Omega Healthcare Investors (OHI) 10-Q 3 May 23 2023 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2023	Apr. 28, 2023
Document and Entity Information [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2023
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity Registrant Name	OMEGA HEALTHCARE INVESTORS, INC.
Entity Incorporation, State or Country Code	MD
Entity File Number	1-11316
Entity Tax Identification Number	38-3041398
Entity Address, Address Line One	303 International Circle, Suite 200
Entity Address, City or Town	Hunt Valley
Entity Address, State or Province	MD
Entity Address, Postal Zip Code	21030
City Area Code	410
Local Phone Number	427-1700
Title of 12(b) Security	Common Stock
Trading Symbol	OHI
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock Shares Outstanding		234,353,375
Amendment Flag	false
Entity Central Index Key	0000888491
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Real estate assets
Buildings and improvements	$ 7,303,014	$ 7,347,853
Land	926,180	923,605
Furniture and equipment	498,334	499,902
Construction in progress	94,698	88,904
Total real estate assets	8,822,226	8,860,264
Less accumulated depreciation	(2,384,191)	(2,322,773)
Real estate assets - net	6,438,035	6,537,491
Investments in direct financing leases - net	8,670	8,503
Real estate loans receivable - net	1,061,869	1,042,731
Investments in unconsolidated joint ventures	181,339	178,920
Assets held for sale	25,766	9,456
Total real estate investments	7,715,679	7,777,101
Non-real estate loans receivable - net	189,880	225,281
Total investments	7,905,559	8,002,382
Cash and cash equivalents	245,182	297,103
Restricted cash	3,336	3,541
Contractual receivables - net	7,999	8,228
Other receivables and lease inducements	190,842	177,798
Goodwill	643,500	643,151
Other assets	293,788	272,960
Total assets	9,290,206	9,405,163
LIABILITIES AND EQUITY
Revolving credit facility	19,784	19,246
Secured borrowings	364,773	366,596
Senior notes and other unsecured borrowings - net	4,903,377	4,900,992
Accrued expenses and other liabilities	316,661	315,047
Total liabilities	5,604,595	5,601,881
Equity:
Preferred stock $1.00 par value authorized - 20,000 shares, issued and outstanding - none
Common stock $0.10 par value authorized - 350,000 shares, issued and outstanding - 234,346 shares as of March 31, 2023 and 234,252 shares as of December 31, 2022	23,434	23,425
Additional paid-in capital	6,322,160	6,314,203
Cumulative net earnings	3,474,343	3,438,401
Cumulative dividends paid	(6,344,413)	(6,186,986)
Accumulated other comprehensive income	21,533	20,325
Total stockholders' equity	3,497,057	3,609,368
Noncontrolling interest	188,554	193,914
Total equity	3,685,611	3,803,282
Total liabilities and equity	$ 9,290,206	$ 9,405,163

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parentheticals) - $ / shares	Mar. 31, 2023	Dec. 31, 2022
Statement Of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized	20,000,000	20,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized	350,000,000	350,000,000
Common stock, shares issued	234,346,000	234,252,000
Common stock, shares outstanding	234,346,000	234,252,000

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenues
Rental income	$ 189,077	$ 216,883
Income from direct financing leases	254	256
Interest income	28,420	31,143
Miscellaneous income	451	1,033
Total revenues	218,202	249,315
Expenses
Depreciation and amortization	81,192	82,752
General and administrative	20,526	16,385
Real estate taxes	3,997	3,603
Acquisition, merger and transition related costs	639	1,513
Impairment on real estate properties	38,988	3,511
(Recovery) provision for credit losses	(4,057)	1,824
Interest expense	58,546	58,145
Total expenses	199,831	167,733
Other income (expense)
Other income (expense) - net	2,720	(455)
Loss on debt extinguishment	(6)	(6)
Gain on assets sold - net	13,637	113,637
Total other income	16,351	113,176
Income before income tax benefit (expense) and income from unconsolidated joint ventures	34,722	194,758
Income tax benefit (expense)	1,292	(1,225)
Income from unconsolidated joint ventures	831	1,623
Net income	36,845	195,156
Net income attributable to noncontrolling interest	(903)	(5,549)
Net income available to common stockholders	$ 35,942	$ 189,607
Basic:
Net income available to common stockholders	$ 0.15	$ 0.79
Diluted:
Net income available to common stockholders	$ 0.15	$ 0.79

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 36,845	$ 195,156
Other comprehensive income (loss):
Foreign currency translation	10,793	(10,809)
Cash flow hedges	(9,550)	19,578
Total other comprehensive income	1,243	8,769
Comprehensive income	38,088	203,925
Comprehensive income attributable to noncontrolling interest	(938)	(5,800)
Comprehensive income attributable to common stockholders	$ 37,150	$ 198,125

CONSOLIDATED STATEMENTS OF EQUI

CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total Stockholders' Equity [Member]	Common Stock Par Value	Additional Paid-in Capital	Cumulative Net Earnings [Member]	Cumulative Dividends	Accumulated Other Comprehensive Income (Loss)[Member]	Noncontrolling Interest [Member]	Total
Beginning balance at Dec. 31, 2021	$ 3,906,838	$ 23,906	$ 6,427,566	$ 3,011,474	$ (5,553,908)	$ (2,200)	$ 201,388	$ 4,108,226
Increase (Decrease) In Stockholders' Equity [Roll Forward]
Stock related compensation	6,905		6,905					6,905
Issuance of common stock	1,147	12	1,135					1,147
Repurchase of common stock	(27,321)	(98)	(27,223)					(27,321)
Common dividends declared (per share)	(160,687)				(160,687)			(160,687)
Vesting/exercising of Omega OP Units	(7,176)		(7,176)				7,176
Omega OP Units distributions							(5,276)	(5,276)
Capital contribution from noncontrolling interest holder in consolidated JV							2,925	2,925
Other comprehensive income	8,518					8,518	251	8,769
Net income	189,607			189,607			5,549	195,156
Balance ending at Mar. 31, 2022	3,917,831	23,820	6,401,207	3,201,081	(5,714,595)	6,318	212,013	4,129,844
Beginning balance at Dec. 31, 2022	3,609,368	23,425	6,314,203	3,438,401	(6,186,986)	20,325	193,914	3,803,282
Increase (Decrease) In Stockholders' Equity [Roll Forward]
Stock related compensation	8,792		8,792					8,792
Issuance of common stock	1,985	9	1,976					1,985
Common dividends declared (per share)	(157,427)				(157,427)			(157,427)
Vesting/exercising of Omega OP Units	(2,811)		(2,811)				2,811
Omega OP Units distributions							(9,131)	(9,131)
Capital contribution from noncontrolling interest holder in consolidated JV							22	22
Other comprehensive income	1,208					1,208	35	1,243
Net income	35,942			35,942			903	36,845
Balance ending at Mar. 31, 2023	$ 3,497,057	$ 23,434	$ 6,322,160	$ 3,474,343	$ (6,344,413)	$ 21,533	$ 188,554	$ 3,685,611

CONSOLIDATED STATEMENTS OF EQ_2

CONSOLIDATED STATEMENTS OF EQUITY (Parentheticals) - $ / shares	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022
Increase (Decrease) In Stockholders' Equity [Roll Forward]
Dividend per Common Share	$ 0.67	$ 0.67	$ 0.67

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities
Net income	$ 36,845	$ 195,156
Adjustment to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	81,192	82,752
Impairment on real estate properties	38,988	3,511
Provision for rental income	12,500	3,151
(Recovery) provision for credit losses	(4,057)	1,824
Amortization of deferred financing costs and loss on debt extinguishment	3,259	3,199
Accretion of direct financing leases	26	19
Stock-based compensation expense	8,744	6,860
Gain on assets sold - net	(13,637)	(113,637)
Amortization of acquired in-place leases - net	(6,131)	(1,608)
Straight-line rent and effective interest receivables	(12,576)	(23,674)
Interest paid-in-kind	(2,555)	(2,196)
Loss (income) from unconsolidated joint ventures	137	(677)
Change in operating assets and liabilities - net:
Contractual receivables	180	(1,912)
Lease inducements	(12,323)	1,932
Other operating assets and liabilities	(19,232)	(22,498)
Net cash provided by operating activities	111,360	132,202
Cash flows from investing activities
Acquisition of real estate	(26,383)	(113,157)
Net proceeds from sale of real estate investments	17,559	332,552
Investments in construction in progress	(4,780)	(4,667)
Placement of loan principal	(31,240)	(103,026)
Collection of loan principal	52,011	79,101
Distributions from unconsolidated joint ventures in excess of earnings	382	61
Capital improvements to real estate investments	(5,340)	(13,548)
Receipts from insurance proceeds	448	22
Net cash provided by investing activities	2,657	177,338
Cash flows from financing activities
Proceeds from long-term borrowings		420,208
Payments of long-term borrowings	(1,913)	(66,896)
Payments of financing related costs	(6)	(6)
Net proceeds from issuance of common stock	1,985	1,147
Repurchase of common stock		(27,321)
Dividends paid	(157,379)	(160,641)
Noncontrolling members' contributions to consolidated joint venture	22	22
Distributions to Omega OP Unit Holders	(9,131)	(5,276)
Net cash (used in) provided by financing activities	(166,422)	161,237
Effect of foreign currency translation on cash, cash equivalents and restricted cash	279	(407)
(Decrease) increase in cash, cash equivalents and restricted cash	(52,126)	470,370
Cash, cash equivalents and restricted cash at beginning of period	300,644	24,411
Cash, cash equivalents and restricted cash at end of period	$ 248,518	$ 494,781

BASIS OF PRESENTATION AND SIGNI

BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES	3 Months Ended
	Mar. 31, 2023
BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES [Abstract]
BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES	NOTE 1 – BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES Business Overview and Organization Omega Healthcare Investors, Inc. (“Parent”) is a Maryland corporation that, together with its consolidated subsidiaries (collectively, “Omega,” the “Company,” “we,” “our,” or “us”) invests in healthcare-related real estate properties located in the United States (“U.S.”) and the United Kingdom (“U.K.”). Our core business is to provide financing and capital to the long-term healthcare industry with a particular focus on skilled nursing facilities (“SNFs”), assisted living facilities (“ALFs”), and to a lesser extent, independent living facilities (“ILFs”), rehabilitation and acute care facilities (“specialty facilities”) and medical office buildings. Our core portfolio consists of long-term “triple net” leases and real estate loans with healthcare operating companies and affiliates (collectively, our “operators”). In addition to our core investments, we make loans to operators and/or their principals. From time to time, we also acquire equity interests in joint ventures or entities that support the long-term healthcare industry and our operators. Omega has elected to be taxed as a real estate investment trust (“REIT”) for federal income tax purposes and is structured as an umbrella partnership REIT (“UPREIT”) under which all of Omega’s assets are owned directly or indirectly by, and all of Omega’s operations are conducted directly or indirectly through, its operating partnership subsidiary, OHI Healthcare Properties Limited Partnership (collectively with its subsidiaries, “Omega OP”). Omega has exclusive control over Omega OP’s day-to-day management pursuant to the partnership agreement governing Omega OP. As of March 31, 2023, Parent owned approximately 97% of the issued and outstanding units of partnership interest in Omega OP (“Omega OP Units”), and other investors owned approximately 3% of the outstanding Omega OP Units. Basis of Presentation and Principles of Consolidation The accompanying unaudited consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and do not include all the information and notes required by U.S. generally accepted accounting principles (“GAAP”) for complete financial statements. In our opinion, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. The results of operations for the interim periods reported herein are not necessarily indicative of results to be expected for the full year. These unaudited consolidated financial statements should be read in conjunction with the financial statements and the footnotes thereto included in our Annual Report on Form 10-K Omega’s consolidated financial statements include the accounts of (i) Parent, (ii) all direct and indirect wholly owned subsidiaries of Omega, including Omega OP, (iii) other entities in which Omega or Omega OP has a majority voting interest and control and (iv) variable interest entities (“VIEs”) of which Omega is the primary beneficiary. All intercompany transactions and balances have been eliminated in consolidation, and Omega’s net earnings are reduced by the portion of net earnings attributable to noncontrolling interests. Segments We conduct our operations and report financial results as one business segment. The presentation of financial results as one reportable segment is consistent with the way we operate our business and is consistent with the manner in which our Chief Operating Decision Maker (CODM), our Chief Executive Officer, evaluates performance and makes resource and operating decisions for the business. Reclassification Certain line items on our Consolidated Statements of Operations and Consolidated Statements of Cash Flows have been reclassified to conform to the current period presentation. Risks and Uncertainties including COVID-19 The Company is subject to certain risks and uncertainties affecting the healthcare industry, including those that arose from the novel coronavirus (“COVID-19”) global pandemic, which disproportionately impacted the senior care sector, as well as those stemming from healthcare legislation and changing regulation by federal, state and local governments. Additionally, we are subject to risks and uncertainties as a result of changes affecting operators of nursing home facilities due to the actions of governmental agencies and insurers to limit the rising cost of healthcare services.

REAL ESTATE ASSET

REAL ESTATE ASSET	3 Months Ended
	Mar. 31, 2023
REAL ESTATE ASSET [Abstract]
REAL ESTATE ASSETS	NOTE 2 – REAL ESTATE ASSETS ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended March 31, ​ ​ 2023 ​ 2022 ​ ​ (in thousands) Rental income – operating leases ​ $ 185,327 ​ $ 213,597 Variable lease income – operating leases ​ ​ 3,750 ​ ​ 3,286 Total rental income ​ $ 189,077 ​ $ 216,883 ​ Our variable lease income primarily represents the reimbursement of real estate taxes and ground lease expenses by operators that Omega pays directly. Asset Acquisitions The following table summarizes the asset acquisitions that occurred during the three months ended March 31, 2023: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Number of ​ ​ ​ Total Real Estate ​ Initial ​ ​ Facilities ​ Assets Acquired Annual ​ Period ​ SNF ALF ​ Country/State ​ (in millions) ​ Cash Yield (1) ​ Q1 — 6 U.K. ​ $ 26.4 (2) 8.0 % Total — 6 ​ $ 26.4 ​ ​ (1) Initial annual cash yield reflects the initial annual contractual cash rent divided by the purchase price. (2) In connection with this acquisition, the Company recorded $9.9 million of right-of-use (“ROU”) assets and lease liabilities associated with ground leases assumed in the acquisition. Construction in Progress and Capital Expenditure Investments We invested $10.1 million and $18.2 million under our construction in progress and capital improvement programs during the three months ended March 31, 2023 and 2022, respectively.

ASSETS HELD FOR SALE, DISPOSITI

ASSETS HELD FOR SALE, DISPOSITIONS AND IMPAIRMENTS	3 Months Ended
	Mar. 31, 2023
ASSETS HELD FOR SALE, DISPOSITIONS AND IMPAIRMENTS [Abstract]
ASSETS HELD FOR SALE, DISPOSITIONS AND IMPAIRMENTS	NOTE 3 – ASSETS HELD FOR SALE, DISPOSITIONS AND IMPAIRMENTS Periodically we sell facilities to reduce our exposure to certain operators, geographies and non-strategic assets or due to the exercise of a tenant purchase option. The following is a summary of our assets held for sale: ​ ​ ​ ​ ​ ​ ​ March 31, ​ December 31, ​ 2023 2022 Number of facilities held for sale ​ 6 ​ ​ 2 Amount of assets held for sale (in thousands) $ 25,766 ​ $ 9,456 ​ During the first quarter of 2023, we entered into an agreement to sell five facilities leased to Guardian Healthcare (“Guardian”) for estimated gross proceeds of $23.8 million. We reclassified those five facilities to held for sale during the first quarter of 2023. As discussed in Note 21 – Subsequent Events, these five facilities previously leased to Guardian were sold during the second quarter of 2023. Asset Sales During the three months ended March 31, 2023, we sold two facilities, one SNF and one medical office building, subject to operating leases, for approximately $17.6 million in net cash proceeds. As a result of these sales, we recognized a net gain of approximately $13.6 million. During the three months ended March 31, 2022, we sold 27 facilities, subject to operating leases, for approximately $332.6 million in net cash proceeds, recognizing a net gain of approximately $113.6 million. The proceeds and gain primarily related to the sale of the 22 facilities that were previously leased and operated by Gulf Coast Health Care LLC (together with certain affiliates “Gulf Coast”) and were included in assets held for sale as of December 31, 2021. The net cash proceeds from the sale, including related costs accrued for as of the end of the first quarter of 2022, were $304.0 million, and we recognized a net gain of approximately $113.5 million. We elected to exit these facilities following Gulf Coast commencing the Chapter 11 bankruptcy process in October 2021. The agreement includes an earnout clause pursuant to which the buyer is obligated to pay an additional $18.7 million to Omega if certain financial metrics are achieved at the facilities in the three years following the sale. As we have determined it is not probable that we will receive any additional funds, we have not recorded any income related to the earnout clause. In December 2022, in connection with restructuring negotiations with LaVie Care Centers, LLC (“LaVie,” f/k/a Consulate Health Care) we sold 11 facilities to a third party previously leased to LaVie for a sales price of $129.8 million. Omega provided $104.8 million in senior seller financing, collateralized by first lien mortgages on the 11 facilities, to fund a portion of the purchase price. The 11-facility sale does not meet the contract criteria to be recognized under ASC 610-20. During the three months ended March 31, 2023, we received interest of $2.1 million related to the $104.8 million in senior seller financing, which was deferred and recorded as a contract liability within accrued expenses and other liabilities on our Consolidated Balance Sheets. Real Estate Impairments During the three months ended March 31, 2023, we recorded impairments of approximately $39.0 million on four facilities. Of the $39.0 million, $37.0 million related to two held-for-use facilities for which the carrying value exceeded the fair value and $2.0 million related to two facilities that were classified as held for sale for which the carrying values exceeded the estimated fair value less costs to sell. Of the $37.0 million, $27.5 million relates to one held-for-use facility which was closed during the quarter. During the three months ended March 31, 2022, we recorded impairments of approximately $3.5 million on two facilities that were classified as held for sale during the quarter for which the carrying values exceeded the estimated fair values less costs to sell. To estimate the fair value of the facilities for the impairments noted above, we utilized a market approach that considered binding sale agreements (a Level 1 input) or non-binding offers from unrelated third parties and/or broker quotes (a Level 3 input).

CONTRACTUAL RECEIVABLES AND OTH

CONTRACTUAL RECEIVABLES AND OTHER RECEIVABLES AND LEASE INDUCEMENTS	3 Months Ended
	Mar. 31, 2023
CONTRACTUAL RECEIVABLES AND OTHER RECEIVABLES AND LEASE INDUCEMENTS [Abstract]
CONTRACTUAL RECEIVABLES AND OTHER RECEIVABLES AND LEASE INDUCEMENTS	NOTE 4 – CONTRACTUAL RECEIVABLES AND OTHER RECEIVABLES AND LEASE INDUCEMENTS Contractual receivables relate to the amounts currently owed to us under the terms of our lease and loan agreements. Effective yield interest receivables relate to the difference between the interest income recognized on an effective yield basis over the term of the loan agreement and the interest currently due to us according to the contractual agreement. Straight-line rent receivables relate to the difference between the rental revenue recognized on a straight-line basis and the amounts currently due to us according to the contractual agreement. Lease inducements result from value provided by us to the lessee, at the inception, modification or renewal of the lease, and are amortized as a reduction of rental income over the non-cancellable lease term. A summary of our net receivables and lease inducements by type is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, ​ December 31, ​ ​ 2023 2022 ​ ​ (in thousands) ​ Contractual receivables – net ​ $ 7,999 ​ $ 8,228 ​ ​ ​ ​ ​ ​ ​ ​ ​ Effective yield interest receivables ​ $ 5,162 ​ $ 5,696 ​ Straight-line rent receivables ​ 179,816 ​ 166,061 ​ Lease inducements ​ 5,864 ​ 6,041 ​ Other receivables and lease inducements ​ $ 190,842 ​ $ 177,798 ​ ​ Cash Basis Operators and Straight-Line Receivable Write-Offs During the three months ended March 31, 2022, we placed two new operators on a cash basis of revenue recognition as collection of substantially all contractual lease payments due from them was not deemed probable. The new lease agreements with these operators were executed in the first quarter of 2022 and we placed them on a cash basis concurrent with the lease commencement, so there was no straight-line rent write-offs associated with moving these operators to cash basis. As of March 31, 2023, we had 17 operators on a cash basis for revenue recognition, which represent 25.1% and 32.2% of our total revenues (excluding the impact of write-offs) for the three months ended March 31, 2023 and 2022, respectively. During the three months ended March 31, 2022, we also wrote-off $3.2 million of straight-line rent receivable balances through rental income as a result of transitioning six facilities between existing operators. Rent Deferrals and Application of Collateral During the three months ended March 31, 2023 and 2022, we allowed eight operators and six operators, respectively, to defer $24.4 million and $19.3 million, respectively, of contractual rent and interest. The deferrals during the first quarter of 2023 primarily related to the following operators: LaVie ($14.3 million), Healthcare Homes Limited (“Healthcare Homes”)($6.1 million), Agemo Holdings, LLC (“Agemo”)($1.9 million) and Maplewood Senior Living (along with affiliates, “Maplewood”)($0.4 million). Additionally, we allowed three operators and four operators to apply collateral, such as security deposits or letters of credit, to contractual rent and interest during the three months ended March 31, 2023 and 2022, respectively. The total collateral applied to contractual rent and interest was $5.2 million and $3.3 million for the three months ended March 31, 2023 and 2022, respectively. Operator Collectibility Updates Agemo In the first quarter of 2023, Omega and Agemo entered into a restructuring agreement, an amended and restated master lease and a new loan agreement for two replacement loans. As part of the restructuring agreement and related agreements, Omega agreed to, among other things: ● Forgive and release Agemo from previously written off past due rent and interest obligations related to certain periods prior to the 2018 Agemo restructuring and from August 2021 through January 2023, with contractual rent under the lease agreement and contractual interest under the loan agreements scheduled to resume on April 1, 2023; ● reduce monthly contractual base rent from $4.8 million to $1.9 million following the sales of 22 facilities, previously leased and operated by Agemo, that occurred in the third and fourth quarters of 2022; ● extend the initial Agemo lease term from December 31, 2030 , to December 31, 2036 with three consecutive tenant 10-year extension options; and ● refinance and restructure the $25.0 million secured working capital loan (the “Agemo WC Loan”), the $32.0 million term loan (the “Agemo Term Loan”) and the aggregate deferred rent balance of $25.2 million into two replacement loans to Agemo that mature on December 31, 2036 , with aggregate principal of $82.2 million and an annual interest rate of 5.63% through October 2024, which increases to 5.71% until maturity. Agemo did not pay rent or interest during the three months ended March 31, 2023 and 2022. Agemo is on a cash basis of revenue recognition for lease purposes, so no rental income was recorded related to Agemo during the three months ended March 31, 2023 and 2022. Additionally, no interest income was recognized during the three months ended March 31, 2023 and 2022 on the two loans with Agemo because these loans are on non-accrual status and we are utilizing the cost recovery method, under which any payments, if received, are applied against the principal amount. See Note 6 – Non-Real Estate Loans Receivable for further discussion on the impact of the restructuring on the loans. Agemo resumed making contractual rent payments during the second quarter of 2023 in accordance with the restructuring terms discussed above. LaVie In the first quarter of 2023, Omega continued the process of restructuring our portfolio with LaVie and entered into lease amendments that allow for a partial rent deferral for the first four months of 2023. In doing so, we agreed to allow LaVie to defer up to $19.1 million of contractual rent from January 2023 through April 2023 under our lease agreements. In the first quarter of 2023, as a result, LaVie elected to defer $14.3 million of the full contractual payment of $21.7 million and paid the remaining $7.4 million of contractual rent due under the leases. Since LaVie was placed on a cash basis of revenue recognition for lease purposes in the fourth quarter of 2022, the $7.4 million of contractual rent payments that we received was recorded as rental income during the three months ended March 31, 2023. Revenue from LaVie represents approximately 3.2% and 11.3% of our total revenues (excluding the impact of write-offs) for the three months ended March 31, 2023 and 2022, respectively. Subsequent to quarter end, we transitioned two facilities, previously subject to the master lease with LaVie, to another operator. Maplewood In the first quarter of 2023, we agreed to a formal restructuring agreement, master lease amendments and loan amendments with Maplewood. As part of the restructuring agreement and related agreements, Omega agreed to, among other things: ● Extend the maturity date of the master lease from December 2033 to December 2037 with two consecutive 5-year tenant extension options; ● fix contractual rent at $69.3 million per annum (December 2022 rent annualized) and defer the 2.5% annual escalators under our lease agreement through December 31, 2025, with mandatory repayments to be made subject to certain metrics and due in full by the maturity date; ● fund $22.5 million of capital expenditures through December 31, 2025; ● extend the maturity date of the secured revolving credit facility from June 2030 to June 2035 with one borrower 2-year extension option; ● increase the capacity of the secured revolving credit facility from $250.5 million to $320.0 million, inclusive of payment-in-kind (“PIK”) interest applied to principal ; ● convert the 7% per annum cash interest due on the secured revolving credit facility to all PIK interest in 2023, 1% cash interest and 6% PIK interest in 2024, 4% cash interest and 3% PIK interest in 2025 and through the maturity date; ● pay a one-time option termination fee of $12.5 million to Maplewood; and ● reduce Maplewood’s share of any future potential sales proceeds (in excess of our gross investment) by the unpaid deferred rent balance, the $22.5 million of capital expenditures and the $12.5 million option termination fee payment. Maplewood is on a cash basis of revenue recognition for lease purposes, and we recorded rental income of $17.3 million for the three months ended March 31, 2023 for the contractual rent payments that were received. The $12.5 million option termination fee payment made in the first quarter of 2023 was accounted for as a lease inducement and recorded as a reduction to rental income since Maplewood is on a cash basis of revenue recognition. Additionally, as discussed further in Note 5 – Real Estate Loans Receivable, we recorded interest income of $1.5 million on the secured revolving credit facility during the three months ended March 31, 2023 for the contractual interest payment received related to December 2022, as the loan was placed on non-accrual status for interest recognition during the fourth quarter of 2022. Revenue from Maplewood represents approximately 8.2% and 9.0% of our total revenues (excluding the impact of write-offs) for the three months ended March 31, 2023 and 2022, respectively. Healthcare Homes In December 2022, we agreed to allow Healthcare Homes, a U.K. based operator representing 3.1% and 3.0% of our total revenues (excluding the impact of write-offs) for the three months ended March 31, 2023 and 2022, respectively, the ability to defer up to £6.7 million of contractual rent from January 2023 through April 2023 with regular payments required to resume in May 2023. The deferred rent balance accrues interest monthly at a rate of 8% per annum and must be fully repaid by December 31, 2024. During the first quarter of 2023, Healthcare Homes elected to defer £5.0 million ($6.1 million in USD) of contractual rent in accordance with the December 2022 agreement. Healthcare Homes is on a straight-line basis of revenue recognition. In May 2023, Healthcare Homes resumed making full contractual rent payments. 1.2% Operator Omega transitioned 14 facilities, previously subject to a lease with an operator that had collectability concerns during 2022 (referred to as the “1.2% Operator” in our Annual Report on Form 10-K ​ 2.0% Operator Omega transitioned 20 facilities, previously subject to a lease with an operator that that had collectability concerns during 2022 (referred to as the “2.0% Operator” in our Annual Report on Form 10-K

REAL ESTATE LOANS RECEIVABLE

REAL ESTATE LOANS RECEIVABLE	3 Months Ended
	Mar. 31, 2023
REAL ESTATE LOANS RECEIVABLE [Abstract]
REAL ESTATE LOANS RECEIVABLE	NOTE 5 – REAL ESTATE LOANS RECEIVABLE Real estate loans consist of mortgage notes and other real estate loans which are primarily collateralized by a first, second or third mortgage lien or a leasehold mortgage on, or an assignment of the partnership interest in the related properties. As of March 31, 2023, our real estate loans receivable consist of eight fixed rate mortgage notes on 53 long-term care facilities and 10 other real estate loans. The mortgage notes relate to facilities located in seven states that are operated by seven independent healthcare operating companies. We monitor compliance with our real estate loans and, when necessary, have initiated collection, foreclosure and other proceedings with respect to certain outstanding real estate loans. The principal amounts outstanding of real estate loans receivable, net of allowances, were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, ​ December 31, ​ ​ 2023 2022 ​ ​ (in thousands) ​ Mortgage notes due 2030; interest at 10.99% (1) ​ $ 508,745 $ 506,321 ​ Mortgage note due 2031; interest at 11.27% ​ ​ 73,755 ​ ​ 76,049 ​ Mortgage note due 2032; interest at 10.50% (2) ​ ​ 72,420 ​ ​ 72,420 ​ Mortgage note due 2025; interest at 7.85% ​ ​ 63,357 ​ ​ 63,811 ​ Other mortgage notes outstanding (3) ​ 17,922 ​ 12,922 ​ Mortgage notes receivable – gross ​ 736,199 ​ 731,523 ​ Allowance for credit losses on mortgage notes receivable ​ ​ (73,545) ​ ​ (83,393) ​ Mortgage notes receivable – net ​ ​ 662,654 ​ ​ 648,130 ​ Other real estate loan due 2035; interest at 7.00% ​ ​ 258,997 ​ ​ 250,500 ​ Other real estate loans due 2024; interest at 13.18% (1) ​ ​ 100,466 ​ ​ 98,440 ​ Other real estate loans due 2023-2025; interest at 12.03% (1) ​ ​ 35,647 ​ ​ 43,628 ​ Other real estate loan outstanding (4) ​ ​ 20,000 ​ ​ 20,000 ​ Leasehold mortgages and other real estate loans – gross ​ ​ 415,110 ​ ​ 412,568 ​ Allowance for credit losses on leasehold mortgages and other real estate loans ​ (15,895) ​ (17,967) ​ Leasehold mortgages and other real estate loans – net ​ ​ 399,215 ​ ​ 394,601 ​ Total real estate loans receivable – net ​ $ 1,061,869 ​ $ 1,042,731 ​ (1) Approximates the weighted average interest rate on facilities as of March 31, 2023. (2) Subsequent to quarter end, this mortgage note was extended to December 31, 2037. (3) Other mortgage notes outstanding have a weighted average interest rate of 9.00% as of March 31, 2023, with maturity dates ranging from 2023 through 2026 (with $12.9 million maturing in 2023 ). One of these mortgage notes with a principal balance of $6.4 million is past due and has been written down to the fair value of its collateral of $1.5 million. (4) As of March 31, 2023 and December 31, 2022, includes one real estate loan with an interest rate of 12.00% and a maturity date of December 2, 2027 . Interest revenue on real estate loans is included within interest income on the Consolidated Statements of Operations and is summarized as follows: ​ ​ ​ ​ ​ ​ ​ Three Months Ended March 31, ​ 2023 2022 ​ (in thousands) Mortgage notes – interest income $ 16,548 $ 20,549 Leasehold mortgages and other real estate loans – interest income 6,849 ​ 8,379 Total real estate loans interest income $ 23,397 ​ $ 28,928 ​ Mortgage note due 2031 In the second quarter of 2022, we agreed to a formal restructuring agreement and amended the mortgage loan with Guardian, which among other adjustments, extended the loan’s maturity date and allowed for the deferral of certain contractual interest. The loan amendment was treated as a loan modification provided to a borrower experiencing financial difficulty. Following the execution of the restructuring agreement, Guardian resumed paying contractual rent and interest during the second quarter of 2022 and continued such payments throughout the remainder of 2022 and the first quarter of 2023, in accordance with the restructuring terms. The mortgage loan is on non-accrual status and is being accounted for under the cost recovery method, under which any payments, if received, are applied against the principal amount. During the first quarter of 2023, we received $2.3 million of interest payments from Guardian that we applied against the outstanding principal of the loan and recognized a recovery for credit loss equal to the amount of payments applied against principal. As of March 31, 2023, the amortized cost basis of the Guardian mortgage loan is $73.8 million, which represents 6.4% of the total amortized cost basis of all real estate loan receivables. The amortized cost basis of the loan, net of reserves, is $35.2 million. As of March 31, 2023, the mortgage loan is secured by three SNFs and one ALF located in Pennsylvania. The mortgage loan was paid off during the second quarter of 2023, as discussed in Note 21 – Subsequent Events. Other real estate loan due 2035 As discussed in Note 4 – Contractual Receivables and Other Receivables and Lease Inducements, in the first quarter of 2023, Omega entered into a restructuring agreement and a loan amendment with Maplewood that modified Maplewood’s secured revolving credit facility. As part of the restructuring agreement and loan amendment, Omega agreed to extend the maturity date of the facility to June 2035, increase the capacity of the secured revolving credit facility from $250.5 million to $320.0 million, including PIK interest applied to the principal, and to convert the 7% cash interest due on the secured revolving credit facility to all PIK interest in 2023, 1% cash interest and 6% PIK interest in 2024, 4% cash interest and 3% PIK interest in 2025 and through the maturity date. The maximum PIK interest allowable under credit facility, as amended, is $52.2 million. This amendment was treated as a loan modification provided to a borrower experiencing financial difficulty. During the three months ended March 31, 2023, we recorded interest income of $1.5 million on the secured revolving credit facility for the contractual interest payment received related to December 2022, as the loan was placed on non-accrual status for interest recognition during the fourth quarter of 2022. We did not record any interest income related to the PIK interest in the first quarter of 2023. As of March 31, 2023, the amortized cost basis of this loan was $259.0 million, which represents 22.5% of the total amortized cost basis of all real estate loan receivables. As of March 31, 2023, the remaining commitment under the secured revolving credit facility, including the unrecognized PIK interest, was $58.1 million.

NON-REAL ESTATE LOANS RECEIVABL

NON-REAL ESTATE LOANS RECEIVABLE	3 Months Ended
	Mar. 31, 2023
NON-REAL ESTATE LOANS RECEIVABLE [Abstract]
NON-REAL ESTATE LOANS RECEIVABLE	NOTE 6 – NON-REAL ESTATE LOANS RECEIVABLE Our non-real estate loans consist of fixed and variable rate loans to operators and/or principals. These loans may be either unsecured or secured by the collateral of the borrower, which may include the working capital of the borrower. As of March 31, 2023, we had 34 loans with 19 different borrowers. A summary of our non-real estate loans is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, ​ December 31, ​ ​ 2023 2022 ​ ​ ​ (in thousands) ​ Notes due 2036; interest at 5.63% ​ $ 80,991 $ 55,791 ​ Notes due 2023-2028; interest at 10.51% (1) ​ ​ 58,475 ​ ​ 55,981 ​ Notes due 2036; interest at 2.00% ​ ​ 32,308 ​ ​ 32,539 ​ Note due 2027; interest at 12.00% (2) ​ ​ — ​ ​ 39,653 ​ Note due 2024; interest at 7.50% ​ ​ 47,999 ​ ​ 47,999 ​ Other notes outstanding (3) ​ 84,672 ​ 77,186 ​ Non-real estate loans receivable – gross ​ ​ 304,445 ​ ​ 309,149 ​ Allowance for credit losses on non-real estate loans receivable ​ ​ (114,565) ​ ​ (83,868) ​ Total non-real estate loans receivable – net ​ $ 189,880 ​ $ 225,281 ​ (1) Approximates the weighted average interest rate as of March 31, 2023. (2) During the first quarter of 2023, this loan was fully repaid. (3) Other notes outstanding have a weighted average interest rate of 7.00% as of March 31, 2023, with maturity dates ranging from 2023 through 2030 (with $17.2 million maturing in 2023 ). We have two loans within other notes outstanding with principal of $5.0 million and $4.2 million, respectively, that were to mature in 2022 but remained outstanding as of March 31, 2023. We have fully reserved the $5.0 million loan and have written down the $4.2 million loan down to the fair value of its collateral of $1.0 million. For the three months ended March 31, 2023 and 2022, non-real estate loans generated interest income of $5.0 million and $2.2 million, respectively. Interest income on non-real estate loans is included within interest income on the Consolidated Statements of Operations. Notes due 2036 ; interest at 5.63% As discussed in Note 4 – Contractual Receivables and Other Receivables and Lease Inducements, in the first quarter of 2023, Omega entered into a restructuring agreement and a replacement loan agreement that modified the existing Agemo loans. Under the restructuring agreement, previously written off contractual unpaid interest related to the Agemo WC Loan and the Agemo Term Loan was forgiven. The outstanding principal of the Agemo Term Loan was refinanced into a new $32.0 million loan (“Agemo Replacement Loan A”). The outstanding principal of the Agemo WC Loan and the aggregate rent deferred and outstanding under the Agemo lease agreement was combined and refinanced into a new $50.2 million loan (“Agemo Replacement Loan B” and with Agemo Replacement Loan A, the “Agemo Replacement Loans”). The Agemo Replacement Loans bear interest at 5.63% per annum through October 2024, which increases to 5.71% per annum until maturity. The Agemo Replacement Loans mature on December 31, 2036. Interest payments are scheduled to resume on April 1, 2023, contingent upon Agemo’s compliance with certain conditions of the restructuring agreement; however, Agemo has the option to defer the interest payment due on April 1, 2023. Beginning in January 2025, Agemo will be required to make principal payments on the Agemo Replacement Loans dependent on certain metrics. These amendments were treated as loan modifications provided to a borrower experiencing financial difficulty. Both of these loans are on non-accrual status, and we are utilizing the cost recovery method, under which any payments, if received, are applied against the principal amount. Agemo exercised its option to defer the interest payment due on April 1, 2023 and resumed making interest payments in May 2023 in accordance with the restructuring terms discussed above. Prior to the restructuring, the principal of the Agemo WC Loan and the Agemo Term Loan were written down to $5.9 million and zero, respectively, the fair value of the underlying collateral of these loans. No changes to the collateral supporting the loans were made because of the refinancing of these loans into the Agemo Replacement Loans. Additional principal of $25.2 million related to deferred rent due under the master lease was combined with the principal of the Agemo WC Loan under Agemo Replacement Loan B. This deferred rent balance was previously written off when the Agemo master lease was taken to a cash basis of revenue recognition in 2020. We believe it is not probable that we will collect the additional $25.2 million of principal balance associated with the deferred rent under Agemo Replacement Loan B. As such, we added an additional allowance for credit losses of $25.2 million related to Agemo Replacement Loan B concurrent with the increase in loan principal. There is no income statement impact as a result of this additional reserve due to the balance previously being written off. As of March 31, 2023, the amortized cost basis of these loans was $81.0 million, which represents 26.6% of the total amortized cost basis of all non-real estate loan receivables. The total reserve as of March 31, 2023 related to the Agemo Replacement Loans was $75.1 million. Notes due 2036 ; interest at 2.00% During the fourth quarter of 2022, we amended an $8.3 million term loan and a $25.0 million term loan with LaVie to, among other terms, extend the loan maturities to November 30, 2036 to align with the lease term, and starting in January 2023, reduce the interest rates to 2%, remove the requirement to make any principal payments until the maturity dates and to convert from monthly cash interest payments to PIK interest. These amendments were treated as loan modifications provided to a borrower experiencing financial difficulty. Both of these loans are on non-accrual status and we are utilizing the cost recovery method, under which any payments made by LaVie are applied against the principal amount outstanding. During the quarter ended March 31, 2023, we applied an aggregate $0.2 million of interest payments received to the $25.0 million term loan principal balance and the $8.3 million term loan principal balance outstanding. ​ ​ ​

ALLOWANCE FOR CREDIT LOSSES

ALLOWANCE FOR CREDIT LOSSES	3 Months Ended
	Mar. 31, 2023
Receivables [Abstract]
ALLOWANCE FOR CREDIT LOSSES	NOTE 7 – ALLOWANCE FOR CREDIT LOSSES A rollforward of our allowance for credit losses for the three months ended March 31, 2023 is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Rating ​ Financial Statement Line Item Allowance for Credit Loss as of December 31, 2022 ​ Provision (recovery) for Credit Loss for the three months ended March 31, 2023 ​ Write-offs charged against allowance for the three months ended March 31, 2023 ​ Other additions to the allowance for the three months ended March 31, 2023 ​ Allowance for Credit Loss as of March 31, 2023 ​ ​ ​ (in thousands) 1 ​ Real estate loan receivable $ 162 ​ $ 351 ​ $ — ​ $ — ​ $ 513 2 ​ Real estate loans receivable ​ 157 ​ ​ (111) ​ ​ — ​ ​ — ​ ​ 46 3 ​ Real estate loans receivable ​ 15,110 ​ ​ (421) ​ ​ — ​ ​ — ​ ​ 14,689 4 ​ Real estate loans receivable ​ 33,666 ​ ​ (9,445) ​ ​ — ​ ​ — ​ ​ 24,221 6 ​ Real estate loans receivable ​ 52,265 ​ ​ (2,294) ​ ​ — ​ ​ — ​ ​ 49,971 ​ ​ Sub-total ​ 101,360 ​ ​ (11,920) ​ ​ — ​ ​ — ​ ​ 89,440 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 5 ​ Investment in direct financing leases ​ 2,816 ​ ​ (193) ​ ​ — ​ ​ — ​ ​ 2,623 ​ ​ Sub-total ​ 2,816 ​ ​ (193) ​ ​ — ​ ​ — ​ ​ 2,623 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2 ​ Non-real estate loans receivable ​ 859 ​ ​ (567) ​ ​ — ​ ​ — ​ ​ 292 3 ​ Non-real estate loans receivable ​ 2,079 ​ ​ (1,727) ​ ​ — ​ ​ — ​ ​ 352 4 ​ Non-real estate loans receivable ​ 634 ​ ​ (361) ​ ​ — ​ ​ — ​ ​ 273 5 ​ Non-real estate loans receivable ​ 18,619 ​ ​ 66 ​ ​ — ​ ​ 25,200 (1) ​ 43,885 6 ​ Non-real estate loans receivable ​ 61,677 ​ ​ 8,086 ​ ​ — ​ ​ — ​ ​ 69,763 ​ ​ Sub-total ​ 83,868 ​ ​ 5,497 ​ ​ — ​ ​ 25,200 ​ ​ 114,565 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2 ​ Off-balance sheet non-real estate loan commitments ​ 207 ​ ​ (96) ​ ​ — ​ ​ — ​ ​ 111 3 ​ Off-balance sheet non-real estate loan commitments ​ 29 ​ ​ (23) ​ ​ — ​ ​ — ​ ​ 6 3 ​ Off-balance sheet real estate loan commitments ​ — ​ ​ 2,660 ​ ​ — ​ ​ — ​ ​ 2,660 4 ​ Off-balance sheet real estate loan commitments ​ 84 ​ ​ (62) ​ ​ — ​ ​ — ​ ​ 22 6 ​ Off-balance sheet non-real estate loan commitments ​ — ​ ​ 80 ​ ​ — ​ ​ — ​ ​ 80 ​ ​ Sub-total ​ 320 ​ ​ 2,559 ​ ​ — ​ ​ — ​ ​ 2,879 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total $ 188,364 ​ $ (4,057) ​ $ — ​ $ 25,200 ​ $ 209,507 (1) This amount relates to the additional $25.2 million allowance recorded during the first quarter of 2023 in order to reserve the aggregate deferred rent amount that is included within Agemo Replacement Loan B. See Note 6 – Non-Real Estate Loans Receivable for additional details. A rollforward of our allowance for credit losses for the three months ended March 31, 2022 is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Rating ​ Financial Statement Line Item Allowance for Credit Loss at December 31, 2021 ​ Provision (recovery) for Credit Loss for the three months ended March 31, 2022 ​ Write-offs charged against allowance for the three months ended March 31, 2022 ​ Allowance for Credit Loss as of March 31, 2022 ​ ​ ​ (in thousands) 2 ​ Real estate loans receivable $ 14 ​ $ 48 ​ $ — ​ $ 62 3 ​ Real estate loans receivable ​ 5,367 ​ ​ 983 ​ ​ — ​ ​ 6,350 4 ​ Real estate loans receivable ​ 20,577 ​ ​ 1,634 ​ ​ — ​ ​ 22,211 5 ​ Real estate loans receivable ​ 136 ​ ​ (23) ​ ​ — ​ ​ 113 6 ​ Real estate loans receivable ​ 56,480 ​ ​ (5,135) (1) ​ — ​ ​ 51,345 ​ ​ Sub-total ​ 82,574 ​ ​ (2,493) ​ ​ — ​ ​ 80,081 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 3 ​ Investment in direct financing leases ​ 530 ​ ​ 5 ​ ​ — ​ ​ 535 ​ ​ Sub-total ​ 530 ​ ​ 5 ​ ​ — ​ ​ 535 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2 ​ Non-real estate loans receivable ​ 29 ​ ​ 52 ​ ​ — ​ ​ 81 3 ​ Non-real estate loans receivable ​ 1,206 ​ ​ 205 ​ ​ — ​ ​ 1,411 4 ​ Non-real estate loans receivable ​ 56 ​ ​ 475 ​ ​ — ​ ​ 531 5 ​ Non-real estate loans receivable ​ 7,861 ​ ​ 4,704 (2) ​ — ​ ​ 12,565 6 ​ Non-real estate loans receivable ​ 51,269 ​ ​ (730) ​ ​ — ​ ​ 50,539 ​ ​ Sub-total ​ 60,421 ​ ​ 4,706 ​ ​ — ​ ​ 65,127 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2 ​ Off-balance sheet non-real estate loan commitments ​ 7 ​ ​ 2 ​ ​ — ​ ​ 9 3 ​ Off-balance sheet non-real estate loan commitments ​ 207 ​ ​ 20 ​ ​ — ​ ​ 227 3 ​ Off-balance sheet real estate loan commitments ​ 251 ​ ​ (151) ​ ​ — ​ ​ 100 4 ​ Off-balance sheet non-real estate loan commitments ​ 216 ​ ​ (78) ​ ​ — ​ ​ 138 4 ​ Off-balance sheet real estate loan commitments ​ 117 ​ ​ (106) ​ ​ — ​ ​ 11 6 ​ Off-balance sheet non-real estate loan commitments ​ 143 ​ ​ (81) ​ ​ — ​ ​ 62 ​ ​ ​ ​ 941 ​ ​ (394) ​ ​ — ​ ​ 547 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total $ 144,466 ​ $ 1,824 ​ $ — ​ $ 146,290 (1) This amount relates to a recovery recorded on the Guardian mortgage loan during the first quarter of 2022. (2) This provision includes an additional $4.7 million allowance recorded on the Agemo WC Loan during the first quarter of 2022. A summary of our amortized cost basis by year of origination and credit quality indicator is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Rating Financial Statement Line Item 2023 2022 2021 2020 2019 2018 2017 & older Revolving Loans Balance as of March 31, 2023 ​ ​ (in thousands) 1 Real estate loans receivable $ — $ 20,000 $ — $ — $ — $ — $ 63,357 $ — $ 83,357 2 Real estate loans receivable ​ — ​ — ​ — ​ 21,325 ​ — ​ — ​ — ​ — ​ 21,325 3 Real estate loans receivable ​ 5,000 ​ 34,600 ​ 72,420 ​ — ​ — ​ — ​ 1,047 ​ 258,997 ​ 372,064 4 Real estate loans receivable ​ — ​ 186 ​ 30,308 ​ 89,512 ​ 5,099 ​ 129,580 ​ 333,201 ​ — ​ 587,886 5 Real estate loans receivable ​ — ​ — ​ — ​ — ​ — ​ — ​ — ​ — ​ — 6 Real estate loans receivable ​ — ​ — ​ — ​ — ​ — ​ — ​ 86,677 ​ — ​ 86,677 ​ Sub-total ​ 5,000 ​ 54,786 ​ 102,728 ​ 110,837 ​ 5,099 ​ 129,580 ​ 484,282 ​ 258,997 ​ 1,151,309 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 5 Investment in direct financing leases ​ — ​ — ​ — ​ — ​ — ​ — ​ 11,293 ​ — ​ 11,293 ​ Sub-total ​ — ​ — ​ — ​ — ​ — ​ — ​ 11,293 ​ — ​ 11,293 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2 Non-real estate loans receivable ​ — ​ — ​ — ​ — ​ — ​ — ​ — ​ 94,197 ​ 94,197 3 Non-real estate loans receivable ​ 3,092 ​ 23,101 ​ — ​ — ​ 4,533 ​ 10,800 ​ — ​ 9,550 ​ 51,076 4 Non-real estate loans receivable ​ — ​ — ​ — ​ — ​ 1,810 ​ — ​ 1,000 ​ 25,000 ​ 27,810 5 Non-real estate loans receivable ​ — ​ 1,126 ​ — ​ — ​ 2,226 ​ 49,748 ​ — ​ — ​ 53,100 6 Non-real estate loans receivable ​ 5,541 ​ 24,457 ​ 7,851 ​ — ​ — ​ 4,183 ​ 31,243 ​ 4,987 ​ 78,262 ​ Sub-total ​ 8,633 ​ 48,684 ​ 7,851 ​ — ​ 8,569 ​ 64,731 ​ 32,243 ​ 133,734 ​ 304,445 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total $ 13,633 $ 103,470 $ 110,579 $ 110,837 $ 13,668 $ 194,311 $ 527,818 $ 392,731 $ 1,467,047 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year to date gross write-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — ​ Interest Receivable on Real Estate Loans and Non-Real Estate Loans We have elected the practical expedient to exclude interest receivable from our allowance for credit losses. As of March 31, 2023 and December 31, 2022, we have excluded $8.0 million and $8.2 million, respectively, of contractual interest receivables and $5.2 million and $5.7 million, respectively, of effective yield interest receivables from our allowance for credit losses. We write-off interest receivable to provision for credit losses in the period we determine the interest is no longer considered collectible. During the three months ended March 31, 2023 and 2022, we recognized $1.5 million and $4.2 million, respectively, of interest income related to loans on non-accrual status as of March 31, 2023.

VARIABLE INTEREST ENTITIES

VARIABLE INTEREST ENTITIES	3 Months Ended
	Mar. 31, 2023
Variable Interest Entities [Abstract]
VARIABLE INTEREST ENTITIES	NOTE 8 – VARIABLE INTEREST ENTITIES Unconsolidated Variable Interest Entities We hold variable interests in several VIEs through our investing and financing activities, which are not consolidated, as we have concluded that we are not the primary beneficiary of these entities as we do not have the power to direct activities that most significantly impact the VIE’s economic performance and/or the variable interest we hold does not obligate us to absorb losses or provide us with the right to receive benefits from the VIE which could potentially be significant. Below is a summary of our assets, liabilities, collateral and maximum exposure to loss associated with these unconsolidated VIEs as of March 31, 2023 and December 31, 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, ​ December 31, ​ ​ ​ 2023 ​ 2022 ​ ​ ​ (in thousands) ​ Assets ​ ​ ​ ​ ​ ​ ​ Real estate assets – net ​ $ 1,066,967 ​ $ 982,721 ​ Real estate loans receivable – net ​ 283,997 ​ ​ 270,500 ​ Non-real estate loans receivable – net ​ 5,929 ​ ​ 5,929 ​ Contractual receivables – net ​ 114 ​ ​ 114 ​ Other assets ​ ​ — ​ ​ 1,499 ​ Total assets ​ 1,357,007 ​ 1,260,763 ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities ​ ​ ​ ​ ​ ​ ​ Net in-place lease liability ​ ​ (273) ​ ​ (280) ​ Security deposit ​ ​ (5,082) ​ ​ (4,828) ​ Contingent liability ​ ​ (43,915) ​ ​ (43,915) ​ Other liabilities ​ ​ (92) ​ ​ (1,499) ​ Total liabilities ​ (49,362) ​ (50,522) ​ ​ ​ ​ ​ ​ ​ ​ ​ Collateral ​ ​ ​ Personal guarantee ​ (48,000) ​ ​ (48,000) ​ Other collateral (1) ​ (1,066,967) ​ ​ (982,721) ​ Total collateral ​ (1,114,967) ​ ​ (1,030,721) ​ ​ ​ ​ ​ ​ ​ ​ ​ Maximum exposure to loss ​ $ 192,678 ​ $ 179,520 ​ (1) Amount excludes accounts receivable that Omega has a security interest in as collateral under the two working capital loans with operators that are unconsolidated VIEs. The fair value of the accounts receivable available to Omega was $5.9 million as of March 31, 2023 and December 31, 2022. In determining our maximum exposure to loss from the unconsolidated VIEs, we considered the underlying carrying value of the real estate subject to leases with the operator and other collateral, if any, supporting our other investments, which may include accounts receivable, security deposits, letters of credit or personal guarantees, if any, as well as other liabilities recognized with respect to these operators. The table below reflects our total revenues from the operators that are considered unconsolidated VIEs for the three months ended March 31, 2023 and 2022: ​ ​ ​ ​ ​ ​ ​ Three Months Ended March 31, ​ 2023 ​ 2022 ​ (in thousands) Revenue ​ ​ Rental income $ 9,838 ​ $ 20,863 Interest income 2,106 ​ 3,766 Total $ 11,944 ​ $ 24,629 ​ Consolidated VIEs During the first quarter of 2022, we entered into a joint venture, which owns two ALFs, for a $3.2 million cash contribution, representing 52.4% of the outstanding equity of the joint venture. The joint venture is a VIE, and we have concluded that we are the primary beneficiary of this VIE based on a combination of our ability to direct the activities that most significantly impact the joint venture’s economic performance and our rights to receive residual returns or the obligation to absorb losses arising from the joint venture. Accordingly, this joint venture has been consolidated. Omega is not required to make any additional capital contributions to the joint venture, and it is expected to be funded from the ongoing operations of the underlying properties. As of March 31, 2023 and December 31, 2022, this joint venture has $27.0 million and $25.8 million, respectively, of total assets and $20.2 million and $19.8 million, respectively, of total liabilities, which are included in our Consolidated Balance Sheets. During the fourth quarter of 2022, we acquired seven facilities using a reverse like-kind exchange structure pursuant to Section 1031 of the Code (a “reverse 1031 exchange”). As of March 31, 2023, we had completed the reverse 1031 exchange for three of the acquired facilities and the remaining four acquired facilities remained in the possession of the Exchange Accommodation Titleholders (“EATs”). The EATs were classified as VIEs as they do not have sufficient equity investment at risk to permit the entity to finance its activities. The Company consolidated the EATs because it had the ability to control the activities that most significantly impacted the economic performance of the EATs and was, therefore, the primary beneficiary of the EATs. The properties held by the EATs were reflected as real estate with a carrying value of $54.6 million and $55.2 million as of March 31, 2023 and December 31, 2022, respectively. The EATs also held cash of $23.9 million as of December 31, 2022

INVESTMENT IN JOINT VENTURES

INVESTMENT IN JOINT VENTURES	3 Months Ended
	Mar. 31, 2023
INVESTMENTS IN JOINT VENTURES [Abstract]
INVESTMENTS IN JOINT VENTURES	NOTE 9 – INVESTMENTS IN JOINT VENTURES Unconsolidated Joint Ventures The following is a summary of our investments in unconsolidated joint ventures (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Carrying Amount ​ ​ Ownership ​ Initial Investment ​ ​ ​ ​ Facility ​ Facilities at ​ March 31, ​ December 31, Entity ​ % ​ Date ​ Investment (1) ​ Type ​ 3/31/2023 ​ 2023 2022 Second Spring Healthcare Investments ​ 15% ​ 11/1/2016 ​ $ 50,032 ​ SNF ​ — ​ $ 10,892 $ 10,975 Lakeway Realty, L.L.C. ​ 51% ​ 5/17/2019 ​ ​ 73,834 ​ Specialty facility ​ 1 ​ ​ 69,851 ​ ​ 70,151 Cindat Joint Venture ​ 49% ​ 12/18/2019 ​ ​ 105,688 ​ ALF ​ 63 ​ ​ 100,102 ​ ​ 97,382 OMG Senior Housing, LLC ​ 50% ​ 12/6/2019 ​ ​ — ​ Specialty facility ​ 1 ​ — ​ — OH CHS SNP, Inc. ​ 9% ​ 12/20/2019 ​ ​ 1,013 ​ N/A ​ N/A ​ ​ 494 ​ ​ 412 ​ ​ ​ ​ ​ ​ $ 230,567 ​ ​ ​ ​ ​ $ 181,339 ​ $ 178,920 (1) Our investment includes our transaction costs, if any. The following table reflects our income (loss) from unconsolidated joint ventures for the three months ended March 31, 2023 and 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended March 31, Entity ​ 2023 2022 ​ ​ (in thousands) Second Spring Healthcare Investments ​ $ 289 ​ $ 285 Second Spring II LLC (1) ​ ​ — ​ ​ (2) Lakeway Realty, L.L.C. ​ ​ 679 ​ 661 Cindat Joint Venture ​ 1 ​ 735 OMG Senior Housing, LLC ​ (220) ​ (83) OH CHS SNP, Inc. ​ 82 ​ 27 Total ​ $ 831 ​ $ 1,623 (1) The assets held by this joint venture have been liquidated and we have no remaining operations related to this joint venture. Asset Management Fees We receive asset management fees from certain joint ventures for services provided. For the three months ended March 31, 2023 and 2022, we recognized approximately $0.2 million of asset management fees. These fees are included in miscellaneous income in the accompanying Consolidated Statements of Operations.

GOODWILL AND OTHER INTANGIBLES

GOODWILL AND OTHER INTANGIBLES	3 Months Ended
	Mar. 31, 2023
Goodwill and Other Intangibles [Abstract]
GOODWILL AND OTHER INTANGIBLES	NOTE 10 – GOODWILL AND OTHER INTANGIBLES The following is a summary of our goodwill as of March 31, 2023 and December 31, 2022: ​ ​ ​ ​ ​ ​ (in thousands) Balance as of December 31, 2022 ​ $ 643,151 Foreign currency translation ​ 349 Balance as of March 31, 2023 ​ $ 643,500 ​ The following is a summary of our intangibles as of March 31, 2023 and December 31, 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, ​ December 31, ​ ​ 2023 ​ 2022 ​ ​ ​ (in thousands) ​ Assets: ​ ​ ​ ​ Above market leases ​ $ 5,929 ​ $ 5,929 ​ Accumulated amortization ​ (4,520) (4,484) ​ Net above market leases ​ $ 1,409 ​ $ 1,445 ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ Below market leases ​ $ 55,183 ​ $ 66,433 ​ Accumulated amortization ​ (39,512) (44,595) ​ Net below market leases ​ $ 15,671 ​ $ 21,838 ​ ​ Above market leases, net of accumulated amortization, are included in other assets on our Consolidated Balance Sheets. Below market leases, net of accumulated amortization, are included in accrued expenses and other liabilities on our Consolidated Balance Sheets. The net amortization related to the above and below market leases is included in our Consolidated Statements of Operations as an adjustment to rental income. For the three months ended March 31, 2023 and 2022, our net amortization related to intangibles was $6.1 million and $1.6 million, respectively. The estimated net amortization related to these intangibles for the remainder of 2023 and the next four years is as follows: remainder of 2023 – $ 2.0 million; 2024 – $2.5 million; 2025 – $2.5 million; 2026 – $2.0 million and 2027 – $1.7 million. As of March 31, 2023, the weighted average remaining amortization period of above market lease assets is approximately twelve years and below market lease liabilities is approximately seven years.

CONCENTRATION OF RISK

CONCENTRATION OF RISK	3 Months Ended
	Mar. 31, 2023
Concentration of Risk [Abstract]
CONCENTRATION OF RISK	NOTE 11 – CONCENTRATION OF RISK As of March 31, 2023, our portfolio of real estate investments (including properties associated with mortgages, direct financing leases, assets held for sale and consolidated joint ventures) consisted of 931 healthcare facilities, located in 42 states and the U.K. and operated by 68 third-party operators. Our investment in these facilities, net of impairments and allowances, totaled approximately $9.5 billion at March 31, 2023, with approximately 97% of our real estate investments related to long-term healthcare facilities. Our portfolio is made up of (i) 661 SNFs, 175 ALFs, 19 ILFs, 16 specialty facilities and one medical office building, (ii) fixed rate mortgages on 48 SNFs, three ALFs and two specialty facilities, and (iii) six facilities that are held for sale. At March 31, 2023, we also held other real estate loans receivable (excluding mortgages) of $399.2 million, non-real estate loans receivable of $189.9 million, consisting primarily of secured loans to third-party operators of our facilities, and $181.3 million of investments in five unconsolidated joint ventures. As of March 31, 2023 and December 31, 2022, we had investments with one operator or manager that approximated or exceeded 10% of our total investments: Maplewood. Maplewood generated approximately 8.2% and 9.0% of our total revenues (excluding the impact of write-offs) for the three months ended March 31, 2023 and 2022, respectively. As of March 31, 2023, the three states in which we had our highest concentration of investments were Florida (11.5%), Texas (10.2%) and Indiana (6.6%).

STOCKHOLDERS EQUITY

STOCKHOLDERS EQUITY	3 Months Ended
	Mar. 31, 2023
Stockholders Equity [Abstract]
STOCKHOLDERS EQUITY	NOTE 12 – STOCKHOLDERS’ EQUITY Dividends The following is a summary of our declared cash dividends on common stock: ​ ​ ​ ​ ​ ​ Record ​ Payment ​ Dividend per Date Date Common Share February 6, 2023 ​ February 15, 2023 ​ $ 0.67 May 1, 2023 ​ May 15, 2023 ​ ​ 0.67 ​ Dividend Reinvestment and Common Stock Purchase Plan The following is a summary of the shares issued under the Dividend Reinvestment and Common Stock Purchase Plan for the three months ended March 31, 2023 and 2022 (in millions): ​ ​ ​ ​ ​ Period Ended Shares issued ​ Gross Proceeds March 31, 2022 0.1 ​ $ 2.3 March 31, 2023 0.1 ​ ​ 2.3 ​ Accumulated Other Comprehensive Income (Loss) The following is a summary of our accumulated other comprehensive income (loss), net of tax where applicable: ​ ​ ​ ​ ​ ​ ​ As of and for the ​ Three Months Ended March 31, ​ 2023 2022 ​ (in thousands) Foreign Currency Translation: ​ ​ Beginning balance $ (85,004) ​ $ (24,012) Translation gain (loss) 15,750 ​ (14,630) Realized gain (loss) 84 ​ (26) Ending balance (69,170) ​ (38,668) ​ ​ ​ ​ ​ ​ Derivative Instruments: ​ ​ ​ Cash flow hedges: ​ ​ ​ Beginning balance 86,356 ​ 30,407 Unrealized (loss) gain (10,624) ​ 18,612 Realized gain (1) 1,074 ​ ​ 966 Ending balance 76,806 ​ 49,985 Net investment hedges: ​ ​ ​ Beginning balance 18,634 ​ (9,588) Unrealized (loss) gain (5,041) ​ 3,847 Ending balance 13,593 ​ (5,741) Total accumulated other comprehensive income before noncontrolling interest 21,229 ​ 5,576 Add: portion included in noncontrolling interest 304 ​ 742 Total accumulated other comprehensive income for Omega $ 21,533 ​ $ 6,318 (1) Recorded in interest expense on the Consolidated Statements of Operations.

TAXES

TAXES	3 Months Ended
	Mar. 31, 2023
Taxes [Abstract]
TAXES	NOTE 13 – TAXES Omega was organized, has operated and intends to continue to operate in a manner that enables Omega to qualify for taxation as a REIT under Sections 856 through 860 of the Code. On a quarterly and annual basis, we perform several analyses to test our compliance within the REIT taxation rules. If we fail to meet the requirements for qualification as a REIT in any tax year, we will be subject to federal income tax on our taxable income at regular corporate rates and may not be able to qualify as a REIT for the four We are also subject to federal taxation of 100% of the net income derived from the sale or other disposition of property, other than foreclosure property, that we held primarily for sale to customers in the ordinary course of a trade or business. We believe that we do not hold assets for sale to customers in the ordinary course of business and that none of the assets currently held for sale or that have been sold would be considered a prohibited transaction within the REIT taxation rules. As a REIT under the Code, we generally will not be subject to federal income taxes on the REIT taxable income that we distribute to stockholders, subject to certain exceptions. In 2022, we distributed dividends in excess of our taxable income. We currently own stock in certain subsidiary REITs. These subsidiaries are required to individually satisfy all of the rules for qualification as a REIT. If we fail to meet the requirements for qualification as a REIT for any of the subsidiary REITs, it may cause Omega to fail the requirements for qualification as a REIT also. We have elected to treat certain of our active subsidiaries as taxable REIT subsidiaries (“TRSs”). Our domestic TRSs are subject to federal, state and local income taxes at the applicable corporate rates. As of March 31, 2023, one of our TRSs that is subject to income taxes at the applicable corporate rates had a net operating loss (“NOL”) carry-forward of approximately $10.2 million. Our NOL carry-forward was fully reserved as of March 31, 2023, with a valuation allowance due to uncertainties regarding realization. Under current law, NOL carry-forwards generated up through December 31, 2017, may be carried forward for no more than 20 years, and NOL carry-forwards generated in taxable years ended after December 31, 2017, may be carried forward indefinitely. We do not anticipate that such changes will materially impact the computation of Omega’s taxable income, or the taxable income of any Omega entity, including our TRSs. Our foreign subsidiaries are subject to foreign income taxes and withholding taxes. As of March 31, 2023, one of our U.K. subsidiaries had a NOL carryforward of approximately $43.1 million. The NOLs have no expiration date and may be available to offset future taxable income. We believe these foreign NOLs are realizable under a “more likely than not” measurement and have not recorded a valuation allowance against the deferred tax asset. The majority of our U.K. portfolio elected to enter the U.K. REIT regime with an effective date of April 1, 2023. In connection with entering the U.K. REIT regime, we recognized several adjustments to our deferred tax balances in the first quarter of 2023 as summarized below. The following is a summary of deferred tax assets and liabilities (which are recorded in other assets and accrued expenses and other liabilities in our Consolidated Balance Sheets): ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, ​ December 31, ​ 2023 2022 ​ ​ (in thousands) U.S. Federal net operating loss carryforward ​ $ 2,138 ​ $ 2,138 Valuation allowance on deferred tax asset ​ (2,138) ​ (2,138) Foreign net operating loss carryforward ​ ​ 10,782 ​ ​ 11,268 Foreign deferred tax liability (1) ​ — ​ (5,373) Net deferred tax asset ​ $ 10,782 ​ $ 5,895 ​ ​ ​ ​ ​ ​ ​ Foreign deferred tax liability (2) ​ $ 1,818 ​ $ — Net deferred tax liability ​ $ 1,818 ​ $ — (1) The deferred tax liability primarily resulted from inherited basis differences resulting from our acquisition of entities in the U.K. Subsequent adjustments to these accounts result from GAAP to tax differences related to depreciation, indexation and revenue recognition. The foreign deferred tax liabilities were eliminated upon the majority of our U.K. portfolio entering the U.K. REIT regime. (2) The deferred tax liability resulted from book to tax differences recorded in the U.S. relating to depreciation and revenue recognition in the U.K. recognized upon the majority of our U.K. portfolio entering the U.K. REIT regime. The following is a summary of our provision for income taxes: ​ ​ ​ ​ ​ ​ ​ Three Months Ended March 31, ​ 2023 2022 ​ (in millions) Federal, state and local income tax expense $ 0.3 $ 0.3 Foreign income tax (benefit) expense (1) ​ (1.6) ​ 0.9 Total income tax (benefit) expense (2) $ (1.3) ​ $ 1.2 (1) The benefit for the three months ended March 31, 2023 primarily relates to adjustments made to our deferred tax assets and liabilities as a result of the majority of our U.K. portfolio electing to enter into the U.K. REIT regime effective April 1, 2023. (2) The above amounts do not include gross income receipts or franchise taxes payable to certain states and municipalities.

STOCK-BASED COMPENSATION

STOCK-BASED COMPENSATION	3 Months Ended
	Mar. 31, 2023
Stock-Based Compensation [Abstract]
STOCK-BASED COMPENSATION	NOTE 14 – STOCK-BASED COMPENSATION Stock-based compensation expense was $8.7 million and $6.9 million for the three months ended March 31, 2023 and March 31, 2022, respectively. Stock-based compensation expense is included within general and administrative expenses on our Consolidated Statements of Operations. We granted 254,777 time-based profits interest units (“PIUs”) during the first quarter of 2023 to certain officers and employees, and those units vest on December 31, 2025 (three years after the grant date), subject to continued employment and vesting in certain other events. We granted 2,049,878 performance-based PIUs during the first quarter of 2023 to certain officers and employees, which are earned based on the level of performance over the performance period (normally three years) and vest quarterly in the four Time-based and performance-based grants made to named executive officers and key employees that meet certain conditions under the Company’s retirement policy (length of service, age, etc.) vest on an accelerated basis pursuant to the 2018 Stock Incentive Plan.

BORROWING ACTIVITIES AND ARRANG

BORROWING ACTIVITIES AND ARRANGEMENTS	3 Months Ended
	Mar. 31, 2023
BORROWING ACTIVITIES AND ARRANGEMENTS [Abstract]
BORROWING ACTIVITIES AND ARRANGEMENTS	NOTE 15 – BORROWING ACTIVITIES AND ARRANGEMENTS The following is a summary of our borrowings: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Annual ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest Rate ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ as of ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, ​ ​ March 31, ​ December 31, ​ Maturity 2023 ​ 2023 2022 ​ ​ ​ ​ (in thousands) Secured borrowings: ​ ​ ​ HUD mortgages (1)(2) ​ 2046 - 2052 ​ 3.01 % (3) ​ $ 342,795 ​ $ 344,708 2023 term loan (4) 2023 8.50 % ​ ​ 2,161 ​ ​ 2,161 2024 term loan (5) 2024 10.17 % ​ ​ 19,817 ​ ​ 19,727 Total secured borrowings ​ ​ ​ ​ ​ ​ ​ 364,773 ​ ​ 366,596 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unsecured borrowings: ​ ​ ​ Revolving credit facility (6)(7) 2025 6.04 % ​ 19,784 ​ 19,246 ​ ​ ​ ​ ​ ​ ​ ​ 19,784 ​ ​ 19,246 Senior notes and other unsecured borrowings: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 notes (6) 2023 4.375 % ​ 350,000 ​ 350,000 2024 notes (6) 2024 4.950 % ​ 400,000 ​ 400,000 2025 notes (6) 2025 4.500 % ​ 400,000 ​ 400,000 2026 notes (6) 2026 5.250 % ​ 600,000 ​ 600,000 2027 notes (6) 2027 4.500 % ​ 700,000 ​ 700,000 2028 notes (6) 2028 4.750 % ​ 550,000 ​ 550,000 2029 notes (6) 2029 3.625 % ​ 500,000 ​ 500,000 2031 notes (6) ​ 2031 ​ 3.375 % ​ ​ 700,000 ​ ​ 700,000 2033 notes (6) ​ 2033 ​ 3.250 % ​ ​ 700,000 ​ ​ 700,000 OP term loan (8) 2025 6.29 % ​ 50,000 ​ 50,000 Deferred financing costs – net ​ ​ ​ (21,099) ​ (22,276) Discount – net ​ ​ (25,524) ​ (26,732) Total senior notes and other unsecured borrowings – net ​ ​ 4,903,377 ​ 4,900,992 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total unsecured borrowings – net ​ ​ 4,923,161 ​ 4,920,238 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total secured and unsecured borrowings – net (9)(10) ​ ​ $ 5,287,934 ​ $ 5,286,834 (1) Reflects the weighted average annual contractual interest rate on the mortgages at March 31, 2023. Secured by real estate assets with a net carrying value of $476.5 million as of March 31, 2023. (2) Wholly owned subsidiaries of Omega OP are the obligor on these borrowings. (3) Excludes fees of approximately 0.65% for mortgage insurance premiums. (4) Borrowing is the debt of a consolidated joint venture. (5) Borrowing is the debt of the consolidated joint venture discussed in Note 8 – Variable Interest Entities which was formed in the first quarter of 2022. The borrowing is secured by two ALFs, which are owned by the joint venture. (6) Guaranteed by Omega OP. (7) As of March 31, 2023, borrowings under Omega’s $1.45 billion senior unsecured multicurrency revolving credit facility consisted of £16.0 million British Pounds Sterling (“GBP”). The applicable interest rate on the US Dollar tranche and on the GBP borrowings under the alternative currency tranche of the credit facility were 6.04% and 5.50% as of March 31, 2023, respectively. (8) Omega OP is the obligor on this borrowing. (9) All borrowings are direct borrowings of Parent unless otherwise noted. (10) Certain of our other secured and unsecured borrowings are subject to customary affirmative and negative covenants, including financial covenants. As of March 31, 2023 and December 31, 2022, we were in compliance with all applicable covenants for our borrowings .

DERIVATIVES AND HEDGING

DERIVATIVES AND HEDGING	3 Months Ended
	Mar. 31, 2023
DERIVATIVES AND HEDGING [Abstract]
DERIVATIVES AND HEDGING	NOTE 16 – DERIVATIVES AND HEDGING We are exposed to, among other risks, the impact of changes in foreign currency exchange rates as a result of our investments in the U.K. and interest rate risk related to our capital structure. As a matter of policy, we do not use derivatives for trading or speculative purposes. Our risk management program is designed to manage the exposure and volatility arising from these risks, and utilizes foreign currency forward contracts, interest rate swaps and debt issued in foreign currencies to offset a portion of these risks. As of March 31, 2023, we have five forward starting swaps with $400.0 million in notional value, indexed to 3-month LIBOR, that were issued at a weighted average fixed rate of 0.8675% and are designated as cash flow hedges. Additionally, we have six foreign currency forward contracts with £250.0 million in notional valued issued at a weighted average GBP-USD forward rate of 1.3641 that are designated as net investment hedges. The location and fair value of derivative instruments designated as hedges, at the respective balance sheet dates, were as follows: ​ ​ ​ ​ ​ ​ ​ March 31, ​ December 31, ​ 2023 2022 Cash flow hedges: (in thousands) Other assets $ 84,515 ​ $ 92,990 ​ ​ ​ ​ ​ ​ Net investment hedges: ​ ​ ​ ​ ​ Other assets $ 29,936 ​ $ 34,977 ​ The fair value of the forward starting swaps and foreign currency forwards is derived from observable market data such as yield curves and foreign exchange rates and represents a Level 2 measurement on the fair value hierarchy.

FINANCIAL INSTRUMENTS

FINANCIAL INSTRUMENTS	3 Months Ended
	Mar. 31, 2023
Financial Instruments [Abstract]
FINANCIAL INSTRUMENTS	NOTE 17 – FINANCIAL INSTRUMENTS The net carrying amount of cash and cash equivalents, restricted cash, contractual receivables, other assets and accrued expenses and other liabilities reported in the Consolidated Balance Sheets approximates fair value because of the short maturity of these instruments (Level 1). At March 31, 2023 and December 31, 2022, the net carrying amounts and fair values of our other financial instruments were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ December 31, 2022 ​ Carrying Fair Carrying Fair ​ Amount Value Amount Value ​ ​ (in thousands) Assets: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Investments in direct financing leases – net ​ $ 8,670 ​ $ 8,670 $ 8,503 ​ $ 8,503 Real estate loans receivable – net ​ 1,061,869 ​ ​ 1,087,327 ​ ​ 1,042,731 ​ ​ 1,080,890 Non-real estate loans receivable – net ​ 189,880 ​ ​ 190,553 ​ ​ 225,281 ​ ​ 228,498 Total ​ $ 1,260,419 ​ $ 1,286,550 ​ $ 1,276,515 ​ $ 1,317,891 Liabilities: ​ ​ ​ ​ Revolving credit facility ​ $ 19,784 ​ $ 19,784 $ 19,246 ​ $ 19,246 2023 term loan ​ ​ 2,161 ​ ​ 2,161 ​ ​ 2,161 ​ ​ 2,275 2024 term loan ​ 19,817 ​ ​ 19,750 ​ ​ 19,727 ​ ​ 19,750 OP term loan ​ 49,788 ​ ​ 50,000 ​ ​ 49,762 ​ ​ 50,000 4.375% notes due 2023 – net ​ 349,811 ​ ​ 347,763 ​ ​ 349,669 ​ ​ 347,998 4.95% notes due 2024 – net ​ 398,989 ​ ​ 395,236 ​ ​ 398,736 ​ ​ 394,256 4.50% notes due 2025 – net ​ 398,636 ​ ​ 383,068 ​ ​ 398,446 ​ ​ 388,920 5.25% notes due 2026 – net ​ 598,024 ​ ​ 588,930 ​ ​ 597,848 ​ ​ 589,104 4.50% notes due 2027 – net ​ 694,204 ​ ​ 652,666 ​ ​ 693,837 ​ ​ 657,468 4.75% notes due 2028 – net ​ 545,168 ​ ​ 510,098 ​ ​ 544,916 ​ ​ 507,425 3.625% notes due 2029 – net ​ ​ 492,192 ​ ​ 418,695 ​ ​ 491,890 ​ ​ 411,090 3.375% notes due 2031 – net ​ ​ 685,830 ​ ​ 552,510 ​ ​ 685,382 ​ ​ 540,386 3.25% notes due 2033 – net ​ ​ 690,735 ​ ​ 511,931 ​ ​ 690,506 ​ ​ 507,976 HUD mortgages – net ​ ​ 342,795 ​ ​ 265,148 ​ ​ 344,708 ​ ​ 266,161 Total ​ $ 5,287,934 ​ $ 4,717,740 ​ $ 5,286,834 ​ $ 4,702,055 ​ Fair value estimates are subjective in nature and are dependent on a number of important assumptions, including estimates of future cash flows, risks, discount rates and relevant comparable market information associated with each financial instrument (see Note 2 – Summary of Significant Accounting Policies in our Annual Report on Form 10-K The following methods and assumptions were used in estimating fair value disclosures for financial instruments. ● Real estate loans receivable: The fair value of the real estate loans receivables are estimated using a discounted cash flow analysis, using interest rates being offered for similar loans to borrowers with similar credit ratings (Level 3). ● Non-real estate loans receivable: Non-real estate loans receivable are primarily comprised of notes receivable. The fair values of notes receivable are estimated using a discounted cash flow analysis, using interest rates being offered for similar loans to borrowers with similar credit ratings (Level 3). ● Revolving credit facility, OP term loan, 2023 term loan and 2024 term loan: The carrying amount of these approximate fair value because the borrowings are interest rate adjusted. Differences between carrying value and the fair value in the table above are due to the inclusion of deferred financing costs in the carrying value. ● Senior notes: The fair value of the senior unsecured notes payable was estimated based on (Level 1) publicly available trading prices. ● HUD mortgages: The fair value of our borrowings under HUD debt agreements are estimated using an expected present value technique based on quotes obtained by HUD debt brokers (Level 2).

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	3 Months Ended
	Mar. 31, 2023
COMMITMENTS AND CONTINGENCIES [Abstract]
COMMITMENTS AND CONTINGENCIES	NOTE 18 – COMMITMENTS AND CONTINGENCIES Litigation Shareholder Litigation The Company and certain of its officers, C. Taylor Pickett, Robert O. Stephenson, and Daniel J. Booth Certain derivative actions have also been brought against the officers named in the Securities Class Action, and certain current and former directors of the Company, alleging claims relating to the matters at issue in the Securities Class Action. In 2018, Stourbridge Investments LLC, a purported stockholder of the Company, filed a derivative action purportedly on behalf of the Company in the U.S. District Court for the Southern District of New York, alleging violations of Section 14(a) of the Exchange Act and state-law claims including breach of fiduciary duty. The complaint alleges, among other things, that the named defendants are responsible for the Company’s failure to disclose the financial condition of Orianna Health Systems, the alleged non-disclosures that are also the subject of the Securities Class Action described above. The plaintiff did not make a demand on the Company to bring the action prior to filing it, but rather alleges that demand would have been futile. The case is stayed until July 25, 2023. In 2019, purported stockholder Phillip Swan by his counsel, and stockholders Tom Bradley and Sarah Smith by their counsel, filed derivative actions in the Baltimore City Circuit Court of Maryland, purportedly on behalf of the Company, asserting claims for breach of fiduciary duty, waste of corporate assets and unjust enrichment against the named defendants. Those actions were consolidated and stayed in the Maryland court pending the close of fact discovery in the Securities Class Action. Prior to filing suit, each of these stockholders had made demands on the Board of Directors in 2018 that the Company bring such lawsuits. After an investigation and due consideration, and in the exercise of its business judgment, the Board of Directors determined that it is not in the best interests of the Company to commence litigation against any current or former officers or directors based on the matters raised in the demands. In addition, in late 2020, Robert Wojcik, a purported shareholder of the Company, filed a derivative action in the U.S. District Court for the District of Maryland, purportedly on behalf of the Company, asserting violations of Section 14(a) of the Exchange Act, Sections 10(b) and 21D of the Exchange Act, as well as claims for breach of fiduciary duty, unjust enrichment, abuse of control, gross mismanagement, and waste of corporate assets. Wojcik also did not make a demand on the Company prior to filing suit. The case was stayed until 30 days after the entry of judgment or a voluntary dismissal with prejudice in the Securities Class Action. Other Gulf Coast Subordinated Debt In August 2021, we filed suit in the Circuit Court for Baltimore County (the “Court”) against the holders of certain Subordinated Debt (the “Debt Holders”) associated with our Gulf Coast master lease agreement, following an assertion by the Debt Holders that our prior exercise of offset rights in connection with Gulf Coast’s non-payment of rent had resulted in defaults under the terms of the Subordinated Debt. The suit seeks a declaratory judgment to, among other items, declare that the aggregate amount of unpaid rent due from Gulf Coast under the master lease agreement exceeds all amounts which otherwise would be due and owing by an indirect subsidiary of Omega (“Omega Obligor”) under the Subordinated Debt, and that all principal and interest due and owing under the Subordinated Debt may be (and was) offset in full as of December 31, 2021. In October 2021, the Debt Holders filed a motion to dismiss for lack of personal jurisdiction. On November 3, 2022, the Court granted the Debt Holders’ motion to dismiss for lack of personal jurisdiction, and Omega filed a timely appeal of the ruling. While Omega believes Omega Obligor is entitled to the enforcement of the offset rights sought in the action, Omega cannot predict the outcome of the declaratory judgment action, irrespective of whether (a) it is ultimately litigated in the Court if Omega Obligor prevails in its appeal or (b) if the order granting the motion to dismiss for lack of personal jurisdiction is affirmed. On or about January 19, 2023, the Debt Holders served a lawsuit against the Omega Obligor in the Superior Court of the State of Delaware, asserting claims for (i) breach of the instruments evidencing the Subordinated Debt, (ii) declaratory judgment, and (iii) unjust enrichment, all claims that are factually based on the claims that are the subject of Omega Obligor’s suit in the Court and that are now on appeal. On February 8, 2023, Omega Obligor filed a motion to dismiss or, in the alternative, to stay this action pending the outcome of the above-referenced lawsuit in Maryland. The motion is presently pending before the Delaware state court. Omega believes that the claims are baseless and is evaluating procedural and substantive legal options in connection with this recently filed suit. Other In addition to the matters above, we are subject to various other legal proceedings, claims and other actions arising out of the normal course of business. While any legal proceeding or claim has an element of uncertainty, management believes that the outcome of each lawsuit, claim or legal proceeding that is pending or threatened, or all of them combined, will not have a material adverse effect on our consolidated financial position or results of operations. Indemnification Agreements In connection with certain facility transitions, we have agreed to indemnify certain operators in certain events. As of March 31, 2023, our maximum funding commitment under these indemnification agreements was approximately $8.8 million. Claims under these indemnification agreements generally may be made within 18 months to 72 months of the transition date. These indemnification agreements were provided to certain operators in connection with facility transitions and generally would be applicable in the event that the prior operators do not perform under their transition agreements. Commitments We have committed to fund the construction of new leased and mortgaged facilities, capital improvements and other commitments. We expect the funding of these commitments to be completed over the next several years. Our remaining commitments at March 31, 2023, are outlined in the table below (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Construction and capital expenditure mortgage loan commitments $ 4,365 ​ ​ Lessor construction and capital commitments under lease agreements ​ 224,101 ​ ​ Other real estate loan commitments ​ 58,073 ​ ​ Non-real estate loan commitments ​ 95,381 ​ ​ Total remaining commitments (1) ​ $ 381,920 ​ ​ (1) Includes finance costs .

EARNINGS PER SHARE

EARNINGS PER SHARE	3 Months Ended
	Mar. 31, 2023
Earnings per Share [Abstract]
EARNINGS PER SHARE	NOTE 19 – EARNINGS PER SHARE The following tables set forth the computation of basic and diluted earnings per share: ​ ​ ​ ​ ​ ​ ​ Three Months Ended March ​ 2023 2022 ​ (in thousands, except per share amounts) Numerator: ​ ​ Net income available to common stockholders – basic $ 35,942 ​ $ 189,607 Add: net income attributable to OP Units 1,048 ​ 5,549 Net income available to common stockholders – diluted $ 36,990 ​ $ 195,156 Denominator: ​ Denominator for basic earnings per share 234,954 ​ 239,527 Effect of dilutive securities: ​ ​ ​ Common stock equivalents 1,384 ​ 963 Noncontrolling interest – Omega OP Units 6,850 ​ 7,066 Denominator for diluted earnings per share 243,188 ​ 247,556 ​ ​ ​ ​ ​ ​ Earnings per share – basic: ​ Net income available to common stockholders $ 0.15 ​ $ 0.79 Earnings per share – diluted: ​ Net income available to common stockholders $ 0.15 ​ $ 0.79 ​

SUPPLEMENTAL DISCLOSURE TO CONS

SUPPLEMENTAL DISCLOSURE TO CONSOLIDATED STATEMENTS OF CASH FLOWS	3 Months Ended
	Mar. 31, 2023
Supplemental Cash Flow Elements [Abstract]
SUPPLEMENTAL DISCLOSURE TO CONSOLIDATED STATEMENTS OF CASH FLOWS	​ NOTE 20 – SUPPLEMENTAL DISCLOSURE TO CONSOLIDATED STATEMENTS OF CASH FLOWS The following are supplemental disclosures to the Consolidated Statements of Cash Flows for the three months ended March 31, 2023 and 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended March 31, ​ ​ 2023 2022 ​ (in thousands) ​ Reconciliation of cash and cash equivalents and restricted cash: ​ ​ ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 245,182 ​ $ 491,247 ​ Restricted cash ​ 3,336 ​ 3,534 ​ Cash, cash equivalents and restricted cash at end of period ​ $ 248,518 ​ $ 494,781 ​ ​ ​ ​ ​ ​ ​ ​ ​ Supplemental information: ​ ​ ​ ​ ​ Interest paid during the period, net of amounts capitalized ​ $ 61,451 ​ $ 60,478 ​ Taxes paid during the period ​ $ 1,636 ​ $ 1,716 ​ ​ ​ ​ ​ ​ ​ ​ ​ Non-cash investing activities: ​ ​ ​ Non-cash acquisition of real estate ​ $ — ​ $ (11,133) ​ ​ ​ ​ ​ ​ ​ ​ ​ Non-cash financing activities: ​ ​ ​ Non-cash contribution from noncontrolling interest holder in consolidated joint venture ​ $ — ​ $ 2,903 ​ Change in fair value of cash flow hedges ​ $ (13,516) ​ $ 24,489 ​ Remeasurement of debt denominated in a foreign currency ​ $ 538 ​ $ (320) ​ ​

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	3 Months Ended
	Mar. 31, 2023
SUBSEQUENT EVENTS
SUBSEQUENT EVENTS	NOTE 21 – SUBSEQUENT EVENTS As discussed in Note 3 – Assets Held for Sale, Dispositions and Impairments, during the second quarter of 2023, we sold five facilities previously leased to Guardian that were classified as held for sale as of March 31, 2023 and one facility previously leased to Guardian that was not classified as held for sale as of March 31, 2023 for aggregate gross proceeds of $35.8 million. In connection with the sale of the one facility that was not classified as held for sale as of March 31, 2023, we provided $12.0 million in seller financing, collateralized by a first lien mortgage on the facility. In addition, Guardian completed the sale of the four facilities subject to the Guardian mortgage note with Omega during the second quarter of 2023. Concurrent with the sale, Omega agreed to release the mortgage liens on these facilities in exchange for a paydown of $35.2 million, which is equal to the current amortized cost, net of credit loss reserves on the Guardian mortgage note at March 31, 2023. Following the paydown in the second quarter of 2023, Guardian has no further obligations under the mortgage loan. In April 2023, Omega committed to invest $222.6 million in connection with an existing operator’s acquisition of a West Virginia based operator that owns 17 SNFs. Omega’s investment included $114.8 million for the acquisition of four of the facilities and up to $107.8 million for five loans to the operator primarily for the purpose of financing the acquisition of the remaining 13 West Virginia SNFs. Concurrent with the acquisition, Omega added the 4 acquired SNFs to the operator’s master lease with an initial cash yield of 9.5%, with 2.5% annual escalators. The weighted average interest rate of the five loans is 12%. In connection with the loans, Omega also received a 20% equity ownership in two joint ventures. On May 1, 2023, the Company acquired one SNF in West Virginia for $13.8 million and leased it to an existing operator. The SNF was added to the operator’s master lease with an initial annual cash yield of 10%, with 2.5% annual escalators.

BASIS OF PRESENTATION AND SIG_2

BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Policy)	3 Months Ended
	Mar. 31, 2023
BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES [Abstract]
Basis of Presentation and Principles of Consolidation	Basis of Presentation and Principles of Consolidation The accompanying unaudited consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and do not include all the information and notes required by U.S. generally accepted accounting principles (“GAAP”) for complete financial statements. In our opinion, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. The results of operations for the interim periods reported herein are not necessarily indicative of results to be expected for the full year. These unaudited consolidated financial statements should be read in conjunction with the financial statements and the footnotes thereto included in our Annual Report on Form 10-K Omega’s consolidated financial statements include the accounts of (i) Parent, (ii) all direct and indirect wholly owned subsidiaries of Omega, including Omega OP, (iii) other entities in which Omega or Omega OP has a majority voting interest and control and (iv) variable interest entities (“VIEs”) of which Omega is the primary beneficiary. All intercompany transactions and balances have been eliminated in consolidation, and Omega’s net earnings are reduced by the portion of net earnings attributable to noncontrolling interests.
Segments	Segments We conduct our operations and report financial results as one business segment. The presentation of financial results as one reportable segment is consistent with the way we operate our business and is consistent with the manner in which our Chief Operating Decision Maker (CODM), our Chief Executive Officer, evaluates performance and makes resource and operating decisions for the business.
Reclassification	Reclassification Certain line items on our Consolidated Statements of Operations and Consolidated Statements of Cash Flows have been reclassified to conform to the current period presentation.
Risks and Uncertainties including COVID-19	Risks and Uncertainties including COVID-19 The Company is subject to certain risks and uncertainties affecting the healthcare industry, including those that arose from the novel coronavirus (“COVID-19”) global pandemic, which disproportionately impacted the senior care sector, as well as those stemming from healthcare legislation and changing regulation by federal, state and local governments. Additionally, we are subject to risks and uncertainties as a result of changes affecting operators of nursing home facilities due to the actions of governmental agencies and insurers to limit the rising cost of healthcare services.

REAL ESTATE ASSET (Tables)

REAL ESTATE ASSET (Tables)	3 Months Ended
	Mar. 31, 2023
REAL ESTATE ASSET [Abstract]
Schedule of operating lease income	At March 31, 2023, our leased real estate properties included 660 SNFs, 175 ALFs, 19 ILFs, 16 specialty facilities and one medical office building. The following table summarizes the Company’s rental income from operating leases: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended March 31, ​ ​ 2023 ​ 2022 ​ ​ (in thousands) Rental income – operating leases ​ $ 185,327 ​ $ 213,597 Variable lease income – operating leases ​ ​ 3,750 ​ ​ 3,286 Total rental income ​ $ 189,077 ​ $ 216,883 ​
Summary of asset acquisitions	The following table summarizes the asset acquisitions that occurred during the three months ended March 31, 2023: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Number of ​ ​ ​ Total Real Estate ​ Initial ​ ​ Facilities ​ Assets Acquired Annual ​ Period ​ SNF ALF ​ Country/State ​ (in millions) ​ Cash Yield (1) ​ Q1 — 6 U.K. ​ $ 26.4 (2) 8.0 % Total — 6 ​ $ 26.4 ​ ​ (1) Initial annual cash yield reflects the initial annual contractual cash rent divided by the purchase price. (2) In connection with this acquisition, the Company recorded $9.9 million of right-of-use (“ROU”) assets and lease liabilities associated with ground leases assumed in the acquisition.

ASSETS HELD FOR SALE, DISPOSI_2

ASSETS HELD FOR SALE, DISPOSITIONS AND IMPAIRMENTS (Tables)	3 Months Ended
	Mar. 31, 2023
ASSETS HELD FOR SALE, DISPOSITIONS AND IMPAIRMENTS [Abstract]
Schedule of Properties Held-for-Sale	The following is a summary of our assets held for sale: ​ ​ ​ ​ ​ ​ ​ March 31, ​ December 31, ​ 2023 2022 Number of facilities held for sale ​ 6 ​ ​ 2 Amount of assets held for sale (in thousands) $ 25,766 ​ $ 9,456

CONTRACTUAL RECEIVABLES AND O_2

CONTRACTUAL RECEIVABLES AND OTHER RECEIVABLES AND LEASE INDUCEMENTS (Tables)	3 Months Ended
	Mar. 31, 2023
CONTRACTUAL RECEIVABLES AND OTHER RECEIVABLES AND LEASE INDUCEMENTS [Abstract]
Schedule of Net Accounts Receivable	A summary of our net receivables and lease inducements by type is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, ​ December 31, ​ ​ 2023 2022 ​ ​ (in thousands) ​ Contractual receivables – net ​ $ 7,999 ​ $ 8,228 ​ ​ ​ ​ ​ ​ ​ ​ ​ Effective yield interest receivables ​ $ 5,162 ​ $ 5,696 ​ Straight-line rent receivables ​ 179,816 ​ 166,061 ​ Lease inducements ​ 5,864 ​ 6,041 ​ Other receivables and lease inducements ​ $ 190,842 ​ $ 177,798 ​

REAL ESTATE LOANS RECEIVABLE (T

REAL ESTATE LOANS RECEIVABLE (Tables) - Mortgage Receivables and Other Real Estate Loans [Member]	3 Months Ended
	Mar. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Schedule of Investments	The principal amounts outstanding of real estate loans receivable, net of allowances, were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, ​ December 31, ​ ​ 2023 2022 ​ ​ (in thousands) ​ Mortgage notes due 2030; interest at 10.99% (1) ​ $ 508,745 $ 506,321 ​ Mortgage note due 2031; interest at 11.27% ​ ​ 73,755 ​ ​ 76,049 ​ Mortgage note due 2032; interest at 10.50% (2) ​ ​ 72,420 ​ ​ 72,420 ​ Mortgage note due 2025; interest at 7.85% ​ ​ 63,357 ​ ​ 63,811 ​ Other mortgage notes outstanding (3) ​ 17,922 ​ 12,922 ​ Mortgage notes receivable – gross ​ 736,199 ​ 731,523 ​ Allowance for credit losses on mortgage notes receivable ​ ​ (73,545) ​ ​ (83,393) ​ Mortgage notes receivable – net ​ ​ 662,654 ​ ​ 648,130 ​ Other real estate loan due 2035; interest at 7.00% ​ ​ 258,997 ​ ​ 250,500 ​ Other real estate loans due 2024; interest at 13.18% (1) ​ ​ 100,466 ​ ​ 98,440 ​ Other real estate loans due 2023-2025; interest at 12.03% (1) ​ ​ 35,647 ​ ​ 43,628 ​ Other real estate loan outstanding (4) ​ ​ 20,000 ​ ​ 20,000 ​ Leasehold mortgages and other real estate loans – gross ​ ​ 415,110 ​ ​ 412,568 ​ Allowance for credit losses on leasehold mortgages and other real estate loans ​ (15,895) ​ (17,967) ​ Leasehold mortgages and other real estate loans – net ​ ​ 399,215 ​ ​ 394,601 ​ Total real estate loans receivable – net ​ $ 1,061,869 ​ $ 1,042,731 ​ (1) Approximates the weighted average interest rate on facilities as of March 31, 2023. (2) Subsequent to quarter end, this mortgage note was extended to December 31, 2037. (3) Other mortgage notes outstanding have a weighted average interest rate of 9.00% as of March 31, 2023, with maturity dates ranging from 2023 through 2026 (with $12.9 million maturing in 2023 ). One of these mortgage notes with a principal balance of $6.4 million is past due and has been written down to the fair value of its collateral of $1.5 million. (4) As of March 31, 2023 and December 31, 2022, includes one real estate loan with an interest rate of 12.00% and a maturity date of December 2, 2027 .
Summary of Real Estate interest income	Interest revenue on real estate loans is included within interest income on the Consolidated Statements of Operations and is summarized as follows: ​ ​ ​ ​ ​ ​ ​ Three Months Ended March 31, ​ 2023 2022 ​ (in thousands) Mortgage notes – interest income $ 16,548 $ 20,549 Leasehold mortgages and other real estate loans – interest income 6,849 ​ 8,379 Total real estate loans interest income $ 23,397 ​ $ 28,928

NON-REAL ESTATE LOANS RECEIVA_2

NON-REAL ESTATE LOANS RECEIVABLE (Tables)	3 Months Ended
	Mar. 31, 2023
Non Real Estate Loans Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Schedule of Investments	Our non-real estate loans consist of fixed and variable rate loans to operators and/or principals. These loans may be either unsecured or secured by the collateral of the borrower, which may include the working capital of the borrower. As of March 31, 2023, we had 34 loans with 19 different borrowers. A summary of our non-real estate loans is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, ​ December 31, ​ ​ 2023 2022 ​ ​ ​ (in thousands) ​ Notes due 2036; interest at 5.63% ​ $ 80,991 $ 55,791 ​ Notes due 2023-2028; interest at 10.51% (1) ​ ​ 58,475 ​ ​ 55,981 ​ Notes due 2036; interest at 2.00% ​ ​ 32,308 ​ ​ 32,539 ​ Note due 2027; interest at 12.00% (2) ​ ​ — ​ ​ 39,653 ​ Note due 2024; interest at 7.50% ​ ​ 47,999 ​ ​ 47,999 ​ Other notes outstanding (3) ​ 84,672 ​ 77,186 ​ Non-real estate loans receivable – gross ​ ​ 304,445 ​ ​ 309,149 ​ Allowance for credit losses on non-real estate loans receivable ​ ​ (114,565) ​ ​ (83,868) ​ Total non-real estate loans receivable – net ​ $ 189,880 ​ $ 225,281 ​ (1) Approximates the weighted average interest rate as of March 31, 2023. (2) During the first quarter of 2023, this loan was fully repaid. (3) Other notes outstanding have a weighted average interest rate of 7.00% as of March 31, 2023, with maturity dates ranging from 2023 through 2030 (with $17.2 million maturing in 2023 ). We have two loans within other notes outstanding with principal of $5.0 million and $4.2 million, respectively, that were to mature in 2022 but remained outstanding as of March 31, 2023. We have fully reserved the $5.0 million loan and have written down the $4.2 million loan down to the fair value of its collateral of $1.0 million.

ALLOWANCE FOR CREDIT LOSSES (Ta

ALLOWANCE FOR CREDIT LOSSES (Tables)	3 Months Ended
	Mar. 31, 2023
Receivables [Abstract]
Schedule of expected credit loss	A rollforward of our allowance for credit losses for the three months ended March 31, 2023 is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Rating ​ Financial Statement Line Item Allowance for Credit Loss as of December 31, 2022 ​ Provision (recovery) for Credit Loss for the three months ended March 31, 2023 ​ Write-offs charged against allowance for the three months ended March 31, 2023 ​ Other additions to the allowance for the three months ended March 31, 2023 ​ Allowance for Credit Loss as of March 31, 2023 ​ ​ ​ (in thousands) 1 ​ Real estate loan receivable $ 162 ​ $ 351 ​ $ — ​ $ — ​ $ 513 2 ​ Real estate loans receivable ​ 157 ​ ​ (111) ​ ​ — ​ ​ — ​ ​ 46 3 ​ Real estate loans receivable ​ 15,110 ​ ​ (421) ​ ​ — ​ ​ — ​ ​ 14,689 4 ​ Real estate loans receivable ​ 33,666 ​ ​ (9,445) ​ ​ — ​ ​ — ​ ​ 24,221 6 ​ Real estate loans receivable ​ 52,265 ​ ​ (2,294) ​ ​ — ​ ​ — ​ ​ 49,971 ​ ​ Sub-total ​ 101,360 ​ ​ (11,920) ​ ​ — ​ ​ — ​ ​ 89,440 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 5 ​ Investment in direct financing leases ​ 2,816 ​ ​ (193) ​ ​ — ​ ​ — ​ ​ 2,623 ​ ​ Sub-total ​ 2,816 ​ ​ (193) ​ ​ — ​ ​ — ​ ​ 2,623 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2 ​ Non-real estate loans receivable ​ 859 ​ ​ (567) ​ ​ — ​ ​ — ​ ​ 292 3 ​ Non-real estate loans receivable ​ 2,079 ​ ​ (1,727) ​ ​ — ​ ​ — ​ ​ 352 4 ​ Non-real estate loans receivable ​ 634 ​ ​ (361) ​ ​ — ​ ​ — ​ ​ 273 5 ​ Non-real estate loans receivable ​ 18,619 ​ ​ 66 ​ ​ — ​ ​ 25,200 (1) ​ 43,885 6 ​ Non-real estate loans receivable ​ 61,677 ​ ​ 8,086 ​ ​ — ​ ​ — ​ ​ 69,763 ​ ​ Sub-total ​ 83,868 ​ ​ 5,497 ​ ​ — ​ ​ 25,200 ​ ​ 114,565 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2 ​ Off-balance sheet non-real estate loan commitments ​ 207 ​ ​ (96) ​ ​ — ​ ​ — ​ ​ 111 3 ​ Off-balance sheet non-real estate loan commitments ​ 29 ​ ​ (23) ​ ​ — ​ ​ — ​ ​ 6 3 ​ Off-balance sheet real estate loan commitments ​ — ​ ​ 2,660 ​ ​ — ​ ​ — ​ ​ 2,660 4 ​ Off-balance sheet real estate loan commitments ​ 84 ​ ​ (62) ​ ​ — ​ ​ — ​ ​ 22 6 ​ Off-balance sheet non-real estate loan commitments ​ — ​ ​ 80 ​ ​ — ​ ​ — ​ ​ 80 ​ ​ Sub-total ​ 320 ​ ​ 2,559 ​ ​ — ​ ​ — ​ ​ 2,879 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total $ 188,364 ​ $ (4,057) ​ $ — ​ $ 25,200 ​ $ 209,507 (1) This amount relates to the additional $25.2 million allowance recorded during the first quarter of 2023 in order to reserve the aggregate deferred rent amount that is included within Agemo Replacement Loan B. See Note 6 – Non-Real Estate Loans Receivable for additional details. A rollforward of our allowance for credit losses for the three months ended March 31, 2022 is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Rating ​ Financial Statement Line Item Allowance for Credit Loss at December 31, 2021 ​ Provision (recovery) for Credit Loss for the three months ended March 31, 2022 ​ Write-offs charged against allowance for the three months ended March 31, 2022 ​ Allowance for Credit Loss as of March 31, 2022 ​ ​ ​ (in thousands) 2 ​ Real estate loans receivable $ 14 ​ $ 48 ​ $ — ​ $ 62 3 ​ Real estate loans receivable ​ 5,367 ​ ​ 983 ​ ​ — ​ ​ 6,350 4 ​ Real estate loans receivable ​ 20,577 ​ ​ 1,634 ​ ​ — ​ ​ 22,211 5 ​ Real estate loans receivable ​ 136 ​ ​ (23) ​ ​ — ​ ​ 113 6 ​ Real estate loans receivable ​ 56,480 ​ ​ (5,135) (1) ​ — ​ ​ 51,345 ​ ​ Sub-total ​ 82,574 ​ ​ (2,493) ​ ​ — ​ ​ 80,081 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 3 ​ Investment in direct financing leases ​ 530 ​ ​ 5 ​ ​ — ​ ​ 535 ​ ​ Sub-total ​ 530 ​ ​ 5 ​ ​ — ​ ​ 535 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2 ​ Non-real estate loans receivable ​ 29 ​ ​ 52 ​ ​ — ​ ​ 81 3 ​ Non-real estate loans receivable ​ 1,206 ​ ​ 205 ​ ​ — ​ ​ 1,411 4 ​ Non-real estate loans receivable ​ 56 ​ ​ 475 ​ ​ — ​ ​ 531 5 ​ Non-real estate loans receivable ​ 7,861 ​ ​ 4,704 (2) ​ — ​ ​ 12,565 6 ​ Non-real estate loans receivable ​ 51,269 ​ ​ (730) ​ ​ — ​ ​ 50,539 ​ ​ Sub-total ​ 60,421 ​ ​ 4,706 ​ ​ — ​ ​ 65,127 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2 ​ Off-balance sheet non-real estate loan commitments ​ 7 ​ ​ 2 ​ ​ — ​ ​ 9 3 ​ Off-balance sheet non-real estate loan commitments ​ 207 ​ ​ 20 ​ ​ — ​ ​ 227 3 ​ Off-balance sheet real estate loan commitments ​ 251 ​ ​ (151) ​ ​ — ​ ​ 100 4 ​ Off-balance sheet non-real estate loan commitments ​ 216 ​ ​ (78) ​ ​ — ​ ​ 138 4 ​ Off-balance sheet real estate loan commitments ​ 117 ​ ​ (106) ​ ​ — ​ ​ 11 6 ​ Off-balance sheet non-real estate loan commitments ​ 143 ​ ​ (81) ​ ​ — ​ ​ 62 ​ ​ ​ ​ 941 ​ ​ (394) ​ ​ — ​ ​ 547 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total $ 144,466 ​ $ 1,824 ​ $ — ​ $ 146,290 (1) This amount relates to a recovery recorded on the Guardian mortgage loan during the first quarter of 2022. (2) This provision includes an additional $4.7 million allowance recorded on the Agemo WC Loan during the first quarter of 2022.
Schedule by segment balance by vintage and credit quality indicator	A summary of our amortized cost basis by year of origination and credit quality indicator is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Rating Financial Statement Line Item 2023 2022 2021 2020 2019 2018 2017 & older Revolving Loans Balance as of March 31, 2023 ​ ​ (in thousands) 1 Real estate loans receivable $ — $ 20,000 $ — $ — $ — $ — $ 63,357 $ — $ 83,357 2 Real estate loans receivable ​ — ​ — ​ — ​ 21,325 ​ — ​ — ​ — ​ — ​ 21,325 3 Real estate loans receivable ​ 5,000 ​ 34,600 ​ 72,420 ​ — ​ — ​ — ​ 1,047 ​ 258,997 ​ 372,064 4 Real estate loans receivable ​ — ​ 186 ​ 30,308 ​ 89,512 ​ 5,099 ​ 129,580 ​ 333,201 ​ — ​ 587,886 5 Real estate loans receivable ​ — ​ — ​ — ​ — ​ — ​ — ​ — ​ — ​ — 6 Real estate loans receivable ​ — ​ — ​ — ​ — ​ — ​ — ​ 86,677 ​ — ​ 86,677 ​ Sub-total ​ 5,000 ​ 54,786 ​ 102,728 ​ 110,837 ​ 5,099 ​ 129,580 ​ 484,282 ​ 258,997 ​ 1,151,309 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 5 Investment in direct financing leases ​ — ​ — ​ — ​ — ​ — ​ — ​ 11,293 ​ — ​ 11,293 ​ Sub-total ​ — ​ — ​ — ​ — ​ — ​ — ​ 11,293 ​ — ​ 11,293 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2 Non-real estate loans receivable ​ — ​ — ​ — ​ — ​ — ​ — ​ — ​ 94,197 ​ 94,197 3 Non-real estate loans receivable ​ 3,092 ​ 23,101 ​ — ​ — ​ 4,533 ​ 10,800 ​ — ​ 9,550 ​ 51,076 4 Non-real estate loans receivable ​ — ​ — ​ — ​ — ​ 1,810 ​ — ​ 1,000 ​ 25,000 ​ 27,810 5 Non-real estate loans receivable ​ — ​ 1,126 ​ — ​ — ​ 2,226 ​ 49,748 ​ — ​ — ​ 53,100 6 Non-real estate loans receivable ​ 5,541 ​ 24,457 ​ 7,851 ​ — ​ — ​ 4,183 ​ 31,243 ​ 4,987 ​ 78,262 ​ Sub-total ​ 8,633 ​ 48,684 ​ 7,851 ​ — ​ 8,569 ​ 64,731 ​ 32,243 ​ 133,734 ​ 304,445 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total $ 13,633 $ 103,470 $ 110,579 $ 110,837 $ 13,668 $ 194,311 $ 527,818 $ 392,731 $ 1,467,047 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year to date gross write-offs $ — $ — $ — $ — $ — $ — $ — $ — $ —

VARIABLE INTEREST ENTITIES (Tab

VARIABLE INTEREST ENTITIES (Tables)	3 Months Ended
	Mar. 31, 2023
Variable Interest Entities [Abstract]
Schedule of Variable Interest Entities	Below is a summary of our assets, liabilities, collateral and maximum exposure to loss associated with these unconsolidated VIEs as of March 31, 2023 and December 31, 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, ​ December 31, ​ ​ ​ 2023 ​ 2022 ​ ​ ​ (in thousands) ​ Assets ​ ​ ​ ​ ​ ​ ​ Real estate assets – net ​ $ 1,066,967 ​ $ 982,721 ​ Real estate loans receivable – net ​ 283,997 ​ ​ 270,500 ​ Non-real estate loans receivable – net ​ 5,929 ​ ​ 5,929 ​ Contractual receivables – net ​ 114 ​ ​ 114 ​ Other assets ​ ​ — ​ ​ 1,499 ​ Total assets ​ 1,357,007 ​ 1,260,763 ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities ​ ​ ​ ​ ​ ​ ​ Net in-place lease liability ​ ​ (273) ​ ​ (280) ​ Security deposit ​ ​ (5,082) ​ ​ (4,828) ​ Contingent liability ​ ​ (43,915) ​ ​ (43,915) ​ Other liabilities ​ ​ (92) ​ ​ (1,499) ​ Total liabilities ​ (49,362) ​ (50,522) ​ ​ ​ ​ ​ ​ ​ ​ ​ Collateral ​ ​ ​ Personal guarantee ​ (48,000) ​ ​ (48,000) ​ Other collateral (1) ​ (1,066,967) ​ ​ (982,721) ​ Total collateral ​ (1,114,967) ​ ​ (1,030,721) ​ ​ ​ ​ ​ ​ ​ ​ ​ Maximum exposure to loss ​ $ 192,678 ​ $ 179,520 ​ (1) Amount excludes accounts receivable that Omega has a security interest in as collateral under the two working capital loans with operators that are unconsolidated VIEs. The fair value of the accounts receivable available to Omega was $5.9 million as of March 31, 2023 and December 31, 2022.
Schedule of Variable Interest Entities revenue	The table below reflects our total revenues from the operators that are considered unconsolidated VIEs for the three months ended March 31, 2023 and 2022: ​ ​ ​ ​ ​ ​ ​ Three Months Ended March 31, ​ 2023 ​ 2022 ​ (in thousands) Revenue ​ ​ Rental income $ 9,838 ​ $ 20,863 Interest income 2,106 ​ 3,766 Total $ 11,944 ​ $ 24,629

INVESTMENT IN JOINT VENTURES (T

INVESTMENT IN JOINT VENTURES (Tables)	3 Months Ended
	Mar. 31, 2023
INVESTMENTS IN JOINT VENTURES [Abstract]
Schedule of equity method investments	The following is a summary of our investments in unconsolidated joint ventures (dollars in thousands): The following table reflects our income (loss) from unconsolidated joint ventures for the three months ended March 31, 2023 and 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended March 31, Entity ​ 2023 2022 ​ ​ (in thousands) Second Spring Healthcare Investments ​ $ 289 ​ $ 285 Second Spring II LLC (1) ​ ​ — ​ ​ (2) Lakeway Realty, L.L.C. ​ ​ 679 ​ 661 Cindat Joint Venture ​ 1 ​ 735 OMG Senior Housing, LLC ​ (220) ​ (83) OH CHS SNP, Inc. ​ 82 ​ 27 Total ​ $ 831 ​ $ 1,623 (1) The assets held by this joint venture have been liquidated and we have no remaining operations related to this joint venture.

GOODWILL AND OTHER INTANGIBLES

GOODWILL AND OTHER INTANGIBLES (Tables)	3 Months Ended
	Mar. 31, 2023
Goodwill and Other Intangibles [Abstract]
Schedule of Reconciliation of Goodwill	The following is a summary of our goodwill as of March 31, 2023 and December 31, 2022: ​ ​ ​ ​ ​ ​ (in thousands) Balance as of December 31, 2022 ​ $ 643,151 Foreign currency translation ​ 349 Balance as of March 31, 2023 ​ $ 643,500
Schedule of Intangibles	​ ​ ​ ​ ​ ​ (in thousands) Balance as of December 31, 2022 ​ $ 643,151 Foreign currency translation ​ 349 Balance as of March 31, 2023 ​ $ 643,500

STOCKHOLDERS EQUITY (Tables)

STOCKHOLDERS EQUITY (Tables)	3 Months Ended
	Mar. 31, 2023
Stockholders Equity [Abstract]
Schedule of dividend reinvestment and common stock purchase plan	The following is a summary of the shares issued under the Dividend Reinvestment and Common Stock Purchase Plan for the three months ended March 31, 2023 and 2022 (in millions): ​ ​ ​ ​ ​ Period Ended Shares issued ​ Gross Proceeds March 31, 2022 0.1 ​ $ 2.3 March 31, 2023 0.1 ​ ​ 2.3
Schedule of common stock dividends	The following is a summary of our declared cash dividends on common stock: ​ ​ ​ ​ ​ ​ Record ​ Payment ​ Dividend per Date Date Common Share February 6, 2023 ​ February 15, 2023 ​ $ 0.67 May 1, 2023 ​ May 15, 2023 ​ ​ 0.67
Schedule of accumulated other comprehensive income (loss)	The following is a summary of our accumulated other comprehensive income (loss), net of tax where applicable: ​ ​ ​ ​ ​ ​ ​ As of and for the ​ Three Months Ended March 31, ​ 2023 2022 ​ (in thousands) Foreign Currency Translation: ​ ​ Beginning balance $ (85,004) ​ $ (24,012) Translation gain (loss) 15,750 ​ (14,630) Realized gain (loss) 84 ​ (26) Ending balance (69,170) ​ (38,668) ​ ​ ​ ​ ​ ​ Derivative Instruments: ​ ​ ​ Cash flow hedges: ​ ​ ​ Beginning balance 86,356 ​ 30,407 Unrealized (loss) gain (10,624) ​ 18,612 Realized gain (1) 1,074 ​ ​ 966 Ending balance 76,806 ​ 49,985 Net investment hedges: ​ ​ ​ Beginning balance 18,634 ​ (9,588) Unrealized (loss) gain (5,041) ​ 3,847 Ending balance 13,593 ​ (5,741) Total accumulated other comprehensive income before noncontrolling interest 21,229 ​ 5,576 Add: portion included in noncontrolling interest 304 ​ 742 Total accumulated other comprehensive income for Omega $ 21,533 ​ $ 6,318 (1) Recorded in interest expense on the Consolidated Statements of Operations.

TAXES (Tables)

TAXES (Tables)	3 Months Ended
	Mar. 31, 2023
Taxes [Abstract]
Schedule of components of income tax expense	The following is a summary of our provision for income taxes: ​ ​ ​ ​ ​ ​ ​ Three Months Ended March 31, ​ 2023 2022 ​ (in millions) Federal, state and local income tax expense $ 0.3 $ 0.3 Foreign income tax (benefit) expense (1) ​ (1.6) ​ 0.9 Total income tax (benefit) expense (2) $ (1.3) ​ $ 1.2 (1) The benefit for the three months ended March 31, 2023 primarily relates to adjustments made to our deferred tax assets and liabilities as a result of the majority of our U.K. portfolio electing to enter into the U.K. REIT regime effective April 1, 2023. (2) The above amounts do not include gross income receipts or franchise taxes payable to certain states and municipalities.
Schedule of deferred tax assets and liabilities	The following is a summary of deferred tax assets and liabilities (which are recorded in other assets and accrued expenses and other liabilities in our Consolidated Balance Sheets): ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, ​ December 31, ​ 2023 2022 ​ ​ (in thousands) U.S. Federal net operating loss carryforward ​ $ 2,138 ​ $ 2,138 Valuation allowance on deferred tax asset ​ (2,138) ​ (2,138) Foreign net operating loss carryforward ​ ​ 10,782 ​ ​ 11,268 Foreign deferred tax liability (1) ​ — ​ (5,373) Net deferred tax asset ​ $ 10,782 ​ $ 5,895 ​ ​ ​ ​ ​ ​ ​ Foreign deferred tax liability (2) ​ $ 1,818 ​ $ — Net deferred tax liability ​ $ 1,818 ​ $ — (1) The deferred tax liability primarily resulted from inherited basis differences resulting from our acquisition of entities in the U.K. Subsequent adjustments to these accounts result from GAAP to tax differences related to depreciation, indexation and revenue recognition. The foreign deferred tax liabilities were eliminated upon the majority of our U.K. portfolio entering the U.K. REIT regime. (2) The deferred tax liability resulted from book to tax differences recorded in the U.S. relating to depreciation and revenue recognition in the U.K. recognized upon the majority of our U.K. portfolio entering the U.K. REIT regime.

BORROWING ACTIVITIES AND ARRA_2

BORROWING ACTIVITIES AND ARRANGEMENTS (Tables)	3 Months Ended
	Mar. 31, 2023
BORROWING ACTIVITIES AND ARRANGEMENTS [Abstract]
Schedule of Borrowings	The following is a summary of our borrowings: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Annual ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest Rate ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ as of ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, ​ ​ March 31, ​ December 31, ​ Maturity 2023 ​ 2023 2022 ​ ​ ​ ​ (in thousands) Secured borrowings: ​ ​ ​ HUD mortgages (1)(2) ​ 2046 - 2052 ​ 3.01 % (3) ​ $ 342,795 ​ $ 344,708 2023 term loan (4) 2023 8.50 % ​ ​ 2,161 ​ ​ 2,161 2024 term loan (5) 2024 10.17 % ​ ​ 19,817 ​ ​ 19,727 Total secured borrowings ​ ​ ​ ​ ​ ​ ​ 364,773 ​ ​ 366,596 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unsecured borrowings: ​ ​ ​ Revolving credit facility (6)(7) 2025 6.04 % ​ 19,784 ​ 19,246 ​ ​ ​ ​ ​ ​ ​ ​ 19,784 ​ ​ 19,246 Senior notes and other unsecured borrowings: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 notes (6) 2023 4.375 % ​ 350,000 ​ 350,000 2024 notes (6) 2024 4.950 % ​ 400,000 ​ 400,000 2025 notes (6) 2025 4.500 % ​ 400,000 ​ 400,000 2026 notes (6) 2026 5.250 % ​ 600,000 ​ 600,000 2027 notes (6) 2027 4.500 % ​ 700,000 ​ 700,000 2028 notes (6) 2028 4.750 % ​ 550,000 ​ 550,000 2029 notes (6) 2029 3.625 % ​ 500,000 ​ 500,000 2031 notes (6) ​ 2031 ​ 3.375 % ​ ​ 700,000 ​ ​ 700,000 2033 notes (6) ​ 2033 ​ 3.250 % ​ ​ 700,000 ​ ​ 700,000 OP term loan (8) 2025 6.29 % ​ 50,000 ​ 50,000 Deferred financing costs – net ​ ​ ​ (21,099) ​ (22,276) Discount – net ​ ​ (25,524) ​ (26,732) Total senior notes and other unsecured borrowings – net ​ ​ 4,903,377 ​ 4,900,992 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total unsecured borrowings – net ​ ​ 4,923,161 ​ 4,920,238 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total secured and unsecured borrowings – net (9)(10) ​ ​ $ 5,287,934 ​ $ 5,286,834 (1) Reflects the weighted average annual contractual interest rate on the mortgages at March 31, 2023. Secured by real estate assets with a net carrying value of $476.5 million as of March 31, 2023. (2) Wholly owned subsidiaries of Omega OP are the obligor on these borrowings. (3) Excludes fees of approximately 0.65% for mortgage insurance premiums. (4) Borrowing is the debt of a consolidated joint venture. (5) Borrowing is the debt of the consolidated joint venture discussed in Note 8 – Variable Interest Entities which was formed in the first quarter of 2022. The borrowing is secured by two ALFs, which are owned by the joint venture. (6) Guaranteed by Omega OP. (7) As of March 31, 2023, borrowings under Omega’s $1.45 billion senior unsecured multicurrency revolving credit facility consisted of £16.0 million British Pounds Sterling (“GBP”). The applicable interest rate on the US Dollar tranche and on the GBP borrowings under the alternative currency tranche of the credit facility were 6.04% and 5.50% as of March 31, 2023, respectively. (8) Omega OP is the obligor on this borrowing. (9) All borrowings are direct borrowings of Parent unless otherwise noted. (10) Certain of our other secured and unsecured borrowings are subject to customary affirmative and negative covenants, including financial covenants. As of March 31, 2023 and December 31, 2022, we were in compliance with all applicable covenants for our borrowings .

DERIVATIVES AND HEDGING (Tables

DERIVATIVES AND HEDGING (Tables)	3 Months Ended
	Mar. 31, 2023
DERIVATIVES AND HEDGING [Abstract]
Location and the fair value of derivative instruments designated as hedges	The location and fair value of derivative instruments designated as hedges, at the respective balance sheet dates, were as follows: ​ ​ ​ ​ ​ ​ ​ March 31, ​ December 31, ​ 2023 2022 Cash flow hedges: (in thousands) Other assets $ 84,515 ​ $ 92,990 ​ ​ ​ ​ ​ ​ Net investment hedges: ​ ​ ​ ​ ​ Other assets $ 29,936 ​ $ 34,977 ​

FINANCIAL INSTRUMENTS (Tables)

FINANCIAL INSTRUMENTS (Tables)	3 Months Ended
	Mar. 31, 2023
Financial Instruments [Abstract]
Schedule of Financial Instruments	At March 31, 2023 and December 31, 2022, the net carrying amounts and fair values of our other financial instruments were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ December 31, 2022 ​ Carrying Fair Carrying Fair ​ Amount Value Amount Value ​ ​ (in thousands) Assets: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Investments in direct financing leases – net ​ $ 8,670 ​ $ 8,670 $ 8,503 ​ $ 8,503 Real estate loans receivable – net ​ 1,061,869 ​ ​ 1,087,327 ​ ​ 1,042,731 ​ ​ 1,080,890 Non-real estate loans receivable – net ​ 189,880 ​ ​ 190,553 ​ ​ 225,281 ​ ​ 228,498 Total ​ $ 1,260,419 ​ $ 1,286,550 ​ $ 1,276,515 ​ $ 1,317,891 Liabilities: ​ ​ ​ ​ Revolving credit facility ​ $ 19,784 ​ $ 19,784 $ 19,246 ​ $ 19,246 2023 term loan ​ ​ 2,161 ​ ​ 2,161 ​ ​ 2,161 ​ ​ 2,275 2024 term loan ​ 19,817 ​ ​ 19,750 ​ ​ 19,727 ​ ​ 19,750 OP term loan ​ 49,788 ​ ​ 50,000 ​ ​ 49,762 ​ ​ 50,000 4.375% notes due 2023 – net ​ 349,811 ​ ​ 347,763 ​ ​ 349,669 ​ ​ 347,998 4.95% notes due 2024 – net ​ 398,989 ​ ​ 395,236 ​ ​ 398,736 ​ ​ 394,256 4.50% notes due 2025 – net ​ 398,636 ​ ​ 383,068 ​ ​ 398,446 ​ ​ 388,920 5.25% notes due 2026 – net ​ 598,024 ​ ​ 588,930 ​ ​ 597,848 ​ ​ 589,104 4.50% notes due 2027 – net ​ 694,204 ​ ​ 652,666 ​ ​ 693,837 ​ ​ 657,468 4.75% notes due 2028 – net ​ 545,168 ​ ​ 510,098 ​ ​ 544,916 ​ ​ 507,425 3.625% notes due 2029 – net ​ ​ 492,192 ​ ​ 418,695 ​ ​ 491,890 ​ ​ 411,090 3.375% notes due 2031 – net ​ ​ 685,830 ​ ​ 552,510 ​ ​ 685,382 ​ ​ 540,386 3.25% notes due 2033 – net ​ ​ 690,735 ​ ​ 511,931 ​ ​ 690,506 ​ ​ 507,976 HUD mortgages – net ​ ​ 342,795 ​ ​ 265,148 ​ ​ 344,708 ​ ​ 266,161 Total ​ $ 5,287,934 ​ $ 4,717,740 ​ $ 5,286,834 ​ $ 4,702,055

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Tables)	3 Months Ended
	Mar. 31, 2023
COMMITMENTS AND CONTINGENCIES [Abstract]
Schedule of remaining commitments	We expect the funding of these commitments to be completed over the next several years. Our remaining commitments at March 31, 2023, are outlined in the table below (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Construction and capital expenditure mortgage loan commitments $ 4,365 ​ ​ Lessor construction and capital commitments under lease agreements ​ 224,101 ​ ​ Other real estate loan commitments ​ 58,073 ​ ​ Non-real estate loan commitments ​ 95,381 ​ ​ Total remaining commitments (1) ​ $ 381,920 ​ ​ (1) Includes finance costs .

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	3 Months Ended
	Mar. 31, 2023
Earnings per Share [Abstract]
Schedule of Computation of Basic and Diluted Earnings per Share	The following tables set forth the computation of basic and diluted earnings per share: ​ ​ ​ ​ ​ ​ ​ Three Months Ended March ​ 2023 2022 ​ (in thousands, except per share amounts) Numerator: ​ ​ Net income available to common stockholders – basic $ 35,942 ​ $ 189,607 Add: net income attributable to OP Units 1,048 ​ 5,549 Net income available to common stockholders – diluted $ 36,990 ​ $ 195,156 Denominator: ​ Denominator for basic earnings per share 234,954 ​ 239,527 Effect of dilutive securities: ​ ​ ​ Common stock equivalents 1,384 ​ 963 Noncontrolling interest – Omega OP Units 6,850 ​ 7,066 Denominator for diluted earnings per share 243,188 ​ 247,556 ​ ​ ​ ​ ​ ​ Earnings per share – basic: ​ Net income available to common stockholders $ 0.15 ​ $ 0.79 Earnings per share – diluted: ​ Net income available to common stockholders $ 0.15 ​ $ 0.79

SUPPLEMENTAL DISCLOSURE TO CO_2

SUPPLEMENTAL DISCLOSURE TO CONSOLIDATED STATEMENTS OF CASH FLOWS (Tables)	3 Months Ended
	Mar. 31, 2023
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Schedule of Cash Flow Supplemental Disclosures	The following are supplemental disclosures to the Consolidated Statements of Cash Flows for the three months ended March 31, 2023 and 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended March 31, ​ ​ 2023 2022 ​ (in thousands) ​ Reconciliation of cash and cash equivalents and restricted cash: ​ ​ ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 245,182 ​ $ 491,247 ​ Restricted cash ​ 3,336 ​ 3,534 ​ Cash, cash equivalents and restricted cash at end of period ​ $ 248,518 ​ $ 494,781 ​ ​ ​ ​ ​ ​ ​ ​ ​ Supplemental information: ​ ​ ​ ​ ​ Interest paid during the period, net of amounts capitalized ​ $ 61,451 ​ $ 60,478 ​ Taxes paid during the period ​ $ 1,636 ​ $ 1,716 ​ ​ ​ ​ ​ ​ ​ ​ ​ Non-cash investing activities: ​ ​ ​ Non-cash acquisition of real estate ​ $ — ​ $ (11,133) ​ ​ ​ ​ ​ ​ ​ ​ ​ Non-cash financing activities: ​ ​ ​ Non-cash contribution from noncontrolling interest holder in consolidated joint venture ​ $ — ​ $ 2,903 ​ Change in fair value of cash flow hedges ​ $ (13,516) ​ $ 24,489 ​ Remeasurement of debt denominated in a foreign currency ​ $ 538 ​ $ (320) ​

BASIS OF PRESENTATION AND SIG_3

BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Detail) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) facility segment $ / shares	Dec. 31, 2022 USD ($) $ / shares	Mar. 31, 2022 USD ($) $ / shares
Basis Of Presentation And Significant Accounting Policies [Line Items]
Number of reportable segment | segment	1
Number of Operating Segments | segment	1
Impairment of Real Estate	$ 38,988		$ 3,511
Cash dividend (per share) | $ / shares	$ 0.67	$ 0.67	$ 0.67
Rental income	$ 189,077		$ 216,883
Real estate tax expense	$ 3,997		$ 3,603
Number of real estate properties | facility	931
Real estate assets - net	$ 6,438,035	$ 6,537,491
Interest receivable	5,162	5,696
Unsecured Debt [Member] | Omega OP Term Loan Facility
Basis Of Presentation And Significant Accounting Policies [Line Items]
Other Loans Payable	50,000	$ 50,000
Revolving Credit Facility | Unsecured Debt [Member]
Basis Of Presentation And Significant Accounting Policies [Line Items]
Credit facility, borrowing capacity	$ 1,450,000
Omega OP Units
Basis Of Presentation And Significant Accounting Policies [Line Items]
Ownership by parent	97%
Ownership by noncontrolling interest	3%
Guardian [Member] | Facilities Intended To Sell Per Agreement [Member]
Basis Of Presentation And Significant Accounting Policies [Line Items]
Number of real estate properties | facility	5

REAL ESTATE ASSETS (Narrative)

REAL ESTATE ASSETS (Narrative) (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($) facility	Mar. 31, 2022 USD ($)
Real Estate Properties [Line Items]
Number of Facilities	931
Payments for construction in progress and capital improvement programs | $	$ 10.1	$ 18.2
Skilled Nursing Facilities [Member]
Real Estate Properties [Line Items]
Number of Facilities	661
Assisted Living Facilities [Member]
Real Estate Properties [Line Items]
Number of Facilities	175
Independent Living Facilities [Member]
Real Estate Properties [Line Items]
Number of Facilities	19
Medical Office Building [Member]
Real Estate Properties [Line Items]
Number of Facilities	1
Facilities Leased | Skilled Nursing Facilities [Member]
Real Estate Properties [Line Items]
Number of Facilities	660
Facilities Leased | Assisted Living Facilities [Member]
Real Estate Properties [Line Items]
Number of Facilities	175
Facilities Leased | Independent Living Facilities [Member]
Real Estate Properties [Line Items]
Number of Facilities	19
Facilities Leased | Specialty Facility
Real Estate Properties [Line Items]
Number of Facilities	16
Facilities Leased | Medical Office Building [Member]
Real Estate Properties [Line Items]
Number of Facilities	1

REAL ESTATE ASSETS (Lessor Disc

REAL ESTATE ASSETS (Lessor Disclosure) (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) facility	Mar. 31, 2022 USD ($)
Lessor, Lease, Description [Line Items]
Number of real estate properties | facility	931
Operating Lease, Lease Income [Abstract]
Rental income - operating leases	$ 185,327	$ 213,597
Variable lease income - operating leases	3,750	3,286
Total rental income	$ 189,077	$ 216,883

REAL ESTATE ASSETS (Schedule of

REAL ESTATE ASSETS (Schedule of Significant Acquisitions) (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) property facility	Mar. 01, 2023 facility	Dec. 31, 2022 USD ($) facility	Mar. 31, 2022 facility
Real Estate Properties [Line Items]
Number of real estate properties	931
Total Value of Real Estate Assets Acquired | $	$ 26,400
Deferred tax assets related to net operating loss carryforwards | $	10,782		$ 11,268
Deferred income tax liability | $	1,818
Real estate investments - net | $	6,438,035		6,537,491
United Kingdom
Real Estate Properties [Line Items]
Total Value of Real Estate Assets Acquired | $	$ 26,400
Initial Annual Cash Yield (%)	8%
Non Cash Lease Liability Ground Lease | $	$ 9,900
NonCash Right of Use Ground Lease | $	9,900
4 of 7 Facilities | Exchange Accommodation Titleholders [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Real Estate Properties [Line Items]
Real estate investments - net | $	$ 54,600		55,200
Cash | $			$ 23,900
Skilled Nursing Facilities [Member]
Real Estate Properties [Line Items]
Number of real estate properties	661
Assisted Living Facilities [Member]
Real Estate Properties [Line Items]
Number of real estate properties	175
Assisted Living Facilities [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Real Estate Properties [Line Items]
Number of real estate properties				2
Specialty [Member]
Real Estate Properties [Line Items]
Number of real estate properties | property	16
Medical Office Building [Member]
Real Estate Properties [Line Items]
Number of real estate properties	1
Facilities Acquired | Exchange Accommodation Titleholders [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Real Estate Properties [Line Items]
Number of real estate properties			7
Facilities Acquired | Assisted Living Facilities [Member]
Real Estate Properties [Line Items]
Number of real estate properties	6
Facilities Acquired | Assisted Living Facilities [Member] | United Kingdom
Real Estate Properties [Line Items]
Number of real estate properties	6
Facilities Acquired Acquisition Completed [Member] | 3 of 7 Facilities | Exchange Accommodation Titleholders [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Real Estate Properties [Line Items]
Number of real estate properties	3
Facilities Acquired Acquisition Pending [Member] | 4 of 7 Facilities | Exchange Accommodation Titleholders [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Real Estate Properties [Line Items]
Number of real estate properties	4
Facilities Transitioned to Other Operators [Member]
Real Estate Properties [Line Items]
Number of real estate properties	20	14		6

ASSETS HELD FOR SALE, DISPOSI_3

ASSETS HELD FOR SALE, DISPOSITIONS AND IMPAIRMENTS (Narrative) (Details) $ in Thousands		1 Months Ended	3 Months Ended			12 Months Ended
	Mar. 31, 2022 USD ($) facility	Dec. 31, 2022 USD ($) facility	Jun. 30, 2023 USD ($) facility	Mar. 31, 2023 USD ($) facility	Mar. 31, 2022 USD ($) facility	Dec. 31, 2022 USD ($) facility	Dec. 31, 2021 facility
Number of real estate properties | facility				931
Impairment on real estate properties				$ 38,988	$ 3,511
Accrued Expenses and Other Liabilities		$ 315,047		316,661		$ 315,047
Non Real Estate Loans Receivable [Member]
Financing receivable, gross		$ 309,149		$ 304,445		$ 309,149
Medical Office Building [Member]
Number of real estate properties | facility				1
Skilled Nursing Facilities [Member]
Number of real estate properties | facility				661
Subsequent Event [Member]
Real estate properties sold | facility			5
2.0% Operator | Customer Concentration Risk [Member] | Revenue, Product and Service Benchmark [Member]
Concentration risk, percentage						2%
Facilities Sold
Number of real estate properties | facility				2
Facilities Sold | Gulf Coast LLC [Member]
Number of real estate properties | facility	27				27
Facilities Sold | LaVie Care Centers LLC (f/k/a Consulate Health Care)
Number of real estate properties | facility		11				11
Facilities With Impairment Charges [Member]
Number of real estate properties | facility				4
Facilities with Impairment Charges and Classified to Assets Held for Sale [Member]
Number of real estate properties | facility	2				2
Facilities Intended To Sell Per Agreement [Member] | Guardian [Member]
Number of real estate properties | facility				5
Facilities Held for Sale [Member]
Number of real estate properties | facility		2		6		2	22
Facilities Held for Sale [Member] | Guardian [Member]
Number of real estate properties | facility				5
Facilities Covered by Mortgage and Used as Collateral [Member] | Notes Receivable $104.8 Million Note [Member]
Number of real estate properties | facility		11				11
2 Facilities
Total proceeds				$ 17,600
Amount of gain (loss) from sale of facilities				$ 13,600
2 Facilities | Facilities with Impairment Charges and Classified to Assets Held for Sale [Member]
Impairment on real estate properties					$ 3,500
1 of 2 Facilities | Facilities Sold | Medical Office Building [Member]
Number of real estate properties | facility				1
1 of 2 Facilities | Facilities Sold | Skilled Nursing Facilities [Member]
Number of real estate properties | facility				1
4 Facilities
Impairment on real estate properties				$ 39,000
2 of 4 Facilities | Facilities with Impairment Charges and Classified to Assets Held for Sale [Member]
Number of real estate properties | facility				2
Impairment on real estate properties				$ 2,000
2 of 4 Facilities | Facilities With Impairment Charges Held For Use [Member]
Number of real estate properties | facility				2
Impairment on real estate properties				$ 37,000
2 of 4 Facilities | Facilities With Impairment Charges Held For Use And Later Closed [Member]
Number of real estate properties | facility				1
Impairment on real estate properties				$ 27,500
5 Facilities | Facilities Intended To Sell Per Agreement [Member] | Guardian [Member]
Total proceeds				23,800
6 Facilities | Guardian [Member] | Subsequent Event [Member]
Total proceeds			$ 35,800
11 Facilities
Total proceeds		$ 129,800
11 Facilities | Notes Receivable $104.8 Million Note [Member]
Financing receivable, gross		$ 104,800				$ 104,800
11 Facilities | Notes Receivable $104.8 Million Note Interest Received [Member]
Accrued Expenses and Other Liabilities				$ 2,100
27 Facilities | Gulf Coast LLC [Member]
Total proceeds					332,600
22 of Twenty 27 Facilities | Gulf Coast LLC [Member]
Total proceeds	$ 304,000
Amount of gain (loss) from sale of facilities	$ 113,500				113,600
Potential earnout amount per sales agreement					$ 18,700

ASSETS HELD FOR SALE, DISPOSI_4

ASSETS HELD FOR SALE, DISPOSITIONS AND IMPAIRMENTS (Schedule of Properties Held-for-Sale) (Details) $ in Thousands	Mar. 31, 2023 USD ($) facility	Dec. 31, 2022 USD ($) facility	Dec. 31, 2021 facility
Number of real estate properties	931
Amount of Assets Held for Sale | $	$ 25,766	$ 9,456
Facilities Held for Sale [Member]
Number of real estate properties	6	2	22

CONTRACTUAL RECEIVABLES AND O_3

CONTRACTUAL RECEIVABLES AND OTHER RECEIVABLES AND LEASE INDUCEMENTS (Narrative) (Details) £ in Millions				1 Months Ended	3 Months Ended				6 Months Ended	12 Months Ended
	Mar. 31, 2023 USD ($) facility contract item	Mar. 01, 2023 USD ($) facility	Sep. 30, 2022 USD ($)	Apr. 30, 2023 USD ($) item facility	Jun. 30, 2023 USD ($) facility	Mar. 31, 2023 USD ($) item facility contract	Dec. 31, 2022 USD ($) facility	Mar. 31, 2022 USD ($) item facility	Dec. 31, 2022 USD ($) facility	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2022 USD ($) facility	Nov. 30, 2024	Nov. 01, 2024	Apr. 30, 2023 GBP (£) facility	Mar. 31, 2023 GBP (£) facility contract item	Jun. 22, 2022 USD ($)	Dec. 31, 2021 facility	May 17, 2018 USD ($)	Sep. 30, 2016 USD ($)
Contractual receivables - net	$ 7,999,000					$ 7,999,000	$ 8,228,000		$ 8,228,000			$ 8,228,000
Security deposit used against uncollected receivables						$ 5,200,000		$ 3,300,000
Number of real estate properties | facility	931					931										931
Straight-line rent receivables	$ 179,816,000					$ 179,816,000	166,061,000		166,061,000			166,061,000
Revenues						218,202,000		249,315,000
Rental income						189,077,000		216,883,000
Loans Receivable, Net	1,061,869,000					1,061,869,000	1,042,731,000		1,042,731,000			1,042,731,000
Real estate tax expense						3,997,000		3,603,000
Lease inducements	5,864,000					5,864,000	6,041,000		6,041,000			6,041,000
Restricted cash	3,336,000					3,336,000	3,541,000	3,534,000	3,541,000			3,541,000
Deferred aggregate rent	$ 24,400,000					$ 24,400,000		19,300,000
Number of operators | contract	68					68										68
Interest income related to loans on non-accrual status						$ 1,500,000		$ 4,200,000
The number of operators in which security deposit was applied to pay rent | item						3		4
Accrued Expenses and Other Liabilities	$ 316,661,000					$ 316,661,000	315,047,000		315,047,000			315,047,000
Number Of Operators Placed On A Cash Basis | item						0		2
Contractual obligation	381,920,000					$ 381,920,000
Interest income						$ 28,420,000		$ 31,143,000
Number of operators in which deferred rent was allowed | item						8		6
Mortgage Receivable [Member]
Financing receivable, gross	736,199,000					$ 736,199,000	731,523,000		731,523,000			731,523,000
Loans Receivable, Net	662,654,000					662,654,000	648,130,000		648,130,000			648,130,000
Mortgage Note Due 2030 [Member]
Financing receivable, gross	508,745,000					508,745,000	506,321,000		506,321,000			506,321,000
Other Real Estate Loans [Member]
Financing receivable, gross	415,110,000					415,110,000	412,568,000		412,568,000			412,568,000
Loans Receivable, Net	399,215,000					399,215,000	394,601,000		394,601,000			394,601,000
Other Real Estate Loans Due 2035 [Member]
Financing receivable, gross	$ 258,997,000					$ 258,997,000	250,500,000		250,500,000			250,500,000
Interest rate	7%					7%										7%
Non Real Estate Loans Receivable [Member]
Financing receivable, gross	$ 304,445,000					$ 304,445,000	309,149,000		309,149,000			309,149,000
Contractual obligation	95,381,000					95,381,000
Notes Receivable Due 2036 At 5.63% [Member]
Financing receivable, gross	$ 80,991,000					$ 80,991,000	$ 55,791,000		$ 55,791,000			$ 55,791,000
Interest rate	5.63%					5.63%										5.63%
Notes Receivable $82.2 Million Due 2036 [Member]
Financing receivable, gross	$ 82,200,000					$ 82,200,000
14 Facilities
Termination fee incurred cost		$ 15,500,000
Termination Fee Incurred Cost		15,500,000
Subsequent Event [Member]
Real estate properties sold | facility					5
Operator Placed On Cash Basis [Member]
Number of operators | item	17					17										17
1.2% Operator
Rental income						$ 500,000
2.0% Operator
Rental income						$ 900,000
Scenario, Plan [Member] | 20 Facilities
Expected amount to be received	$ 14,500,000
Scenario, Plan [Member] | 14 Facilities
Expected amount to be received		$ 23,800,000
Facilities Being Transitioned To Other Operator [Member] | 1.2% Operator
Number of real estate properties | facility		14
Facilities Transitioned to Other Operators [Member]
Number of real estate properties | facility	20	14				20		6								20
Facilities Transitioned to Other Operators [Member] | 6 Facilities
Straight line rent receivable write-off								$ 3,200,000
Facilities Transitioned to Other Operators [Member] | Subsequent Event [Member]
Number of real estate properties | facility				2											2
Facilities Transitioned to Other Operators [Member] | 1.2% Operator
Number of real estate properties | facility		14
Facilities Transitioned to Other Operators [Member] | 2.0% Operator
Number of real estate properties | facility	20					20										20
Number of operators	3					3
Facilities Transitioned to Other Operators [Member] | 1.2 % and 2.0% Operator | 34 of 43 Facilities
Number of real estate properties | facility	34					34										34
Facilities Sold
Number of real estate properties | facility	2					2										2
Facilities Held for Sale [Member]
Number of real estate properties | facility	6					6	2		2			2				6		22
Facilities Transitioned To Operators [Member] | 43 Facilities
Number operators in which facilities were transitioned | item						4
Facilities Transitioned To Operators [Member] | Subsequent Event [Member] | 5 Facilities
Number operators in which facilities were transitioned | item				1
Facilities Transitioned From Operators [Member] | 43 Facilities
Number operators in which facilities were transitioned | item						3
Facilities Transitioned From Operators [Member] | Subsequent Event [Member] | 5 Facilities
Number operators in which facilities were transitioned | item				1
Facilities Transitioned From 3 Cash Basis Operators To 4 Operators [Member]
Number of real estate properties | facility	43					43										43
Facilities Transitioned From 1 Cash Basis Operator To New Operator [Member] | Subsequent Event [Member]
Number of real estate properties | facility				5											5
Revenue, Product and Service Benchmark [Member] | Customer Concentration Risk [Member] | 1.2% Operator
Concentration risk, percentage												1.20%
Revenue, Product and Service Benchmark [Member] | Customer Concentration Risk [Member] | 2.0% Operator
Concentration risk, percentage												2%
Revenue, Product and Service Benchmark [Member] | Customer Concentration Risk [Member] | 17 Operators Placed On Cash Basis [Member]
Concentration risk, percentage						25.10%		32.20%
Variable Interest Entity, Not Primary Beneficiary [Member]
Contractual receivables - net	$ 114,000					$ 114,000	$ 114,000		$ 114,000			$ 114,000
Revenues						11,944,000		$ 24,629,000
Rental income						9,838,000		20,863,000
Loans Receivable, Net	283,997,000					283,997,000	270,500,000		$ 270,500,000			$ 270,500,000
Interest income						2,106,000		3,766,000
Agemo Holdings LLC [Member]
Deferred aggregate rent	$ 1,900,000					$ 1,900,000
Lease expiration date						Dec. 31, 2036						Dec. 31, 2030
Agemo Holdings LLC [Member] | Notes Receivable $82.2 Million Due 2036 [Member]
Investment Maturity Date	Dec. 31, 2036					Dec. 31, 2036										Dec. 31, 2036
Agemo Holdings LLC [Member] | Notes Receivable Due Loan A [Member]
Financing receivable, gross	$ 32,000,000					$ 32,000,000
Agemo Holdings LLC [Member] | Notes Receivable Due Loan B [Member]
Financing receivable, gross	$ 50,200,000					50,200,000
Agemo Holdings LLC [Member] | Forecast [Member] | Notes Receivable $82.2 Million Due 2036 [Member]
Interest rate													5.71%
Agemo Holdings LLC [Member] | Variable Interest Entity, Not Primary Beneficiary [Member]
Real estate properties sold | facility									22
Rental income						$ 0		0
Restructured contractual rent amount							1,900,000
Monthly expected payment amount to be received			$ 4,800,000
Agemo Holdings LLC [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] | Notes Receivable Due 2036 At 5.63% [Member]
Interest rate	5.63%					5.63%										5.63%
Agemo Holdings LLC [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] | Notes Receivable $82.2 Million Due 2036 [Member]
Financing receivable, gross	$ 81,000,000					$ 81,000,000
Interest income related to loans on non-accrual status						$ 0		$ 0
Interest rate	5.63%					5.63%										5.63%
Investment Maturity Date	Dec. 31, 2036					Dec. 31, 2036										Dec. 31, 2036
Financing receivable, loan percentage of all financing receivables	26.60%					26.60%										26.60%
Agemo Holdings LLC [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] | Additional Principal Deferred Rent Working Capital [Member]
Financing receivable, gross	$ 25,200,000					$ 25,200,000
Agemo Holdings LLC [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] | Notes Receivable Due 2025 Working Capital [Member]
Financing receivable, gross																			$ 25,000,000
Agemo Holdings LLC [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] | Notes Receivable Due 2024 Term Loan [Member]
Financing receivable, gross																				$ 32,000,000
Agemo Holdings LLC [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] | Operator Placed On Cash Basis [Member]
Deferred aggregate rent							$ 25,200,000		$ 25,200,000			$ 25,200,000
Agemo Holdings LLC [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] | Forecast [Member] | Notes Receivable $82.2 Million Due 2036 [Member]
Interest rate														5.71%
Gulf Coast LLC [Member] | Facilities Sold
Number of real estate properties | facility								27
Guardian [Member] | Subsequent Event [Member] | Mortgage Receivable [Member]
Financing receivable, gross					$ 0
Guardian [Member] | Facilities Intended To Sell Per Agreement [Member]
Number of real estate properties | facility	5					5										5
Guardian [Member] | Facilities Held for Sale [Member]
Number of real estate properties | facility	5					5										5
Maplewood Real Estate Holdings
Rental income						$ 17,300,000
Deferred aggregate rent	$ 400,000					400,000
Termination fee incurred cost						12,500,000
Restructuring Agreement Expected Rent						$ 69,300,000
Deferred percentage of annual escalators	2.50%					2.50%										2.50%
Termination Fee Incurred Cost						$ 12,500,000
Maplewood Real Estate Holdings | Minimum [Member]
Lease expiration month year							2033-12
Maplewood Real Estate Holdings | Maximum [Member]
Lease expiration month year							2037-12
Maplewood Real Estate Holdings | Other Real Estate Loans Due 2030 [Member]
Financing receivable, face amount							$ 250,500,000		$ 250,500,000			$ 250,500,000
Maplewood Real Estate Holdings | Other Real Estate Loans Due 2035 [Member]
Financing receivable, gross	$ 259,000,000					259,000,000
Financing receivable, face amount	$ 320,000,000					320,000,000											$ 250,500,000
Interest income related to loans on non-accrual status						$ 1,500,000
Interest rate	7%					7%										7%	7%
Financing receivable, loan percentage of all financing receivables	22.50%					22.50%										22.50%
Maplewood Real Estate Holdings | Capital Expenditure Committed [Member]
Contractual obligation	$ 22,500,000					$ 22,500,000
Maplewood Real Estate Holdings | Scenario, Plan [Member] | Other Real Estate Loans Due 2035 [Member]
Interest Paid In Kind										3%	6%
Interest Paid In Cash										4%	1%
Maplewood Real Estate Holdings | Forecast [Member] | Other Real Estate Loans Due 2035 [Member]
Interest Paid In Kind										3%	6%
Interest Paid In Cash										4%	1%
Maplewood Real Estate Holdings | Revenue, Product and Service Benchmark [Member] | Customer Concentration Risk [Member]
Concentration risk, percentage						8.20%		9%
LaVie Care Centers LLC (f/k/a Consulate Health Care)
Rental income						$ 7,400,000
Deferred aggregate rent	$ 14,300,000					14,300,000
Expected amount to be received						$ 21,700,000
Financing receivable, loan percentage of all financing receivables	3.20%					3.20%		11.30%								3.20%
LaVie Care Centers LLC (f/k/a Consulate Health Care) | Forecast [Member] | Maximum [Member]
Potential accumulated deferred rent payments				$ 19,100,000
LaVie Care Centers LLC (f/k/a Consulate Health Care) | Facilities Sold
Number of real estate properties | facility							11		11			11
Healthcare Homes Limited [Member]
Deferred aggregate rent	$ 6,100,000					$ 6,100,000										£ 5
Deferred rent interest percentage						8%
Healthcare Homes Limited [Member] | Forecast [Member] | Maximum [Member]
Potential accumulated deferred rent payments | £															£ 6.7
Healthcare Homes Limited [Member] | Revenue, Product and Service Benchmark [Member] | Customer Concentration Risk [Member]
Concentration risk, percentage						3.10%		3%

CONTRACTUAL RECEIVABLES AND O_4

CONTRACTUAL RECEIVABLES AND OTHER RECEIVABLES AND LEASE INDUCEMENTS (Schedule of Net Accounts Receivable) (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
CONTRACTUAL RECEIVABLES AND OTHER RECEIVABLES AND LEASE INDUCEMENTS [Abstract]
Contractual receivables - net	$ 7,999	$ 8,228
Effective yield interest receivables	5,162	5,696
Straight-line rent receivables	179,816	166,061
Lease inducements	5,864	6,041
Other receivables and lease inducements	$ 190,842	$ 177,798

REAL ESTATE LOANS RECEIVABLE (N

REAL ESTATE LOANS RECEIVABLE (Narrative) (Detail)	3 Months Ended
	Mar. 31, 2023 property loan facility state item entity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of real estate properties	931
Number of states | state	42
Skilled Nursing Facilities [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of real estate properties	661
Assisted Living Facilities [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of real estate properties	175
Facilities Under Fixed Rate Mortgage Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of real estate properties	53
Facilities Under Fixed Rate Mortgage Loans [Member] | Skilled Nursing Facilities [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of real estate properties | property	48
Facilities Under Fixed Rate Mortgage Loans [Member] | Assisted Living Facilities [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of real estate properties | property	3
Mortgage Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of fixed rate mortgage | item	8
Number of states | state	7
Number of independent healthcare operating companies operating under mortgage notes receivable | entity	7
Other Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of other real estate loans | loan	10

REAL ESTATE LOANS RECEIVABLE (S

REAL ESTATE LOANS RECEIVABLE (Schedule of Receivables) (Detail) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023 USD ($) facility loan	Dec. 31, 2022 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Real estate loans receivable - net	$ 1,061,869	$ 1,042,731
Number of real estate properties | facility	931
Mortgage Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 736,199	731,523
Allowance for credit losses	(73,545)	(83,393)
Real estate loans receivable - net	662,654	648,130
Mortgage Note Due 2030 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 508,745	506,321
Investment Maturity Year	2030
Mortgage Note Due 2030 [Member] | Weighted Average [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest rate	10.99%
Mortgage Note Due 2031 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 73,755	76,049
Interest rate	11.27%
Investment Maturity Year	2031
Mortgage Note Due 2032 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 72,420	72,420
Interest rate	10.50%
Investment Maturity Year	2032
Mortgage Note Due 2025 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 63,357	63,811
Interest rate	7.85%
Investment Maturity Year	2025
Other Mortgage Notes Member
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 17,922	12,922
Other Mortgage Notes Member | Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Investment Maturity Year	2023
Other Mortgage Notes Member | Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Investment Maturity Year	2026
Other Mortgage Notes Member | Weighted Average [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest rate	9%
Other Mortgage Notes Due 2023 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 12,900
Investment Maturity Year	2023
Other Mortgage Notes Principal Balance of 6.4 Million [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 6,400
Financing Receivable Fair Value of Collateral	1,500
Other Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	415,110	412,568
Allowance for credit losses	(15,895)	(17,967)
Real estate loans receivable - net	$ 399,215	394,601
Number of other real estate loans | loan	10
Other Real Estate Loans Due 2035 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 258,997	250,500
Interest rate	7%
Investment Maturity Year	2035
Other Real Estate Loans Due 2024 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 100,466	98,440
Investment Maturity Year	2024
Other Real Estate Loans Due 2024 [Member] | Weighted Average [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest rate	13.18%
Other Real Estate Loans Due 2023 - 2025 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 35,647	43,628
Other Real Estate Loans Due 2023 - 2025 [Member] | Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Investment Maturity Year	2023
Other Real Estate Loans Due 2023 - 2025 [Member] | Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Investment Maturity Year	2025
Other Real Estate Loans Due 2023 - 2025 [Member] | Weighted Average [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest rate	12.03%
Other Real Estate Loans Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 20,000	$ 20,000
Other Real Estate Loans Other Interest of 12.00% [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest rate	12%	12%
Investment maturity date	Dec. 02, 2027	Dec. 02, 2027
Number of other real estate loans | loan	1	1

REAL ESTATE LOANS RECEIVABLE _2

REAL ESTATE LOANS RECEIVABLE (Summary of investments income) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	$ 28,420	$ 31,143
Investment Type Characteristic Real Estate Related Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	23,397	28,928
Mortgage Receivable [Member] | Investment Type Characteristic Real Estate Related Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	16,548	20,549
Other Real Estate Loans [Member] | Investment Type Characteristic Real Estate Related Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	$ 6,849	$ 8,379

REAL ESTATE LOANS RECEIVABLE _3

REAL ESTATE LOANS RECEIVABLE (Notes Due 2031 Narrative) (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) facility	Dec. 31, 2022 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of real estate properties | facility	931
Mortgage notes receivable-net	$ 1,061,869	$ 1,042,731
Skilled Nursing Facilities [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of real estate properties | facility	661
Assisted Living Facilities [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of real estate properties | facility	175
Guardian [Member] | Facilities Intended To Sell Per Agreement [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of real estate properties | facility	5
Mortgage Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 736,199	731,523
Mortgage notes receivable-net	$ 662,654	648,130
Mortgage Note Due 2031 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Investment Maturity Year	2031
Financing receivable, gross	$ 73,755	$ 76,049
Mortgage Note Due 2031 [Member] | Guardian [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest payments applied against principal for cost recovery loans	2,300
Mortgage Note Due 2031 [Member] | Guardian [Member] | 4 Facilities
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	73,800
Mortgage notes receivable-net	$ 35,200
Financing receivable, loan percentage of all financing receivables	6.40%
Mortgage Note Due 2031 [Member] | Guardian [Member] | Skilled Nursing Facilities [Member] | Facilities Covered by Mortgage and Used as Collateral [Member] | 4 Facilities
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of real estate properties | facility	3
Mortgage Note Due 2031 [Member] | Guardian [Member] | Assisted Living Facilities [Member] | Facilities Covered by Mortgage and Used as Collateral [Member] | 4 Facilities
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of real estate properties | facility	1

REAL ESTATE LOANS RECEIVABLE _4

REAL ESTATE LOANS RECEIVABLE (Notes Due 2035 Narrative) (Detail) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023 USD ($) facility	Mar. 31, 2022 USD ($)	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2022 USD ($)	Jun. 22, 2022 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collection of loan principal	$ 52,011	$ 79,101
Number of real estate properties | facility	931
Interest income	$ 28,420	31,143
Investment Type Characteristic Real Estate Related Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	1,151,309
Interest income	$ 23,397	28,928
Skilled Nursing Facilities [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of real estate properties | facility	661
Assisted Living Facilities [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of real estate properties | facility	175
Mortgage Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 736,199				$ 731,523
Mortgage Receivable [Member] | Investment Type Characteristic Real Estate Related Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	16,548	20,549
Mortgage Note Due 2030 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 508,745				506,321
Investment Maturity Year	2030
Other Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 415,110				412,568
Other Real Estate Loans [Member] | Investment Type Characteristic Real Estate Related Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	6,849	$ 8,379
Other Real Estate Loans Due 2035 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 258,997				$ 250,500
Investment Maturity Year	2035
Interest rate	7%
Other Real Estate Loans Due 2035 [Member] | Maplewood Real Estate Holdings
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 259,000
Interest rate	7%					7%
Financing receivable, face amount	$ 320,000					$ 250,500
Financing receivable, loan percentage of all financing receivables	22.50%
Remaining commitment and paid in kind interest	$ 58,100
Other Real Estate Loans Due 2035 [Member] | Maplewood Real Estate Holdings | Investment Type Characteristic Real Estate Related Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	1,500
Other Real Estate Loans Due 2035 [Member] | Maplewood Real Estate Holdings | Forecast [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Paid In Cash			4%	1%
Interest Paid In Kind			3%	6%
Other Real Estate Loans Due 2035 [Member] | Maplewood Real Estate Holdings | Scenario, Plan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Paid In Cash			4%	1%
Interest Paid In Kind			3%	6%
Real estate related loans non cash maximum interest paid-in kind	$ 52,200

NON-REAL ESTATE LOANS RECEIVA_3

NON-REAL ESTATE LOANS RECEIVABLE (Narrative) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) loan item	Mar. 31, 2022 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	$ 28,420	$ 31,143
Investment Type Characteristic Non Real Estate Related Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	$ 5,000	$ 2,200
Number of Borrowers | item	19
Number of non real estate loans receivable | loan	34

NON-REAL ESTATE LOANS RECEIVA_4

NON-REAL ESTATE LOANS RECEIVABLE (Schedule of receivables) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-real estate loans receivable - net	$ 189,880	$ 225,281
Non Real Estate Loans Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	304,445	309,149
Allowance for credit losses	(114,565)	(83,868)
Non-real estate loans receivable - net	189,880	225,281
Notes Receivable Due 2023 Through 2028 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 58,475	55,981
Notes Receivable Due 2023 Through 2028 [Member] | Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Investment Maturity Year	2023
Notes Receivable Due 2023 Through 2028 [Member] | Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Investment Maturity Year	2028
Notes Receivable Due 2023 Through 2028 [Member] | Weighted Average [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest rate	10.51%
Notes Receivable Due 2036 At 5.63% [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 80,991	55,791
Investment Maturity Year	2036
Interest rate	5.63%
Notes Receivable Due 2036 at 2.00% [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 32,308	32,539
Investment Maturity Year	2036
Interest rate	2%
Notes Receivable Due 2027 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross		39,653
Investment Maturity Year	2027
Interest rate	12%
Notes Receivable Due 2024 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 47,999	47,999
Investment Maturity Year	2024
Interest rate	7.50%
Other Notes [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 84,672	$ 77,186
Other Notes [Member] | Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Investment Maturity Year	2023
Other Notes [Member] | Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Investment Maturity Year	2030
Other Notes [Member] | Weighted Average [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest rate	7%
Other Notes $17.2 Million [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 17,200
Investment Maturity Year	2023
Other Notes Due 2022 $5.0 Million [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 5,000
Other Notes Due 2022 $4.2 Million [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	4,200
Financing Receivable Fair Value of Collateral	$ 1,000

NON-REAL ESTATE LOANS RECEIVA_5

NON-REAL ESTATE LOANS RECEIVABLE (Notes due 2036 at 5.63 Percent) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Nov. 30, 2024	Nov. 01, 2024	Dec. 31, 2022	May 17, 2018	Sep. 30, 2016
Non Real Estate Loans Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 304,445,000			$ 309,149,000
Allowance for loss on mortgage notes receivable	$ 114,565,000			83,868,000
Notes Receivable Due 2036 At 5.63% [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Investment Maturity Year	2036
Interest rate	5.63%
Financing receivable, gross	$ 80,991,000			55,791,000
Notes Receivable Due 2036 At 5.63% [Member] | Agemo Holdings LLC [Member] | Variable Interest Entity, Not Primary Beneficiary [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Investment Maturity Year	2036
Interest rate	5.63%
Notes Receivable $82.2 Million Due 2036 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 82,200,000
Notes Receivable $82.2 Million Due 2036 [Member] | Agemo Holdings LLC [Member] | Forecast [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest rate		5.71%
Notes Receivable $82.2 Million Due 2036 [Member] | Agemo Holdings LLC [Member] | Variable Interest Entity, Not Primary Beneficiary [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest rate	5.63%
Financing receivable, gross	$ 81,000,000
Financing receivable, loan percentage of all financing receivables	26.60%
Allowance for loss on mortgage notes receivable	$ 75,100,000
Notes Receivable $82.2 Million Due 2036 [Member] | Agemo Holdings LLC [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] | Forecast [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest rate			5.71%
Notes Receivable Due Loan A [Member] | Agemo Holdings LLC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	32,000,000
Notes Receivable Due Loan B [Member] | Agemo Holdings LLC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	50,200,000
Notes Receivable Due Loan B [Member] | Agemo Holdings LLC [Member] | Variable Interest Entity, Not Primary Beneficiary [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable allowance, increase (decrease)	25,200,000
Additional Principal Deferred Rent Working Capital [Member] | Agemo Holdings LLC [Member] | Variable Interest Entity, Not Primary Beneficiary [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	25,200,000
Financing receivable allowance, increase (decrease)	$ 25,200,000
Notes Receivable Due 2025 Working Capital [Member] | Agemo Holdings LLC [Member] | Variable Interest Entity, Not Primary Beneficiary [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross					$ 25,000,000
Financing Receivable Fair Value of Collateral				5,900,000
Notes Receivable Due 2024 Term Loan [Member] | Agemo Holdings LLC [Member] | Variable Interest Entity, Not Primary Beneficiary [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross						$ 32,000,000
Financing Receivable Fair Value of Collateral				$ 0

NON-REAL ESTATE LOANS RECEIVA_6

NON-REAL ESTATE LOANS RECEIVABLE (Notes due 2036 at 2.00 Percent) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Jan. 31, 2023	Dec. 31, 2022	Mar. 31, 2022
LaVie Care Centers LLC (f/k/a Consulate Health Care)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, loan percentage of all financing receivables	3.20%			11.30%
Non Real Estate Loans Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, gross	$ 304,445		$ 309,149
Allowance for loss on mortgage notes receivable	$ 114,565		83,868
Notes Receivable Due 2036 at 2.00% [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Investment Maturity Year	2036
Interest rate	2%
Financing receivable, gross	$ 32,308		32,539
Notes Receivable Due 2036 at 2.00% [Member] | LaVie Care Centers LLC (f/k/a Consulate Health Care)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Investment Maturity Year	2036
Interest rate	2%	2%
Interest payments applied against principal for cost recovery loans	$ 200
Investment Maturity Date	Nov. 30, 2036
Financing receivable, loan percentage of all financing receivables	10.60%
Financing receivable, gross	$ 32,300
Allowance for loss on mortgage notes receivable	24,800
Notes Receivable Due $8.3 Million Term Loan [Member] | LaVie Care Centers LLC (f/k/a Consulate Health Care)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, face amount	8,300		8,300
Notes Receivable Due $25.0 Million Term Loan [Member] | LaVie Care Centers LLC (f/k/a Consulate Health Care)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, face amount	$ 25,000		$ 25,000

ALLOWANCE FOR CREDIT LOSSES (Na

ALLOWANCE FOR CREDIT LOSSES (Narrative) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Accrued investment income receivable	$ 8,000		$ 8,200
Effective yield interest receivables	5,162		$ 5,696
Interest income related to loans on non-accrual status	$ 1,500	$ 4,200
Financing Receivable, Practical Expedient, Accrued Interest Exclusion [true false]	true

ALLOWANCE FOR CREDIT LOSSES (Sc

ALLOWANCE FOR CREDIT LOSSES (Schedule of expected credit loss per segment) (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) facility	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Number of real estate properties | facility	931
Direct Financing Lease, Net Investment in Lease, Allowance for Credit Loss [Roll Forward]
Direct Financing Lease, beginning balance	$ 2,816	$ 530
Provision (recovery) on direct financing leases	(193)	5
Direct Financing Lease, ending balance	2,623	535
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
ECL balance, total receivables	209,507	146,290	$ 188,364	$ 144,466
Provision (Recovery) for Credit Losses, total receivables	(4,057)	1,824
Investment Type Characteristic Real Estate Related Loans [Member]
Financing receivable, gross	1,151,309
Financing Receivable, Allowance for Credit Loss [Roll Forward]
ECL Ending balance	89,440	80,081
Provision (Recovery) for Credit Losses	(11,920)	(2,493)
ECL Beginning balance	101,360	82,574
Investment Type Characteristic Non Real Estate Related Loans [Member]
Financing receivable, gross	304,445
Financing Receivable, Allowance for Credit Loss [Roll Forward]
ECL Ending balance	114,565	65,127
Provision (Recovery) for Credit Losses	5,497	4,706
Allowance for credit loss increase (decrease)	25,200
ECL Beginning balance	83,868	60,421
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
ECL Beginning balance, off-balance sheet	320	941
Provision (Recovery) for Credit Losses, off-balance sheet	2,559	(394)
ECL Ending balance, off-balance sheet	2,879	547
Mortgage Receivable [Member]
Financing receivable, gross	736,199		731,523
Financing Receivable, Allowance for Credit Loss [Roll Forward]
ECL Ending balance	73,545
ECL Beginning balance	83,393
Non Real Estate Loans Receivable [Member]
Financing receivable, gross	304,445		309,149
Financing Receivable, Allowance for Credit Loss [Roll Forward]
ECL Ending balance	114,565
Allowance for credit loss increase (decrease)	25,200
ECL Beginning balance	83,868
Non Real Estate Loans Receivable [Member] | Agemo Holdings LLC [Member] | Investment Type Characteristic Non Real Estate Related Loans [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Provision (Recovery) for Credit Losses		4,700
Notes Receivable Due $8.3 Million Term Loan [Member] | LaVie Care Centers LLC (f/k/a Consulate Health Care)
Financing receivable, face amount	8,300		8,300
Notes Receivable Due $25.0 Million Term Loan [Member] | LaVie Care Centers LLC (f/k/a Consulate Health Care)
Financing receivable, face amount	25,000		25,000
Notes Receivable Due 2036 At 5.63% [Member]
Financing receivable, gross	80,991		$ 55,791
Notes Receivable $82.2 Million Due 2036 [Member]
Financing receivable, gross	82,200
Notes Receivable $82.2 Million Due 2036 [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] | Agemo Holdings LLC [Member]
Financing receivable, gross	81,000
Financing Receivable, Allowance for Credit Loss [Roll Forward]
ECL Ending balance	75,100
Notes Receivable Due Loan A [Member] | Agemo Holdings LLC [Member]
Financing receivable, gross	32,000
Notes Receivable Due Loan B [Member] | Agemo Holdings LLC [Member]
Financing receivable, gross	50,200
Notes Receivable Due Loan B [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] | Agemo Holdings LLC [Member]
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Financing receivable allowance, increase (decrease)	25,200
Additional Principal Deferred Rent Working Capital [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] | Agemo Holdings LLC [Member]
Financing receivable, gross	25,200
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Financing receivable allowance, increase (decrease)	25,200
Internal Credit Rating One [Member] | Investment Type Characteristic Real Estate Related Loans [Member]
Financing receivable, gross	83,357
Financing Receivable, Allowance for Credit Loss [Roll Forward]
ECL Ending balance	513
Provision (Recovery) for Credit Losses	351
ECL Beginning balance	162
Internal Credit Rating Two [Member] | Investment Type Characteristic Real Estate Related Loans [Member]
Financing receivable, gross	21,325
Financing Receivable, Allowance for Credit Loss [Roll Forward]
ECL Ending balance	46	62
Provision (Recovery) for Credit Losses	(111)	48
ECL Beginning balance	157	14
Internal Credit Rating Two [Member] | Investment Type Characteristic Non Real Estate Related Loans [Member]
Financing receivable, gross	94,197
Financing Receivable, Allowance for Credit Loss [Roll Forward]
ECL Ending balance	292	81
Provision (Recovery) for Credit Losses	(567)	52
ECL Beginning balance	859	29
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
ECL Beginning balance, off-balance sheet	207	7
Provision (Recovery) for Credit Losses, off-balance sheet	(96)	2
ECL Ending balance, off-balance sheet	111	9
Internal Credit Rating Three [Member]
Direct Financing Lease, Net Investment in Lease, Allowance for Credit Loss [Roll Forward]
Direct Financing Lease, beginning balance		530
Provision (recovery) on direct financing leases		5
Direct Financing Lease, ending balance		535
Internal Credit Rating Three [Member] | Investment Type Characteristic Real Estate Related Loans [Member]
Financing receivable, gross	372,064
Financing Receivable, Allowance for Credit Loss [Roll Forward]
ECL Ending balance	14,689	6,350
Provision (Recovery) for Credit Losses	(421)	983
ECL Beginning balance	15,110	5,367
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
ECL Beginning balance, off-balance sheet		251
Provision (Recovery) for Credit Losses, off-balance sheet	2,660	(151)
ECL Ending balance, off-balance sheet	2,660	100
Internal Credit Rating Three [Member] | Investment Type Characteristic Non Real Estate Related Loans [Member]
Financing receivable, gross	51,076
Financing Receivable, Allowance for Credit Loss [Roll Forward]
ECL Ending balance	352	1,411
Provision (Recovery) for Credit Losses	(1,727)	205
ECL Beginning balance	2,079	1,206
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
ECL Beginning balance, off-balance sheet	29	207
Provision (Recovery) for Credit Losses, off-balance sheet	(23)	20
ECL Ending balance, off-balance sheet	6	227
Internal Credit Rating Four [Member] | Investment Type Characteristic Real Estate Related Loans [Member]
Financing receivable, gross	587,886
Financing Receivable, Allowance for Credit Loss [Roll Forward]
ECL Ending balance	24,221	22,211
Provision (Recovery) for Credit Losses	(9,445)	1,634
ECL Beginning balance	33,666	20,577
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
ECL Beginning balance, off-balance sheet	84	117
Provision (Recovery) for Credit Losses, off-balance sheet	(62)	(106)
ECL Ending balance, off-balance sheet	22	11
Internal Credit Rating Four [Member] | Investment Type Characteristic Non Real Estate Related Loans [Member]
Financing receivable, gross	27,810
Financing Receivable, Allowance for Credit Loss [Roll Forward]
ECL Ending balance	273	531
Provision (Recovery) for Credit Losses	(361)	475
ECL Beginning balance	634	56
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
ECL Beginning balance, off-balance sheet		216
Provision (Recovery) for Credit Losses, off-balance sheet		(78)
ECL Ending balance, off-balance sheet		138
Internal Credit Rating Five [Member]
Direct Financing Lease, Net Investment in Lease, Allowance for Credit Loss [Roll Forward]
Direct Financing Lease, beginning balance	2,816
Provision (recovery) on direct financing leases	(193)
Direct Financing Lease, ending balance	2,623
Internal Credit Rating Five [Member] | Investment Type Characteristic Real Estate Related Loans [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
ECL Ending balance		113
Provision (Recovery) for Credit Losses		(23)
ECL Beginning balance		136
Internal Credit Rating Five [Member] | Investment Type Characteristic Non Real Estate Related Loans [Member]
Financing receivable, gross	53,100
Financing Receivable, Allowance for Credit Loss [Roll Forward]
ECL Ending balance	43,885	12,565
Provision (Recovery) for Credit Losses	66	4,704
Allowance for credit loss increase (decrease)	25,200
ECL Beginning balance	18,619	7,861
Internal Credit Rating Six [Member] | Investment Type Characteristic Real Estate Related Loans [Member]
Financing receivable, gross	86,677
Financing Receivable, Allowance for Credit Loss [Roll Forward]
ECL Ending balance	49,971	51,345
Provision (Recovery) for Credit Losses	(2,294)	(5,135)
ECL Beginning balance	52,265	56,480
Internal Credit Rating Six [Member] | Investment Type Characteristic Non Real Estate Related Loans [Member]
Financing receivable, gross	78,262
Financing Receivable, Allowance for Credit Loss [Roll Forward]
ECL Ending balance	69,763	50,539
Provision (Recovery) for Credit Losses	8,086	(730)
ECL Beginning balance	61,677	51,269
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
ECL Beginning balance, off-balance sheet		143
Provision (Recovery) for Credit Losses, off-balance sheet	80	(81)
ECL Ending balance, off-balance sheet	$ 80	$ 62

ALLOWANCE FOR CREDIT LOSSES (_2

ALLOWANCE FOR CREDIT LOSSES (Schedule by segment balance by vintage and credit quality indicator) (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Total 2023	$ 13,633
Total 2022	103,470
Total 2021	110,579
Total 2020	110,837
Total 2019	13,668
Total 2018	194,311
Total 2017 & older	527,818
Total receivable Revolving	392,731
Total receivables	1,467,047
2023, current-period gross write-offs
2022, current-period gross write-offs
2021, current-period gross write-offs
2020, current-period gross write-offs
2019, current-period gross write-offs
2018, current-period gross write-offs
2017 & older, current-period gross write-offs
Revolving, current-period gross write-offs
Total write offs, current period
Direct Financing Lease, Net Investment in Lease, before Allowance for Credit Loss [Abstract]
2017 & older, Investment in direct financing leases	11,293
Investment in direct financing leases	11,293
Investment Type Characteristic Real Estate Related Loans [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	5,000
2022	54,786
2021	102,728
2020	110,837
2019	5,099
2018	129,580
2017 & older	484,282
Revolving Loans	258,997
Total Balance	1,151,309
Investment Type Characteristic Non Real Estate Related Loans [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	8,633
2022	48,684
2021	7,851
2019	8,569
2018	64,731
2017 & older	32,243
Revolving Loans	133,734
Total Balance	304,445
Internal Credit Rating One [Member] | Investment Type Characteristic Real Estate Related Loans [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2022	20,000
2017 & older	63,357
Total Balance	83,357
Internal Credit Rating Two [Member] | Investment Type Characteristic Real Estate Related Loans [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2020	21,325
Total Balance	21,325
Internal Credit Rating Two [Member] | Investment Type Characteristic Non Real Estate Related Loans [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Revolving Loans	94,197
Total Balance	94,197
Internal Credit Rating Three [Member] | Investment Type Characteristic Real Estate Related Loans [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	5,000
2022	34,600
2021	72,420
2017 & older	1,047
Revolving Loans	258,997
Total Balance	372,064
Internal Credit Rating Three [Member] | Investment Type Characteristic Non Real Estate Related Loans [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	3,092
2022	23,101
2019	4,533
2018	10,800
Revolving Loans	9,550
Total Balance	51,076
Internal Credit Rating Four [Member] | Investment Type Characteristic Real Estate Related Loans [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2022	186
2021	30,308
2020	89,512
2019	5,099
2018	129,580
2017 & older	333,201
Total Balance	587,886
Internal Credit Rating Four [Member] | Investment Type Characteristic Non Real Estate Related Loans [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2019	1,810
2017 & older	1,000
Revolving Loans	25,000
Total Balance	27,810
Internal Credit Rating Five [Member]
Direct Financing Lease, Net Investment in Lease, before Allowance for Credit Loss [Abstract]
2017 & older, Investment in direct financing leases	11,293
Investment in direct financing leases	11,293
Internal Credit Rating Five [Member] | Investment Type Characteristic Non Real Estate Related Loans [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2022	1,126
2019	2,226
2018	49,748
Total Balance	53,100
Internal Credit Rating Six [Member] | Investment Type Characteristic Real Estate Related Loans [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2017 & older	86,677
Total Balance	86,677
Internal Credit Rating Six [Member] | Investment Type Characteristic Non Real Estate Related Loans [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	5,541
2022	24,457
2021	7,851
2018	4,183
2017 & older	31,243
Revolving Loans	4,987
Total Balance	78,262
Mortgage Receivable [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Total Balance	736,199	$ 731,523
Non Real Estate Loans Receivable [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Total Balance	$ 304,445	$ 309,149

VARIABLE INTEREST ENTITIES (Sch

VARIABLE INTEREST ENTITIES (Schedule of variable interest entities) (Detail)	3 Months Ended
	Mar. 31, 2023 USD ($) facility	Mar. 31, 2022 USD ($) facility	Dec. 31, 2022 USD ($) facility
Assets
Real estate assets - net	$ 6,438,035,000		$ 6,537,491,000
Assets held for sale	25,766,000		9,456,000
Real estate loans receivable - net	1,061,869,000		1,042,731,000
Non-real estate loans receivable - net	189,880,000		225,281,000
Contractual receivables - net	7,999,000		8,228,000
Other receivables and lease inducements	190,842,000		177,798,000
Lease inducements	5,864,000		6,041,000
Other assets	293,788,000		272,960,000
Total assets	9,290,206,000		9,405,163,000
Liabilities
Total Liabilities	(5,604,595,000)		(5,601,881,000)
Restricted cash	3,336,000	$ 3,534,000	3,541,000
Rental income	189,077,000	216,883,000
Interest income	28,420,000	31,143,000
Total revenues	$ 218,202,000	$ 249,315,000
Number of Facilities | facility	931
Assisted Living Facilities [Member]
Liabilities
Number of Facilities | facility	175
Facilities Sold
Liabilities
Number of Facilities | facility	2
Facilities Acquired | Assisted Living Facilities [Member]
Liabilities
Number of Facilities | facility	6
Non Real Estate Loans Receivable [Member]
Assets
Non-real estate loans receivable - net	$ 189,880,000		225,281,000
Maplewood Real Estate Holdings
Liabilities
Rental income	17,300,000
Variable Interest Entity, Primary Beneficiary [Member]
Assets
Total assets	27,000,000		25,800,000
Liabilities
Total Liabilities	(20,200,000)		(19,800,000)
Variable Interest Entity, Primary Beneficiary [Member] | Assisted Living Facilities [Member]
Liabilities
Number of Facilities | facility		2
Payment for interest in consolidate joint venture		$ 3,200,000
Variable Interest Entity, Primary Beneficiary [Member] | Joint Venture That Owns Two Assisted Living Facilities [Member]
Liabilities
Equity Method Investment, Ownership Percentage		52.40%
Variable Interest Entity, Primary Beneficiary [Member] | Exchange Accommodation Titleholders [Member] | 4 of 7 Facilities
Assets
Real estate assets - net	$ 54,600,000		55,200,000
Liabilities
Cash			$ 23,900,000
Variable Interest Entity, Primary Beneficiary [Member] | Facilities Acquired | Exchange Accommodation Titleholders [Member]
Liabilities
Number of Facilities | facility			7
Variable Interest Entity, Primary Beneficiary [Member] | Facilities Acquired Acquisition Completed [Member] | Exchange Accommodation Titleholders [Member] | 3 of 7 Facilities
Liabilities
Number of Facilities | facility	3
Variable Interest Entity, Primary Beneficiary [Member] | Facilities Acquired Acquisition Pending [Member] | Exchange Accommodation Titleholders [Member] | 4 of 7 Facilities
Liabilities
Number of Facilities | facility	4
Variable Interest Entity, Not Primary Beneficiary [Member]
Assets
Real estate assets - net	$ 1,066,967,000		$ 982,721,000
Real estate loans receivable - net	283,997,000		270,500,000
Non-real estate loans receivable - net	5,929,000		5,929,000
Contractual receivables - net	114,000		114,000
Other assets			1,499,000
Total assets	1,357,007,000		1,260,763,000
Liabilities
Net in-place lease liability	(273,000)		(280,000)
Security deposit	(5,082,000)		(4,828,000)
Contingent liability	(43,915,000)		(43,915,000)
Other liabilities	(92,000)		(1,499,000)
Total Liabilities	(49,362,000)		(50,522,000)
Total collateral	(1,114,967,000)		(1,030,721,000)
Maximum exposure to loss	192,678,000		179,520,000
Rental income	$ 9,838,000	$ 20,863,000
Rental income, Statement of Income [Extensible Enumeration]	Rental income	Rental income
Interest income	$ 2,106,000	$ 3,766,000
Total revenues	11,944,000	24,629,000
Variable Interest Entity, Not Primary Beneficiary [Member] | Asset Pledged as Collateral with Right [Member] | Notes Payable, Other Payables [Member]
Liabilities
Accounts receivable	5,900,000		5,900,000
Variable Interest Entity, Not Primary Beneficiary [Member] | Personal Guarantee Collateral [Member]
Liabilities
Total collateral	(48,000,000)		(48,000,000)
Variable Interest Entity, Not Primary Beneficiary [Member] | Other Collateral [Member]
Liabilities
Total collateral	(1,066,967,000)		$ (982,721,000)
Variable Interest Entity, Not Primary Beneficiary [Member] | Agemo Holdings LLC [Member]
Liabilities
Rental income	$ 0	$ 0

INVESTMENT IN JOINT VENTURES (N

INVESTMENT IN JOINT VENTURES (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
INVESTMENTS IN JOINT VENTURES [Abstract]
Assets management fees recognized	$ 0.2	$ 0.2

INVESTMENT IN JOINT VENTURES (S

INVESTMENT IN JOINT VENTURES (Schedule of equity method investments) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) property facility contract	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)
Investment	$ 230,567
Number of real estate properties | facility	931
Investments in unconsolidated joint ventures	$ 181,339		$ 178,920
Number of operators | contract	68
Income (loss) from unconsolidated joint ventures	$ 831	$ 1,623
Second Spring Healthcare Investments [Member]
Income (loss) from unconsolidated joint ventures	289	285
Second Spring II LLC [Member]
Income (loss) from unconsolidated joint ventures		(2)
Lakeway Realty LLC [Member]
Income (loss) from unconsolidated joint ventures	679	661
Cindat Ice Portfolio JV GP Limited [Member]
Income (loss) from unconsolidated joint ventures	1	735
OMG Senior Housing LLC [Member]
Income (loss) from unconsolidated joint ventures	$ (220)	(83)
OH CHS SNP Inc [Member]
Ownership %	9%
Initial Investment Date	Dec. 20, 2019
Investment	$ 1,013
Investments in unconsolidated joint ventures	494		412
Income (loss) from unconsolidated joint ventures	$ 82	$ 27
Skilled Nursing Facilities [Member]
Number of real estate properties | facility	661
Skilled Nursing Facilities [Member] | Second Spring Healthcare Investments [Member]
Ownership %	15%
Initial Investment Date	Nov. 01, 2016
Investment	$ 50,032
Investments in unconsolidated joint ventures	$ 10,892		10,975
Specialty [Member]
Number of real estate properties | property	16
Specialty [Member] | Lakeway Realty LLC [Member]
Ownership %	51%
Initial Investment Date	May 17, 2019
Investment	$ 73,834
Number of real estate properties | facility	1
Investments in unconsolidated joint ventures	$ 69,851		70,151
Assisted Living Facilities [Member]
Number of real estate properties | facility	175
Assisted Living Facilities [Member] | Cindat Ice Portfolio JV GP Limited [Member]
Ownership %	49%
Initial Investment Date	Dec. 18, 2019
Investment	$ 105,688
Number of real estate properties | facility	63
Investments in unconsolidated joint ventures	$ 100,102		97,382
Independent Living Facilities [Member]
Number of real estate properties | facility	19
Specialty Facility | OMG Senior Housing LLC [Member]
Ownership %	50%
Initial Investment Date	Dec. 06, 2019
Number of real estate properties | facility	1
Non Real Estate Loans Receivable [Member]
Financing receivable, gross	$ 304,445		309,149
Mortgage Receivable [Member]
Financing receivable, gross	$ 736,199		$ 731,523
Facilities Sold
Number of real estate properties | facility	2
Facilities Acquired | Assisted Living Facilities [Member]
Number of real estate properties | facility	6

GOODWILL AND OTHER INTANGIBLE_2

GOODWILL AND OTHER INTANGIBLES (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Net amortization of intangible assets	$ 6.1	$ 1.6
Remainder 2023	2
2024	2.5
2025	2.5
2026	2
2027	$ 1.7
Below market leases, weighted average remaining amortization, period	7 years
Above market leases
Weighted average remaining amortization	12 years

GOODWILL AND OTHER INTANGIBLE_3

GOODWILL AND OTHER INTANGIBLES (Schedule of Reconciliation of Goodwill) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Goodwill [Roll Forward]
Balance	$ 643,151
Foreign currency translation	349
Balance	643,500
Gain on assets sold - net	$ 13,637	$ 113,637

GOODWILL AND OTHER INTANGIBLE_4

GOODWILL AND OTHER INTANGIBLES (Schedule of Intangibles) (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Assets:
Gross intangible assets	$ 5,929	$ 5,929
Accumulated amortization	(4,520)	(4,484)
Net intangible assets	1,409	1,445
Liabilities:
Below market leases	55,183	66,433
Accumulated amortization	(39,512)	(44,595)
Net intangible liabilities	$ 15,671	$ 21,838

CONCENTRATION OF RISK (Narrativ

CONCENTRATION OF RISK (Narrative) (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) property item facility contract state	Mar. 31, 2022	Dec. 31, 2022 USD ($) facility item	Dec. 31, 2021 facility
Concentration Risk [Line Items]
Number of real estate properties	931
Number of operators that met or exceeded ten percent of investments | item	1		1
Number of states | state	42
Number of operators | contract	68
Gross investment in facilities, net of impairments and reserves for uncollectible loans | $	$ 9,500,000
Real estate loans receivable - net | $	1,061,869		$ 1,042,731
Non-real estate loans receivable - net | $	189,880		225,281
Investment in unconsolidated joint venture | $	$ 181,339		178,920
Number of unconsolidated joint ventures | item	5
Other Real Estate Loans [Member]
Concentration Risk [Line Items]
Real estate loans receivable - net | $	$ 399,215		394,601
Variable Interest Entity, Not Primary Beneficiary [Member]
Concentration Risk [Line Items]
Real estate loans receivable - net | $	283,997		270,500
Non-real estate loans receivable - net | $	$ 5,929		$ 5,929
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Maplewood Real Estate Holdings | Variable Interest Entity, Not Primary Beneficiary [Member]
Concentration Risk [Line Items]
Concentration percentage	8.20%	9%
Assets, Total [Member] | Geographic Concentration Risk [Member] | Florida
Concentration Risk [Line Items]
Concentration percentage	11.50%
Assets, Total [Member] | Geographic Concentration Risk [Member] | Texas
Concentration Risk [Line Items]
Concentration percentage	10.20%
Assets, Total [Member] | Geographic Concentration Risk [Member] | Indiana
Concentration Risk [Line Items]
Concentration percentage	6.60%
Assets, Total [Member] | Product Concentration Risk [Member] | Real Estate Investment
Concentration Risk [Line Items]
Concentration percentage	97%
Skilled Nursing Facilities [Member]
Concentration Risk [Line Items]
Number of real estate properties	661
Assisted Living Facilities [Member]
Concentration Risk [Line Items]
Number of real estate properties	175
Specialty [Member]
Concentration Risk [Line Items]
Number of real estate properties | property	16
Medical Office Building [Member]
Concentration Risk [Line Items]
Number of real estate properties	1
Independent Living Facilities [Member]
Concentration Risk [Line Items]
Number of real estate properties	19
Facilities Under Fixed Rate Mortgage Loans [Member]
Concentration Risk [Line Items]
Number of real estate properties	53
Facilities Under Fixed Rate Mortgage Loans [Member] | Skilled Nursing Facilities [Member]
Concentration Risk [Line Items]
Number of real estate properties | property	48
Facilities Under Fixed Rate Mortgage Loans [Member] | Assisted Living Facilities [Member]
Concentration Risk [Line Items]
Number of real estate properties | property	3
Facilities Under Fixed Rate Mortgage Loans [Member] | Specialty [Member]
Concentration Risk [Line Items]
Number of real estate properties	2
Facilities Held for Sale [Member]
Concentration Risk [Line Items]
Number of real estate properties	6		2	22

STOCKHOLDERS EQUITY (Schedule o

STOCKHOLDERS EQUITY (Schedule of Common Stock Dividends) (Details) - $ / shares	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022
Stockholders Equity [Abstract]
Dividends Declared, Date Of Record	May 01, 2023	Feb. 06, 2023
Dividends Payable, Date to be Paid	May 15, 2023	Feb. 15, 2023
Common Stock, Dividends, Per Share, Declared	$ 0.67	$ 0.67	$ 0.67

STOCKHOLDERS EQUITY (Schedule_2

STOCKHOLDERS EQUITY (Schedule of dividend reinvestment and common stock purchase plan) (Detail) - Dividend Reinvestment And Common Stock Purchase Plan [Member] - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Shares issued	0.1	0.1
Gross Proceeds	$ 2.3	$ 2.3

STOCKHOLDERS EQUITY (Schedule_3

STOCKHOLDERS EQUITY (Schedule of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 3,803,282	$ 4,108,226
Balance ending	3,685,611	4,129,844
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Stockholders Equity/AOCI	3,497,057		$ 3,609,368
Add: portion included in noncontrolling interest	188,554		193,914
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	3,685,611	4,129,844	3,803,282
Foreign Currency Translation [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(85,004)	(24,012)
Translation gain (loss)	15,750	(14,630)
Realized gain (loss)	84	(26)
Balance ending	(69,170)	(38,668)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(69,170)	(38,668)	(85,004)
Cash Flow Hedges [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	86,356	30,407
Unrealized (loss) gain	(10,624)	18,612
Realized gain	1,074	966
Balance ending	76,806	49,985
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	76,806	49,985	86,356
Net Investment Hedges [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	18,634	(9,588)
Unrealized (loss) gain	(5,041)	3,847
Balance ending	13,593	(5,741)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	13,593	(5,741)	18,634
Accumulated Other Comprehensive Income (Loss)[Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	20,325	(2,200)
Balance ending	21,533	6,318
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Stockholders Equity/AOCI	21,229	5,576
Add: portion included in noncontrolling interest	304	742
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 21,533	$ 6,318	$ 20,325

TAXES (Narrative) (Detail)

TAXES (Narrative) (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) subsidiary	Dec. 31, 2022 USD ($)
Taxes [Line Items]
Minimum number of subsequent years the company may not be able to qualify as a REIT	4 years
Percentage of income subject to federal taxation	100%
Number of TSRs subject to federal, state and local income taxes with net operating loss carryforwards | subsidiary	1
Deferred tax assets related to net operating loss carryforwards	$ 10,782	$ 11,268
Taxable REIT Subsidiaries [Member]
Taxes [Line Items]
Net operating loss carry-forward	10,200
Foreign Tax Authority
Taxes [Line Items]
Net operating loss carry-forward	$ 43,100
Net operating loss carryforwards period	no

TAXES (Schedule of components o

TAXES (Schedule of components of income tax expense) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Taxes [Abstract]
Federal, state and local income tax expense	$ 300	$ 300
Foreign income tax (benefit) expense	(1,600)	900
Total income tax (benefit) expense	(1,300)	1,200
Income before income tax benefit (expense) and income from unconsolidated joint ventures	34,722	194,758
Income from unconsolidated joint ventures	$ 831	$ 1,623

TAXES (Schedule of deferred tax

TAXES (Schedule of deferred tax assets and liabilities) (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Deferred tax assets:
Federal net operating loss carryforward	$ 2,138	$ 2,138
Valuation allowance on deferred tax asset	(2,138)	(2,138)
Foreign net operating loss carryforward	10,782	11,268
Foreign deferred tax liability	(1,818)
Net deferred tax asset	10,782	5,895
Deferred tax liability:
Foreign deferred tax liability	1,818
Net deferred tax liability	$ 1,818
Foreign Tax Authority
Deferred tax assets:
Foreign deferred tax liability		(5,373)
Deferred tax liability:
Foreign deferred tax liability		$ 5,373

STOCK-BASED COMPENSATION (Narra

STOCK-BASED COMPENSATION (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Stock-based compensation expense	$ 8.7	$ 6.9
Performance Based Restricted Stock Units [Member]
Shares awarded, other than options	59,684
Performance period used for performance based awards	3 years
Performance Based Profit Interest Units [Member]
Vesting period, years	4 years
Performance Based Profit Interest Units [Member] | Certain Officers and Key Employees [Member]
Shares awarded, other than options	2,049,878
Performance period used for performance based awards	3 years
Time Based Profit Interest Units [Member] | Certain Officers and Key Employees [Member]
Shares awarded, other than options	254,777
Vesting period, years	3 years

BORROWING ARRANGEMENTS (Schedul

BORROWING ARRANGEMENTS (Schedule of Borrowings) (Details) $ in Thousands, £ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2023 USD ($) facility	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)	Mar. 31, 2023 GBP (£) facility
Debt Instrument [Line Items]
Total secured borrowings	$ 364,773		$ 366,596
Revolving credit facility	19,784		19,246
Total senior notes and other unsecured borrowings - net	4,903,377		4,900,992
Total secured and unsecured borrowings - net	5,287,934		5,286,834
Real estate assets - net	6,438,035		$ 6,537,491
Loss on extinguishment of debt	$ 6	$ 6
Debt instrument, covenant compliance	As of March 31, 2023 and December 31, 2022, we were in compliance with all applicable covenants for our borrowings		As of March 31, 2023 and December 31, 2022, we were in compliance with all applicable covenants for our borrowings
Number of Facilities | facility	931			931
Repayments of Long-term Debt	$ 1,913	$ 66,896
Assisted Living Facilities [Member]
Debt Instrument [Line Items]
Number of Facilities | facility	175			175
Hud Mortgage
Debt Instrument [Line Items]
Mortgage insurance interest rate premium	0.65%			0.65%
Hud Mortgage | Asset Pledged as Collateral [Member]
Debt Instrument [Line Items]
Real estate assets - net	$ 476,500
4.375% notes due 2023
Debt Instrument [Line Items]
Rate	4.375%		4.375%	4.375%
4.950% notes due 2024
Debt Instrument [Line Items]
Rate	4.95%		4.95%	4.95%
4.50% notes due 2025
Debt Instrument [Line Items]
Rate	4.50%		4.50%	4.50%
5.25% notes due 2026
Debt Instrument [Line Items]
Rate	5.25%		5.25%	5.25%
4.50% notes due 2027
Debt Instrument [Line Items]
Rate	4.50%		4.50%	4.50%
4.75% notes due 2028
Debt Instrument [Line Items]
Rate	4.75%		4.75%	4.75%
3.625% notes due 2029
Debt Instrument [Line Items]
Rate	3.625%		3.625%	3.625%
3.375% notes due 2031
Debt Instrument [Line Items]
Rate	3.375%		3.375%	3.375%
3.25% notes due 2033
Debt Instrument [Line Items]
Rate	3.25%		3.25%	3.25%
Secured Debt [Member]
Debt Instrument [Line Items]
Total secured borrowings	$ 364,773		$ 366,596
Secured Debt [Member] | Hud Mortgage
Debt Instrument [Line Items]
Rate	3.01%			3.01%
Total secured borrowings	$ 342,795		344,708
Secured Debt [Member] | Term Loan Maturity 2023 [Member]
Debt Instrument [Line Items]
Maturity	2023
Rate	8.50%			8.50%
Total secured borrowings	$ 2,161		2,161
Secured Debt [Member] | Term Loan Maturity 2024 [Member]
Debt Instrument [Line Items]
Maturity	2024
Rate	10.17%			10.17%
Total secured borrowings	$ 19,817		19,727
Secured Debt [Member] | Term Loan Maturity 2024 [Member] | Facilities Related to Joint Venture [Member] | Assisted Living Facilities [Member]
Debt Instrument [Line Items]
Number of Facilities | facility	2			2
Unsecured Debt [Member]
Debt Instrument [Line Items]
Deferred financing costs - net	$ (21,099)		(22,276)
Discount - net	(25,524)		(26,732)
Total senior notes and other unsecured borrowings - net	4,903,377		4,900,992
Total unsecured borrowings - net	$ 4,923,161		4,920,238
Unsecured Debt [Member] | Omega OP Term Loan Facility
Debt Instrument [Line Items]
Maturity	2025
Rate	6.29%			6.29%
Total term loans - net	$ 50,000		50,000
Senior Notes [Member] | 4.375% notes due 2023
Debt Instrument [Line Items]
Maturity	2023
Rate	4.375%			4.375%
Long-term debt, gross	$ 350,000		350,000
Senior Notes [Member] | 4.950% notes due 2024
Debt Instrument [Line Items]
Maturity	2024
Rate	4.95%			4.95%
Long-term debt, gross	$ 400,000		400,000
Senior Notes [Member] | 4.50% notes due 2025
Debt Instrument [Line Items]
Maturity	2025
Rate	4.50%			4.50%
Long-term debt, gross	$ 400,000		400,000
Senior Notes [Member] | 5.25% notes due 2026
Debt Instrument [Line Items]
Maturity	2026
Rate	5.25%			5.25%
Long-term debt, gross	$ 600,000		600,000
Senior Notes [Member] | 4.50% notes due 2027
Debt Instrument [Line Items]
Maturity	2027
Rate	4.50%			4.50%
Long-term debt, gross	$ 700,000		700,000
Senior Notes [Member] | 4.75% notes due 2028
Debt Instrument [Line Items]
Maturity	2028
Rate	4.75%			4.75%
Long-term debt, gross	$ 550,000		550,000
Senior Notes [Member] | 3.625% notes due 2029
Debt Instrument [Line Items]
Maturity	2029
Rate	3.625%			3.625%
Long-term debt, gross	$ 500,000		500,000
Senior Notes [Member] | 3.375% notes due 2031
Debt Instrument [Line Items]
Maturity	2031
Rate	3.375%			3.375%
Long-term debt, gross	$ 700,000		700,000
Senior Notes [Member] | 3.25% notes due 2033
Debt Instrument [Line Items]
Maturity	2033
Rate	3.25%			3.25%
Long-term debt, gross	$ 700,000		700,000
Minimum [Member] | Hud Mortgage
Debt Instrument [Line Items]
Maturity	2046
Maximum [Member] | Hud Mortgage
Debt Instrument [Line Items]
Maturity	2052
Revolving Credit Facility | Unsecured Debt [Member]
Debt Instrument [Line Items]
Revolving credit facility | £				£ 16
Maximum borrowing capacity	$ 1,450,000
Revolving Credit Facility | Unsecured Debt [Member] | United States Dollar Tranche [Member]
Debt Instrument [Line Items]
Rate	6.04%			6.04%
Revolving Credit Facility | Unsecured Debt [Member] | British Pound Sterling Tranche [Member]
Debt Instrument [Line Items]
Rate	5.50%			5.50%
Revolving Credit Facility | Unsecured Debt [Member] | Revolving Credit Facility Due 2025 [Member]
Debt Instrument [Line Items]
Maturity	2025
Rate	6.04%			6.04%
Revolving credit facility	$ 19,784		$ 19,246

DERIVATIVES AND HEDGING (Narrat

DERIVATIVES AND HEDGING (Narrative) (Details) - Mar. 31, 2023 £ in Millions, $ in Millions	USD ($) contract	GBP (£) contract
Interest Rate Swap | Cash Flow Hedging [Member] | Forward Starting Swaps [Member]
Derivative, notional amount | $	$ 400
Derivative, fixed interest rate	0.8675%	0.8675%
Derivative, Number of Instruments Held	5	5
Foreign Exchange Forward [Member] | Net Investment Hedging [Member]
Derivative, notional amount | £		£ 250
Derivative, forward exchange rate	1.3641	1.3641
Derivative, Number of Instruments Held	6	6

DERIVATIVES AND HEDGING (Locati

DERIVATIVES AND HEDGING (Location and the fair value of derivative instruments designated as hedges) (Details) - Other Assets [Member] - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Cash Flow Hedging [Member]
Cash flow hedges recorded at fair value, asset	$ 84,515	$ 92,990
Net Investment Hedging [Member]
Cash flow hedges recorded at fair value, asset	$ 29,936	$ 34,977

FINANCIAL INSTRUMENTS (Schedule

FINANCIAL INSTRUMENTS (Schedule of Financial Instruments) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
4.375% notes due 2023
Liabilities:
Notes issued, interest rate	4.375%	4.375%
4.950% notes due 2024
Liabilities:
Notes issued, interest rate	4.95%	4.95%
4.50% notes due 2025
Liabilities:
Notes issued, interest rate	4.50%	4.50%
5.25% notes due 2026
Liabilities:
Notes issued, interest rate	5.25%	5.25%
4.50% notes due 2027
Liabilities:
Notes issued, interest rate	4.50%	4.50%
4.75% notes due 2028
Liabilities:
Notes issued, interest rate	4.75%	4.75%
3.625% notes due 2029
Liabilities:
Notes issued, interest rate	3.625%	3.625%
3.375% notes due 2031
Liabilities:
Notes issued, interest rate	3.375%	3.375%
3.25% notes due 2033
Liabilities:
Notes issued, interest rate	3.25%	3.25%
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Assets:
Investments in direct financing leases - net	$ 8,670	$ 8,503
Real estate loans receivable - net	1,061,869	1,042,731
Non-real estate loans receivable - net	189,880	225,281
Total	1,260,419	1,276,515
Liabilities:
Revolving line of credit	19,784	19,246
Omega OP term loan	49,788	49,762
Total	5,287,934	5,286,834
Carrying (Reported) Amount, Fair Value Disclosure [Member] | 4.375% notes due 2023
Liabilities:
Notes Payable	349,811	349,669
Carrying (Reported) Amount, Fair Value Disclosure [Member] | 4.950% notes due 2024
Liabilities:
Notes Payable	398,989	398,736
Carrying (Reported) Amount, Fair Value Disclosure [Member] | 4.50% notes due 2025
Liabilities:
Notes Payable	398,636	398,446
Carrying (Reported) Amount, Fair Value Disclosure [Member] | 5.25% notes due 2026
Liabilities:
Notes Payable	598,024	597,848
Carrying (Reported) Amount, Fair Value Disclosure [Member] | 4.50% notes due 2027
Liabilities:
Notes Payable	694,204	693,837
Carrying (Reported) Amount, Fair Value Disclosure [Member] | 4.75% notes due 2028
Liabilities:
Notes Payable	545,168	544,916
Carrying (Reported) Amount, Fair Value Disclosure [Member] | 3.625% notes due 2029
Liabilities:
Notes Payable	492,192	491,890
Carrying (Reported) Amount, Fair Value Disclosure [Member] | 3.375% notes due 2031
Liabilities:
Notes Payable	685,830	685,382
Carrying (Reported) Amount, Fair Value Disclosure [Member] | 3.25% notes due 2033
Liabilities:
Notes Payable	690,735	690,506
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Hud Mortgage
Liabilities:
HUD debt - net	342,795	344,708
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Term Loan Maturity 2023 [Member]
Liabilities:
Term loan	2,161	2,161
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Term Loan Maturity 2024 [Member]
Liabilities:
Term loan	19,817	19,727
Estimate Of Fair Value, Fair Value Disclosure [Member]
Assets:
Investments in direct financing leases - net	8,670	8,503
Real estate loans receivable - net	1,087,327	1,080,890
Non-real estate loans receivable - net	190,553	228,498
Total	1,286,550	1,317,891
Liabilities:
Revolving line of credit	19,784	19,246
Omega OP term loan	50,000	50,000
Total	4,717,740	4,702,055
Estimate Of Fair Value, Fair Value Disclosure [Member] | 4.375% notes due 2023
Liabilities:
Notes Payable	347,763	347,998
Estimate Of Fair Value, Fair Value Disclosure [Member] | 4.950% notes due 2024
Liabilities:
Notes Payable	395,236	394,256
Estimate Of Fair Value, Fair Value Disclosure [Member] | 4.50% notes due 2025
Liabilities:
Notes Payable	383,068	388,920
Estimate Of Fair Value, Fair Value Disclosure [Member] | 5.25% notes due 2026
Liabilities:
Notes Payable	588,930	589,104
Estimate Of Fair Value, Fair Value Disclosure [Member] | 4.50% notes due 2027
Liabilities:
Notes Payable	652,666	657,468
Estimate Of Fair Value, Fair Value Disclosure [Member] | 4.75% notes due 2028
Liabilities:
Notes Payable	510,098	507,425
Estimate Of Fair Value, Fair Value Disclosure [Member] | 3.625% notes due 2029
Liabilities:
Notes Payable	418,695	411,090
Estimate Of Fair Value, Fair Value Disclosure [Member] | 3.375% notes due 2031
Liabilities:
Notes Payable	552,510	540,386
Estimate Of Fair Value, Fair Value Disclosure [Member] | 3.25% notes due 2033
Liabilities:
Notes Payable	511,931	507,976
Estimate Of Fair Value, Fair Value Disclosure [Member] | Hud Mortgage
Liabilities:
HUD debt - net	265,148	266,161
Estimate Of Fair Value, Fair Value Disclosure [Member] | Term Loan Maturity 2023 [Member]
Liabilities:
Term loan	2,161	2,275
Estimate Of Fair Value, Fair Value Disclosure [Member] | Term Loan Maturity 2024 [Member]
Liabilities:
Term loan	$ 19,750	$ 19,750

COMMITMENTS AND CONTINGENCIES_2

COMMITMENTS AND CONTINGENCIES (Narrative) (Details) - USD ($) $ in Thousands		3 Months Ended
	Dec. 27, 2022	Mar. 31, 2023	Sep. 30, 2022
Litigation settlement, amount awarded to other party	$ 30,750
Increase in legal reserve			$ 31,000
Increase in insurance receivable			$ 31,000
Indemnification Agreement [Member]
Total commitments		$ 8,800
Minimum [Member] | Indemnification Agreement [Member]
Indemnification agreement occurrence period		18 months
Maximum [Member] | Indemnification Agreement [Member]
Indemnification agreement occurrence period		72 months

COMMITMENTS AND CONTINGENCIES_3

COMMITMENTS AND CONTINGENCIES (Schedule of remaining commitments) (Detail) $ in Thousands	Mar. 31, 2023 USD ($)
Remaining commitments	$ 381,920
Other Real Estate Loans [Member] | Investment Type Characteristic Real Estate Related Loans [Member]
Remaining commitments	58,073
Non Real Estate Loans Receivable [Member]
Remaining commitments	95,381
Construction and capital expenditure mortgage loan commitments
Remaining commitments	4,365
Lessor construction and capital commitments under lease agreements
Remaining commitments	$ 224,101

EARNINGS PER SHARE (Schedule of

EARNINGS PER SHARE (Schedule of Computation of Basic and Diluted Earnings per Share) (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Numerator:
Net income available to common stockholders - basic	$ 35,942	$ 189,607
Add: net income attributable to OP Units	1,048	5,549
Net income available to common stockholders - diluted	$ 36,990	$ 195,156
Denominator:
Denominator for basic earnings per share	234,954	239,527
Effect of dilutive securities:
Common stock equivalents	1,384	963
Noncontrolling interest - Omega OP Units	6,850	7,066
Denominator for diluted earnings per share	243,188	247,556
Earnings per share - basic:
Net income available to common stockholders	$ 0.15	$ 0.79
Earnings per share - diluted:
Net income available to common stockholders	$ 0.15	$ 0.79

SUPPLEMENTAL DISCLOSURE TO CO_3

SUPPLEMENTAL DISCLOSURE TO CONSOLIDATED STATEMENTS OF CASH FLOWS (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of cash and cash equivalents and restricted cash:
Cash and cash equivalents	$ 245,182	$ 491,247	$ 297,103
Restricted cash	3,336	3,534	3,541
Cash, cash equivalents and restricted cash at end of period	248,518	494,781	$ 300,644	$ 24,411
Supplemental Information:
Interest paid during the period, net of amounts capitalized	61,451	60,478
Taxes paid during the period	1,636	1,716
Non cash investing activities
Non cash acquisition of real estate		(11,133)
Non cash financing activities
Non-cash contribution from noncontrolling interest holder in consolidated joint venture		2,903
Change in fair value of cash flow hedges	(13,516)	24,489
Remeasurement of debt denominated in a foreign currency	$ 538	$ (320)

SUBSEQUENT EVENTS (Narrative) (

SUBSEQUENT EVENTS (Narrative) (Details)		1 Months Ended	3 Months Ended
	May 01, 2023 USD ($) facility	Apr. 30, 2023 USD ($) loan facility	Jun. 30, 2023 USD ($) facility	Mar. 31, 2023 USD ($) facility	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)
Subsequent Event [Line Items]
Collection of loan principal | $				$ 52,011,000	$ 79,101,000
Number of real estate properties | facility				931
Contractual obligation | $				$ 381,920,000
Real Estate Assets Acquired | $				$ 26,400,000
Skilled Nursing Facilities [Member]
Subsequent Event [Line Items]
Number of real estate properties | facility				661
Mortgage Receivable [Member]
Subsequent Event [Line Items]
Financing receivable, gross | $				$ 736,199,000		$ 731,523,000
Other Real Estate Loans [Member]
Subsequent Event [Line Items]
Financing receivable, gross | $				$ 415,110,000		$ 412,568,000
Facilities Sold
Subsequent Event [Line Items]
Number of real estate properties | facility				2
Guardian [Member] | Facilities Intended To Sell Per Agreement [Member]
Subsequent Event [Line Items]
Number of real estate properties | facility				5
4 of 17 Facilities | Facilities Acquired Added To Master Lease [Member] | Skilled Nursing Facilities [Member] | Existing Operator [Member]
Subsequent Event [Line Items]
Number of real estate properties | facility		4
Subsequent Event [Member]
Subsequent Event [Line Items]
Real estate properties sold | facility			5
Joint venture ownership percentage in 2 ventures		20%
Subsequent Event [Member] | Skilled Nursing Facilities [Member]
Subsequent Event [Line Items]
Percentage of initial annual cash yield	10%
Percentage of annual escalators	2.50%
Real Estate Assets Acquired | $	$ 13,800,000
Subsequent Event [Member] | Skilled Nursing Facilities [Member] | Existing Operator [Member]
Subsequent Event [Line Items]
Number of real estate properties | facility		17
Subsequent Event [Member] | Facilities Acquired | Skilled Nursing Facilities [Member]
Subsequent Event [Line Items]
Number of real estate properties | facility	1
Subsequent Event [Member] | Guardian [Member] | Mortgage Receivable [Member]
Subsequent Event [Line Items]
Financing receivable, gross | $			$ 0
Collection of loan principal | $			$ 35,200,000
Subsequent Event [Member] | Guardian [Member] | Facilities Sold By Operator and Removed From Mortgage Lease [Member]
Subsequent Event [Line Items]
Number of real estate properties | facility			4
Subsequent Event [Member] | Guardian [Member] | Facilities Sold or Classified As Held for Sale [Member]
Subsequent Event [Line Items]
Number of real estate properties | facility			5
Subsequent Event [Member] | 6 Facilities | Guardian [Member]
Subsequent Event [Line Items]
Total proceeds | $			$ 35,800,000
Subsequent Event [Member] | 1 of 6 Facilities | Guardian [Member] | Facilities Not Classified As Held For Sale [Member]
Subsequent Event [Line Items]
Financing receivable, face amount | $			$ 12,000,000
Subsequent Event [Member] | 1 of 6 Facilities | Guardian [Member] | Facilities Sold
Subsequent Event [Line Items]
Number of real estate properties | facility			1
Subsequent Event [Member] | 17 Facilities | Existing Operator [Member]
Subsequent Event [Line Items]
Contractual obligation | $		$ 222,600,000
Subsequent Event [Member] | 4 of 17 Facilities | Existing Operator [Member]
Subsequent Event [Line Items]
Real Estate Assets Acquired | $		$ 114,800,000
Subsequent Event [Member] | 4 of 17 Facilities | Skilled Nursing Facilities [Member] | Existing Operator [Member]
Subsequent Event [Line Items]
Percentage of initial annual cash yield		9.50%
Percentage of annual escalators		2.50%
Subsequent Event [Member] | 4 of 17 Facilities | Facilities Acquired | Skilled Nursing Facilities [Member] | Existing Operator [Member]
Subsequent Event [Line Items]
Number of real estate properties | facility		4
Subsequent Event [Member] | 13 of 17 Facilities | Existing Operator [Member]
Subsequent Event [Line Items]
Real estate and non real estate related number of loans | loan		5
Subsequent Event [Member] | 13 of 17 Facilities | Skilled Nursing Facilities [Member] | Existing Operator [Member]
Subsequent Event [Line Items]
Number of real estate properties | facility		13
Contractual obligation | $		$ 107,800,000
Subsequent Event [Member] | 13 of 17 Facilities | Weighted Average [Member] | Existing Operator [Member]
Subsequent Event [Line Items]
Interest rate		12%