Unconsolidated Investments (Cash Distributions KW Residential, LLC) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2014	Mar. 31, 2013
Schedule of Equity Method Investments [Line Items]
Operating distributions	$ 8.5
Total	17.3
KW Residential, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Settlement of hedges	0	10.8
Refinancing of property level debt	0	1.0
Operating distributions	0.4	1.7
Total	$ 0.4	$ 13.5

Proceeds from Equity Method Investment, Distributions and Return of Investments on Favorable Hedge Settlement

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- Definition

Proceeds from Equity Method Investment, Distributions and Return of Investments on Refinance of Debt at the Properties

+ References

No definition available.

+ Details

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- Definition

Proceeds from Equity Method Investments, Dividends and Distributions, Operating and Investing

+ References

No definition available.

+ Details

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- Definition

This item represents disclosure of the amount of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporation; these investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 13

-Article 5

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