Debt instrument maturity year.

No definition available.

Name:	mpw_DebtInstrumentMaturityYear
Namespace Prefix:	mpw_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt instrument redemption amount.

+ References

No definition available.

+ Details

Name:	mpw_DebtInstrumentRedemptionAmount
Namespace Prefix:	mpw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Debt refinancing charge.

+ References

No definition available.

+ Details

Name:	mpw_DebtRefinancingCharge
Namespace Prefix:	mpw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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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=120391452&loc=d3e13212-122682

+ Details

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
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=119993939&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 the fee for available but unused credit capacity under the credit facility.

+ 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 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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

- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

+ References

+ Details

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

- Definition

The number of businesses acquired by the entity during the period.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfBusinessesAcquired
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The cash inflow from amounts received from issuance of long-term debt that is wholly or partially secured by collateral. Excludes proceeds from tax exempt secured debt.

+ 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=121586364&loc=d3e3255-108585

+ Details

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

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

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Namespace Prefix:
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=mpw_BarclaysBankPLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=country_DE
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Data Type:	na
Balance Type:
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Debt - Additional Information (Detail) € in Millions					1 Months Ended		12 Months Ended
Debt - Additional Information (Detail) € in Millions	Dec. 04, 2020 USD ($)	Dec. 17, 2019 Hospital	Aug. 31, 2018 Hospital	Aug. 03, 2018 EUR (€)	Jul. 31, 2019 USD ($)	Aug. 31, 2018 Hospital	Dec. 31, 2020 USD ($) Hospital	Dec. 31, 2019	Dec. 23, 2019 USD ($)	Feb. 22, 2016 USD ($)	Apr. 17, 2014 USD ($)
3.500% Senior Unsecured Notes Due 2031 [Member]
Debt Instrument [Line Items]
Senior unsecured notes face amount	$ 1,300,000,000
Senior unsecured notes, interest rate	3.50%						3.50%	3.50%
Senior unsecured notes, maturity year	2031
6.375% Senior Unsecured Notes due 2024 [Member]
Debt Instrument [Line Items]
Senior unsecured notes face amount										$ 500,000,000
Senior unsecured notes, interest rate							6.375%	6.375%		6.375%
Senior unsecured notes, maturity year							2024
Senior unsecured notes redemption amount including accrued and unpaid interest							$ 500,000,000.0
5.500% Senior Unsecured Notes Due 2024 [Member]
Debt Instrument [Line Items]
Senior unsecured notes face amount											$ 300,000,000
Senior unsecured notes, interest rate							5.50%	5.50%			5.50%
Senior unsecured notes, maturity year							2024
Senior unsecured notes redemption amount including accrued and unpaid interest							$ 300,000,000.0
Term Loans [Member]
Debt Instrument [Line Items]
Debt refinancing costs							$ 28,000,000
Accelerated debt issue cost amortization expense									$ 2,000,000.0
Senior Unsecured Term Loan Facility [Member] \| Barclays Bank P L C [Member]
Debt Instrument [Line Items]
Underwriting and other fees					$ 4,000,000
Acute Care Hospital [Member]
Debt Instrument [Line Items]
Number of facilities acquired \| Hospital		10					2
Primotop Holdings S.a.r.l. [Member] \| Germany [Member] \| Acute Care Hospital [Member]
Debt Instrument [Line Items]
Proceeds from issuance of new secured debt \| €				€ 655
Number of facilities acquired \| Hospital						71
Primotop Holdings S.a.r.l. [Member] \| Germany [Member] \| Acute Care Hospital [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Number of facilities acquired \| Hospital			71
Debt instrument term			7 years
Debt instrument swapped fixed rate			2.30%			2.30%