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Fair Value Disclosures (Assets And Liabilities Measured At Fair Value On A Non-Recurring Basis) (Details) (USD $)
0 Months Ended 12 Months Ended
Mar. 03, 2011
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Apr. 03, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Impairment charges   $ 0us-gaap_AssetImpairmentCharges $ 0us-gaap_AssetImpairmentCharges $ 3,074,000us-gaap_AssetImpairmentCharges  
Notes assumed 3,800,000us-gaap_NotesAssumed1        
Investment in a direct financing lease, net   $ 199,332,000us-gaap_NetInvestmentInDirectFinancingAndSalesTypeLeases $ 242,212,000us-gaap_NetInvestmentInDirectFinancingAndSalesTypeLeases   $ 45,900,000us-gaap_NetInvestmentInDirectFinancingAndSalesTypeLeases
Estimated Current Market Rate Used As Discount Factor To Determine Fair Value of Notes 5.29%epr_EstimatedCurrentMarketRateUsedAsDiscountFactorToDetermineFairValueOfNotes