CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income (loss)	$ 282,540	$ 64,990
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization of real estate, in-place lease and other intangibles	189,276	131,951
Amortization of deferred compensation	4,832	4,111
Amortization of deferred financing costs	2,582	2,699
Straight-line rents	(6,229)	(5,091)
Amortization of nonrefundable entrance fees and above/below market lease intangibles	(15,943)	0
Equity loss (income) from unconsolidated joint ventures	11,979	863
Distributions of earnings from unconsolidated joint ventures	9,513	5,232
Loss (gain) on sale of real estate under direct financing leases	(41,707)	0
Deferred income tax expense (benefit)	(24,911)	(3,800)
Impairments and loan loss reserves (recoveries), net	39,123	8,858
Loss on extinguishment of debt	(833)	0
Loss (gain) on sales of real estate, net	(164,869)	(8,044)
Loss (gain) upon change of control, net	(167,434)	0
Other non-cash items	502	560
Decrease (increase) in accounts receivable and other assets, net	(5,036)	(11,114)
Increase (decrease) in accounts payable, accrued liabilities and deferred revenue	(18,343)	(32,633)
Net cash provided by (used in) operating activities	95,042	158,582
Cash flows from investing activities:
Acquisitions of real estate	(20,018)	(106,298)
Development, redevelopment, and other major improvements of real estate	(209,418)	(136,654)
Leasing costs, tenant improvements, and recurring capital expenditures	(21,791)	(19,220)
Proceeds from sales of real estate, net	419,381	122,678
Acquisition of CCRC Portfolio	(396,352)	0
Contributions to unconsolidated joint ventures	(1,722)	(3,870)
Distributions in excess of earnings from unconsolidated joint ventures	2,639	5,497
Proceeds from sales/principal repayments on debt investments and direct financing leases	84,336	481
Investments in loans receivable, direct financing leases and other	(8,066)	(22,891)
Net cash provided by (used in) investing activities	(151,011)	(160,277)
Cash flows from financing activities:
Borrowings under bank line of credit and commercial paper	2,025,600	320,000
Repayments under bank line of credit and commercial paper	(2,118,600)	(125,000)
Repayments and repurchase of debt, excluding bank line of credit and commercial paper	(5,338)	(2,437)
Issuance of common stock and exercise of options	1,066,428	1,578
Repurchase of common stock	(9,737)	(2,919)
Dividends paid on common stock	(188,500)	(177,286)
Distributions to and purchase of noncontrolling interests	(8,432)	(5,415)
Net cash provided by (used in) financing activities	761,421	8,521
Effect of foreign exchanges on cash, cash equivalents and restricted cash	(10)	(20)
Net increase (decrease) in cash, cash equivalents and restricted cash	705,442	6,806
Cash, cash equivalents and restricted cash, beginning of year	184,657	139,846
Cash, cash equivalents and restricted cash, end of year	$ 890,099	$ 146,652