Organization (Details)	12 Months Ended
Dec. 31, 2013 Home_Site
Organization Textual [Abstract]
Number of manufactured home communities company own and operates	74
Number of developed home sites company own and operates	13,500

Number of manufactured home communities company owns and operates.

No definition available.

Name:	umh_NumberOfManufacturedHomeCommunitiesCompanyOwnAndOperates
Namespace Prefix:	umh_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration