Commitment And Contingencies [Line Items]

No definition available.

Name:	mpw_CommitmentAndContingenciesLineItems
Namespace Prefix:	mpw_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Lease agreement annual incremental interest percentage.

+ References

No definition available.

+ Details

Name:	mpw_LeaseAgreementAnnualIncrementalInterestPercentage
Namespace Prefix:	mpw_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of extension options in current lease contract.

+ References

No definition available.

+ Details

Name:	mpw_NumberOfExtensionOptionsInCurrentLeaseContract
Namespace Prefix:	mpw_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of Ownership Interest In Operator Facilities

+ References

No definition available.

+ Details

Name:	mpw_PercentageOfOwnershipInterestInOperatorFacilities
Namespace Prefix:	mpw_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477

+ Details

Name:	us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Term of the lessee's leasing arrangement, 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_LesseeLeasingArrangementsOperatingLeasesTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of the lessor's leasing arrangement renewal, 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_LessorLeasingArrangementsOperatingLeasesRenewalTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of the lessor's leasing arrangement, 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_LessorLeasingArrangementsOperatingLeasesTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- 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

- Details

Name:	us-gaap_StatementGeographicalAxis=country_DE
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorPropertyClassAxis=mpw_AcuteCareHospitalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorCustomersAxis=mpw_MedianMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RestructuringCostAndReserveAxis=mpw_FacilityClosingOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=mpw_MedianMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementScenarioAxis=us-gaap_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementGeographicalAxis=mpw_WashingtonAndIdahoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementGeographicalAxis=mpw_WestVirginiaAndOhioMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorCustomersAxis=mpw_AlectoHealthcareServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Commitments and Contingencies - Additional Information (Detail) € in Millions, $ in Millions					3 Months Ended		8 Months Ended
	Mar. 31, 2017 EUR (€)	Mar. 08, 2017 USD ($) Facility Hospital	Sep. 28, 2016 USD ($) Hospital	Jul. 20, 2016 EUR (€) Hospital	Jun. 30, 2017 Hospital	Mar. 31, 2017 EUR (€) Hospital	Mar. 31, 2017 USD ($) Hospital
Germany [Member] \| Acute Care Hospital [Member] \| MEDIAN [Member]
Commitment And Contingencies [Line Items]
Number of facilities acquired						1
Purchase price of acquisition \| €						€ 20.0
Term of lease, years						27 years
Germany [Member] \| Facility Closing One [Member]
Commitment And Contingencies [Line Items]
Number of facilities acquired				20			7
Purchase price of acquisition	€ 49.5			€ 215.7			$ 49.5
Germany [Member] \| Facility Closing One [Member] \| MEDIAN [Member]
Commitment And Contingencies [Line Items]
Term of lease, years				27 years
Lease rent increase percentage				70.00%
Germany [Member] \| Scenario, Forecast [Member] \| Facility Closing One [Member]
Commitment And Contingencies [Line Items]
Number of facilities acquired					13
Washington and Idaho [Member] \| Acute Care Hospital [Member]
Commitment And Contingencies [Line Items]
Number of facilities acquired			1
Purchase price of acquisition \| $			$ 17.5
West Virginia and Ohio [Member] \| Acute Care Hospital [Member] \| Alecto Healthcare Services [Member]
Commitment And Contingencies [Line Items]
Number of facilities acquired		2
Purchase price of acquisition \| $		$ 40.0
Lease rent increase percentage		2.00%
Term of lease, years		15 years
Term of lease extension, years		5 years
Number of lease extension options in current lease contract \| Facility		3
Ownership interest percentage in operator facility		20.00%