CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities
Net income	$ 428,302	$ 163,545	$ 351,947
Adjustment to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	342,014	329,924	301,683
Impairment on real estate properties	44,658	75,972	48,939
(Recovery) impairment on direct financing leases	(717)	(3,079)	7,917
Provision for rental income	38,806	146,608	11,120
Provision for credit losses	77,733	37,997
Amortization of deferred financing costs and loss on debt extinguishment	43,051	11,608	9,564
Accretion of direct financing leases	55	30	13
Stock-based compensation expense	21,415	18,822	15,359
Gain on assets sold - net	(161,609)	(19,113)	(55,696)
Amortization of acquired in-place leases - net	(9,516)	(14,187)	(5,904)
Effective yield payable (receivable) on mortgage notes	1,526	(719)	(173)
Interest paid-in-kind	(7,496)	(7,718)	(7,160)
(Income) loss from unconsolidated joint ventures	(2,060)	(1,315)	22
Change in operating assets and liabilities - net:
Contractual receivables	(23,169)	5,709	(5,931)
Straight-line rent receivables	(52,206)	(28,968)	(46,580)
Lease inducements	(13,733)	(22,443)	(42,071)
Other operating assets and liabilities	(4,918)	15,583	(29,302)
Net cash provided by operating activities	722,136	708,256	553,747
Cash flows from investing activities
Acquisition of a business, net of cash acquired		(5,058)	(59,616)
Acquisition of real estate	(615,873)	(105,663)	(377,841)
Acquisition deposit - net	(5,730)	(2,500)
Net proceeds from sale of real estate investments	318,529	180,851	219,262
Investments in construction in progress	(95,064)	(75,111)	(139,678)
Proceeds from sale of direct financing lease and related trust	717	15,414	93,730
Placement of mortgage loans	(86,664)	(62,432)	(20,702)
Collection of mortgage principal	45,167	9,867	54,529
Investments in unconsolidated joint ventures	(10,484)	(2,471)	(103,963)
Distributions from unconsolidated joint ventures in excess of earnings	17,868	6,291	9,079
Capital improvements to real estate investments	(44,948)	(31,072)	(52,892)
Receipts from insurance proceeds	5,993	897	8,170
Investments in other investments	(164,793)	(167,936)	(100,312)
Proceeds from other investments	111,109	149,866	91,281
Net cash used in investing activities	(524,173)	(89,057)	(378,953)
Cash flows from financing activities
Proceeds from long-term borrowings	2,275,128	1,852,209	2,001,985
Payments of long-term borrowings	(2,178,311)	(1,838,155)	(2,081,322)
Payments of financing related costs	(48,989)	(18,183)	(4,787)
Net proceeds from issuance of common stock	274,011	151,861	515,358
Dividends paid	(637,648)	(612,310)	(564,127)
Noncontrolling members' contributions to consolidated joint venture			228
Redemption of Omega OP Units	(79)
Distributions to Omega OP Unit Holders	(25,229)	(20,970)	(21,294)
Net cash used in financing activities	(341,117)	(485,548)	(153,959)
Effect of foreign currency translation on cash, cash equivalents and restricted cash	7	527	874
(Decrease) increase in cash, cash equivalents and restricted cash	(143,147)	134,178	21,709
Cash, cash equivalents and restricted cash at beginning of period	167,558	33,380	11,671
Cash, cash equivalents and restricted cash at end of period	$ 24,411	$ 167,558	$ 33,380