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Real Estate and Loans Receivable - Florence Facility - Additional Information (Detail) (Florence acute care facility [Member], USD $)
Mar. 06, 2013
Dec. 31, 2014
Significant Acquisitions and Disposals [Line Items]    
Business acquisition cost of acquired entity $ 27,400,000mpw_BusinessAcquisitionsCostOfAcquiredEntityPurchasePrice  
Outstanding rent receivables 1,000,000us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent  
Letter of Credit [Member]
    
Significant Acquisitions and Disposals [Line Items]    
Letter of credit outstanding   $ 1,200,000mpw_LetterOfCreditToCoverFutureLeaseObligations
/ us-gaap_CreditFacilityAxis
= us-gaap_LetterOfCreditMember
/ us-gaap_MajorCustomersAxis
= mpw_FlorenceAcuteCareFacilityMember