Summary of Business and Basis for Presentation Development (Details) (USD $)	3 Months Ended			6 Months Ended					12 Months Ended			6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Mar. 19, 2013 agent	Jun. 30, 2014 EPT Concord II, LLC [Member] acre	Dec. 31, 2013 EPT Concord II, LLC [Member] acre	Dec. 31, 2013 Trigger One [Member]	Dec. 31, 2013 Trigger Two [Member]	Dec. 31, 2013 Maximum [Member]	Jun. 30, 2014 Architectural Fees [Member]	Jun. 30, 2014 Non Refundable Fees [Member]	Jun. 30, 2014 Shared Development Expenses [Member]
Real Estate Properties [Line Items]
Area of Real Estate Property							1,500	1,500
Project Development, Future Minimum Payments Due, By Counterparty	$ 300,000,000			$ 300,000,000
Option exercise period end date, extension, period									120 days	60 days	90 days
Estimated Capital Tax Allowable						15,000,000
Estimated Tax Credit Allowable Related To Mortgages						1,100,000
Estimated Real Property Tax Abatement						126,000,000
Number Of Agents						3
Project development expenses	6,270,000	16,000,000	0	7,841,000	0
Project Development Costs Incurred				$ 7,800,000								$ 1,600,000	$ 1,500,000	$ 2,800,000