INVESTMENTS IN LOAN POOL PARTICIPATIONS (Schedule of Investment in Loan Pools) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial Unpaid Principal Balance	$ 3,893.1	[1]
Unpaid principal balance	884.7	[2]
Kennedy Wilson initial equity invested	150.0
Investment balance	34.7		95.6
Expected accretion over total estimated collection period	39.3
Accreted to date	29.0
February 2010 [Member] | U.S. Loan Pool 1 [Member] | Western United States [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Kennedy Wilson Ownership	15.00%
Initial Unpaid Principal Balance	342.4	[1]
Unpaid principal balance	8.0	[2]
Kennedy Wilson initial equity invested	11.1
Investment balance	0.9
Expected accretion over total estimated collection period	4.6
Accreted to date	4.6
November 2011 [Member] | UK Loan Pool 1 [Member] | UNITED KINGDOM
Accounts, Notes, Loans and Financing Receivable [Line Items]
Kennedy Wilson Ownership	12.50%
Initial Unpaid Principal Balance	2,111.3	[1]
Unpaid principal balance	44.7	[2]
Kennedy Wilson initial equity invested	61.2
Investment balance
Expected accretion over total estimated collection period	19.3
Accreted to date	18.1
April 2012 [Member] | U.S. Loan Pool 2 [Member] | Western United States [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Kennedy Wilson Ownership	75.00%
Initial Unpaid Principal Balance	43.4	[1]
Unpaid principal balance	5.7	[2]
Kennedy Wilson initial equity invested	30.9
Investment balance	4.6
Expected accretion over total estimated collection period	4.1
Accreted to date	3.8
August 2012 [Member] | Irish Loan Pool 1 [Member] | IRELAND
Accounts, Notes, Loans and Financing Receivable [Line Items]
Kennedy Wilson Ownership	10.00%
Initial Unpaid Principal Balance	477.2	[1]
Unpaid principal balance	367.6	[2]
Kennedy Wilson initial equity invested	7.0
Investment balance	8.3
Expected accretion over total estimated collection period	1.7
Accreted to date	0.5
December 2012 [Member] | UK Loan Pool 2 [Member] | UNITED KINGDOM
Accounts, Notes, Loans and Financing Receivable [Line Items]
Kennedy Wilson Ownership	5.00%
Initial Unpaid Principal Balance	605.0	[1]
Unpaid principal balance	152.1	[2]
Kennedy Wilson initial equity invested	19.3
Investment balance	2.0
Expected accretion over total estimated collection period	1.9
Accreted to date	0.8
April 2013 [Member] | UK Loan Pool 3 [Member] | UNITED KINGDOM
Accounts, Notes, Loans and Financing Receivable [Line Items]
Kennedy Wilson Ownership	10.00%
Initial Unpaid Principal Balance	177.2	[1]
Unpaid principal balance	165.7	[2]
Kennedy Wilson initial equity invested	13.0
Investment balance	10.7
Expected accretion over total estimated collection period	3.2
Accreted to date	0.7
August 2013 [Member] | UK Loan Pool 4 [Member] | UNITED KINGDOM
Accounts, Notes, Loans and Financing Receivable [Line Items]
Kennedy Wilson Ownership	20.00%
Initial Unpaid Principal Balance	136.6	[1]
Unpaid principal balance	140.9	[2]
Kennedy Wilson initial equity invested	7.5
Investment balance	8.2
Expected accretion over total estimated collection period	4.5
Accreted to date	$ 0.5
United Kingdom, Pounds
Accounts, Notes, Loans and Financing Receivable [Line Items]
Foreign Currency Exchange Rate, Translation	0.61
Euro Member Countries, Euro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Foreign Currency Exchange Rate, Translation	0.73

[1] Initial UPB presented at historical exchange rates

[2] Estimated foreign exchange rate is £0.61 = $1 USD and €0.73 = $1 USD.