REAL ESTATE (Schedule of Pro Forma Information) (Details) (2013 Acquisitions [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012
2013 Acquisitions [Member]
Business Acquisition [Line Items]
Pro forma revenues	$ 178,100	$ 111,700
Pro forma equity in joint venture income	1,000	1,400
Pro forma net loss attributable to Kennedy-Wilson Holdings, Inc. common shareholders	$ (13,300)	$ (10,000)
Pro forma net loss per share:
Basic (in dollars per share)	$ (0.19)	$ (0.18)

Business Acquisition, Pro Forma Equity in Joint Venture Income

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- Definition

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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