Real Estate (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2014	Mar. 31, 2014 Consolidated Rental Properties [Member]	May 02, 2014 Land [Member]	Mar. 31, 2014 Land [Member]
Properties acquired	1	1
Property Units Acquired	430	430
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	$ 148,500	$ 143,000	$ 10,300	$ 5,500

Amount of assets acquired at the acquisition date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472

Name:	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant