3. Rental Properties [Abstract]

No definition available.

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- Definition

Mortgage Note Receivable from Property Sale

+ References

No definition available.

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- Definition

Number of Reportable Operating Segments

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

number of properties sold

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Percentage of Lease Revenue in Total Revenue

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Range of settlement date for shares for non-employee trustee from grant date, minimum

+ References

No definition available.

+ Details

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
-Paragraph 21
-Subparagraph (a)
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

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Balance Type:	na
Period Type:	duration

- Definition

The carrying amount of deferred costs.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue and sublease revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=77902458&loc=d3e39896-112707

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

This element represents the rental revenue earned during the period from lessee-operators based on revenues generated in their operations, generally in excess of a base amount. Such rental revenue is generally stipulated in the lease agreement, usually will provide for a fixed percentage of revenue to be paid as additional (or possibly only) rent due the lessor, and may be based on gross revenues, net revenues, or multiple variations thereof. Percentage rent is often required under leases with retail outlets located on premises owned by hoteliers, cruise lines, others in the hospitality industry, and shopping mall operators, among others.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(e))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

Name:	us-gaap_RevenueRecognitionAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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Balance Type:	debit
Period Type:	duration

- References

No definition available.

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
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- Definition

The noncash expense that accounts for the value of stock or unit options distributed to employees as compensation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Difference between actual rental income due and rental income recognized on a straight-line basis.

+ References

+ Details

Name:	us-gaap_StraightLineRent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

In accordance with the provisions of their lease agreement, this element represents allowable charges due a landlord from its tenant. In retail store and office building leases, for example, tenant reimbursements may cover items such as taxes, utilities, and common area expenses.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_FurnitureAndFixturesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingImprovementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
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Period Type:

- Details

Name:	us-gaap_TitleOfIndividualAxis=epr_NonEmployeeTrusteesMember
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Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=epr_EducationReportableOperatingSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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Summary of Significant Accounting Policies (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) segment	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($) properties
Operating Segments
Number of Reportable Operating Segments \| segment			4
Revenue Recognition [Abstract]
Straight Line Rent			$ 3,900	$ 9,100
Tenant Reimbursements			7,700	7,700
Percentage rents			3,000	2,500
Concentrations of Risk [Abstract]
Rental revenue	$ 137,019	$ 123,410	269,943	234,196
Share-based Compensation [Abstract]
Share based compensation			$ 7,608	6,961
Share based compensation, future vesting period minimum (in years)			4 years
Range of settlement date for shares for non-employee trustee from grant date, minimum (in years)			1 year
Share based compensation expense related to employees and trustees			$ 200
Deferred Costs	36,000		$ 36,000		$ 32,900
American Multi-Cinema, Inc. [Member]
Concentrations of Risk [Abstract]
Percent of megaplex theatre rental leased by AMC			34.00%
Rental revenue			$ 57,400	$ 57,600
Percentage of lease revenue in total revenue			16.00%	20.80%
Minimum [Member]
Share-based Compensation [Abstract]
Share based compensation, future vesting period minimum (in years)			3 years
Maximum [Member]
Share-based Compensation [Abstract]
Share based compensation, future vesting period minimum (in years)			4 years
Building [Member] \| Minimum [Member]
Rental Properties [Abstract]
Estimated useful live of buildings (in years)			30 years
Building [Member] \| Maximum [Member]
Rental Properties [Abstract]
Estimated useful live of buildings (in years)			40 years
Furniture, fixtures & equipment [Member] \| Minimum [Member]
Rental Properties [Abstract]
Estimated useful live of buildings (in years)			3 years
Furniture, fixtures & equipment [Member] \| Maximum [Member]
Rental Properties [Abstract]
Estimated useful live of buildings (in years)			25 years
Building Improvements [Member] \| Minimum [Member]
Rental Properties [Abstract]
Estimated useful live of buildings (in years)			10 years
Building Improvements [Member] \| Maximum [Member]
Rental Properties [Abstract]
Estimated useful live of buildings (in years)			20 years
Share Options [Member]
Share-based Compensation [Abstract]
Share based compensation, future vesting period minimum (in years)			4 years
Stock-option expense			$ 147	$ 361
Restricted Stock [Member]
Share-based Compensation [Abstract]
Share based compensation expense related to employees and trustees			$ 6,900	6,000
Restricted Stock [Member] \| Minimum [Member]
Share-based Compensation [Abstract]
Share based compensation, future vesting period minimum (in years)			3 years
Restricted Stock [Member] \| Maximum [Member]
Share-based Compensation [Abstract]
Share based compensation, future vesting period minimum (in years)			4 years
Restricted Share Units [Member]
Share-based Compensation [Abstract]
Range of settlement date for shares for non-employee trustee from grant date, minimum (in years)			1 year
Restricted Share Units [Member] \| Non-Employee Trustees [Member]
Share-based Compensation [Abstract]
Share based compensation expense related to employees and trustees			$ 570	599
Education Reportable Operating Segment [Member]
Concentrations of Risk [Abstract]
Rental revenue	$ 25,649	$ 22,333	$ 48,034	$ 44,690
Education Reportable Operating Segment [Member] \| Education Property Member
number of properties sold \| properties					2
Share-based Compensation [Abstract]
Mortgage Note Receivable from Property Sale					$ 12,300