Amount of properties closed.

No definition available.

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Period Type:	instant

- Definition

Business acquisition purchase price portion funded by debt.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Lease agreement annual incremental interest percentage.

+ References

No definition available.

+ Details

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

- Definition

Lease agreement increase in consumer price index floor rate minimum.

+ References

No definition available.

+ Details

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

- Definition

Lease agreement interest percentage.

+ References

No definition available.

+ Details

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Namespace Prefix:	mpw_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Lease expiration, month and year.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Number of beds acquired.

+ References

No definition available.

+ Details

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Namespace Prefix:	mpw_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of lease extension options.

+ References

No definition available.

+ Details

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Namespace Prefix:	mpw_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of properties disposed.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Operating leases, income statement, lease income.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Percentage of ownership interest in operator facilities.

+ References

No definition available.

+ Details

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

- Definition

The capitalized costs incurred during the period (excluded from amortization) to purchase, lease or otherwise acquire an unproved property, including costs of lease bonuses and options to purchase or lease properties, the portion of costs applicable to minerals when land including mineral rights is purchased in fee, brokers' fees, recording fees, legal costs, and other costs incurred in acquiring properties.

+ References

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-Topic 932
-SubTopic 10
-Section S99
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-URI http://asc.fasb.org/extlink&oid=82851474&loc=d3e511914-122862

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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

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

- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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-SubTopic 10
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-SubTopic 30
-Section 30
-Paragraph 8
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-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Term of lessor's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888428&loc=SL77919359-209981

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue and sublease revenue.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-SubTopic 20
-Section 25
-Paragraph 1
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow for acquisition of or capital improvements to properties held for investment (operating, managed, leased) or for use.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585

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Balance Type:	credit
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Real Estate and Lending Activities - 2017 Activity - Additional Information (Detail) € in Millions						1 Months Ended		3 Months Ended		5 Months Ended	6 Months Ended
	Jun. 06, 2018 EUR (€) Hospital	Jun. 22, 2017 EUR (€)	Jun. 01, 2017 USD ($) RenewalOption Bed	May 01, 2017 USD ($) Hospital Bed	Jan. 30, 2017 EUR (€)	Dec. 31, 2016 EUR (€) Property	Jul. 31, 2016 EUR (€) Property	Jun. 30, 2017 USD ($) Hospital Property	Jun. 30, 2017 EUR (€) Hospital Property	Jan. 30, 2017 EUR (€) Hospital	Jun. 30, 2017 USD ($)
Germany [Member] \| Rehabilitation Hospital with Covenant Health System [Member]
Business Acquisition [Line Items]
Number of facilities acquired \| Hospital	4									6
Purchase price of acquisition \| €					€ 8.4					€ 44.1
Germany [Member] \| Rehabilitation Hospital with Covenant Health System [Member] \| MEDIAN [Member]
Business Acquisition [Line Items]
Term of lease	27 years
Lease rent increase percentage	70.00%
Lease rate	1.00%
Germany [Member] \| Acute Care Hospital [Member]
Business Acquisition [Line Items]
Purchase price of acquisition \| €	€ 23.0
2017 [Member] \| Business Acquisitions [Member]
Business Acquisition [Line Items]
Revenue contributed by the acquired entity								$ 8,200,000			$ 8,400,000
Income contributed by the acquired entity								6,000,000			6,100,000
Acquisition related costs								$ 9,100,000			$ 9,600,000
2017 [Member] \| Acute Care Hospital [Member] \| Alecto Healthcare Services [Member] \| Ohio Valley Medical Center [Member]
Business Acquisition [Line Items]
Number of beds acquired \| Bed			218
2017 [Member] \| Acute Care Hospital [Member] \| Alecto Healthcare Services [Member] \| East Ohio Regional Hospital [Member]
Business Acquisition [Line Items]
Number of beds acquired \| Bed			139
2017 [Member] \| Germany [Member] \| Rehabilitation Hospital with Covenant Health System [Member] \| Third Master Lease [Member]
Business Acquisition [Line Items]
Number of facilities acquired							20	11	11
Acquisition costs \| €							€ 215.7		€ 127.0
Term of lease									27 years
Lease agreement, end date								2043-08	2043-08
Number of properties closed \| Property						7		2	2
Amount of properties closed \| €						€ 49.5			€ 39.2
2017 [Member] \| Germany [Member] \| Acute Care Hospital [Member] \| MEDIAN [Member]
Business Acquisition [Line Items]
Lease agreement, end date		2042-12
Purchase price of acquisition \| €		€ 19.4
Lease rent increase percentage		70.00%
Lease rate		1.00%
2017 [Member] \| West Virginia and Ohio [Member] \| Acute Care Hospital [Member] \| Alecto Healthcare Services [Member]
Business Acquisition [Line Items]
Term of lease			15 years
Purchase price of acquisition			$ 40,000,000
Percentage of increase in annual rent			2.00%
Number of lease extension options \| RenewalOption			3
Term of lease extension, years			5 years
Additional fund committed to the tenant for capital improvements			$ 20,000,000
Purchase price of acquisition funded			$ 0
Ownership interest percentage in operator facility			20.00%
2017 [Member] \| Florida, Ohio, and Pennsylvania [Member] \| Community Health Systems, Inc. [Member]
Business Acquisition [Line Items]
Number of facilities acquired \| Hospital				8
Purchase price of acquisition				$ 301,300,000
2017 [Member] \| IDAHO, Lewiston \| Acute Care Hospital [Member] \| St. Joseph Regional Medical Center [Member]
Business Acquisition [Line Items]
Purchase price of acquisition				$ 87,500,000
Number of beds acquired \| Bed				145