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Real Estate and Loans Receivable - Leasing Operations - Additional Information (Detail)
 0 Months Ended 12 Months Ended
Jul. 03, 2012
Dec. 31, 2014
Ernest Health, Inc [Member]    
Significant Acquisitions and Disposals [Line Items]    
Number of direct financing leases   14mpw_NumberOfDirectFinancingLeases
/ us-gaap_MajorCustomersAxis
= mpw_ErnestHealthIncMember
Prime Facilities [Member]    
Significant Acquisitions and Disposals [Line Items]    
Number of direct financing leases   5mpw_NumberOfDirectFinancingLeases
/ us-gaap_MajorCustomersAxis
= mpw_PrimeFacilitiesMember
Prime Health Care Services [Member] | Leasing Operations [Member]    
Significant Acquisitions and Disposals [Line Items]    
Master lease term   10 years
Master lease agreements, number of renewal options 2mpw_NumberOfFacilitiesSubjectToRenewalUnderMasterLeaseAgreements
/ us-gaap_MajorCustomersAxis
= mpw_PrimeHealthCareServicesMember
/ us-gaap_RealEstatePropertiesAxis
= mpw_LeasingOperationsMember		  
Master lease, optional lease term   5 years
Lease escalation percentage 100.00%mpw_LeaseEscalationPercentage
/ us-gaap_MajorCustomersAxis
= mpw_PrimeHealthCareServicesMember
/ us-gaap_RealEstatePropertiesAxis
= mpw_LeasingOperationsMember