CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018
Operating activities:
Net income		$ 442,342	$ 620,828
Adjustments to reconcile net income to net cash provided from (used in) operating activities:
Depreciation and amortization		491,984	464,476
Other amortization expenses		9,761	7,984
Provision for loan losses		18,690	0
Impairment of assets		9,939	32,817
Stock-based compensation expense		15,192	16,725
Loss (gain) on derivatives and financial instruments, net		(574)	(14,633)
Loss (gain) on extinguishment of debt, net		15,719	12,006
Loss (income) from unconsolidated entities		18,248	1,180
Rental income less than (in excess of) cash received		(53,234)	13,544
Amortization related to above (below) market leases, net		(2)	1,363
Loss (gain) on real estate dispositions, net		(165,727)	(348,939)
Distributions by unconsolidated entities		46	21
Increase (decrease) in accrued expenses and other liabilities		55,415	46,718
Decrease (increase) in receivables and other assets		(3,317)	(15,666)
Net cash provided from (used in) operating activities		854,482	838,424
Investing activities:
Cash disbursed for acquisitions		(2,718,808)	(595,596)
Cash disbursed for capital improvements to existing properties		(124,176)	(111,332)
Cash disbursed for construction in progress		(155,409)	(62,978)
Capitalized interest		(6,256)	(4,436)
Investment in real estate loans receivable		(62,935)	(48,291)
Principal collected on real estate loans receivable		6,840	91,427
Other investments, net of payments		(17,640)	(48,212)
Contributions to unconsolidated entities		(119,001)	(32,768)
Distributions by unconsolidated entities		70,844	22,897
Proceeds from (payments on) derivatives		(21,643)	(27,678)
Proceeds from sales of real property		616,820	947,218
Net cash provided from (used in) investing activities		(2,531,364)	130,251
Financing activities:
Net increase (decrease) in unsecured credit facility and commercial paper		722,188	(179,000)
Proceeds from issuance of senior unsecured notes		2,036,964	545,074
Payments to extinguish senior unsecured notes		(1,050,000)	(450,000)
Net proceeds from the issuance of secured debt		295,969	44,606
Payments on secured debt		(178,700)	(224,958)
Net proceeds from the issuance of common stock		647,156	10,188
Payments for deferred financing costs and prepayment penalties		(24,177)	(18,639)
Contributions by noncontrolling interests	[1]	39,122	8,421
Distributions to noncontrolling interests	[1]	(64,004)	(59,484)
Cash distributions to stockholders		(695,099)	(670,859)
Other financing activities		(8,615)	(5,639)
Net cash provided from (used in) financing activities		1,720,804	(1,000,290)
Effect of foreign currency translation on cash, cash equivalents and restricted cash		(333)	(5,305)
Increase (decrease) in cash, cash equivalents and restricted cash		43,589	(36,920)
Cash, cash equivalents and restricted cash at beginning of period		316,129	309,303
Cash, cash equivalents and restricted cash at end of period		359,718	272,383
Supplemental cash flow information:
Interest paid		252,714	209,156
Income taxes paid (received), net		$ 2,040	$ 4,835

[1] Includes amounts attributable to redeemable noncontrolling interests.