,942
Repurchase of common stock	(8,068)	(689)
Dividends paid on common stock	(250,198)	(238,467)
Issuance of noncontrolling interests	41	987
Distributions to noncontrolling interests	(3,975)	(3,754)
Net cash used in financing activities	(451,450)	(357,116)
Effect of foreign exchange on cash and cash equivalents	2
Net decrease in cash and cash equivalents	(250,818)	(200,126)
Cash and cash equivalents, beginning of period	300,556	247,673
Cash and cash equivalents, end of period	$ 49,738	$ 47,547