Debt - Australian Term Loan - Additional Information (Detail) - Term Loan [Member] - Bank of America, N.A - Australia [Member] - USD ($)	Jun. 27, 2019	May 23, 2019
Debt Instrument [Line Items]
Line of credit facility, Borrowing capacity		$ 1,200,000,000
Debt instrument maturity date		May 23, 2024
Debt instrument effective date	Jul. 03, 2019
Effective interest rate	1.20%
Reference rate	0.00%
Senior unsecured notes, interest rate	2.45%
Credit Rating
Debt Instrument [Line Items]
Variable interest rate	1.25%
Minimum [Member]
Debt Instrument [Line Items]
Applicable margin adjustable based on pricing grid, percentage		0.85%
Maximum [Member]
Debt Instrument [Line Items]
Applicable margin adjustable based on pricing grid, percentage		1.65%

Debt instrument effective date.

No definition available.

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- Definition

Debt instrument interest rate adjustable based on pricing grid percentage.

+ References

No definition available.

+ Details

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- Definition

Debt instrument percentage of reference rate for calculation of fixed interest rate.

+ References

No definition available.

+ Details

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Namespace Prefix:	mpw_
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- Definition

Debt Instrument variable interest rate.

+ References

No definition available.

+ Details

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Namespace Prefix:	mpw_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (a)
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-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (b)
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- 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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- 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))
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-Publisher FASB
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-SubTopic 10
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-Paragraph 2
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-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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-Publisher FASB
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+ Details

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- Details

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