XML 94 R91.htm IDEA: XBRL DOCUMENT v2.4.1.9
Fair Value of Financial Instruments - Summary Showing Sensitivity Analysis by Using Basis Point Variations (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
+100 basis points [Member]  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Estimated Increase (Decrease) In Fair Value of Financial Instruments $ (451)mpw_EstimatedIncreaseDecreaseInFairValueOfFinancialInstrument
/ us-gaap_FinancialInstrumentAxis
= mpw_PlusHundredBasisPointsMember
- 100 basis points [Member]  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Estimated Increase (Decrease) In Fair Value of Financial Instruments $ 451mpw_EstimatedIncreaseDecreaseInFairValueOfFinancialInstrument
/ us-gaap_FinancialInstrumentAxis
= mpw_MinusHundredBasisPointsMember