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Changes In Accumulated Depreciation (Additional Information) (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Real Estate and Accumulated Depreciation [Line Items] |  |  |
Rental Home Depreciation Expense | $ 10.9 els_RentalHomeDepreciationExpense | $ 6.5 els_RentalHomeDepreciationExpense | $ 5.6 els_RentalHomeDepreciationExpense

X
- Definition Current period depreciation expense on rental homes. + References No definition available. + Details
Name: | els_RentalHomeDepreciationExpense
Namespace Prefix: | els_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | us-gaap_RealEstateAndAccumulatedDepreciationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration