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Financial Information for Operation Segments (Parenthetical) (Detail) (Home Sales and Rentals Operations segment, USD $) In Millions, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012
Home Sales and Rentals Operations segment |  |
Segment Reporting Information [Line Items] |  |
Site rental income | $ 10.6 | $ 8.1

X
- Definition Site rental income attributable to home rentals that is included in resort base rental income on the consolidated income statement. + References No definition available. + Details
Name: | els_SiteRentalIncome
Namespace Prefix: | els_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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