Debt instrument issuance percentage of face value.

No definition available.

Name:	ohi_DebtInstrumentIssuancePercentageOfFaceValue
Namespace Prefix:	ohi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents amount of prepayment of term loan facility.

+ References

No definition available.

+ Details

Name:	ohi_PrepaymentOfTermLoanFacility
Namespace Prefix:	ohi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-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=6877327&loc=d3e13212-122682

Reference 2: 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=117815213&loc=d3e19207-110258

+ Details

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

- Definition

Fair value amount of debt instrument that was repurchased.

+ References

No definition available.

+ Details

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

- Definition

The cash inflow from a borrowing with the highest claim on the assets of the entity in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle, if longer).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585

+ Details

Name:	us-gaap_ProceedsFromIssuanceOfSeniorLongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentAxis=ohi_SeniorNotesDue2023Member
Namespace Prefix:
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Balance Type:
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- Details

Name:	us-gaap_DebtInstrumentAxis=ohi_SeniorNotesDue2024Member
Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ohi_SeniorNotesDue2025Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ohi_SeniorNotesDue2026Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ohi_SeniorNotesDue2027Member
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_DebtInstrumentAxis=ohi_SeniorNotesDue2028Member
Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ohi_SeniorNotesDue2029Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_DebtInstrumentAxis=ohi_SeniorNotesDue2025AggregateMember
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BORROWING ARRANGEMENTS (Senior Notes) (Detail) - USD ($) $ in Thousands								1 Months Ended	12 Months Ended
	Sep. 20, 2019	Apr. 05, 2017	Apr. 04, 2017	Jun. 12, 2016	Sep. 23, 2015	Sep. 11, 2014	Mar. 11, 2014	Mar. 18, 2015	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Apr. 28, 2017	Jul. 12, 2016
4.375% notes due 2023
Interest rate									4.375%	4.375%
4.95% notes due 2024
Interest rate									4.95%	4.95%
4.50% notes due 2025
Interest rate									4.50%	4.50%
5.25% notes due 2026
Interest rate									5.25%	5.25%
4.50% notes due 2027
Interest rate									4.50%	4.50%
4.75% notes due 2028
Interest rate									4.75%	4.75%
3.625% notes due 2029
Interest rate									3.625%
Tranche A Two Term Loan Member
Prepayment of term loan facility		$ 200,000
Senior Notes [Member] \| 4.375% notes due 2023
Long-term Debt, Gross									$ 700,000	$ 700,000			$ 700,000
Interest rate									4.375%				4.375%
Debt instrument issuance percentage of face value				99.739%
Proceeds from issuance of senior long-term debt				$ 692,000
Debt Instrument, Maturity Date									Aug. 01, 2023
Senior Notes [Member] \| 4.95% notes due 2024
Long-term Debt, Gross							$ 400,000		$ 400,000	400,000
Interest rate							4.95%		4.95%
Debt instrument issuance percentage of face value							98.58%
Proceeds from issuance of senior long-term debt							$ 394,300
Debt Instrument, Maturity Date									Apr. 01, 2024
Senior Notes [Member] \| 5.875% notes due 2024 [Member]
Long-term Debt, Gross												$ 400,000
Interest rate											5.875%	5.875%
Debt Instrument, Repurchase Amount												$ 400,000
Senior Notes [Member] \| 4.50% notes due 2025
Long-term Debt, Gross			$ 150,000			$ 250,000			$ 400,000	400,000
Interest rate						4.50%			4.50%
Debt instrument issuance percentage of face value			99.54%			99.131%
Proceeds from issuance of senior long-term debt			$ 149,900			$ 247,800
Debt Instrument, Maturity Date									Jan. 15, 2025
Senior Notes [Member] \| 4.50 % note due 2025 (2014 and 2017 issues)
Long-term Debt, Gross						$ 400,000
Senior Notes [Member] \| 5.25% notes due 2026
Long-term Debt, Gross					$ 600,000				$ 600,000	600,000
Interest rate					5.25%				5.25%
Debt instrument issuance percentage of face value					99.717%
Proceeds from issuance of senior long-term debt					$ 594,400
Debt Instrument, Maturity Date									Jan. 15, 2026
Senior Notes [Member] \| 4.50% notes due 2027
Long-term Debt, Gross								$ 700,000	$ 700,000	700,000
Interest rate								4.50%	4.50%
Debt instrument issuance percentage of face value								98.546%
Proceeds from issuance of senior long-term debt								$ 683,000
Debt Instrument, Maturity Date									Apr. 01, 2027
Senior Notes [Member] \| 4.75% notes due 2028
Long-term Debt, Gross			$ 550,000						$ 550,000	$ 550,000
Interest rate			4.75%						4.75%
Debt instrument issuance percentage of face value			98.978%
Proceeds from issuance of senior long-term debt			$ 540,800
Debt Instrument, Maturity Date									Jan. 15, 2028
Senior Notes [Member] \| 3.625% notes due 2029
Long-term Debt, Gross	$ 500,000								$ 500,000
Interest rate	3.625%								3.625%
Debt instrument issuance percentage of face value	98.542%
Proceeds from issuance of senior long-term debt	$ 487,800