INVESTMENTS IN JOINT VENTURES (Balance Sheet) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Assets
Cash and restricted cash	$ 114.9		$ 83.4
Real estate	4,435.6		3,376.3
Loan pool participation	4.0	[1]	137.1	[1]
Other	617.5		222.3
Total assets (3)	5,172.0	[2]	3,819.1	[2]
Liabilities
Debt	2,977.7		2,117.3
Other	140.2		65.8
Total liabilities	3,117.9		2,183.1
Partners’ capital
Kennedy Wilson - investments in joint ventures	724.2		518.9
Other partners	1,325.5		1,005.4
Equity Method Investment Summarized Financial Information, Equity	2,049.7		1,524.3
Kennedy Wilson - investments in loan pool participation	2.2	[1]	60.3	[1]
Other partners	2.2		51.4
Total partners' capital - investments in loan pool participation	4.4		111.7
Total liabilities and partners’ capital	5,172.0		3,819.1
Greater than 20% [Member]
Assets
Cash and restricted cash	74.0	[3]	7.7	[3]
Real estate	1,996.8	[3]	311.1	[3]
Loan pool participation	4.0		137.1	[1],[3]
Other	466.8	[3]	11.6	[3]
Total assets (3)	2,541.6	[2],[3]	467.5	[2],[3]
Liabilities
Debt	1,263.6	[3]	139.8	[3]
Other	75.5	[3]	4.2	[3]
Total liabilities	1,339.1	[3]	144.0	[3]
Partners’ capital
Kennedy Wilson - investments in joint ventures	379.5	[3]	35.2	[3]
Other partners	818.6	[3]	176.6	[3]
Equity Method Investment Summarized Financial Information, Equity	1,198.1	[3]	211.8	[3]
Kennedy Wilson - investments in loan pool participation	2.2	[1],[3]	60.3	[1],[3]
Other partners	2.2	[3]	51.4	[3]
Total partners' capital - investments in loan pool participation	4.4	[3]	111.7	[3]
Total liabilities and partners’ capital	2,541.6	[3]	467.5	[3]
Other [Member]
Assets
Cash and restricted cash	40.9		75.7
Real estate	2,438.8		3,065.2
Loan pool participation		[1]		[1]
Other	150.7		210.7
Total assets (3)	2,630.4	[2]	3,351.6	[2]
Liabilities
Debt	1,714.1		1,977.5
Other	64.7		61.6
Total liabilities	1,778.8		2,039.1
Partners’ capital
Kennedy Wilson - investments in joint ventures	344.7		483.7
Other partners	506.9		828.8
Equity Method Investment Summarized Financial Information, Equity	851.6		1,312.5
Kennedy Wilson - investments in loan pool participation		[1]		[1]
Other partners
Total partners' capital - investments in loan pool participation
Total liabilities and partners’ capital	$ 2,630.4		$ 3,351.6

[1] This loan pool has been included in the investment in joint ventures footnote greater than 20% column as this entity was determined to be a significant investment for purposes of S-X §210.3-09. See further discussion on this loan pool participation in note 6. The other investments in loan pool participation were excluded as they were determined to be not significant investments.

[2] The balance sheets and income statements include all investments in joint ventures as well as an investment in a loan pool participation, which was determined to be significant investments for the purposes of S-X §210.3-09.

[3] Equity in income from the joint venture or income from loan pool participation for the year ended December 31, 2013, 2012 or 2011 exceeds 20% of Kennedy Wilson's income from continuing operations before income taxes for the year ended December 31, 2013, 2012 or 2011. No individual investments in joint ventures or loan pool participation exceeds 20% of the total assets of Kennedy Wilson as of December 31, 2013 or 2012.