Debt instrument extension period duration.

No definition available.

Name:	ohi_DebtInstrumentExtensionPeriodDuration
Namespace Prefix:	ohi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt instrument number of available extensions.

+ References

No definition available.

+ Details

Name:	ohi_DebtInstrumentNumberOfAvailableExtensions
Namespace Prefix:	ohi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the carrying value of senior notes and other unsecured borrowings net.

+ References

No definition available.

+ Details

Name:	ohi_SeniorNotesAndOtherUnsecuredBorrowingsNet
Namespace Prefix:	ohi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

+ Details

Name:	us-gaap_DebtInstrumentMaturityDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28555-108399

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of long-term loans payable classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_DebtInstrumentAxis=ohi_OmegaOpTermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_UnsecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ohi_Omega2017OpTermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ohi_OmegaOpTermLoanReplacedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
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Balance Type:
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- Details

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Namespace Prefix:
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BORROWING ARRANGEMENTS (OP Term Loan) (Details) $ in Thousands		1 Months Ended	12 Months Ended
	Apr. 30, 2021 USD ($) item	May 25, 2017 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Senior notes and other unsecured borrowings - net			$ 4,891,455	$ 4,698,570
Omega OP Term Loan Facility \| Unsecured Debt [Member]
Total term loans - net	$ 50,000		$ 50,000
Debt instrument, maturity date			Apr. 30, 2025
Debt issuance costs, gross	$ 400
Debt instrument number of available extensions \| item	2
Debt instrument extension period duration	6 months
2017 Omega Op Term Loan [Member] \| Unsecured Debt [Member]
Total term loans - net				$ 50,000
2017 Omega Op Term Loan Replaced [Member] \| Unsecured Debt [Member]
Total term loans - net		$ 100,000
Minimum [Member] \| Omega OP Term Loan Facility \| Unsecured Debt [Member]
Basis spread on variable rate	0.85%
Minimum [Member] \| 2017 Omega Op Term Loan Replaced [Member] \| Unsecured Debt [Member]
Basis spread on variable rate		0.90%
Maximum [Member] \| Omega OP Term Loan Facility \| Unsecured Debt [Member]
Basis spread on variable rate	1.85%
Maximum [Member] \| 2017 Omega Op Term Loan Replaced [Member] \| Unsecured Debt [Member]
Basis spread on variable rate		1.90%