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Variable Interest Entities (Narrative) (Details) - SVVI [Member] $ in Millions | Sep. 30, 2015 USD ($)
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Investment in unconsolidated VIE | $ 201.3
Unconsolidated investment maximum exposure to loss | $ 201.3

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- Definition Investment in unconsolidated variable interest entities + References No definition available. + Details
Name: | epr_InvestmentInUnconsolidatedVariableInterestEntities
Namespace Prefix: | epr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph b -URI http://asc.fasb.org/extlink&oid=28200181&loc=d3e5728-111685 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=28200181&loc=d3e5747-111685 + Details
Name: | us-gaap_VariableInterestEntityEntityMaximumLossExposureAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=epr_SvviMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |