Fair Value of Financial Instruments - Additional Information (Detail)	12 Months Ended
Dec. 31, 2020 Health_Center
Fair Value, Recurring \| Colombia [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Number of facilities acquired	3

Financial instruments measured at fair value on recurring basis.

No definition available.

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