Kennedy-Wilson (KW) 10-K 27 Feb 18 2017 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2017	Feb. 26, 2018	Jun. 30, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	Kennedy-Wilson Holdings, Inc.
Entity Central Index Key	1,408,100
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	Dec. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		151,030,173
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 1,429,475,886

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions		Dec. 31, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents		$ 351.3	$ 885.7
Accounts receivable (including $5.2 and $3.0 of related party)		62.7	44
Loan purchases and originations		84.7	87.7
Real estate and acquired in place lease values (net of accumulated depreciation and amortization of $552.2 and $374.3)		6,443.7	5,814.2
Unconsolidated investments (including $346.1 and $329.4 at fair value)		486.4	555.6
Other assets		296	269.4
Total assets	[1]	7,724.8	7,656.6
Liabilities
Accounts payable		19.5	11.2
Accrued expenses and other liabilities		465.9	412.1
Total liabilities	[1]	6,147.3	5,313.5
Equity
Common Stock, 151,561,284 and 115,740,906 shares issued outstanding as of December 31, 2017 and December 31, 2016		0	0
Additional paid-in capital		1,883.3	1,231.4
Accumulated deficit		(90.6)	(112.2)
Accumulated other comprehensive loss		(427.1)	(71.2)
Total Kennedy-Wilson Holdings, Inc. shareholders’ equity		1,365.6	1,048
Noncontrolling interests		211.9	1,295.1
Total equity		1,577.5	2,343.1
Total liabilities and equity		7,724.8	7,656.6
Unsecured Debt [Member]
Liabilities
KWE unsecured bonds		1,179.4	934.1
Mortgages [Member]
Liabilities
KWE unsecured bonds		3,156.6	2,770.4
Unsecured Bonds [Member]
Liabilities
KWE unsecured bonds		$ 1,325.9	$ 1,185.7
[1]	The assets and liabilities as of December 31, 2017 include $904.4 million (including cash held by consolidated investments of $39.1 million and real estate and acquired in place lease values, net of accumulated depreciation and amortization of $789.1 million) and $510.0 million (including investment debt of $475.3 million), respectively, from consolidated variable interest entities ("VIEs"). The assets and liabilities as of December 31, 2016 include $4.5 billion (including cash held by consolidated investments of $584.2 million and real estate and acquired in place lease values, net of accumulated depreciation and amortization of $3.6 billion) and $2.7 billion (including investment debt of $2.4 billion), respectively, from VIEs. These assets can only be used to settle obligations of the consolidated VIEs, and the liabilities do not have recourse to the Company.

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions		Dec. 31, 2017	Dec. 31, 2016
Assets
Related party accounts receivable		$ 5.2	$ 3
Fair value of unconsolidated investments		346.1	329.4
Accumulated deprecation and amortization		552.2	374.3
Assets	[1]	7,724.8	7,656.6
Real estate and acquired in place lease values, net of accumulated depreciation and amortization		6,443.7	5,814.2
Liabilities
Liabilities	[1]	$ 6,147.3	$ 5,313.5
Stockholders' Equity Attributable to Parent [Abstract]
Common stock, shares issued (in shares)		151,561,284	115,740,906
Common stock, shares outstanding (in shares)		151,561,284	115,740,906
Variable Interest Entity, Primary Beneficiary [Member]
Assets
Assets		$ 904.4	$ 4,500
Cash held by consolidated investments		39.1	584.2
Real estate and acquired in place lease values, net of accumulated depreciation and amortization		789.1	3,600
Liabilities
Liabilities		510	2,700
Variable Interest Entity, Primary Beneficiary [Member] | Investment Debt [Member]
Liabilities
Long-term debt		$ 475.3	$ 2,400
[1]	The assets and liabilities as of December 31, 2017 include $904.4 million (including cash held by consolidated investments of $39.1 million and real estate and acquired in place lease values, net of accumulated depreciation and amortization of $789.1 million) and $510.0 million (including investment debt of $475.3 million), respectively, from consolidated variable interest entities ("VIEs"). The assets and liabilities as of December 31, 2016 include $4.5 billion (including cash held by consolidated investments of $584.2 million and real estate and acquired in place lease values, net of accumulated depreciation and amortization of $3.6 billion) and $2.7 billion (including investment debt of $2.4 billion), respectively, from VIEs. These assets can only be used to settle obligations of the consolidated VIEs, and the liabilities do not have recourse to the Company.

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenue
Rental									$ 504.7	$ 485.9	$ 404.8
Hotel									127.5	116.2	106.4
Sale of real estate									111.5	29.3	3.7
Investment management, property services, and research fees (includes $20.8, $28.9, and $37.8 million of related party fees, respectively)									51.7	59.4	69.3
Loan purchases, loan originations, and other									15.2	12.6	19.5
Total revenue	$ 181.5	$ 277.2	$ 177.8	$ 174.2	$ 180.4	$ 174.3	$ 176.5	$ 172.2	810.6	703.4	603.7
Operating expenses
Rental operating									151.2	135.4	108
Hotel operating									100.3	96.3	89.9
Cost of real estate sold									80.2	22.1	2.6
Commission and marketing									7.2	8	7.3
Compensation and related									177.2	186.5	154.8
General and administrative									42.2	45.4	43.8
Depreciation and amortization									212.5	198.2	166.3
Total operating expenses	206	231.2	178.3	155.4	194.3	166.1	168.6	162.9	770.8	691.9	572.7
Income from unconsolidated investments	20.2	12.9	13.4	22.6	67.3	31.7	8.4	19.2	69	126.6	97.4
Operating income	(4.3)	58.9	12.9	41.4	53.4	39.9	16.3	28.5	108.8	138.1	128.4
Non-operating income (expense)
Gain on sale of real estate									226.7	130.7	72.4
Acquisition-related gains									0	16.2	108.1
Acquisition-related expenses									(4.4)	(9.5)	(37.3)
Interest expense									(217.7)	(191.6)	(156.7)
Other income (loss)									8.3	6.6	(2.5)
Income before benefit from (provision for) income taxes	88.2	6.1	30.6	(3)	57.1	18.6	(6.1)	20.9	121.7	90.5	112.4
Benefit from (provision for) income taxes	17.2	3.7	(8.8)	4.2	(11.9)	(5.5)	3.9	(0.5)	16.3	(14)	(53.4)
Net income	105.4	9.8	21.8	1.2	45.2	13.1	(2.2)	20.4	138	76.5	59
Net (income) loss attributable to the noncontrolling interests	(6.2)	(18.7)	(12.4)	(0.2)	(29.6)	(15.1)	1.1	(27.3)	(37.5)	(70.9)	15.7
Preferred dividends and accretion of preferred stock issuance costs	0	0	0	0	(1.2)	(0.5)	(0.5)	(0.6)	0	(2.8)	(3.6)
Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	$ 99.2	$ (8.9)	$ 9.4	$ 1	$ 14.4	$ (2.5)	$ (1.6)	$ (7.5)	$ 100.5	$ 2.8	$ 71.1
Basic Earnings per share
Income per basic (in dollars per share)	$ 0.69	$ (0.08)	$ 0.08	$ 0	$ 0.13	$ (0.03)	$ (0.02)	$ (0.07)	$ 0.83	$ 0.01	$ 0.66
Weighted average shares outstanding for basic (in shares)									119,147,192	109,094,530	103,261,513
Diluted Earnings per share
Income per diluted (in dollars per share)	$ 0.69	$ (0.08)	$ 0.08	$ 0	$ 0.13	$ (0.03)	$ (0.02)	$ (0.07)	$ 0.83	$ 0.01	$ 0.66
Weighted average shares outstanding for diluted (in shares)									119,147,192	109,094,530	109,553,728
Dividends declared per common share (in dollars per share)									$ 0.7	$ 0.56	$ 0.48

Consolidated Statements of Ope5

Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Statement [Abstract]
Related party fees	$ 20.8	$ 28.9	$ 37.8

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 105.4	$ 9.8	$ 21.8	$ 1.2	$ 45.2	$ 13.1	$ (2.2)	$ 20.4	$ 138	$ 76.5	$ 59
Other comprehensive income (loss), net of tax:
Unrealized gain on marketable securities									0.2	0.1	0.1
Unrealized foreign currency translation gain (loss)									155.3	(164.1)	(138.3)
Amounts reclassified out of AOCI during the period									2	3.4	9.7
Unrealized currency derivative contracts (loss) gain									(68.3)	(100.1)	6.3
Total other comprehensive income (loss) for the period									89.2	(260.7)	(122.2)
Comprehensive income (loss)									227.2	(184.2)	(63.2)
Comprehensive (income) loss attributable to noncontrolling interests									(124.2)	166.3	118.4
Comprehensive (loss) income attributable to Kennedy-Wilson Holdings, Inc.									$ 103	$ (17.9)	$ 55.2

Consolidated Statements of Equi

Consolidated Statements of Equity - USD ($) $ in Millions	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Noncontrolling Interests [Member]
Balance, beginning of period, preferred shares (in shares) at Dec. 31, 2014		132,550
Balance at beginning of period at Dec. 31, 2014	$ 3,043.9	$ 0	$ 0	$ 991.3	$ (62)	$ (28.2)	$ 2,142.8
Balance, beginning of period, common shares (in shares) at Dec. 31, 2014			96,091,446
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares, net (in shares)			8,625,000
Issuance of shares, net	215			215
Shares forfeited (in shares)			(57,148)
RSG Grants (in shares)			1,754,750
Shares retired due to RSG Vesting (in shares)			(435,415)
Shares retired due to RSG Vesting	(11.4)			(11.4)
Conversion of preferred stock to common stock (in shares)			8,554,948
Stock-based compensation (in shares)		(100,000)
Stock based compensation	30.8			30.8
Other comprehensive income (loss)
Unrealized foreign currency translation loss, net of tax	(119.5)					(27.5)	(92)
Unrealized foreign currency derivative contract gain (loss), net of tax	(2.7)					8	(10.7)
Unrealized gains on marketable securities	0.1
Preferred stock dividends	(3.6)				(3.6)
Common stock dividends	(53.3)				(53.3)
Net income (loss)	59				74.7		(15.7)
Acquisition of Kennedy Wilson Europe (KWE) shares from noncontrolling interest holders	(68.4)						(68.4)
Contributions from noncontrolling interests, excluding KWE	14.5						14.5
Distributions to noncontrolling interests	(239.2)						(239.2)
Balance, end of period, preferred shares (in shares) at Dec. 31, 2015		32,550
Balance, end of period, common shares (in shares) at Dec. 31, 2015			114,533,581
Balance at end of period at Dec. 31, 2015	2,865.1	$ 0	$ 0	1,225.7	(44.2)	(47.7)	1,731.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares forfeited (in shares)			(31,900)
RSG Grants (in shares)			1,006,750
Shares retired due to RSG Vesting (in shares)			(693,942)
Shares retired due to RSG Vesting	(14.7)			(14.7)
Conversion of preferred stock to common stock (in shares)		(32,550)	3,366,973
Shares retired due to common stock repurchase program (in shares)			(2,440,556)
Shares retired due to common stock repurchase program	(50.1)			(43.2)	(6.9)
Stock based compensation	65.1			65.1
Other comprehensive income (loss)
Unrealized foreign currency translation loss, net of tax	(160.3)					(28.7)	(131.6)
Unrealized foreign currency derivative contract gain (loss), net of tax	(100.5)					5.1	(105.6)
Unrealized gains on marketable securities	0.1					0.1	0
Preferred stock dividends	(2.8)				(2.8)
Common stock dividends	(63.9)				(63.9)
Net income (loss)	76.5				5.6		70.9
Acquisition of Kennedy Wilson Europe (KWE) shares from noncontrolling interest holders	(196.9)						(196.9)
Acquisition of noncontrolling interests from consolidated entity				(1.5)			1.5
Contributions from noncontrolling interests, excluding KWE	42.1						42.1
Distributions to noncontrolling interests	$ (116.6)						(116.6)
Balance, end of period, preferred shares (in shares) at Dec. 31, 2016		0
Balance, end of period, common shares (in shares) at Dec. 31, 2016	115,740,906		115,740,906
Balance at end of period at Dec. 31, 2016	$ 2,343.1	$ 0	$ 0	1,231.4	(112.2)	(71.2)	1,295.1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of ASU 2016-09 adoption	9.3				9.3
Issuance of shares, net (in shares)			37,226,695
Issuance of shares, net	(823.2)			680.7		(358.4)	(1,145.5)
Shares forfeited (in shares)			(57,000)
RSG Grants (in shares)			1,756,750
Shares retired due to RSG Vesting (in shares)			(1,460,251)
Shares retired due to RSG Vesting	(37.9)			(37.9)
Shares retired due to common stock repurchase program (in shares)			(1,645,816)
Shares retired due to common stock repurchase program	(29.9)			(29.1)	(0.8)
Stock based compensation	38.2			38.2
Other comprehensive income (loss)
Unrealized foreign currency translation loss, net of tax	158.4					52	106.4
Unrealized foreign currency derivative contract gain (loss), net of tax	(69.4)					(49.7)	(19.7)
Unrealized gains on marketable securities	0.2					0.2
Common stock dividends	(87.4)				(87.4)
Net income (loss)	138				100.5		37.5
Acquisition of Kennedy Wilson Europe (KWE) shares from noncontrolling interest holders	(3.3)						(3.3)
Contributions from noncontrolling interests, excluding KWE	47.4						47.4
Distributions to noncontrolling interests	$ (106)						(106)
Balance, end of period, preferred shares (in shares) at Dec. 31, 2017		0
Balance, end of period, common shares (in shares) at Dec. 31, 2017	151,561,284		151,561,284
Balance at end of period at Dec. 31, 2017	$ 1,577.5	$ 0	$ 0	$ 1,883.3	$ (90.6)	$ (427.1)	$ 211.9

Consolidated Statement of Equit

Consolidated Statement of Equity (Parenthetical) - shares	Oct. 20, 2017	Dec. 31, 2017	Dec. 31, 2015
Common Stock [Member]
Issuance of common stock (in shares)	37,226,695	37,226,695	8,625,000

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash flows from operating activities:
Net income		$ 138	$ 76.5	$ 59
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Net gain from sale of real estate		(258)	(137.9)	(70.7)
Acquisition-related gains		0	(16.2)	(108.1)
Depreciation and amortization		212.5	198.2	166.3
Above/below and straight line rent amortization		(10.2)	(7.1)	0.6
Provision for deferred income taxes		(24.5)	8.8	24.4
Amortization of deferred loan costs		12.3	12.3	8.2
Amortization of discount and accretion of premium on issuance of the senior notes payable		0.4	(2.1)	(8.6)
Unrealized net (gains) losses on derivatives		11.1	(6.5)	3.4
Income from unconsolidated investments		(69)	(126.6)	(97.2)
Accretion of interest income on loans		(12.1)	(11.7)	(8.9)
Stock compensation expense		38.2	65.1	30.8
Operating distributions from unconsolidated investments		85.7	62.8	78.8
Operating distributions from loans		6.4	32.7	9.7
Change in assets and liabilities:
Accounts receivable		(13.9)	(22.9)	2
Other assets		(14.9)	(10.9)	(14.8)
Accrued expenses and other liabilities		(29)	(11.6)	103.3
Net cash provided by operating activities		73	102.9	178.2
Cash flows from investing activities:
Additions to loans			(16.1)	(235.8)
Collections of loans		16.9	146.9	27.8
Nonrefundable escrow deposits		0	0	(3.8)
Net proceeds from sale of real estate		659.1	540.1	622.6
Purchases of and additions to real estate		(814.3)	(949.6)	(1,927.6)
Investment in marketable securities		(0.8)	(3.2)	(5)
Proceeds from sale of marketable securities		1.1	0	6.2
Investing distributions from unconsolidated investments		133.4	89.6	180
Contributions to unconsolidated investments		(79.9)	(124.9)	(184.3)
Proceeds from settlement of foreign currency derivative contracts		(2.8)	38.6	41.5
Purchases of foreign currency derivative contracts		(0.4)	(8.1)	(5.2)
Additions to development project asset		(19.4)	0	0
Proceeds from development project asset		36.9	0	0
Net cash used in investing activities		(70.2)	(286.7)	(1,483.6)
Cash flow from financing activities:
Borrowings under senior notes payable		0	250	0
Repayment of senior notes payable		(55)	0	0
Costs associated with KWE Transaction		(55.8)	0	0
Borrowings under lines of credit		800	125	95
Repayment of lines of credit		(500)	(125)	(220)
Borrowings under investment debt		848.3	1,189.7	2,087.9
Repayment of investment debt		(684.7)	(608.1)	(681.1)
Debt issue costs		(9.5)	(10.8)	(21.7)
Issuance of common stock		0	0	215
Repurchase of common stock		(67.7)	(64.8)	(11.4)
Cash paid to acquire noncontrolling interest in KWE		(719.8)	0	0
Dividends paid		(59.2)	(64.8)	(51.8)
Acquisition of noncontrolling interests		(3.3)	(196.9)	(68.4)
Contributions from noncontrolling interests		47.4	42.1	14.5
Distributions to noncontrolling interests		(106)	(116.6)	(239.2)
Net cash (used in) provided by financing activities		(565.3)	419.8	1,118.8
Effect of currency exchange rate changes on cash and cash equivalents		28.1	(81.9)	(19.5)
Net change in cash and cash equivalents		(534.4)	154.1	(206.1)
Cash and cash equivalents, beginning of year		885.7	731.6	937.7
Cash and cash equivalents, end of year		351.3	885.7	731.6
Cash paid for:
Interest	[1]	206.7	170.7	133.5
Income taxes	[2]	$ 16.1	$ 10.7	$ 3
[1]	$38.5 million, $57.8 million, and $38.6 million attributable to noncontrolling interests for the years ended December 31, 2017, 2016, and 2015.
[2]	$12.0 million, $8.5 million, $2.5 million attributable to noncontrolling interests for the years ended December 31, 2017, 2016, and 2015.

Consolidated Statements of Ca10

Consolidated Statements of Cash Flows (Parenthetical) $ in Millions	May 19, 2015$ / sharesshares	Dec. 31, 2017USD ($)shares	Dec. 31, 2016USD ($)shares	Dec. 31, 2015USD ($)notesshares
Interest paid attributable to noncontrolling interest | $		$ 38.5	$ 57.8	$ 38.6
Income taxes paid attributable to noncontrolling interest | $		12	8.5	2.5
Dividends | $		87.4	66.7
Acquisition-related gains | $		$ 0	16.2	$ 108.1
Ireland [Member] | KWE [Member]
Number of notes foreclosed upon | notes				4
Multifamily and Commercial [Member] | Western United States [Member]
Acquisition-related gains | $			$ 16.2	$ 108.1
Kona Village [Member]
Ownership percentage sold of equity method investment			50.00%
Series A Preferred Stock [Member]
Convertible preferred stock, conversion price per share (in dollars per share) | $ / shares	$ 11.69
Common Stock [Member]
Issuance of shares, net (in shares)		37,226,695		8,625,000
Conversion of preferred stock to common stock (in shares)	8,554,948		3,366,973	8,554,948
Shares of stock converted (in shares)	8,554,948
Par value (in dollars per share) | $ / shares	$ 0.0001
Stock conversion price (in dollars per share) | $ / shares	$ 11.69
Preferred Stock [Member]
Conversion of preferred stock to common stock (in shares)			(32,550)
Preferred stock outstanding (in shares)		0	0	32,550
Preferred Stock [Member] | Series A Preferred Stock [Member]
Preferred stock outstanding (in shares)	100,000

ORGANIZATION

ORGANIZATION	12 Months Ended
	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
ORGANIZATION	ORGANIZATION Kennedy-Wilson Holdings, Inc. (“KWH,” NYSE: KW), a Delaware corporation and its wholly owned and consolidated subsidiaries (collectively the "Company" or "Kennedy Wilson"), is a global real estate investment company. We own, operate, and invest in real estate both on our own and through our investment management platform. We focus on multifamily and commercial properties located in the Western U.S., UK, Ireland, Spain, Italy and Japan. To complement our investment business, the Company also provides real estate services primarily to financial services clients.

BASIS OF PRESENTATION AND SUMMA

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES BASIS OF PRESENTATION — The consolidated financial statements include the accounts of Kennedy Wilson and voting interest entities which it controls. All significant intercompany balances and transactions have been eliminated in consolidation. In addition, Kennedy Wilson evaluates its relationships with other entities to identify whether they are variable interest entities ("VIE") as defined by Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Subtopic 810 – Consolidation and to assess whether it is the primary beneficiary of such entities. In determining whether Kennedy Wilson is the primary beneficiary of a VIE, qualitative and quantitative factors are considered, including, but not limited to: the amount and characteristics of Kennedy Wilson's investment; the obligation or likelihood for Kennedy Wilson to provide financial support; Kennedy Wilson's ability to control or significantly influence key decisions for the VIE; and the similarity with and significance to the business activities of Kennedy Wilson. Significant judgments related to these determinations include estimates about the future fair values and performance of real estate held by these VIEs and general market conditions. KWE Acquisition On October 20, 2017, KWH completed its acquisition of all the outstanding shares (other than shares owned by KWH or its subsidiaries or held in treasury) of KWE by way of a court-sanctioned scheme of arrangement under Article 125 of the Companies (Jersey) Law (the “KWE Acquisition”). KWE shareholders received an aggregate consideration in the Transaction of approximately 37,226,695 shares of KWH common stock, par value $0.0001 per share, and approximately £528.6 million ( $697.2 million ) in cash. Of the cash consideration received by KWE shareholders in connection with the Transaction, £288.3 million ( $380.3 million ) was paid by KWH and £240.3 million ( $316.9 million ) was paid by KWE through a special distribution. The KWE Acquisition was accounted for in accordance with ASC 810, Consolidation-Overall-Changes in Parent’s Ownership Interest in a Subsidiary (ASC 810) . Because KWH controls KWE both before and after the Transaction, the change in KWH’s ownership interest in KWE will be accounted for as an equity transaction and no gain or loss will be recognized in KWH’s consolidated statements of operations resulting from the KWE Acquisition. Transaction costs associated with the acquisition will be recorded as a reduction of equity as well. USE OF ESTIMATES — The preparation of the accompanying consolidated financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions about future events. These estimates and the underlying assumptions affect the amounts of assets and liabilities reported, disclosure about contingent assets and liabilities, and reported amounts of revenues and expenses. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic environment, which management believes to be reasonable under the circumstances. Management adjusts such estimates and assumptions when facts and circumstances dictate. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates. Changes in those estimates will be reflected in the financial statements in future periods. REVENUE RECOGNITION — Revenue consists of management and leasing fees (including performance fees), commissions, rental and hotel income, sales of real estate and loan income. Management fees are primarily comprised of investment management, property services, and research fees. Investment management fees are earned from limited partners of funds, co-investments, or separate accounts and are generally based on a fixed percentage of committed capital or net asset value. Property services fees are earned for managing the operations of real estate assets and are generally based on a fixed percentage of the revenues generated from the respective real estate assets. Research fees are earned from consulting arrangements. These fees are recognized as revenue ratably over the period that the respective services are performed. The Company provides investment management and property services on investments it also has an ownership interest in. Fees earned on consolidated properties are eliminated in consolidation and fees on unconsolidated investments are eliminated for the portion that relate to the Company's ownership interest. During the year ended December 31, 2017 , $26.3 million were eliminated in consolidation. KWE was externally managed by one of the Company's wholly-owned subsidiaries (“KWE Manager”) pursuant to an investment management agreement in which capacity Kennedy Wilson was entitled to receive certain management and performance fees. KWE Manager was paid an annual management fee (payable quarterly in arrears) equal to 1% of KWE’s adjusted net asset value (EPRA NAV). The management fee payable to KWE Manager was paid half in cash and half in shares of KWE. KW Manager earned $16.0 million in management fees for the year ended December 31, 2017 which is eliminated in consolidation due to the Company's consolidation of KWE. Performance fees or carried interest are allocated to the general partner, special limited partner or asset manager of Kennedy Wilson's real estate funds and loan pool participations based on the cumulative performance of the fund and loan pools and are subject to preferred return thresholds of the limited partners and participants. At the end of each reporting period, Kennedy Wilson calculates the performance fee that would be due as if the fair value of the underlying investments were realized as of such date, irrespective of whether such amounts have been realized. As the fair value of underlying investments varies between reporting periods, it is necessary to make adjustments to amounts recorded as performance fees to reflect either (a) positive performance resulting in an increase in the performance fee allocated to the general partner or asset manager or (b) negative performance that would cause the amount due to Kennedy Wilson to be less than the amount previously recognized as revenue, resulting in a negative adjustment to performance fees allocated to the general partner or asset manager. Substantially all of the performance fees are recognized in investment management fees in our consolidated statements of operations . Total performances fees recognized to date through December 31, 2017 that may be reversed in future periods if there is negative fund performance totaled $32.9 million . Performance fees recognized during the years ended December 31, 2017 , 2016 , and 2015 were $5.6 million , $13.0 million and $18.0 million and the amounts that have not been received are included in other assets in the accompanying consolidated balance sheet. Commissions primarily consist of acquisition fees, auction and real estate sales commissions, leasing commissions, and consulting fees. Acquisition fees are earned for identifying and closing investments on behalf of investors and are based on a fixed percentage of the acquisition price. Acquisition fees are recognized upon the successful completion of an acquisition after all required services have been performed. In the case of auction and real estate sales commissions, the revenue is generally recognized when escrow closes. In accordance with the guidelines established for Reporting Revenue Gross as a Principal versus Net as an Agent in the ASC Subtopic 605-45, Kennedy Wilson records commission revenues and expenses on a gross basis. Of the criteria listed in the Subtopic 605-45, Kennedy Wilson is the primary obligor in the transaction, does not have inventory risk, performs all or part of the service, has credit risk, and has wide latitude in establishing the price of services rendered and discretion in selection of agents and determination of service specifications. Leasing fees that are payable upon tenant occupancy, payment of rent or other events beyond Kennedy Wilson's control are recognized upon the occurrence of such events. Rental income from operating leases is generally recognized on a straight-line basis over the terms of the leases. Hotel income is earned when rooms are occupied or goods and services have been delivered or rendered. Sales of real estate are recognized when title to the real property passes to the buyer and there is no continuing involvement in the real property. Kennedy Wilson follows the requirements for profit recognition as set forth by the Sale of Real Estate ASC Subtopic 360-20. Interest income from investments in loans acquired at a discount are recognized using the effective interest method. Interest income from investments in loans which Kennedy Wilson originates are recognized at the stated interest rate. When a loan or loans are acquired with deteriorated credit quality primarily for the rewards of collateral ownership, such loans are accounted for as loans until Kennedy Wilson is in possession of the collateral. However, accrual of income is not recorded during the conversion period under ASC Subtopic 310-30-25. Income is recognized to the extent that cash is received from the loan. REAL ESTATE ACQUISITIONS — The purchase price of acquired properties is recorded to land, buildings and building improvements and intangible lease value (value of above-market and below-market leases, acquired in-place lease values, and tenant relationships, if any) based on their respective estimated fair values in accordance with Business Combinations ASC Subtopics 805-10. Acquisition-related costs are expensed as incurred. The valuations of real estate are based on management estimates of the real estate assets using income and market approaches. The indebtedness securing the real estate are valued, in part, based on third party valuations and management estimates also using an income approach. UNCONSOLIDATED INVESTMENTS — Kennedy Wilson has a number of joint venture interests that were formed to acquire, manage, and/or sell real estate and invest in loan pools and discounted loan portfolios. Investments in unconsolidated investments are accounted for under the equity method of accounting as Kennedy Wilson can exercise significant influence, but does not have the ability to control the unconsolidated investment. An investment in an unconsolidated investment is recorded at its initial investment and is increased or decreased by Kennedy Wilson’s share of income or loss, plus additional contributions and less distributions. A decline in the value of an unconsolidated investment that is other than temporary is recognized when evidence indicates that such a decline has occurred in accordance with Equity Method Investments ASC Subtopic 323-10. Profits on the sale of real estate held by unconsolidated investments in which Kennedy Wilson has continuing involvement are deferred until such time that the continuing involvement has been concluded and all the risks and rewards of ownership have passed to the buyer. Profit on sales to unconsolidated investments in which Kennedy Wilson retains an equity ownership interest results in partial sales treatment in accordance with Sale of Real Estate ASC Subtopic 360-20, thus deferring a portion of the gain as a result of Kennedy Wilson’s continuing ownership percentage in the unconsolidated investment. Kennedy Wilson records its investments in certain commingled funds it manages and sponsors ("the Funds") that are investment companies under the Investment Companies ASC Subtopic 946-10, based upon the net assets that would be allocated to its interests in the Funds assuming the Funds were to liquidate their investments at fair value as of the reporting date. Thus, the Funds reflect their investments at fair value, with unrealized gains and losses resulting from changes in fair value reflected in their earnings. Kennedy Wilson has retained the specialized accounting for the Funds pursuant to Retention of Specialized Accounting for Investments in Consolidation ASC Subtopic 323-10 in recording its equity in joint venture income from the Funds. Additionally, Kennedy Wilson elected the fair value option for seventeen investments in unconsolidated investment entities. Due to the nature of these investments, Kennedy Wilson elected to record these investments at fair value in order to report the value in the underlying investments in the results of our current operations. DISTRIBUTIONS FROM UNCONSOLIDATED INVESTMENTS — The Company utilizes the "look-through" approach, distributions are reported under operating cash flow unless the facts and circumstances of a specific distribution clearly indicate that it is a return of capital (e.g., a liquidating dividend or distribution of the proceeds from unconsolidated investments' sale of assets), in which case it is reported as an investing activity. This enables Kennedy Wilson to look to the nature and source of the distribution received and classify it appropriately between operating and investing activities on the statement of cash flows based upon the source. FAIR VALUE MEASUREMENTS — Kennedy Wilson accounts for fair value measurements of financial assets and financial liabilities and for fair value measurements of non-financial items that are recognized or disclosed at fair value in the financial statements on a recurring basis under the provisions of Fair Value Measurements ASC Subtopic 820-10. Subtopic 820-10 defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When estimating fair value in the absence of an orderly transaction between market participants, valuations of real estate are based on management estimates of the real estate assets using income and market approaches. The indebtedness securing the real estate and the investments in debt securities are valued, in part, based on third party valuations and management estimates also using an income approach. FAIR VALUE OF FINANCIAL INSTRUMENTS — The estimated fair value of financial instruments is determined using available market information and appropriate valuation methodologies. Considerable judgment, however, is necessary to interpret market data and develop the related estimates of fair value. Accordingly, the estimates presented herein are not necessarily indicative of the amounts that could be realized upon disposition of the financial instruments. The use of different market assumptions or estimation methodologies may have a material impact on the estimated fair value amounts. NONCONTROLLING INTERESTS — Noncontrolling interests are reported within equity as a separate component of Kennedy Wilson's equity in accordance with Noncontrolling Interests in Consolidated Financial Statements ASC Subtopic 810-10. Revenues, expenses, gains, losses, net income or loss, and other comprehensive income are reported in the consolidated statements of operations at the consolidated amounts and net income and comprehensive income attributable to noncontrolling interests are separately stated. Management fees earned by KWE Manager for managing KWE were eliminated in consolidation however the amount attributable to the noncontrolling interest holders of KWE were recognized through net income (loss) attributable to noncontrolling interest holders. FOREIGN CURRENCIES — The financial statements of subsidiaries located outside the United States are measured using the local currency as the functional currency. The assets and liabilities of these subsidiaries are translated at the rates of exchange at the balance sheet date, and income and expenses are translated at the average monthly rate. The foreign currencies include the Euro and the British pound sterling. Cumulative translation adjustments, to the extent not included in cumulative net income, are included in the consolidated statements of equity and comprehensive income as a component of accumulated other comprehensive income. The Company hedges its investments in foreign subsidiaries with forward and option contracts as discussed below. At December 31, 2017 , approximately 49% of our investment account is invested through our foreign platforms in their local currencies. Investment level debt and operational costs of our platforms are generally incurred in local currencies. Fluctuations in foreign exchanges rates may have a significant impact on the results of our operations. In order to manage the effect of these fluctuations, we generally hedge our book equity exposure to foreign currencies through currency forward contracts and options. We typically hedge 50% - 100% of the book equity exposure to these foreign currencies. DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES — Kennedy Wilson has derivatives to reduce its exposure to foreign currencies. All derivative instruments are recognized as either assets or liabilities in the balance sheet at their respective fair values. For derivatives designated in hedging relationships, changes in fair value of cash flow hedges or net investment hedges are recognized in accumulated other comprehensive income, to the extent the derivative is effective at offsetting the changes in the item being hedged until the hedged item affects earnings. GOODWILL — Goodwill results from the difference between the purchase price and the fair value of net assets acquired based upon the purchase method of accounting for business combinations. In accordance with Accounting for Goodwill ASC Subtopic 350-20, goodwill is reviewed for impairment on an annual basis. The Company performs its annual review of impairment at year end and when a triggering event occurs between annual year end reviews. As a result of the evaluation performed as described above, Kennedy Wilson has determined that there was no impairment of goodwill as of December 31, 2017 , 2016 and 2015 . CASH AND CASH EQUIVALENTS — Cash and cash equivalents consist of cash and all highly liquid investments purchased with maturities of three months or less. Cash and cash equivalents are invested in institutions insured by government agencies. Certain accounts contain balances in excess of the insured limits. Kennedy Wilson's operations and financial position are affected by fluctuations in currency exchange rates between the euro and British pound sterling against the U.S. Dollar. LONG-LIVED ASSETS — Kennedy Wilson reviews its long-lived assets (excluding goodwill) whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable in accordance with Impairment of Long-Lived Assets ASC Subtopic 360-10. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated undiscounted future cash flows, an impairment charge is recognized in the amount by which the carrying amount of the asset exceeds the fair value of the asset. Assets to be disposed of are presented separately in the balance sheet and reported at the lower of the carrying amount or fair value less costs to sell, and are no longer depreciated. The assets and liabilities of the assets to be disposed of are classified as held for sale and would be presented separately in the appropriate asset and liability sections of the balance sheet. ACCOUNTS RECEIVABLE — Accounts receivable are recorded at the contractual amount as determined by the underlying agreements and do not bear interest. An allowance for doubtful accounts is provided when Kennedy Wilson determines there are probable credit losses in Kennedy Wilson’s existing accounts receivable and is determined based on historical experience. Kennedy Wilson reviews its accounts receivable for probable credit losses on a quarterly basis. As of December 31, 2017 , Kennedy Wilson had an immaterial allowance for doubtful accounts and during the years ended December 31, 2017 and 2016 . CONCENTRATION OF CREDIT RISK — Financial instruments that subject Kennedy Wilson to credit risk consist primarily of accounts and notes receivable, cash equivalents and derivative instruments. Credit risk is generally diversified due to the large number of entities composing Kennedy Wilson’s customer base and their geographic dispersion throughout the United States, the United Kingdom, Ireland, Spain, Italy and Japan. Kennedy Wilson performs ongoing credit evaluations of its customers and debtors. EARNINGS PER SHARE — Basic earnings per share is computed based upon the weighted average number of shares of common stock outstanding during the periods presented. Diluted earnings per share is computed based upon the weighted average number of shares of common stock and potentially dilutive securities outstanding during the periods presented. The dilutive impact of potentially dilutive securities including convertible securities, and unvested stock which were outstanding during the period. Unvested stock are calculated by the “treasury stock” method and the convertible securities under the "if converted" method. COMPREHENSIVE (LOSS) INCOME — Comprehensive (loss) income consists of net income (loss) and other comprehensive income (loss). In the accompanying consolidated balance sheets, accumulated other comprehensive income consists of foreign currency translation adjustments and unrealized gains (losses) on available for sale securities and derivative instruments. REPURCHASE OF EQUITY INSTRUMENTS — Upon the decision to retire repurchased equity instruments, Kennedy Wilson records the retirement as a reduction to additional paid in capital for the amount that shares were initially issued at with the excess paid going to retained earnings. SHARE-BASED PAYMENT ARRANGEMENTS — Kennedy Wilson accounts for its share-based payment arrangements under the provisions of Share-Based Payments ASC Subtopic 718-10 . Compensation cost for employee service received in exchange for an award of equity instruments is based on the grant-date fair value of the share-based award that is ultimately settled in equity of Kennedy Wilson. The cost of employee services is recognized over the period during which an employee provides service in exchange for the share-based payment award. Share-based payment arrangements with only services conditions that vest ratably over the requisite service period are recognized on the straight-line basis and performance awards that vest ratably are recognized on a tranche by tranche basis over the performance period. INCOME TAXES — Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. In accordance with Accounting for Uncertainty in Income Taxes ASC Subtopic 740-10, Kennedy Wilson recognizes the effect of income tax positions only if those positions are more likely than not of being sustained. Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. Kennedy Wilson records interest related to unrecognized tax benefits in interest expense and penalties in general and administrative expenses. RECENT ACCOUNTING PRONOUNCEMENTS — ASC Topic 606, Revenue from Contracts with Customers, introduces a new five step model to recognize revenue from customer contracts in an effort to increase consistency and comparability throughout global capital markets and across industries. The model identifies the contract, any separate performance obligations in the contract, determines the transaction price, allocates the transaction price and recognizes revenue when the performance obligations are satisfied. The new standard will apply to Kennedy Wilson’s management and leasing fees (including performance fees), commissions, rental, hotel, and other non-significant sources of revenue effective January 1, 2018. Management has concluded that, with the exception of performance fees, the nature of our revenue streams is such that the requirements are generally satisfied at the time that the fee becomes receivable. Consequently, we do not expect significant changes in the pattern and timing of revenue recognition for these revenue streams. The Company included in its analysis the recognition of performance fees, which are currently estimated under a “most likely amount” methodology that was determined to be an acceptable method under ASC Topic 606. However, the new guidance includes a limitation to the amount of such variable consideration to the extent that it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. Because various conditions may occur subsequent to a given measurement date, this threshold will not likely be met until later in an investment's cycle than under the current guidance. In connection with ASC Topic 606 transition guidance, the Company plans to reflect the cumulative effect through the date of adoption as an adjustment to retained earnings and as such will not impact net income nor will it have a material impact on the Company’s financial position. ASC Subtopic 310-20, Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets ("Subtopic 610-20") will impact how sales of real estate are reported. After review of Subtopic 610-20, management concluded that the new standard will not have a significant impact on the amount, timing or classification of real estate sales in the financial statements or related disclosures. This conclusion is based on the Company's current business mix and general approach to sales of real estate which are generally completed without seller financing or continuing involvement that would indicate that a performance obligation is not met at the time the transaction closes. The Company’s analysis included evaluation of an in-process development project that will be completed later in 2018 and found that while the evaluation is different under Subtopic 610-20, the recognition will require recording the gain on the sale of the land and the development component, as separate performance obligations, under a percentage of completion methodology. However, this conclusion is identical to the manner of reporting the gain on the sale of this real estate under current U.S. GAAP. Consequently, there will be no significant impact upon this sale nor any of the other sales already completed. In February 2015, the FASB issued ASU 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis and was adopted by Kennedy Wilson on January 1, 2016. The new standard makes certain changes to both the variable interest model and the voting model, including changes to (1) the identification of variable interests (fees paid to a decision maker or service provider), (2) the variable interest entity characteristics for a limited partnership or similar entity and (3) the primary beneficiary determination. The adoption of ASU 2015-02 did not result in any changes to the Company's conclusions regarding the consolidation of investments under the new standard. The Company identified several entities, already consolidated under the previous standard but not considered VIEs, which under the new standard, are considered VIEs and will continue to be consolidated. KWE was determined to be a VIE under the new standard as were nine other less significant consolidated investments, all with the same partner and sharing similar legal structures. However, because the Company's analysis concludes that the Company is the primary beneficiary of those entities, they continue to be consolidated. In April 2015, the FASB issued ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs , to reduce the complexity of financial statement presentation pursuant to which debt issuance costs will be presented as a direct deduction from the carrying amount of debt liabilities as opposed to a deferred charge recognized as an asset. ASU 2015-03 is required to be adopted for fiscal years beginning after December 15, 2015. ASU 2015-03 became effective for Kennedy Wilson beginning January 1, 2016. The adoption of this standard did not have a material impact on the consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) , which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e., lessees and lessors). The new standard requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase by the lessee. This classification will determine whether lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease. A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term of greater than 12 months regardless of their classification. Leases with a term of 12 months or less will be accounted for similar to existing guidance for operating leases today. The new standard requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales-type leases, direct financing leases and operating leases. ASU 2016-02 is required to be adopted for fiscal years beginning after December 15, 2018. Because Kennedy Wilson's existing operating lease commitments are not material and the accounting for leases by the lessor is substantially unchanged, the Company does not expect the ASU to have a significant impact on its results of operations or financial position. In March 2016, the FASB issued ASU 2016-07, Simplifying the Transition to the Equity Method of Accounting , which eliminates the requirement for an investor to retroactively apply the equity method when its increase in ownership interest (or degree of influence) in an investee triggers equity method accounting. ASU 2016-07 is effective for all entities in fiscal years beginning after December 15, 2016. The Company does not expect the ASU to have a significant impact on Kennedy Wilson's consolidated financial statements. On March 30, 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting , which is intended to improve the accounting for share-based payment transactions as part of the FASB’s simplification initiative. The ASU changes seven aspects of the accounting for share-based payment award transactions, including: (1) accounting for income taxes; (2) classification of excess tax benefits on the statement of cash flows; (3) forfeitures; (4) minimum statutory tax withholding requirements; (5) classification of employee taxes paid on the statement of cash flows when an employer withholds shares for tax-withholding purposes; (6) practical expedient - expected term (nonpublic only); and (7) intrinsic value (nonpublic only). ASU 2016-09 requires excess tax benefits and deficiencies to be recognized as a component of income tax expense rather than equity. An excess tax benefit (windfall) arises when the value of the share-based award on the vesting date is higher than the fair value on the grant date. A tax deficiency (shortfall) arises when the fair value on vesting date is lower than the fair value on the grant date. In addition, ASU 2016-09 eliminated the requirement for excess tax benefits from share-based compensation to reduce current taxes payable prior to being recognized in the financial statement. The inclusion of excess tax benefits and deficiencies as a component of ou

LOAN PURCHASES AND ORIGINATIONS

LOAN PURCHASES AND ORIGINATIONS	12 Months Ended
	Dec. 31, 2017
Receivables [Abstract]
LOAN PURCHASES AND ORIGINATIONS	LOAN PURCHASES AND ORIGINATIONS Kennedy Wilson's investment in loan purchases and originations was $84.7 million and $87.7 million at December 31, 2017 and December 31, 2016 , respectively. During the year ended December 31, 2017 , Kennedy Wilson collected, in full, approximately $6.4 million on a loan secured by an office property in San Diego, CA. During the year ended December 31, 2017 , KWE sold one loan within a portfolio secured by a hotel in the United Kingdom and received proceeds of $10.5 million . Additionally, KWE received $6.4 million of distributions related to the remaining six loans within the portfolio secured by six hotels throughout the United Kingdom. During the year ended December 31, 2016 , Kennedy Wilson originated a loan secured by a beach-front hotel located in Waimea, Hawaii for $4.5 million . Additionally, a loan of approximately $4.9 million secured by a Class A office building in Burbank, CA was collected in full. During the year ended December 31, 2016 , KWE sold a tranche of five loans secured by five assets in the United Kingdom, which had a carrying value of $138.5 million , and recognized a gain of $6.9 million . Additionally, KWE received $25.4 million of distributions related to its eight loans secured by eight hotels located throughout the United Kingdom. Kona Village During the year ended December 31, 2015, KWH originated a loan to an existing joint venture for $38.7 million . With the loan, the joint venture purchased a note (the "Note") secured by the iconic Kona Village Resort ("Kona Village", or the Project) in Kona, Hawaii for the same $38.7 million . During the year ended December 31, 2016, the Note was converted to into equity interests in the Project. The Note had a carrying value of $46.3 million at the time of conversion. Subsequent to conversion, Kennedy Wilson purchased the equity partners' interests and consolidated the investment. Subsequent to consolidating the investment, Kennedy Wilson sold a 50% equity interest in Kona Village to a strategic partner, resulting in shared control, and, accordingly, the Company accounts for its investment under the equity method as of December 31, 2017 . Kona Village is currently in the re-development stage. Interest Income from Notes Receivable Kennedy Wilson recognized interest income on loans of $15.2 million , $12.6 million , and $19.5 million during the years ended December 31, 2017 , 2016 and 2015 .

REAL ESTATE AND ACQUIRED IN PLA

REAL ESTATE AND ACQUIRED IN PLACE LEASE VALUE	12 Months Ended
	Dec. 31, 2017
Real Estate [Abstract]
REAL ESTATE AND ACQUIRED IN PLACE LEASE VALUE	REAL ESTATE AND ACQUIRED IN PLACE LEASE VALUE The following table summarizes the Company's investment in consolidated real estate properties at December 31, 2017 and 2016 : December 31, (Dollars in millions) 2017 2016 Land $ 1,509.4 $ 1,383.2 Buildings 4,558.0 4,048.7 Building improvements 511.2 373.5 Acquired in-place lease values 417.3 383.1 6,995.9 6,188.5 Less accumulated depreciation and amortization (552.2 ) (374.3 ) Real estate and acquired in place lease values, net of depreciation and amortization $ 6,443.7 $ 5,814.2 Real property, including land, buildings, and building improvements, are included in real estate and are generally stated at cost. Buildings and building improvements are depreciated on the straight-line method over their estimated lives not to exceed 40 years. Acquired in-place lease values are recorded at their estimated fair value and depreciated over their respective weighted-average lease term which was 8.5 years at December 31, 2017 . Depreciation and amortization expense on buildings, building improvements and acquired in-place lease values for the years ended December 31, 2017 , 2016 and 2015 was $198.9 million , $181.6 million and $157.3 million , respectively. Consolidated Acquisitions The purchase of property is recorded to land, buildings, building improvements, and intangible lease value (including the value of above-market and below-market leases, acquired in-place lease values, and tenant relationships, if any) based on their respective estimated fair values. The purchase price generally approximates the fair value of the properties as acquisitions are generally transacted with third-party willing sellers. During the year ended December 31, 2017 , Kennedy Wilson acquired the following consolidated properties: (Dollars in millions) Preliminary Purchase Price Allocation at Acquisition (1) Location Description Land Building Acquired in-place lease values (2) Investment debt NCI KWH Shareholders' Equity Western U.S. Two retail centers, six multifamily and one commercial property $ 99.3 $ 427.9 $ 24.1 $ 312.3 $ 3.8 $ 235.1 Ireland One development project, one office and one multifamily 28.7 58.8 — — 4.9 83.8 $ 128.0 $ 486.7 $ 24.1 $ 312.3 $ 8.7 $ 318.9 (1) Excludes acquisition expenses and net other assets. The purchase price allocations for properties acquired during the year ended December 31, 2017 are based on preliminary measurements of fair value that are subject to change. These allocations represent the Company's current best estimates of fair value and will be finalized within one year. (2) Includes above- and below-market leases in this table. Above- and below-market leases are part of other assets and accrued expenses and other liabilities. During the year ended December 31, 2016 , Kennedy Wilson acquired the following consolidated properties: (Dollars in millions) Preliminary Purchase Price Allocation at Acquisition (1) Location Description Land Building Acquired in place lease values (2) Investment debt NCI (3) KWH Shareholders' Equity Western U.S. Three retail centers, six multifamily and two residential properties (5) $ 124.6 $ 360.2 $ 8.7 $ 295.8 $ 2.0 $ 195.7 United Kingdom Portfolio of 10 office properties and two commercial property (4) 44.0 88.4 18.0 — 118.1 32.3 Ireland Three commercial properties and one development property (4) 25.3 84.9 5.8 — 91.6 24.4 Spain One development project and one supermarket (4) 1.9 17.1 0.3 — 15.3 4.0 $ 195.8 $ 550.6 $ 32.8 $ 295.8 $ 227.0 $ 256.4 (1) Excludes acquisition expenses and net other assets. The purchase price allocations for properties acquired during the year ended December 31, 2017 are based on preliminary measurements of fair value that are subject to change. These allocations represent the Company's current best estimates of fair value. (2) Includes above and below market leases in this table. Above and below market leases are part of other assets and accrued expenses and other liabilities. (3) Noncontrolling interest amounts associated with acquisition. (4) This portfolio of properties was directly acquired by KWE. Kennedy Wilson owned approximately 23.6% of the total issued share capital of KWE as of December 31, 2016. On October 20, 2017, Kennedy Wilson successfully completed its acquisition of KWE. KWE became a wholly-owned subsidiary of Kennedy Wilson. (5) During the year ended December 31, 2016, a property included within this group was accounted for under the equity method. Kennedy Wilson purchased the equity partner interest and consolidated the property resulting in an acquisition-related gain of $8.6 million . Additionally, Kennedy Wilson purchased equity partners' interests and consolidated a development project in Kona, HI that was previously accounted for as an equity method investment resulting in an acquisition related gain of $7.6 million . Subsequently, Kennedy Wilson sold an equity interest in the development project, resulting in shared control, and, accordingly, the Company accounts for its investment under the equity method. Consolidation of previously unconsolidated investments There were no such transactions during the year ended December 31, 2017. During the years ended December 31, 2016 and 2015, the Company purchased equity partner interests in joint ventures previously accounted for on an equity method basis, resulting in the Company gaining control of the investments and consolidation treatment pursuant to ASC 810 Consolidation . As a result of gaining control, the assets and liabilities of these properties were consolidated in Kennedy Wilson's financial statements at fair value in accordance with FASB ASC Topic 805 Business Combinations . As the fair value of the property was in excess of the carrying value of its ownership interest, an acquisition-related gain was recorded in the accompanying consolidated statement of operations for the years ended December 31, 2016 and 2015. See Note 6 - Fair Value Measurements for further detail of the methodology used to determine the fair value of the assets and liabilities acquired in these transactions. Consolidations - 2016 The following table summarizes the assets and liabilities assumed as a result of gaining control of these properties and the acquisition-related gains recognized: (Dollars in millions) Property Type Location Cash Real estate and acquired in-place lease values Accounts receivable and other assets Accounts payable, accrued expenses, and other liabilities Investment debt Noncontrolling interests Acquisition related gain Development project in Hawaii Hotel Western US $ — $ 76.3 $ 5.9 $ 1.0 $ — $ — $ 7.6 One retail center Commercial Western US 0.8 46.5 — 0.4 29.0 1.8 8.6 $ 0.8 $ 122.8 $ 5.9 $ 1.4 $ 29.0 $ 1.8 $ 16.2 During the year ended December 31, 2016 Kennedy Wilson purchased equity partners' interests in a development project in Kona, HI that was previously accounted for as an equity method investment resulting in acquisition related gains of $7.6 million . Subsequent to consolidating the investment, Kennedy Wilson sold a 50% equity interest in Kona Village to a strategic partner resulting in shared control, and, accordingly, the Company accounts for its investment under the equity method as of December 31, 2017. Kona Village is currently in the re-development stage. Consolidations - 2015 The following table summarizes the assets and liabilities assumed as a result of gaining control of these properties and the acquisition-related gains recognized: (Dollars in millions) Property Type Location Cash Real estate and acquired in-place lease values Accounts receivable and other assets Accounts payable, accrued expenses, and other liabilities Investment debt Noncontrolling interests Acquisition related gain (1) 1,468 units across multiple properties Multifamily Western US $ 2.9 $ 283.6 $ 0.8 $ 3.9 $ 166.0 $ 0.5 $ 46.5 490K sq. ft. across multiple properties Commercial Western US 7.8 234.7 2.5 6.0 97.9 5.0 37.9 $ 10.7 $ 518.3 $ 3.3 $ 9.9 $ 263.9 $ 5.5 $ 84.4 (1) $2.3 million was allocated to noncontrolling interest for the portion the acquisition related gain that relates to our equity partners ownership in the properties. During 2015, Kennedy Wilson bought out equity interests from equity partners in a number of joint ventures with investments based in Western United States where it acquired control of the underlying properties and consolidated real estate at fair value. Loans converted to real estate During 2015, KWE foreclosed on three office buildings in Ireland that were held in two different loans and took control of a multifamily building outside of London. As a result of the foreclosures and taking title to the properties, the assets and liabilities of the retail center and hotel were consolidated in Kennedy Wilson's financial statements at fair value under ASC Topic 805 - Business Combinations and the vacant lot was consolidated in Kennedy Wilson's financial statements at fair market value . As the fair value of the assets was in excess of the basis in the previously held mortgage notes, Kennedy Wilson recognized a $15.9 million gain on the three office buildings in Ireland and the multifamily building outside of London during 2015. Gains on Real Estate During the years ended December 31, 2017, 2016 and 2015, Kennedy Wilson recognized the following gains on sale of real estate. (Dollars in millions) Gain on sale of real estate Year ended December 31, Description Consolidated (1) NCI Net of NCI 2017 Three multifamily properties and one retail center in the Western U.S., one commercial development and three commercial properties in Ireland, one residential property in the United Kingdom, 25 commercial properties across the United Kingdom and Ireland, two condo unit sales in Spain and a residential property in Spain $ 258.0 $ 43.3 $ 214.7 2016 One commercial property in Japan, one commercial property, one development project, one condo unit, a vacant lot and a parcel of land in the Western U.S. and 44 commercial properties across the United Kingdom and Ireland 137.9 82.6 55.3 2015 Japanese multifamily portfolio, one retail pad and one condo unit in the Western U.S. 73.5 43.0 30.5 (1) Includes both the sale of real estate as a business, which is recognized through gain on sale of real estate, and the sale of real estate as assets, which is the net of sale of real estate and cost of real estate sold. Guarantees Kennedy Wilson has certain guarantees associated with loans secured by consolidated assets. As of December 31, 2017 , the maximum potential amount of future payments (undiscounted) Kennedy Wilson could be required to make under the guarantees was approximately $69.4 million , which is approximately 1% of investment level debt of Kennedy Wilson and its equity partners. The guarantees expire through 2027, and Kennedy Wilson’s performance under the guarantees would be required to the extent there is a shortfall upon liquidation between the principal amount of the loan and the net sale proceeds from the property. Based on the Company's evaluation of guarantees under FASB ASC Subtopic 460-10 Estimated Fair Value of Guarantees, the estimated fair value of guarantees made as of December 31, 2017 and December 31, 2016 were immaterial. Pro Forma Results of Operations The results of operations of the assets acquired have been included in our consolidated financial statements since the date of the acquisitions. The Company’s unaudited pro forma results have been prepared for comparative purposes only and do not purport to be indicative of the results of operations that would have occurred had these acquisition been consummated at the beginning of the periods presented. The unaudited pro forma data presented below assumes that the acquisitions during the year ended December 31, 2017 occurred as of January 1, 2016 . Unaudited Year Ended December 31, (Dollars in millions, except for per share data) 2017 2016 Pro forma revenues $ 835.0 $ 740.2 Pro forma net income 150.1 99.5 Pro forma net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders 111.9 24.8 Pro forma net income per share: Basic $ 0.94 $ 0.23 Diluted $ 0.94 $ 0.23

UNCONSOLIDATED INVESTMENTS

UNCONSOLIDATED INVESTMENTS	12 Months Ended
	Dec. 31, 2017
Equity Method Investments and Joint Ventures [Abstract]
UNCONSOLIDATED INVESTMENTS	UNCONSOLIDATED INVESTMENTS Kennedy Wilson has a number of joint venture interests, generally ranging from 5% to 50% , that were formed to acquire, manage, develop, service and/or sell real estate and invest in loan pools and discounted loan portfolios. Kennedy Wilson has significant influence over these entities, but not control, and accordingly, these investments are accounted for under the equity method. Joint Venture Holdings The following table details Kennedy Wilson's investments in joint ventures by investment type and geographic location as of December 31, 2017 : (Dollars in millions) Multifamily Commercial Funds Residential and Other Total Western U.S. $ 199.7 $ 39.4 $ 55.1 $ 179.8 $ 474.0 United Kingdom — 9.9 — — 9.9 Spain — — — — — Japan 2.5 — — — 2.5 Total $ 202.2 $ 49.3 $ 55.1 $ 179.8 $ 486.4 The following table details our investments in joint ventures by investment type and geographic location as of December 31, 2016 : (Dollars in millions) Multifamily Commercial Funds Residential and Other Total Western U.S. $ 168.6 $ 51.6 $ 47.0 $ 252.6 $ 519.8 United Kingdom — 13.8 — — 13.8 Spain — — — 15.9 15.9 Japan 6.1 — — — 6.1 Total $ 174.7 $ 65.4 $ 47.0 $ 268.5 $ 555.6 During the year ended December 31, 2017 , multifamily investments increased due to investments in five new multifamily properties in the Western United States, which was partially offset by the sale of 51 properties ( 49 of which were in the 5% interest we hold in a Japanese portfolio) in the Western United States and Japan. Commercial investments decreased due to the sale of two office properties in the Western United States and equity losses from unconsolidated investments in the United Kingdom. Fund investments increased due to contributions to Fund V, which were partially offset by distributions from asset sales by Funds IV and V. Residential and Other investments decreased due to the sales of a servicing platform in Spain, a residential development project, four vacant lots and a residential home. Vintage Housing Holdings ("VHH") During the second quarter of 2015, the Company purchased a noncontrolling interest for $78.7 million in VHH and elected the fair value option ("FV Option"), an existing venture that holds controlling interests in over 30 syndicated limited partnerships ("LPs") that own multifamily properties via a traditional low-income housing tax credit ("LIHTC") structure in the Western United States. The remaining interest is held by one non-affiliated entity who is appointed as the manager. Neither party controls VHH, and, accordingly, the Company accounts for its investment under the equity method using the fair value option. As of December 31, 2017 and 2016, the carrying value in VHH was $114.8 million and $84.2 million , respectively. The LPs generate cash flow through their controlling interests in entities owning multifamily housing that is predominantly structured with LIHTCs. As mentioned, the Company has elected the fair value option on its unconsolidated investment in VHH. For the years ended December 31, 2017 , 2016 , and 2015 the Company recognized a total of $19.4 million , $24.3 million , and $14.0 million fair value gains through equity income, respectively. The fair value gains were primarily generated from acquisitions and dilution from resyndications in which VHH dissolves an existing partnership and recapitalizes into a new partnership with tax-exempt bonds and tax credits which are sold to a new tax credit LP partner and, in many cases, yields cash back to VHH. Upon resyndication, VHH retains a GP interest in the partnership and receives various future streams of cashflows including; development fees, asset management fees, other GP management fees and distributions from operations . Since the investment is accounted for under the fair value option, operating distributions are recorded as equity income. See Note 6 for additional details. The Company has recognized $6.7 million in equity income related to operating distributions during the year. Income from Unconsolidated Investments The following table presents income from unconsolidated investments recognized by Kennedy Wilson during the years ended December 31, 2017 , 2016 and 2015: Year Ended December 31, (Dollars in millions) 2017 2016 2015 Equity in joint venture income $ 30.4 $ 70.5 $ 58.2 Equity in joint venture income - fair value 38.6 56.6 34.9 Interest (loss) income recognized (1) — (0.5 ) 4.3 $ 69.0 $ 126.6 $ 97.4 (1) Related to loan pools, all of which were fully resolved as of December 31, 2017 . The Company recognized realized gains on sales of joint venture investments mainly on multifamily and office properties located in the Western United States during the year. The Company sold 51 multifamily ( 49 of which were in the 5% interest we hold in a Japanese portfolio), two office properties, a residential development project, four lots, and a residential home during 2017, resulting in a gain of $14.0 million . The remaining $16.3 million in income from unconsolidated investments is related to operating performance. In addition to the above, the Company recognized fair value gains during the year related to acquisitions and dilution from resyndications in VHH, sales in a condo project, and improved property performance by FV Option investments and investments held within our Funds totaling $38.6 million . The decrease in income from unconsolidated investments during 2017 compared to 2016 and 2015 is primarily related to prior period asset sales. Income from unconsolidated investments during 2016 relates to realized gains on sales of joint venture investments mainly multifamily properties located in the Western United States during the year. In addition to the sales, equity in joint venture income during 2016 relates primarily to fair value gains during the year relating to dilution from resyndications in VHH, sales in a condo project, and improved property performance by investments held within our Funds totaling $56.6 million . Income from unconsolidated investments during 2015 primarily relates to realized gains on sales of joint venture investments mainly multifamily properties located in the Western United States during the year. In addition to the sales, income from unconsolidated investments during 2015 relates primarily to fair value gains during the year relating to dilution from resyndications in VHH, entitlements achieved on development projects, and commencing the sales process on a for sale condo project as well as improved property performance by investments held within our Funds totaling $34.9 million . Consolidation Considerations The Company determines the appropriate accounting method with respect to all investments that are not VIEs based on the control-based framework (controlled entities are consolidated) provided by the consolidations guidance in FASB ASC Topic 810. The Company accounts for joint ventures where it is deemed that the Company does not have control through the equity method of accounting while entities the Company controls are consolidated in Kennedy Wilson's financial statements. Changes in Control There was no such activity in 2017. During 2016, Kennedy Wilson bought out equity interests from equity partners in two joint ventures which consisted of a 216,000 square foot retail building in Orem, Utah and a development project in Kona, Hawaii. Subsequently, Kennedy Wilson sold a 50% equity interest in the development project in Kona, Hawaii, resulting in shared control, and, accordingly, the Company accounts for its investment under the equity method. During 2015, Kennedy Wilson bought out equity interests from equity partners in a number of joint ventures based in Western United States which consisted of 1,468 units across multiple multifamily properties and 490,000 square feet across multiple commercial properties. See Note 4 for more discussion on the impact of consolidation. All of the above investments were accounted for and are presented as unconsolidated investments in the prior periods. Contributions to Joint Ventures During the years ended December 31, 2017 , 2016 and 2015, Kennedy Wilson made $79.9 million , $124.9 million , and $184.3 million , respectively, in contributions to new and existing joint venture investments. See the table below for a breakdown of contributions to new joint venture investments for the years ended December 31, 2017 , 2016 and 2015: Years Ended December 31, ( Dollars in millions ) 2017 2016 2015 Investment Type Region No. of Properties Initial Contribution No. of Properties Initial Contribution No. of Properties Initial Contribution Multifamily Western U.S. 5 $ 13.9 1 $ 19.9 31 $ 80.5 Commercial Western U.S. — — 1 13.4 1 9.1 Residential Western U.S. — — 1 1.0 4 1.4 Residential Japan — — — — 50 6.2 Other Western U.S. 2 1.8 1 2.1 1 2.0 Total 7 $ 15.7 4 $ 36.4 87 $ 99.2 In addition to the capital contributions above to new joint venture investments, the Company contributed $64.2 million , $88.5 million and $85.1 million to existing joint ventures to pay off external debt, fund our share of a development project and for working capital needs, during the years ended December 31, 2017 , 2016 and 2015, respectively. Distributions from Joint Ventures The following table details cash distributions by investment type and geographic location for the year ended December 31, 2017 : Multifamily Commercial Funds Residential and Other Total (Dollars in millions) Operating Investing Operating Investing Operating Investing Operating Investing Operating Investing Western U.S. $ 26.1 $ 26.1 $ 6.5 $ 15.3 $ 4.0 $ 5.7 $ 42.6 $ 64.1 $ 79.2 $ 111.2 United Kingdom — — 2.3 — — — — — 2.3 — Spain — — — — — — 4.0 17.3 4.0 17.3 Japan 0.2 4.9 — — — — — — 0.2 4.9 Total $ 26.3 $ 31.0 $ 8.8 $ 15.3 $ 4.0 $ 5.7 $ 46.6 $ 81.4 $ 85.7 $ 133.4 Investing distributions resulted from the sales of multifamily properties in the Western United States and Japan, commercial properties in the Western United States, a servicing platform in Spain, and homes in residential development projects in the Western United States, and the refinancing of property level debt. Operating distributions resulted from operating cash flow generated by the joint venture investments. Capital Commitments As of December 31, 2017 , Kennedy Wilson had unfulfilled capital commitments totaling $63.6 million to four of its joint ventures under the respective operating agreements. The Company may be called upon to contribute additional capital to joint ventures in satisfaction of such capital commitment obligations.

FAIR VALUE MEASUREMENTS AND THE

FAIR VALUE MEASUREMENTS AND THE FAIR VALUE OPTION	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS AND THE FAIR VALUE OPTION	FAIR VALUE MEASUREMENTS AND THE FAIR VALUE OPTION The following table presents fair value measurements (including items that are required to be measured at fair value and items for which the fair value option has been elected) as of December 31, 2017 : (Dollars in millions) Level 1 Level 2 Level 3 Total Unconsolidated investments $ — $ — $ 346.1 $ 346.1 Marketable securities 7.5 — — 7.5 Net currency derivative contracts — (100.9 ) — (100.9 ) Total $ 7.5 $ (100.9 ) $ 346.1 $ 252.7 The following table presents fair value measurements (including items that are required to be measured at fair value and items for which the fair value option has been elected) as of December 31, 2016 : (Dollars in millions) Level 1 Level 2 Level 3 Total Unconsolidated investments $ — $ — $ 329.4 $ 329.4 Marketable securities 7.5 — — 7.5 Net currency derivative contracts — (47.2 ) — (47.2 ) Total $ 7.5 $ (47.2 ) $ 329.4 $ 289.7 Unconsolidated Investments Kennedy Wilson elected to use the fair value option ("FV Option") for 17 unconsolidated investments to more accurately reflect the timing of the value in the underlying investments and report those changes in current operations. Kennedy Wilson's investment balance in the FV Option investments was $291.0 million and $282.4 million at December 31, 2017 and 2016 , respectively, which are included in unconsolidated investments in the accompanying balance sheets. Additionally, Kennedy Wilson records its investments in KW Property Fund III, L.P. ("Fund III"), Kennedy Wilson Real Estate Fund IV, and Kennedy Wilson Real Estate Fund V, LP (collectively, the "Funds") based upon the net assets that would be allocated to its interests in the Funds assuming the Funds were to liquidate their investments at fair value as of the reporting date. Fund III sold its final investments and made its final distribution during the year ended December 31, 2017 . The Company’s investment balance in the Funds was $55.1 million and $47.0 million at December 31, 2017 and 2016 , respectively, which is included in unconsolidated investments in the accompanying consolidated balance sheets. As of December 31, 2017 , the Company had unfunded capital commitments to the Funds in the amount of $9.0 million under the respective operating agreements. In estimating fair value of real estate held by the Funds and the 17 FV Option investments, the Company considers significant unobservable inputs such as capitalization and discount rates. The following table summarizes the Company's investments in unconsolidated investments held at fair value by type: (Dollars in millions) December 31, 2017 December 31, 2016 FV Option $ 291.0 $ 282.4 Funds 55.1 47.0 Total $ 346.1 $ 329.4 The following table presents changes in Level 3 investments, investments in investment companies and investments in joint ventures that elected the fair value option, for the years ended December 31: (Dollars in millions) 2017 2016 2015 Beginning balance $ 329.4 $ 223.8 $ 95.2 Unrealized and realized gains 53.2 65.7 42.3 Unrealized and realized losses (1.1 ) — (0.1 ) Contributions 58.1 76.3 128.5 Distributions (117.0 ) (75.3 ) (41.0 ) Other 23.5 38.9 (1.1 ) Ending Balance $ 346.1 $ 329.4 $ 223.8 The change in unrealized and realized gains and losses are included in income from unconsolidated investments in the accompanying consolidated statements of operations . The change in unrealized gains and losses on Level 3 investments during 2017 and 2016 for investments still held as of December 31, 2017 and 2016 were gains of $36.0 million and $49.5 million , respectively. In estimating fair value of real estate held by the Funds, 17 unconsolidated investments that elected the fair value option investments, and the value of the real estate consolidated (as further described in Note 4), the Company considers significant inputs such as capitalization and discount rates. The table below describes the range of inputs used as of December 31, 2017 for real estate assets: Estimated Rates Used For Capitalization Rates Discount Rates Office 4.50% — 7.25% 6.75% — 8.00% Retail 5.75% — 9.50% 7.25% — 11.50% Multifamily 4.75% — 7.75% 8.00% — 9.75% Residential N/A 6.00% — 12.00% Hotel 6.50% 10.50% In valuing indebtedness, Kennedy Wilson considers significant inputs such as the term of the debt, value of collateral, market loan-to-value ratios, market interest rates and spreads, and credit quality of investment entities. The credit spreads used by Kennedy Wilson for these types of investments range from 1.55% to 3.46% . The accuracy of estimating fair value for investments utilizing unobservable inputs cannot be determined with precision, cannot be substantiated by comparison to quoted prices in active markets, and may not be realized in a current sale or immediate settlement of the asset or liability. Additionally, there are inherent uncertainties in any fair value measurement technique, and changes in the underlying assumptions used, including cap rates, discount rates, liquidity risks, and estimates of future cash flows, could significantly affect the fair value measurement amounts. Marketable Securities Marketable securities include Kennedy Wilson's investment in publicly traded equity securities and fixed income investments. The fixed income portfolio consists mainly of U.S. government and investment grade corporate bonds. The carrying value of marketable securities is a Level 1 valuation as the fair value is based off of unadjusted quoted market prices in active markets for identical securities. Currency derivative contracts Kennedy Wilson uses foreign currency derivative contracts such as forward contracts and options to manage its foreign currency risk exposure against the effects of a portion of its certain non-U.S. dollar denominated currency net investments. Foreign currency options are valued using a variant of the Black-Scholes model tailored for currency derivatives and the foreign currency forward contracts are valued based on the difference between the contract rate and the forward rate at maturity of the underlying currency applied to the notional value in the underlying currency discounted at a market rate for similar risks. Although the Company has determined that the majority of the inputs used to value its currency derivative contracts fall within Level 2 of the fair value hierarchy, the counterparty risk adjustments associated with the currency derivative contracts utilize Level 3 inputs. However, as of December 31, 2017 , Kennedy Wilson assessed the significance of the impact of the counterparty valuation adjustments on the overall valuation of its derivative positions and determined that the counterparty valuation adjustments are not significant to the overall valuation of its derivative. As a result, we have determined that our derivative valuation in its entirety be classified in Level 2 of the fair value hierarchy. Changes in fair value are recorded in other comprehensive income in the accompanying consolidated statements of comprehensive income (loss) as the portion of the currency forward and option contracts used to hedge currency exposure of its certain consolidated subsidiaries qualifies as a net investment hedge under FASB ASC Topic 815. The fair value of the derivative instruments held as of December 31, 2017 are reported in other assets for hedge assets and included in accrued expenses and other liabilities for hedge liabilities on the accompanying consolidated balance sheet. See Note 13 for a complete discussion on other comprehensive income including currency forward and option contracts and foreign currency translations. The table below details the currency forward contracts and currency option contracts Kennedy Wilson had as of December 31, 2017 : (Dollars in millions) December 31, 2017 Year Ended December 31, 2017 Currency Hedged Underlying Currency Notional Hedge Asset Hedge Liability Change in Unrealized Gains (Losses) Realized Gains (Losses) Cash Received (Paid) Outstanding EUR USD € 130.0 $ 0.3 $ (7.1 ) $ (10.7 ) $ — $ — EUR (1) GBP € 360.0 — (77.0 ) (17.7 ) — — EUR (1)(2) GBP — — — (22.0 ) — — GBP USD £ 540.7 2.1 (19.2 ) (20.4 ) — (0.4 ) GBP (3) USD — — — — (10.8 ) — Total Outstanding 2.4 (103.3 ) (70.8 ) (10.8 ) (0.4 ) Settled EUR (4) USD — — (1.8 ) 1.8 — Yen USD — — — — (0.1 ) GBP USD — — (5.4 ) 0.2 (2.7 ) Total Settled — — (7.2 ) 2.0 (2.8 ) Total $ 2.4 $ (103.3 ) $ (78.0 ) $ (8.8 ) $ (3.2 ) (1) Hedge is held by KWE on its wholly-owned subsidiaries. (2) Relates to KWE's Euro Medium Term Note. See discussion in Note 8. (3) Relates to derivative arrangements on GBP escrow cash that is held by Kennedy Wilson relating to the KWE Transaction. Hedges were non-designated so changes in value went through statement of operations. Derivative losses are offset by realized foreign currency exchange gains on translation of cash. After the transaction hedges were re-designated as net investment hedges on Kennedy Wilson's investment in KWE and subsequent changes will go through other comprehensive income. Please review results together with foreign currency movements in Note 13. (4) Underlying investment was sold by Kennedy Wilson. Historical amounts within other comprehensive income were reclassified to the statement of operations at time of sale. The gains recognized through other comprehensive income will remain in accumulated other comprehensive income until the underlying investments they were hedging are substantially liquidated by Kennedy Wilson. Fair Value of Financial Instruments The carrying amounts of cash and cash equivalents, accounts receivable including related party receivables, accounts payable, accrued expenses and other liabilities, accrued salaries and benefits, and deferred and accrued income taxes approximate fair value due to their short-term maturities. The carrying value of loans (excluding related party loans as they are presumed not to be an arm’s length transaction) approximates fair value as the terms are similar to loans with similar characteristics available in the market. Debt liabilities are accounted for at face value plus net unamortized debt premiums and any fair value adjustments as part of business combinations. The fair value as of December 31, 2017 and 2016 for mortgages, KW unsecured debt, and KWE unsecured bonds were estimated to be approximately $5.8 billion and $5.0 billion , respectively, based on a comparison of the yield that would be required in a current transaction, taking into consideration the risk of the underlying collateral and the Company's credit risk to the current yield of a similar security, compared to their carrying value of $5.7 billion and $4.9 billion as of December 31, 2017 and 2016 , respectively. The inputs used to value mortgages, KW unsecured debt, and KWE unsecured bonds are based on observable inputs for similar assets and quoted prices in markets that are not active and are therefore determined to be level 2 inputs.

OTHER ASSETS

OTHER ASSETS	12 Months Ended
	Dec. 31, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
OTHER ASSETS	OTHER ASSETS Other assets consist of the following: December 31, (Dollars in millions) 2017 2016 Above-market leases, net of accumulated amortization of $44.3 million and $28.1 million at December 31, 2017 and 2016, respectively $ 63.1 $ 72.4 Development project asset 55.3 — Office furniture and equipment net of accumulated depreciation of $35.8 million and $24.4 million at December 31, 2017 and 2016, respectively 44.3 25.4 Accrued performance fees 32.9 27.3 Straight line rent 24.0 11.7 Goodwill 23.9 23.9 Prepaid expenses 13.3 10.2 Other, net of accumulated amortization of $2.6 million and $2.3 million at December 31, 2017 and 2016, respectively 10.7 10.0 Leasing commissions, net of accumulated amortization of $2.2 million and $1.7 million at December 31, 2017 and 2016, respectively 10.1 7.4 Marketable securities 7.5 7.5 VAT receivable 5.0 23.2 Deposits 3.5 1.8 Hedge assets 2.4 20.2 Deferred tax asset, net — 28.4 Other Assets $ 296.0 $ 269.4 Depreciation and amortization expense related to the above depreciable assets were $13.6 million , $16.6 million , and $9.0 million for the years ended December 31, 2017 , 2016 and 2015 , respectively. Development Project Asset On May 12, 2017, Kennedy Wilson and its equity partners (the “Capital Dock JV”) sold 200 Capital Dock, a 130,000 sq ft. office building under construction in Dublin, Ireland. Concurrent with the transaction, the Capital Dock JV entered into a development agreement with the buyer to complete the construction of 200 Capital Dock. The development agreement provides that upon certain events (including the insolvency of the Capital Dock JV and certain delivery deadlines not being met), the buyer may exercise a right to take over the construction of the project. The transaction has been reported based on ASC Topic 360-20. Because adequate initial investment by the buyer was not collected at June 30, 2017 the transaction was initially recorded under the installment method. The installment method apportioned each cash receipt between cost recovered and profit in the same ratio as total cost and total profit bear to the sales value. During the quarter ended September 30, 2017 additional cash collections from the buyer resulted in the initial investment criteria being met and the full accrual method was applied to the recognition of profit on the land. Because the construction process is not complete but the cost and profit are reasonably estimated, the guidance of Topic 360-20 requires the use of the percentage-of-completion method for the sale of the building going forward. Using the approaches described above, there was $91.6 million of sale of real estate and $64.1 million of cost of real estate sold reported in the consolidated statement of operations related to the sale of 200 Capital Dock during the year ended December 31, 2017 . Consequently the "development project asset" represents the basis which has not yet been relieved under the percentage of completion method. The remaining revenue and cost will be reported under the percentage-of-completion method through completion of construction, which is expected to continue until the third quarter of 2018. In the event that the buyer exercises its right to take over the construction of the project, the Capital Dock JV will receive a reduced amount of proceeds from this transaction.

MORTGAGE DEBT

MORTGAGE DEBT	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
MORTGAGE DEBT	MORTGAGE DEBT The following table details mortgage debt secured by Kennedy Wilson's consolidated properties as of December 31, 2017 and 2016: (Dollars in millions) Carrying amount of investment debt as of December 31, (1) Investment Debt by Product Type Region 2017 2016 Multifamily (1) Western U.S. $ 1,227.5 $ 1,180.8 Commercial (1)(2) United Kingdom 583.2 616.9 Commercial (1)(2) Ireland 505.0 331.5 Commercial Western U.S. 370.6 290.2 Multifamily (1)(2) Ireland 263.2 159.3 Commercial (2) Spain 95.5 84.4 Hotel Ireland 86.4 75.7 Hotel Western U.S. 49.1 49.8 Mortgage debt (excluding loan fees) (1)(2) 3,180.5 2,788.6 Unamortized loan fees (23.9 ) (18.2 ) Total Investment Debt $ 3,156.6 $ 2,770.4 (1) The investment debt payable balances include unamortized debt premiums (discounts). Debt premiums (discounts) represent the difference between the fair value of debt and the principal value of debt assumed in various acquisitions and are amortized into interest expense over the remaining term of the related debt in a manner that approximates the effective interest method. The unamortized loan premium as of December 31, 2017 and 2016 was $2.4 million and $5.0 million , respectively. (2) KWE is a wholly-owned subsidiary as of December 31, 2017 . Kennedy Wilson owned approximately 23.6% of the total issued share capital of KWE as of December 31, 2016. The investment debt had a weighted average interest rate of 3.35% and 3.33% per annum as of December 31, 2017 and 2016 , respectively. As of December 31, 2017 , 74% of Kennedy Wilson's property level debt was fixed rate, 8% was floating rate with interest caps and 18% was floating rate without interest caps, compared to 75% fixed rate, 15% floating rate with interest caps and 10% floating rate without interest caps, as of December 31, 2016 . Mortgage Loan Transactions and Maturities During the year ended December 31, 2017 , nine acquisitions were partially financed with mortgages, nine existing mortgages were refinanced, and one investment acquired supplemental financing. See Note 4 for more detail on the acquisitions and the investment debt associated with them. The aggregate maturities of mortgage loans subsequent to December 31, 2017 are as follows: (Dollars in millions) Aggregate Maturities 2018 $ 67.7 2019 356.6 2020 164.3 2021 159.4 2022 434.9 Thereafter 1,995.2 3,178.1 Debt premium 2.4 Unamortized loan fees (23.9 ) Total Investment Debt $ 3,156.6

KW UNSECURED DEBT (Notes)

KW UNSECURED DEBT (Notes)	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
KW UNSECURED DEBT	KW UNSECURED DEBT The following table details KW unsecured debt as of December 31, 2017 and 2016: December 31, (Dollars in millions) 2017 2016 Credit Facility $ 300.0 $ — Senior Notes (1) 898.1 952.8 KW Unsecured Debt 1,198.1 952.8 Unamortized loan fees (18.7 ) (18.7 ) Total KW Unsecured Debt $ 1,179.4 $ 934.1 (1) The senior notes balances include unamortized debt premiums (discounts). Debt premiums (discounts) represent the difference between the fair value of debt and the principal value of debt assumed in various acquisitions and are amortized into interest expense over the remaining term of the related debt in a manner that approximates the effective interest method. The unamortized loan premium (discount) as of December 31, 2017 and 2016 was $(1.9) million and $(2.2) million , respectively. Borrowings Under Credit Facilities On October 3, 2017, Kennedy-Wilson, Inc. (the “Borrower”), a wholly-owned subsidiary of Kennedy-Wilson Holdings, Inc. (the “Company”), KWH and certain subsidiaries of the Company (the “Subsidiary Guarantors”) entered into an Escrow Agreement with a syndicate of lenders (the “Lenders”), Bank of America, N.A. ("BofA"), as administrative agent and Merrill Lynch, Pierce, Fenner & Smith Incorporated ("Merrill"), JPMorgan Chase Bank, N.A. ("JPM") and U.S. Bank National Association, as joint lead arrangers and joint bookrunners, pursuant to which the parties delivered executed signature pages to a $700 million unsecured revolving credit and term loan facility (the “A&R Facility”), which amended and restated the Borrower’s existing revolving credit facility. The A&R Facility is comprised of a $500 million revolving line of credit and a $200 million term loan facility. Loans under the revolving line of credit bear interest at a rate equal to LIBOR plus between 1.75% and 2.75% , depending on the consolidated leverage ratio as of the applicable measurement date. Loans under the term loan facility bear interest at a rate equal to LIBOR plus between 1.65% and 2.65% , depending on the consolidated leverage ratio as of the applicable measurement date. The A&R Facility has a maturity date of March 31, 2021. Subject to certain conditions precedent and at the Borrower’s option, the maturity date of the A&R Facility may be extended by one year . At closing, the Company drew the full term loan amount of $200.0 million , borrowed $200.0 million under the A&R Facility's revolving line, and repaid the $350.0 million outstanding on the existing revolving credit facility. On December 10, 2015, the Borrower entered into a $475 million unsecured revolving credit facility (the “KW Revolving Facility”) with a syndicate of lenders including JPMorgan Chase Bank, N.A., Deutsche Bank AG New York Branch, U.S. Bank N.A., East West Bank, Fifth Third Bank, The Governor and Company of the Bank of Ireland, Compass Bank, City National Bank, and Bank of America, N.A., as administrative agent and letter of credit issuer. Loans under the KW Revolving Facility bear interest at a rate equal to LIBOR plus 2.50% or 3.00% , depending on the consolidated leverage ratio as of the applicable measurement date, and have a maturity date of December 10, 2018 . In October 2017, the KW Revolving Facility was amended and restated, which resulted in the A&R Facility. The A&R Facility has certain covenants as defined within its Amended and Restated Credit Agreement, Dated as of October 20, 2017 (the "Credit Agreement") that, among other things, limit the Company and certain of its subsidiaries’ ability to incur additional indebtedness, repurchase capital stock or debt, sell assets or subsidiary stock, create or permit liens on assets, engage in transactions with affiliates, enter into sale/leaseback transactions, issue subsidiary equity and enter into consolidations or mergers. The Credit Agreement requires the Company to maintain (i) a maximum consolidated leverage ratio (as defined in the Credit Agreement) of not greater than 65% , measured as of the last day of each fiscal quarter, (ii) a minimum fixed charge coverage ratio (as defined in the Credit Agreement) of not less than 1.70 to 1.00 , measured as of the last day of each fiscal quarter for the period of four full fiscal quarters then ended, (iii) a minimum consolidated tangible net worth equal to or greater than the sum of $1,066,775,300 plus an amount equal to fifty percent ( 50% ) of net equity proceeds received by the Company after the date of the most recent financial statements that are available as of the Closing Date, measured as of the last day of each fiscal quarter, (iv) a maximum recourse leverage ratio (as defined in the Credit Agreement) of not greater than an amount equal to consolidated tangible net worth as of the measurement date multiplied by 1.5 , measured as of the last day of each fiscal quarter, (v) a maximum secured recourse leverage ratio (as defined in the Credit Agreement) of not greater than an amount equal to 3.5% of consolidated total asset value (as defined in the Credit Agreement) and $300,351,000 , (vi) a maximum adjusted secured leverage ratio (as defined in the Credit Agreement) of not greater than 55% , measured as of the last day of each fiscal quarter, and (vii) liquidity (as defined in the Credit Agreement) of at least $75.0 million . As of December 31, 2017 , the Company’s consolidated leverage ratio was 63.1% , its fixed charge coverage ratio was 3.1 to 1.00, its consolidated tangible net worth was $1,954.5 million , its adjusted secured leverage ratio was 37.9% , its secured recourse leverage ratio was 0.8% , its recourse leverage ratio was 0.65 , and liquidity was $358.8 million . The obligations of the Borrower pursuant to the Credit Agreement are guaranteed by the Company and certain wholly-owned subsidiaries of the Company. During the year ended December 31, 2017 , the Borrower drew $400.0 million and repaid $100.0 million on the A&R Facility to fund acquisitions. The maximum amount drawn on the A&R Facility at any one point during the year ended December 31, 2017 was $550.0 million . As of December 31, 2017 , the Company had an outstanding balance of $300.0 million on the A&R Facility with $400.0 million available to be drawn under the revolving credit facility. During the year ended December 31, 2017 , the Borrower drew and repaid $400.0 million on the KW Revolving Facility to fund acquisitions. The maximum amount drawn on the KW Revolving Facility at any one point during the year ended December 31, 2017 was $375.0 million . As noted above, the KW Revolving Facility was amended and restated, which resulted in the A&R Facility. The average outstanding borrowings under credit facilities was $285.2 million during the year ended December 31, 2017 . Senior Notes In August 2016, Kennedy Wilson, Inc., (the "Issuer") completed an additional public offering of $250 million aggregate principal amount of 5.875% Senior Notes due 2024 (the "Notes"). The Notes were issued as additional notes under the indenture pursuant to which the Issuer previously issued $650 million aggregate principal amount of its 5.875% Senior Notes due 2024 (the "Initial Notes"). The Notes have substantially identical terms as the Initial Notes and will be treated as a single series with the Initial Notes under the indenture. The Notes were issued and sold at a public offering price of 100.0% of their principal amount, plus accrued interest from, and including, April 1, 2016. In December 2017, the Company redeemed the 2042 Notes bearing an interest rate of 7.75% in full at a redemption price equal to 100% of the principal amount. The indentures governing the Notes contain various restrictive covenants, including, among others, limitations on the Company's ability and the ability of certain of the Company's subsidiaries to incur or guarantee additional indebtedness, make restricted payments, pay dividends or make any other distributions from restricted subsidiaries, redeem or repurchase capital stock, sell assets or subsidiary stocks, engage in transactions with affiliates, create or permit liens on assets, enter into sale/leaseback transactions, and enter into consolidations or mergers. The indentures governing the Notes limit the ability of Kennedy Wilson and its restricted subsidiaries to incur additional indebtedness if, on the date of such incurrence and after giving effect to the new indebtedness, the maximum balance sheet leverage ratio (as defined in the indenture) is greater than 1.50 to 1.00. This ratio is measured at the time of incurrence of additional indebtedness. As of December 31, 2017 , the maximum balance sheet leverage ratio was 0.94 to 1.00. See Note 18 for the guarantor and non-guarantor financial statements. KWE UNSECURED BONDS The following table details KWE unsecured bonds as of December 31, 2017 and 2016: December 31, (Dollars in millions) 2017 2016 KWE Bonds $ 675.6 $ 616.8 KWE Euro Medium Term Note Programme 655.7 575.6 KWE Unsecured Bonds (excluding loan fees) (1)(2) 1,331.3 1,192.4 Unamortized loan fees (5.4 ) (6.7 ) Total KWE Unsecured Bonds $ 1,325.9 $ 1,185.7 (1) The KWE unsecured bonds balances include unamortized debt premiums (discounts). Debt premiums (discounts) represent the difference between the fair value of debt and the principal value of debt assumed in various acquisitions and are amortized into interest expense over the remaining term of the related debt in a manner that approximates the effective interest method. The unamortized loan premium (discount) as of December 31, 2017 and 2016 was $(4.3) million and $(4.1) million , respectively. (2) KWE is a wholly-owned subsidiary as of December 31, 2017 . Kennedy Wilson owned approximately 23.6% of the total issued share capital of KWE as of December 31, 2016. During the second quarter of 2015, KWE completed its inaugural bond offering of approximately $405.3 million (based on December 31, 2017 rates) ( £300 million ) in 3.95% fixed-rate senior unsecured bonds due 2022. During the third quarter of 2016, KWE completed an additional offering of approximately $270.3 million (based on December 31, 2017 rates) ( £200 million ) in 3.95% fixed-rate senior unsecured bonds due 2022. KWE effectively reduced the interest rate to 3.35% as a result of it entering into swap arrangements to convert 50% of the proceeds into Euros. In addition, during the fourth quarter of 2015, KWE established a £2.0 billion (approximately $2.7 billion based on December 31, 2017 rates) Euro Medium Term Note ("EMTN") Programme. Under the EMTN Programme, KWE may issue, from time to time, up to £2.0 billion of various types of debt securities in certain markets and currencies. During the fourth quarter of 2015 and second quarter of 2016, KWE drew down under its EMTN Programme, with the issuances of senior unsecured notes for an aggregate principal amount of approximately $660.3 million (based on December 31, 2017 rates) ( €550 million ) (the "KWE Notes"). The KWE Notes were issued at a discount and have a carrying value of $655.7 million with an annual fixed coupon of 3.25% , and mature in 2025 . As KWE invests proceeds from the KWE Notes to fund equity investments in new euro denominated assets, KWE designates the KWE Notes as net investment hedges under FASB ASC Topic 815. Subsequent fluctuations in foreign currency rates that impact the carrying value of the KWE Notes are recorded to accumulated other comprehensive income. During the year ended December 31, 2017 , Kennedy Wilson recognized a loss of $22.0 million in accumulated other comprehensive income due to the strengthening of the euro against the GBP during the period. The KWE Notes rank pari passu with the KWE Bonds, and are subject to the same restrictive covenants. The trust deed that governs the bonds contain various restrictive covenants for KWE, including, among others, limitations on KWE’s and its material subsidiaries’ ability to provide certain negative pledges. The trust deed limits the ability of KWE and its subsidiaries to incur additional indebtedness if, on the date of such incurrence and after giving effect to the incurrence of the new indebtedness, (1) KWE’s consolidated net indebtedness (as defined in the trust deed) would exceed 60% of KWE’s total assets (as calculated pursuant to the terms of the trust deed); and (2) KWE’s consolidated secured indebtedness (as defined in the trust deed) would exceed 50% of KWE’s total assets (as calculated pursuant to the terms of the trust deed). The trust deed also requires KWE, as of each reporting date, to maintain an interest coverage ratio (as defined in the trust deed) of at least 1.50 to 1.00 and have unencumbered assets of no less than 125% of its unsecured indebtedness (as defined in the trust deed). As of December 31, 2017 , KWE was in compliance with these covenants. KWE had an unsecured floating rate revolving debt facility ("KWE Facility") with Bank of America Merrill Lynch, Deutsche Bank, and J.P. Morgan Chase of approximately $304.0 million (based on December 31, 2017 rates) ( £225 million ). On October 20, 2017, the KWE Facility was terminated in conjunction with the Transaction. Refer to Note 2 for further detail.

KWE UNSECURED BONDS (Notes)

KWE UNSECURED BONDS (Notes)	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
KWE UNSECURED BONDS	KW UNSECURED DEBT The following table details KW unsecured debt as of December 31, 2017 and 2016: December 31, (Dollars in millions) 2017 2016 Credit Facility $ 300.0 $ — Senior Notes (1) 898.1 952.8 KW Unsecured Debt 1,198.1 952.8 Unamortized loan fees (18.7 ) (18.7 ) Total KW Unsecured Debt $ 1,179.4 $ 934.1 (1) The senior notes balances include unamortized debt premiums (discounts). Debt premiums (discounts) represent the difference between the fair value of debt and the principal value of debt assumed in various acquisitions and are amortized into interest expense over the remaining term of the related debt in a manner that approximates the effective interest method. The unamortized loan premium (discount) as of December 31, 2017 and 2016 was $(1.9) million and $(2.2) million , respectively. Borrowings Under Credit Facilities On October 3, 2017, Kennedy-Wilson, Inc. (the “Borrower”), a wholly-owned subsidiary of Kennedy-Wilson Holdings, Inc. (the “Company”), KWH and certain subsidiaries of the Company (the “Subsidiary Guarantors”) entered into an Escrow Agreement with a syndicate of lenders (the “Lenders”), Bank of America, N.A. ("BofA"), as administrative agent and Merrill Lynch, Pierce, Fenner & Smith Incorporated ("Merrill"), JPMorgan Chase Bank, N.A. ("JPM") and U.S. Bank National Association, as joint lead arrangers and joint bookrunners, pursuant to which the parties delivered executed signature pages to a $700 million unsecured revolving credit and term loan facility (the “A&R Facility”), which amended and restated the Borrower’s existing revolving credit facility. The A&R Facility is comprised of a $500 million revolving line of credit and a $200 million term loan facility. Loans under the revolving line of credit bear interest at a rate equal to LIBOR plus between 1.75% and 2.75% , depending on the consolidated leverage ratio as of the applicable measurement date. Loans under the term loan facility bear interest at a rate equal to LIBOR plus between 1.65% and 2.65% , depending on the consolidated leverage ratio as of the applicable measurement date. The A&R Facility has a maturity date of March 31, 2021. Subject to certain conditions precedent and at the Borrower’s option, the maturity date of the A&R Facility may be extended by one year . At closing, the Company drew the full term loan amount of $200.0 million , borrowed $200.0 million under the A&R Facility's revolving line, and repaid the $350.0 million outstanding on the existing revolving credit facility. On December 10, 2015, the Borrower entered into a $475 million unsecured revolving credit facility (the “KW Revolving Facility”) with a syndicate of lenders including JPMorgan Chase Bank, N.A., Deutsche Bank AG New York Branch, U.S. Bank N.A., East West Bank, Fifth Third Bank, The Governor and Company of the Bank of Ireland, Compass Bank, City National Bank, and Bank of America, N.A., as administrative agent and letter of credit issuer. Loans under the KW Revolving Facility bear interest at a rate equal to LIBOR plus 2.50% or 3.00% , depending on the consolidated leverage ratio as of the applicable measurement date, and have a maturity date of December 10, 2018 . In October 2017, the KW Revolving Facility was amended and restated, which resulted in the A&R Facility. The A&R Facility has certain covenants as defined within its Amended and Restated Credit Agreement, Dated as of October 20, 2017 (the "Credit Agreement") that, among other things, limit the Company and certain of its subsidiaries’ ability to incur additional indebtedness, repurchase capital stock or debt, sell assets or subsidiary stock, create or permit liens on assets, engage in transactions with affiliates, enter into sale/leaseback transactions, issue subsidiary equity and enter into consolidations or mergers. The Credit Agreement requires the Company to maintain (i) a maximum consolidated leverage ratio (as defined in the Credit Agreement) of not greater than 65% , measured as of the last day of each fiscal quarter, (ii) a minimum fixed charge coverage ratio (as defined in the Credit Agreement) of not less than 1.70 to 1.00 , measured as of the last day of each fiscal quarter for the period of four full fiscal quarters then ended, (iii) a minimum consolidated tangible net worth equal to or greater than the sum of $1,066,775,300 plus an amount equal to fifty percent ( 50% ) of net equity proceeds received by the Company after the date of the most recent financial statements that are available as of the Closing Date, measured as of the last day of each fiscal quarter, (iv) a maximum recourse leverage ratio (as defined in the Credit Agreement) of not greater than an amount equal to consolidated tangible net worth as of the measurement date multiplied by 1.5 , measured as of the last day of each fiscal quarter, (v) a maximum secured recourse leverage ratio (as defined in the Credit Agreement) of not greater than an amount equal to 3.5% of consolidated total asset value (as defined in the Credit Agreement) and $300,351,000 , (vi) a maximum adjusted secured leverage ratio (as defined in the Credit Agreement) of not greater than 55% , measured as of the last day of each fiscal quarter, and (vii) liquidity (as defined in the Credit Agreement) of at least $75.0 million . As of December 31, 2017 , the Company’s consolidated leverage ratio was 63.1% , its fixed charge coverage ratio was 3.1 to 1.00, its consolidated tangible net worth was $1,954.5 million , its adjusted secured leverage ratio was 37.9% , its secured recourse leverage ratio was 0.8% , its recourse leverage ratio was 0.65 , and liquidity was $358.8 million . The obligations of the Borrower pursuant to the Credit Agreement are guaranteed by the Company and certain wholly-owned subsidiaries of the Company. During the year ended December 31, 2017 , the Borrower drew $400.0 million and repaid $100.0 million on the A&R Facility to fund acquisitions. The maximum amount drawn on the A&R Facility at any one point during the year ended December 31, 2017 was $550.0 million . As of December 31, 2017 , the Company had an outstanding balance of $300.0 million on the A&R Facility with $400.0 million available to be drawn under the revolving credit facility. During the year ended December 31, 2017 , the Borrower drew and repaid $400.0 million on the KW Revolving Facility to fund acquisitions. The maximum amount drawn on the KW Revolving Facility at any one point during the year ended December 31, 2017 was $375.0 million . As noted above, the KW Revolving Facility was amended and restated, which resulted in the A&R Facility. The average outstanding borrowings under credit facilities was $285.2 million during the year ended December 31, 2017 . Senior Notes In August 2016, Kennedy Wilson, Inc., (the "Issuer") completed an additional public offering of $250 million aggregate principal amount of 5.875% Senior Notes due 2024 (the "Notes"). The Notes were issued as additional notes under the indenture pursuant to which the Issuer previously issued $650 million aggregate principal amount of its 5.875% Senior Notes due 2024 (the "Initial Notes"). The Notes have substantially identical terms as the Initial Notes and will be treated as a single series with the Initial Notes under the indenture. The Notes were issued and sold at a public offering price of 100.0% of their principal amount, plus accrued interest from, and including, April 1, 2016. In December 2017, the Company redeemed the 2042 Notes bearing an interest rate of 7.75% in full at a redemption price equal to 100% of the principal amount. The indentures governing the Notes contain various restrictive covenants, including, among others, limitations on the Company's ability and the ability of certain of the Company's subsidiaries to incur or guarantee additional indebtedness, make restricted payments, pay dividends or make any other distributions from restricted subsidiaries, redeem or repurchase capital stock, sell assets or subsidiary stocks, engage in transactions with affiliates, create or permit liens on assets, enter into sale/leaseback transactions, and enter into consolidations or mergers. The indentures governing the Notes limit the ability of Kennedy Wilson and its restricted subsidiaries to incur additional indebtedness if, on the date of such incurrence and after giving effect to the new indebtedness, the maximum balance sheet leverage ratio (as defined in the indenture) is greater than 1.50 to 1.00. This ratio is measured at the time of incurrence of additional indebtedness. As of December 31, 2017 , the maximum balance sheet leverage ratio was 0.94 to 1.00. See Note 18 for the guarantor and non-guarantor financial statements. KWE UNSECURED BONDS The following table details KWE unsecured bonds as of December 31, 2017 and 2016: December 31, (Dollars in millions) 2017 2016 KWE Bonds $ 675.6 $ 616.8 KWE Euro Medium Term Note Programme 655.7 575.6 KWE Unsecured Bonds (excluding loan fees) (1)(2) 1,331.3 1,192.4 Unamortized loan fees (5.4 ) (6.7 ) Total KWE Unsecured Bonds $ 1,325.9 $ 1,185.7 (1) The KWE unsecured bonds balances include unamortized debt premiums (discounts). Debt premiums (discounts) represent the difference between the fair value of debt and the principal value of debt assumed in various acquisitions and are amortized into interest expense over the remaining term of the related debt in a manner that approximates the effective interest method. The unamortized loan premium (discount) as of December 31, 2017 and 2016 was $(4.3) million and $(4.1) million , respectively. (2) KWE is a wholly-owned subsidiary as of December 31, 2017 . Kennedy Wilson owned approximately 23.6% of the total issued share capital of KWE as of December 31, 2016. During the second quarter of 2015, KWE completed its inaugural bond offering of approximately $405.3 million (based on December 31, 2017 rates) ( £300 million ) in 3.95% fixed-rate senior unsecured bonds due 2022. During the third quarter of 2016, KWE completed an additional offering of approximately $270.3 million (based on December 31, 2017 rates) ( £200 million ) in 3.95% fixed-rate senior unsecured bonds due 2022. KWE effectively reduced the interest rate to 3.35% as a result of it entering into swap arrangements to convert 50% of the proceeds into Euros. In addition, during the fourth quarter of 2015, KWE established a £2.0 billion (approximately $2.7 billion based on December 31, 2017 rates) Euro Medium Term Note ("EMTN") Programme. Under the EMTN Programme, KWE may issue, from time to time, up to £2.0 billion of various types of debt securities in certain markets and currencies. During the fourth quarter of 2015 and second quarter of 2016, KWE drew down under its EMTN Programme, with the issuances of senior unsecured notes for an aggregate principal amount of approximately $660.3 million (based on December 31, 2017 rates) ( €550 million ) (the "KWE Notes"). The KWE Notes were issued at a discount and have a carrying value of $655.7 million with an annual fixed coupon of 3.25% , and mature in 2025 . As KWE invests proceeds from the KWE Notes to fund equity investments in new euro denominated assets, KWE designates the KWE Notes as net investment hedges under FASB ASC Topic 815. Subsequent fluctuations in foreign currency rates that impact the carrying value of the KWE Notes are recorded to accumulated other comprehensive income. During the year ended December 31, 2017 , Kennedy Wilson recognized a loss of $22.0 million in accumulated other comprehensive income due to the strengthening of the euro against the GBP during the period. The KWE Notes rank pari passu with the KWE Bonds, and are subject to the same restrictive covenants. The trust deed that governs the bonds contain various restrictive covenants for KWE, including, among others, limitations on KWE’s and its material subsidiaries’ ability to provide certain negative pledges. The trust deed limits the ability of KWE and its subsidiaries to incur additional indebtedness if, on the date of such incurrence and after giving effect to the incurrence of the new indebtedness, (1) KWE’s consolidated net indebtedness (as defined in the trust deed) would exceed 60% of KWE’s total assets (as calculated pursuant to the terms of the trust deed); and (2) KWE’s consolidated secured indebtedness (as defined in the trust deed) would exceed 50% of KWE’s total assets (as calculated pursuant to the terms of the trust deed). The trust deed also requires KWE, as of each reporting date, to maintain an interest coverage ratio (as defined in the trust deed) of at least 1.50 to 1.00 and have unencumbered assets of no less than 125% of its unsecured indebtedness (as defined in the trust deed). As of December 31, 2017 , KWE was in compliance with these covenants. KWE had an unsecured floating rate revolving debt facility ("KWE Facility") with Bank of America Merrill Lynch, Deutsche Bank, and J.P. Morgan Chase of approximately $304.0 million (based on December 31, 2017 rates) ( £225 million ). On October 20, 2017, the KWE Facility was terminated in conjunction with the Transaction. Refer to Note 2 for further detail.

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	12 Months Ended
	Dec. 31, 2017
Related Party Transactions [Abstract]
RELATED PARTY TRANSACTIONS	RELATED PARTY TRANSACTIONS Related party revenue is fees and other income received from investments in which we have an ownership interest, excluding amounts eliminated in consolidation discussed below. Kennedy Wilson earned related party fees of $20.8 million , $28.9 million and $37.8 million for the periods ended December 31, 2017 , 2016 and 2015 , respectively. Included in these related party fees are promote fees on investments the Company also has an ownership interest in. See performance fee discussion in revenue recognition section of Note 2 for more detail. The Company provides management and property services on properties in which it also has an ownership interest. Fees earned on consolidated properties are eliminated in consolidation and fees on unconsolidated investments are eliminated for the portion that relate to the Company's ownership interest. During the years ended December 31, 2017, 2016 and 2015 fees of $26.3 million , $36.9 million and $75.0 million were eliminated in consolidation.

INCOME TAXES

INCOME TAXES	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES The table below represents a geographical breakdown of book income (loss) before the provision for income taxes: Year ended December 31, (Dollars in millions) 2017 2016 2015 Domestic $ 90.6 $ 33.9 $ 61.2 Foreign 31.1 56.6 51.2 Total $ 121.7 $ 90.5 $ 112.4 The U.S. and foreign components of (benefit from) provision for income taxes consisted of the following components. However, it is not reflective of the cash tax results of the Company. Year ended December 31, (Dollars in millions) 2017 2016 2015 Federal Current $ (0.3 ) $ (0.8 ) $ 0.2 Deferred (17.9 ) 17.0 13.2 (18.2 ) 16.2 13.4 State Current 0.1 0.1 — Deferred (3.1 ) 2.8 0.3 (3.0 ) 2.9 0.3 Foreign Current 8.4 5.8 31.9 Deferred (3.5 ) (10.9 ) 7.8 4.9 (5.1 ) 39.7 Total $ (16.3 ) $ 14.0 $ 53.4 A reconciliation of the statutory federal income tax rate of 35% with Kennedy Wilson’s effective income tax rate is as follows: Year ended December 31, (Dollars in millions) 2017 2016 2015 Tax computed at the statutory rate $ 42.6 $ 31.7 $ 39.3 Tax Reform federal rate change (44.8 ) — — Tax deduction in excess of book compensation from restricted stock vesting (3.7 ) — — Foreign permanent differences, primarily non-deductible depreciation, amortization and acquisition-related expenses in the United Kingdom 6.1 6.5 13.7 Sale of KWR, investment basis difference — — 10.6 Effect of foreign tax operations, net of foreign tax credits 1.6 1.1 (3.8 ) Noncontrolling interests (15.0 ) (25.8 ) (2.8 ) Adjustment to investment basis — — 1.4 Non-vested stock expense — — 1.0 State income taxes, net of federal benefit (3.8 ) 2.8 (1.5 ) Other 0.7 (2.3 ) (4.5 ) Provision for (benefit from) income taxes $ (16.3 ) $ 14.0 $ 53.4 Cumulative tax effects of temporary differences are shown below at December 31, 2017 and 2016 : Year ended December 31, (Dollars in millions) 2017 2016 Deferred tax assets: Foreign currency translation $ 11.9 $ 131.9 Net operating loss carryforward and credits 103.7 85.2 Stock option expense 5.2 19.5 Hedging transactions 8.1 — Marketable securities 0.1 0.4 Accrued reserves 0.1 0.1 Total deferred tax assets 129.1 237.1 Valuation allowance (32.7 ) (29.9 ) Net deferred tax assets 96.4 207.2 Deferred tax liabilities: Investment basis, depreciation, amortization and reserve differences 119.8 157.6 Hedging transactions — 5.0 Prepaid expenses and other 9.2 13.9 Capitalized interest 1.4 2.3 Total deferred tax liabilities 130.4 178.8 Deferred tax asset (liability), net $ (34.0 ) $ 28.4 U.S. tax reform legislation, commonly referred to as the Tax Cuts and Jobs Act (the “Tax Bill”), was signed into law on December 22, 2017. The Tax Bill amends a range of U.S. federal tax rules applicable to individuals, businesses and international taxation. These changes include lowering the federal corporate income tax rate from 35% to 21% and imposing a repatriation tax on deemed repatriated earnings of foreign subsidiaries. During the fourth quarter of 2017, the Company we adjusted our net U.S. deferred tax liability down to the new federal tax rate and recorded a $44.8 million tax benefit. Due to the nature of our business operations, a majority of our foreign income is taxed currently in the U.S. For those foreign subsidiaries where there is no current U.S. tax inclusion, we have estimated that no repatriation tax is due as those foreign subsidiaries do not have aggregate positive unrepatriated foreign earnings. While we were able to make a reasonable, provisional estimate of the impact of the reduction in the U.S. corporate tax rate and other provisions that may have a significant impact to the Company, the final impact of the Tax Bill may differ from our estimates due to additional guidance that might be issued by the IRS, Treasury Regulations or state taxing authorities and changes in our assumptions and interpretations. We are continuing to assess the changes from and gather information related to Tax Bill in order to finalize our provisional estimates and to assess the impact of Tax Bill in future periods. As of December 31, 2017 , Kennedy Wilson had federal net operating losses of $146.3 million . These net operating losses begin to expire in the year 2031. As of December 31, 2017 , there were also California net operating loss carryforwards of approximately $146.7 million . The California net operating losses begin to expire in the year 2028. In addition, Kennedy Wilson has $9.1 million of other state net operating losses. As of December 31, 2017 , Kennedy Wilson had $224.8 million of foreign net operating losses carryforwards which have no expiration date. The Company has foreign tax credits of $17.3 million which begin to expire in 2023. The Company's valuation allowance on deferred tax assets increased by $2.8 million in 2017 and decreased by $7.8 million in 2016 . The increase in 2017 principally relates to additional foreign net operating losses that not more-likely-than not to be realized. The decrease in 2016 principally related to a release in our valuation allowance as update forecasts indicated that certain net operating losses in the United Kingdom were more-likely-than-not realizable. There were no gross unrecognized tax benefits at December 31, 2017 and 2016 . Management has considered the likelihood and significance of possible penalties associated with Kennedy Wilson's current and intended filing positions and has determined, based on its assessment, that such penalties, if any, would not be significant. Kennedy Wilson's federal and state income tax returns remain open to examination for the years 2014 through 2016 and 2013 through 2016, respectively. However, due to the existence of prior year loss carryovers, the IRS may examine any tax years for which the carryovers are used to offset future taxable income. Our foreign subsidiaries’ tax returns remain open to examination for the years 2013 through 2016. The Spanish loss carryovers of $49.0 million may be subject to tax examination for a period of 10 years from the period in which such losses were generated.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Future minimum lease payments under scheduled operating leases that have initial or remaining noncancelable terms in excess of one year are as follows: (Dollars in millions) Year ending December 31, 2018 $ 2.8 2019 2.1 2020 1.8 2021 1.4 2022 1.2 Thereafter 0.4 Total minimum payments $ 9.7 Rental expense was $4.3 million , $4.4 million , and $4.4 million for the years ended December 31, 2017 , 2016 and 2015 , respectively, and is included in general and administrative expense in the accompanying consolidated statements of operations . GUARANTEES—Kennedy Wilson has certain guarantees associated with loans secured by consolidated assets. As of December 31, 2017 , the maximum potential amount of future payments (undiscounted) Kennedy Wilson could be required to make under the guarantees was approximately $69.4 million , which is approximately 1% of investment level debt of Kennedy Wilson and its equity partners. The guarantees expire through 2027 and Kennedy Wilson's performance under the guarantees would be required to the extent there is a shortfall in liquidation between the principal amount of the loan and the net sale proceeds of the property. Based on the Company's evaluation of guarantees under FASB ASC Subtopic 460-10 Estimated Fair Value of Guarantees, the estimated fair value of guarantees made as of December 31, 2017 and December 31, 2016 were immaterial. CAPITAL COMMITMENTS—As of December 31, 2017 and 2016 , the Company has unfunded capital commitments of $63.6 million and $24.7 million to its joint ventures under the respective operating agreements. The Company may be called upon to contribute additional capital to joint ventures in satisfaction of the Company's capital commitment obligations. LITIGATION—Kennedy Wilson is currently a defendant in certain routine litigation arising in the ordinary course of business. It is the opinion of management and legal counsel that the outcome of these actions will not have a material effect on the financial statements taken as a whole.

STOCK COMPENSATION PLANS

STOCK COMPENSATION PLANS	12 Months Ended
	Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
STOCK COMPENSATION PLANS	STOCK COMPENSATION PLANS In June 2012, Kennedy Wilson adopted and its shareholders approved the Amended and Restated 2009 Equity Participation Plan (the "Amended and Restated Plan") under which an additional 3.2 million shares of common stock have been reserved for restricted stock grants to officers, employees, non-employee directors and consultants. The terms of the awards granted under the 2009 Amended and Restated Equity Participation Plan were set by the Company's compensation committee at its discretion. During the year ended December 31, 2012, 3.2 million shares of restricted common stock were granted under the Amended and Restated Plan along with 5,000 shares which remained under the original plan. The shares that were granted vest over five years with 40% vesting ratably in the first four years of the award period and the remaining 60% in the fifth year of the award period. Vesting of the restricted share awards is contingent upon the expected achievement of a performance target in each year of the award period with the initial vesting of the first 10% in January 2013. The performance targets were achieved for 2012, 2013, 2014, 2015 and 2016. From inception of the plan through December 31, 2017, 3,015,252 shares have vested and 137,248 shares have been forfeited. The Company re-granted the forfeited shares to certain employees. In July 2014, Kennedy Wilson adopted and its shareholders approved the Amended and Restated 2009 Equity Participation Plan under which an additional 6.0 million shares of common stock have been reserved for restricted stock grants to officers, employees, non-employee directors and consultants. There were no shares granted under the 2009 Amended and Restated Equity Participation Plan during the year ended December 31, 2017. During the year ended December 31, 2016, 2015 and 2014, 1.0 million , 1.7 million and 3.3 million , respectively, of restricted common stock were granted under the 2009 Amended and Restated Equity Participation Plan. The terms of the awards granted under the Amended and Restated Plan were set by the Company's compensation committee at its discretion. The shares will vest ratably over a three , four or five -year year period based on the achievement of certain performance targets. The performance periods will be measured for the awards will be the Company’s fiscal years ending from December 31, 2014 through December 31, 2020. The shares which were granted with a three -year vesting period have a three -year sale restriction period upon vesting. Due to the lack of marketability of these shares with the three -year sale restriction period upon vesting, a 15% discount was applied to the grant price these shares when computing stock compensation expense. From inception of the plan through December 31, 2017 , 3,397,906 shares have vested and 121,300 have been forfeited. As of December 31, 2017 , there was $33.8 million of unrecognized compensation cost for the Amended and Restated Plan related to unvested restricted shares which will vest over the next three years . In June 2017, Kennedy Wilson adopted and its shareholders approved the Second Amended and Restated 2009 Equity Participation Plan under which an additional 14,945,000 shares of common stock have been reserved for restricted stock grants to officers, employees, non-employee directors and consultants. During the year ended December 31, 2017, the Compensation Committee of the Board of Directors approved the total grant of 1.7 million shares of performance-based restricted shares of Company common stock subject to vesting based on the Company’s total shareholder return (the “TSR restricted shares”), performance-based restricted shares of Company common stock subject to vesting based on the Company’s return on equity (the “ROE restricted shares”), and time-based restricted shares of Company common stock (the “time-based restricted shares”) (collectively, the “awards”), under the Company’s Second Amended and Restated 2009 Equity Participation Plan. Up to 100% of the TSR restricted shares will be eligible to vest based on the MSCI Index Relative Performance during the performance period, with the actual number of TSR restricted shares that vest and cease to be subject to restrictions with respect to the performance period determined by multiplying (i) the total number of TSR restricted shares subject to the award by (ii) the applicable vesting percentage. Up to one-third of the total ROE restricted shares will be eligible to vest with respect to each Company fiscal year of the performance period (each, a “performance year”) to the extent that the Company satisfies the return on equity goals for such performance year. One-third of the time-based restricted shares will vest on each of the first three anniversaries of the grant date. Stock-based compensation expense are based on the fair values on the date of grant for the ROE restricted shares and time-based restricted shares. Certain ROE restricted shares and time-based restricted shares were granted with a three -year sale restriction period upon vesting. Due to the lack of marketability of these shares with the three -year sale restriction period upon vesting, a 12.5% discount was applied to the grant price of these shares when computing stock compensation expense. The fair value of the TSR restricted shares are estimated using a Monte Carlo simulation. From inception of the plan through December 31, 2017, no shares have been vested or forfeited. As of December 31, 2017, there was $22.1 million of unrecognized compensation cost for the Second Amended and Restated Plan related to unvested shares which will vest over the next three years . Upon vesting, the restricted stock granted to employees discussed directly above is net share-settled to cover the withholding tax. Shares that vested during the years ended December 31, 2017 , 2016 and 2015 were net-share settled such that the Company withheld shares with value equivalent to the employees’ minimum statutory obligation for the applicable income and other employment taxes, and remitted the cash to the appropriate taxing authorities. The total shares withheld during the years ended December 31, 2017, 2016 and 2015 were 1,460,251 shares, 693,942 shares, and 435,415 shares respectively, and were based on the value of the restricted stock on the respective vesting dates as determined by the Company’s closing stock price. During the years ended December 31, 2017 , 2016 and 2015, total payments for the employees’ tax obligations to the taxing authorities were $37.9 million , $14.7 million , and $11.4 million respectively. These figures are reflected as a financing activity on the accompanying consolidated statements of cash flows. During the years ended December 31, 2017 , 2016 and 2015 , Kennedy Wilson recognized $38.4 million , $65.1 million and $30.8 million of compensation expense related to the vesting of restricted common stock and is included in compensation and related expense in the accompanying consolidated statements of operations . The increase in stock compensation in 2016 is mainly due to $26.5 million or 60% of the expense of the restricted stock that was granted in 2012 under our Amended and Restated 2009 Equity Participation Plan being incurred during April 2016 to March 2017 due to performance criteria being met for this period. A portion of the increase was also attributed to the restricted stock that was granted during the fourth quarter of 2015 and during 2016. The following table sets forth activity under the Equity Plan and Amended and Restated Plan: Shares Nonvested at December 31, 2015 6,274,345 Granted 1,006,750 Vested (1,526,731 ) Forfeited (31,900 ) Nonvested at December 31, 2016 5,722,464 Granted 1,756,750 Vested (3,285,671 ) Forfeited (57,000 ) Nonvested at December 31, 2017 4,136,543 Employee Benefit Arrangements Kennedy Wilson has a qualified plan under the provisions of Section 401(k) of the Internal Revenue Code. Under this plan, participants are able to make salary deferral contributions of up to 75% of their total compensation, up to a specified maximum. The 401(k) plan also includes provisions which authorize Kennedy Wilson to make discretionary contributions. During the years ended December 31, 2017 , 2016 and 2015 , Kennedy Wilson made matching contributions of $0.3 million and $0.3 million , and $0.3 million respectively to this plan and they are included in compensation and related expenses in the accompanying consolidated statements of operations .

EQUITY

EQUITY	12 Months Ended
	Dec. 31, 2017
Equity [Abstract]
EQUITY	EQUITY Common Stock Repurchase Program On February 25, 2016, Kennedy Wilson announced the authorization of a stock repurchase program for up to $100 million . Repurchases under the program may be made in the open market, in privately negotiated transactions or otherwise, with the amount and timing of repurchases depending on market conditions and subject to the Company's discretion. Under the program, Kennedy Wilson has repurchased and retired 4,086,372 shares for $79.9 million . KWE Acquisition On October 20, 2017, the Company completed its acquisition of all of the outstanding shares (other than shares owned by the Company or its subsidiaries or held in treasury) of KWE for $719.8 million in cash and issued 37,226,695 shares of KWH to shareholders of KWE stock. The KWE Acquisition was accounted for in accordance with ASC 810, Consolidation-Overall-Changes in Parent’s Ownership Interest in a Subsidiary (ASC 810) . Because KWH controls KWE both before and after the Transaction, the change in KWH’s ownership interest in KWE was accounted for as an equity transaction and no gain or loss was recognized in KWH’s consolidated statements of operations resulting from the KWE Acquisition. The amount of cash paid and shares issued was greater than carrying value of noncontrolling interest in KWE as of the date of the transaction. The premium paid to the noncontrolling interest holders over their carrying value was recorded additional paid in capital. The Company also was required to record inception to date unrealized foreign currency translation and foreign currency derivative contract losses that had previously been allocated to noncontrolling interest holders accumulated other comprehensive income with a corresponding entry to additional paid in capital which resulted in no net impact to Kennedy Wilson's shareholder's equity. Furthermore, transactions costs associated with the acquisition were recorded as a reduction of additional paid in capital. Preferred Stock During 2010, Kennedy Wilson issued two series of Convertible Cumulative Preferred Stock (together, the "Preferred Stock”) at 1,000 per share, Series A ( 100,000 shares) and Series B ( 32,550 shares), for total proceeds less issuance costs of $99.8 million and $32.5 million . The Series A Preferred Stock converted into 8,554,948 common shares on May 19, 2015 at a price of $11.69 per share. The Series B Preferred Stock converted into 3,366,973 common shares on December 28, 2016 at a price of $9.67 per share at the option of the holder. The Series B Preferred Stock was convertible into common stock at any time at the option of the holder on or after May 3, 2017 (the "Optional Conversion Date") and prior to November 3, 2018 and would have been mandatorily convertible into common stock on November 3, 2018. Due to the early conversion, Kennedy Wilson agreed to pay the holders an aggregate of $0.7 million , which represents dividends that would have accrued on all outstanding Series B preferred stock through the Optional Conversion Date. Dividend Distributions Kennedy Wilson declared and paid the following cash dividends on its common and preferred stock: (Dollars in millions) Year Ended December 31, 2017 Year Ended December 31, 2016 Declared Paid Declared Paid Preferred Stock Series B (1) — — 2.8 2.8 Total Preferred Stock — — 2.8 2.8 Common Stock 87.4 59.2 63.9 62.0 Total (2) $ 87.4 $ 59.2 $ 66.7 $ 64.8 (1) The decrease in Series B dividends during the current year is due to the early conversion of the Series B preferred stock during the fourth quarter of 2016. See discussion above. (2) The difference between declared and paid is the amount accrued on the consolidated balance sheets. Accumulated Other Comprehensive Income The following table summarizes the changes in each component of accumulated other comprehensive income (loss) ("AOCI"), net of taxes: (Dollars in millions) Foreign Currency Translation Foreign Currency Derivative Contracts Marketable Securities Total Accumulated Other Comprehensive Income Balance at December 31, 2016 $ (98.6 ) $ 27.5 $ (0.1 ) $ (71.2 ) Unrealized gains (losses), arising during the period 212.4 (76.2 ) 0.3 136.5 Amounts reclassified out of AOCI during the period 3.1 (1.1 ) — 2.0 Taxes on unrealized (losses) gains, arising during the period (57.1 ) 7.9 (0.1 ) (49.3 ) Noncontrolling interest (106.4 ) 19.7 — (86.7 ) Balance (of Kennedy Wilson's share) at December 31, 2017 $ (46.6 ) $ (22.2 ) $ 0.1 $ (68.7 ) The local currencies for our interests in foreign operations include the euro and the British pound sterling. The related amounts on our balance sheets are translated into U.S. dollars at the exchange rates at the respective financial statement date, while amounts on our statements of operations are translated at the average exchange rates during the respective period. The increase in the unrealized gains on foreign currency translation is a result of the strengthening of the euro and British pound sterling against the U.S. dollar during the year ended December 31, 2017 . In order to manage currency fluctuations, Kennedy Wilson entered into currency derivative contracts to manage its exposure to currency fluctuations between its functional currency (U.S. dollar) and the functional currency (Euro and GBP) of certain of its wholly-owned and consolidated subsidiaries. See note 6 for a more detailed discussion of Kennedy Wilson's currency derivative contracts. As discussed throughout this report, we are required under U.S. GAAP to consolidate certain non-wholly owned subsidiaries or investments that we control. As such, our financial statements reflect currency translation adjustments and related hedging activities on a gross basis. In many instances, these fluctuations are not reflective of the actual foreign currency exposure of the underlying consolidated subsidiary. The impact of this nuance will decrease going forward due to the KWE Transaction. Noncontrolling Interests Noncontrolling interests consist of the ownership interests of noncontrolling shareholders in consolidated subsidiaries, and are presented separately on Kennedy Wilson's balance sheet. As of December 31, 2017 and 2016 the Company has noncontrolling interest of $211.9 million and $1.3 billion , respectively. The decrease in noncontrolling interests during 2017 is due to the KWE Acquisition. Additionally, the balance also decreased due to distributions to noncontrolling interests of $106.0 million . The Company also allocated $37.5 million of income, $86.7 million of other comprehensive losses and received contributions of $47.4 million to noncontrolling interest holders.

EARNINGS PER SHARE

EARNINGS PER SHARE	12 Months Ended
	Dec. 31, 2017
Earnings Per Share [Abstract]
EARNINGS PER SHARE	EARNINGS PER SHARE In accordance with FASB ASC Topic 260-10-45 Earnings Per Share , the Company uses the two-class method to calculate earnings per share. Basic earnings per share is calculated based on dividends declared (“distributed earnings”) and the rights of common shares and participating securities in any undistributed earnings, which represents net income remaining after deduction of dividends declared during the period. Participating securities, which include unvested restricted stock, are included in the computation of earnings per share pursuant to the two-class method. The undistributed earnings are allocated to all outstanding common shares and participating securities based on the relative percentage of each security to the total number of outstanding securities. Basic earnings per common share and participating securities represent the summation of the distributed and undistributed earnings per common share and participating security divided by the total weighted average number of common shares outstanding and the total weighted average number of participating securities outstanding during the respective periods. We only present the earnings per share attributable to the common shareholders. Net losses, after deducting the dividends to participating securities, are allocated in full to the common shares since the participating security holders do not have an obligation to share in the losses, based on the contractual rights and obligations of the participating securities. The following is a summary of the elements used in calculating basic and diluted income (loss) per share for the years ended December 31, 2017 , 2016 and 2015 : The following table sets forth the computation of basic and diluted earnings per share: Year ended December 31, (Dollars in millions, except share amounts and per share data) 2017 2016 2015 Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 100.5 $ 2.8 $ 71.1 Net income and dividends allocated to participating securities (1.1 ) (1.7 ) (2.9 ) Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders, net of allocation to participating securities 99.4 1.1 68.2 Dividends declared on common shares (86.5 ) (62.3 ) (51.1 ) Undistributed earnings (losses) attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 12.9 $ (61.2 ) $ 17.1 Distributed earnings per share $ 0.70 $ 0.56 $ 0.48 Undistributed earnings (losses) per share 0.13 (0.55 ) 0.18 Income per basic 0.83 0.01 0.66 Income per diluted $ 0.83 $ 0.01 $ 0.66 Weighted-average shares outstanding for basic 119,147,192 109,094,530 103,261,513 Weighted average shares outstanding for diluted 119,147,192 109,094,530 109,553,728 Dividends declared per common share $ 0.70 $ 0.56 $ 0.48 There was a total of 1,080,092 potentially dilutive securities during the year ended December 31, 2017 that have not been included in the diluted weighted average shares as they are anti-dilutive. During December 31, 2016 , 3,259,345 potentially dilutive securities were not included in the diluted weighted average shares as they were anti-dilutive. During December 31, 2015 , 6,292,215 potentially dilutive securities were all dilutive to earnings per share. Potentially anti-dilutive securities include preferred stock and unvested restricted stock grants.

SEGMENT INFORMATION

SEGMENT INFORMATION	12 Months Ended
	Dec. 31, 2017
Segment Reporting [Abstract]
SEGMENT INFORMATION	SEGMENT INFORMATION Kennedy Wilson is a global real estate investment company. The Company owns, operates, and invests in real estate both on its own and through our investment management platform. To complement its investment business, the Company also provides real estate services primarily to financial services clients. Kennedy Wilson’s segment disclosure with respect to the determination of segment profit or loss and segment assets is based on these two core segments: KW Investments and KW Investment Management and Real Estate Services (IMRES). KW Investments invests in multifamily, office, retail, industrial and residential properties as well as loans secured by real estate. IMRES provides a full array of real estate-related services to investors and lenders, with a strong focus on financial institution-based clients. Kennedy Wilson’s segment disclosure with respect to the determination of segment profit or loss and segment assets is based on these services and investments. Substantially all of the revenue—related party was generated via inter-segment activity for the years ended December 31, 2017 , 2016 and 2015 . Generally, this revenue consists of fees earned on investments in which Kennedy Wilson also has an ownership interest. The amounts representing investments with related parties and non-affiliates are included in the investment segment. The fees earned from related parties are included in the IMRES segment. KW Investments We invest our capital in real estate assets and loans secured by real estate either on our own or through our investment management platform. When we have partners, we are typically the general partner in the arrangement with a promoted interest in the profits of our investments beyond our ownership percentage. The Company has an average ownership interest across all investments of approximately 62% as of December 31, 2017 . Our equity partners include public shareholders, financial institutions, foundations, endowments, high net worth individuals and other institutional investors. See the "Business Segments" section in Item 1 for a more detailed discussion of the different components of the KW Investments segment. KW Investment Management and Real Estate Services (IMRES) IMRES encompasses the Company fee generating businesses which includes both the Company's investment management platform as well as the Company's third-party services business. The Company's clients include financial institutions, institutional investors, insurance companies, developers, builders, government agencies and prior to the KWE Transaction shareholders of KWE. IMRES has five main lines of business: investment management, property services, research, brokerage, and auction and conventional sales. These five business lines generate revenue for us through fees and commissions. See the "Business Segments" section in Item 1 for a more detailed discussion of the different components of the IMRES segment. The Company manages approximately 53.1 million square feet of properties for the Company and its investment partners (including KWE) in the United States, Europe, and Asia, which includes assets we have ownership interests in and third party owned assets. With 25 offices throughout the United States, the United Kingdom, Ireland, Jersey, Spain and Japan, we have the capabilities and resources to provide property services to real estate owners as well as the experience, as a real estate investor, to understand client concerns. The managers of IMRES have an extensive track record in their respective lines of business and in the real estate community as a whole. Their knowledge and relationships are an excellent driver of businesses through the services business as well as on the investment front. Additionally, IMRES plays a critical role in supporting our investment strategy by providing local market intelligence and real-time data for evaluating investments, generating proprietary transaction flow and creating value through efficient implementation of asset management or repositioning strategies. No single third-party client accounted for 10% or more of Kennedy Wilson's revenue during any period presented in these financial statements. The following tables summarize the income and expense activity by segment for the years ended December 31, 2017 , 2016 and 2015 and total assets as of December 31, 2017 and 2016 . Year Ended December 31, (Dollars in millions) 2017 2016 2015 Investments Rental $ 504.7 $ 485.9 $ 404.8 Hotel 127.5 116.2 106.4 Sale of real estate 111.5 29.3 3.7 Loans and other income 15.2 12.6 19.5 Total revenue 758.9 644.0 534.4 Depreciation and amortization (212.2 ) (198.2 ) (166.3 ) Operating Expenses (433.8 ) (345.2 ) (283.3 ) Income from unconsolidated investments 66.4 122.8 93.6 Operating Income 179.3 223.4 178.4 Gain on sale of real estate 226.7 130.7 72.4 Acquisition-related gains — 16.2 108.1 Acquisition-related expenses (4.4 ) (9.5 ) (37.3 ) Interest expense (145.6 ) (137.4 ) (108.8 ) Other (5.1 ) (1.2 ) (2.5 ) Income before benefit from income taxes 250.9 222.2 210.3 (Provision for) benefit from income taxes (4.8 ) 5.0 (23.4 ) Net income 246.1 227.2 186.9 Net (income) loss attributable to the non-controlling interests (37.5 ) (70.9 ) 15.3 Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 208.6 $ 156.3 $ 202.2 Year Ended December 31, (Dollars in millions) 2017 2016 2015 Investment Management and Real Estate Services Investment management, property services, and research fees (includes $20.8, $28.9, and $37.8 million of related party fees, respectively) $ 51.7 $ 59.4 $ 69.3 Total revenue 51.7 59.4 69.3 Depreciation and amortization (0.3 ) — — Operating expenses (54.3 ) (54.9 ) (69.7 ) Income from unconsolidated investments 2.6 3.8 3.8 Net Income (0.3 ) 8.3 3.4 Net loss attributable to the noncontrolling interests — — 0.4 Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ (0.3 ) $ 8.3 $ 3.8 Year Ended December 31, (Dollars in millions) 2017 2016 2015 Corporate Operating expenses $ (70.2 ) $ (93.6 ) $ (53.4 ) Operating loss (70.2 ) (93.6 ) (53.4 ) Interest expense (72.1 ) (54.2 ) (47.9 ) Other 13.4 7.8 — Loss before benefit from (provision for) income taxes (128.9 ) (140.0 ) (101.3 ) Benefit from (provision for) income taxes 21.1 (19.0 ) (30.0 ) Net loss (107.8 ) (159.0 ) (131.3 ) Preferred dividends and accretion of preferred stock issuance costs — (2.8 ) (3.6 ) Net loss attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ (107.8 ) $ (161.8 ) $ (134.9 ) Year Ended December 31, (Dollars in millions) 2017 2016 2015 Consolidated Rental $ 504.7 $ 485.9 $ 404.8 Hotel 127.5 116.2 106.4 Sale of real estate 111.5 29.3 3.7 Investment management, property services, and research fees (includes $20.8, $28.9, and $37.8 million of related party fees, respectively) 51.7 59.4 69.3 Loans purchases, loan originations, and other 15.2 12.6 19.5 Total revenue 810.6 703.4 603.7 Operating expenses 558.3 493.7 406.4 Depreciation and amortization 212.5 198.2 166.3 Total operating expenses 770.8 691.9 572.7 Income from unconsolidated investments 69.0 126.6 97.4 Operating income 108.8 138.1 128.4 Gain on sale of real estate 226.7 130.7 72.4 Acquisition-related gains — 16.2 108.1 Acquisition-related expenses (4.4 ) (9.5 ) (37.3 ) Interest expense (217.7 ) (191.6 ) (156.7 ) Other 8.3 6.6 (2.5 ) Income before benefit from (provision for) income taxes 121.7 90.5 112.4 Benefit from (provision for) income taxes 16.3 (14.0 ) (53.4 ) Net income 138.0 76.5 59.0 Net (income) loss attributable to the noncontrolling interests (37.5 ) (70.9 ) 15.7 Preferred dividends and accretion of preferred stock issuance costs — (2.8 ) (3.6 ) Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 100.5 $ 2.8 $ 71.1 December 31, (Dollars in millions) 2017 2016 Assets Investments $ 7,563.7 $ 7,375.5 Services 70.5 78.1 Corporate 90.6 203.0 Total assets $ 7,724.8 $ 7,656.6 December 31, (Dollars in millions) 2017 2016 2015 Expenditures for long lived assets Investments $ (814.3 ) $ (949.6 ) $ (1,927.6 ) Geographic Information: The revenue shown in the table below is allocated based upon the country in which services are performed. Year Ended December 31, (Dollars in millions) 2017 2016 2015 United States $ 316.3 $ 304.1 $ 229.3 Europe 493.3 397.2 361.1 Japan 1.0 2.1 13.3 Total revenue $ 810.6 $ 703.4 $ 603.7

GUARANTOR AND NON-GUARANTOR FIN

GUARANTOR AND NON-GUARANTOR FINANCIAL STATEMENTS	12 Months Ended
	Dec. 31, 2017
Guarantor and Nonguarantor Financial Statements [Abstract]
GUARANTOR AND NON-GARANTOR FINANCIAL STATEMENTS	GUARANTOR AND NON-GUARANTOR FINANCIAL STATEMENTS The following consolidating financial information and condensed consolidating financial information includes: (1) Condensed consolidating balance sheets as of December 31, 2017 and 2016 , respectively; consolidating statements of operations and comprehensive (loss) income for the years ended December 31, 2017 , 2016 and 2015 , respectively; and condensed consolidating statements of cash flows for the years ended December 31, 2017 , 2016 and 2015 , respectively, of (a) Kennedy-Wilson Holdings, Inc. on an unconsolidated basis as the parent (and guarantor), (b) Kennedy-Wilson, Inc., as the subsidiary issuer, (c) the guarantor subsidiaries, (d) the non-guarantor subsidiaries and (e) Kennedy-Wilson Holdings, Inc. on a consolidated basis; and (2) Elimination entries necessary to consolidate Kennedy-Wilson Holdings, Inc., as the parent guarantor, with Kennedy-Wilson, Inc. and its guarantor and non-guarantor subsidiaries Kennedy Wilson owns 100% of all of the guarantor subsidiaries, and, as a result, in accordance with Rule 3-10(d) of Regulation S-X promulgated by the SEC, no separate financial statements are required for these subsidiaries as of December 31, 2017 or 2016 and for the years ended December 31, 2017 , 2016 or 2015 . CONDENSED CONSOLIDATING BALANCE SHEET AS OF DECEMBER 31, 2017 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Assets Cash and cash equivalents $ — $ 33.4 $ 54.9 $ 263.0 $ — $ 351.3 Accounts receivable — 0.9 10.1 51.7 — 62.7 Loan purchases and originations — — 5.8 78.9 — 84.7 Real estate and acquired in place lease values, net of accumulated depreciation and amortization — — 1,750.0 4,693.7 — 6,443.7 Unconsolidated investments — 20.2 298.3 167.9 — 486.4 Investments in and advances to consolidated subsidiaries 1,394.5 2,642.1 1,629.4 — (5,666.0 ) — Other assets — — 73.1 222.9 — 296.0 Total assets $ 1,394.5 $ 2,696.6 $ 3,821.6 $ 5,478.1 $ (5,666.0 ) $ 7,724.8 Liabilities Accounts Payable — 0.8 2.5 16.2 — 19.5 Accrued expenses and other liabilities 28.9 121.9 39.7 275.4 465.9 Mortgage debt — — 1,137.3 2,019.3 3,156.6 KW unsecured debt — 1,179.4 — — — 1,179.4 KWE unsecured bonds — — — 1,325.9 — 1,325.9 Total liabilities 28.9 1,302.1 1,179.5 3,636.8 — 6,147.3 Equity Kennedy-Wilson Holdings, Inc. shareholders' equity 1,365.6 1,394.5 2,642.1 1,629.4 (5,666.0 ) 1,365.6 Noncontrolling interests — — — 211.9 — 211.9 Total equity 1,365.6 1,394.5 2,642.1 1,841.3 (5,666.0 ) 1,577.5 Total liabilities and equity $ 1,394.5 $ 2,696.6 $ 3,821.6 $ 5,478.1 $ (5,666.0 ) $ 7,724.8 CONDENSED CONSOLIDATING BALANCE SHEET AS OF DECEMBER 31, 2016 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Assets Cash and cash equivalents $ — $ 106.0 $ 45.4 $ 734.3 $ — $ 885.7 Accounts receivable — — 10.2 33.8 — 44.0 Loan purchases and originations — 0.3 12.1 75.3 — 87.7 Real estate and acquired in place lease values, net of accumulated depreciation and amortization — — 1,482.5 4,331.7 — 5,814.2 Unconsolidated investments — 18.8 380.0 156.8 — 555.6 Investments in and advances to consolidated subsidiaries 1,063.8 2,073.1 1,171.7 — (4,308.6 ) — Other assets — 0.2 66.9 202.3 — 269.4 Total assets $ 1,063.8 $ 2,198.4 $ 3,168.8 $ 5,534.2 $ (4,308.6 ) $ 7,656.6 Liabilities Accounts Payable $ — $ 0.5 $ 1.6 $ 9.1 $ — $ 11.2 Accrued expenses and other liabilities 15.8 200.0 157.2 39.1 — 412.1 Mortgage debt — — 936.8 1,833.6 — 2,770.4 KW unsecured debt — 934.1 — — — 934.1 KWE unsecured bonds — — — 1,185.7 — 1,185.7 Total liabilities 15.8 1,134.6 1,095.6 3,067.5 — 5,313.5 Equity Kennedy-Wilson Holdings, Inc. shareholders' equity 1,048.0 1,063.8 2,073.2 1,171.6 (4,308.6 ) 1,048.0 Noncontrolling interests — — — 1,295.1 — 1,295.1 Total equity 1,048.0 1,063.8 2,073.2 2,466.7 (4,308.6 ) 2,343.1 Total liabilities and equity $ 1,063.8 $ 2,198.4 $ 3,168.8 $ 5,534.2 $ (4,308.6 ) $ 7,656.6 CONSOLIDATING STATEMENT OF OPERATIONS FOR THE YEAR ENDED DECEMBER 31, 2017 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Revenue Rental $ — $ — $ 143.9 $ 360.8 $ — $ 504.7 Hotel — — — 127.5 — 127.5 Sale of real estate — — 2.3 109.2 — 111.5 Investment management, property services, and research fees — — 43.4 8.3 — 51.7 Loan purchases, loan originations, and other — — 0.5 14.7 — 15.2 Total revenue — — 190.1 620.5 — 810.6 Operating expenses Rental operating — — 54.7 96.5 — 151.2 Hotel operating — — — 100.3 — 100.3 Cost of real estate sold — — 1.8 78.4 — 80.2 Commission and marketing — — 7.0 0.2 — 7.2 Compensation and related 38.4 78.3 52.8 7.7 — 177.2 General and administrative — 14.0 17.6 10.6 — 42.2 Depreciation and amortization — 1.4 50.1 161.0 — 212.5 Total operating expenses 38.4 93.7 184.0 454.7 — 770.8 Income from unconsolidated investments — 3.7 33.0 32.3 — 69.0 Income from consolidated subsidiaries 176.4 307.5 256.2 — (740.1 ) — Operating income 138.0 217.5 295.3 198.1 (740.1 ) 108.8 Non-operating income (expense) Gain on sale of real estate — — 46.6 180.1 — 226.7 Acquisition-related gains — — — — — — Acquisition-related expenses — — (1.3 ) (3.1 ) — (4.4 ) Interest expense — (72.1 ) (38.0 ) (107.6 ) — (217.7 ) Other income — 9.9 1.6 (3.2 ) — 8.3 Income before provision from income taxes 138.0 155.3 304.2 264.3 (740.1 ) 121.7 Benefit from (provision for) income taxes — 21.1 3.3 (8.1 ) — 16.3 Net income 138.0 176.4 307.5 256.2 (740.1 ) 138.0 Net loss attributable to the noncontrolling interests — — — (37.5 ) — (37.5 ) Net income attributable to Kennedy-Wilson Holdings, Inc. 138.0 176.4 307.5 218.7 (740.1 ) 100.5 Preferred dividends and accretion of preferred stock issuance costs — — — — — — Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 138.0 $ 176.4 $ 307.5 $ 218.7 $ (740.1 ) $ 100.5 CONSOLIDATING STATEMENT OF OPERATIONS FOR THE YEAR ENDED DECEMBER 31, 2016 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Revenue Rental $ — $ — $ 114.0 $ 371.9 $ — $ 485.9 Hotel — — — 116.2 — 116.2 Sale of real estate — — 12.2 17.1 — 29.3 Investment management, property services, and research fees — — 53.7 5.7 — 59.4 Loan purchases, loan originations, and other — 0.1 1.1 11.4 — 12.6 Total revenue — 0.1 181.0 522.3 — 703.4 Operating expenses Rental operating — — 48.7 86.7 — 135.4 Hotel operating — — — 96.3 — 96.3 Cost of real estate sold — — 9.6 12.5 — 22.1 Commission and marketing — — 7.3 0.7 — 8.0 Compensation and related 65.1 66.4 47.5 7.5 — 186.5 General and administrative — 15.9 16.3 13.2 — 45.4 Depreciation and amortization — 1.3 39.5 157.4 — 198.2 Total operating expenses 65.1 83.6 168.9 374.3 — 691.9 Income from unconsolidated investments — 5.6 64.0 57.0 — 126.6 Income from consolidated subsidiaries 141.6 285.1 204.9 — (631.6 ) — Operating income 76.5 207.2 281.0 205.0 (631.6 ) 138.1 Non-operating income (expense) Gain on sale of real estate — — 19.6 111.1 — 130.7 Acquisition-related gains — — 7.6 8.6 — 16.2 Acquisition-related expenses — — (2.3 ) (7.2 ) — (9.5 ) Interest expense — (54.2 ) (25.4 ) (112.0 ) — (191.6 ) Other income (loss) — 7.7 (2.7 ) 1.6 — 6.6 Income before benefit from income taxes 76.5 160.7 277.8 207.1 (631.6 ) 90.5 Provision for income taxes — (19.1 ) 7.3 (2.2 ) — (14.0 ) Net income 76.5 141.6 285.1 204.9 (631.6 ) 76.5 Net income attributable to the noncontrolling interests — — — (70.9 ) — (70.9 ) Net income attributable to Kennedy-Wilson Holdings, Inc. 76.5 141.6 285.1 134.0 (631.6 ) 5.6 Preferred dividends and accretion of preferred stock issuance costs (2.8 ) — — — — (2.8 ) Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 73.7 $ 141.6 $ 285.1 $ 134.0 $ (631.6 ) $ 2.8 CONSOLIDATING STATEMENT OF OPERATIONS FOR THE YEAR ENDED DECEMBER 31, 2015 ( Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries (1) Non-guarantor Subsidiaries Elimination Consolidated Total Revenue Rental — — 65.4 339.4 — 404.8 Hotel — — — 106.4 — 106.4 Sale of real estate — — — 3.7 — 3.7 Investment management, property services, and research fees — — 66.1 3.2 — 69.3 Loan purchases, loan originations, and other — 0.1 1.2 18.2 — 19.5 Total revenue — 0.1 132.7 470.9 — 603.7 Operating expenses Rental operating — — 25.3 82.7 — 108.0 Hotel operating — — — 89.9 — 89.9 Cost of real estate sold — — — 2.6 — 2.6 Commission and marketing — 1.6 4.6 1.1 — 7.3 Compensation and related 30.8 50.1 65.4 8.5 — 154.8 General and administrative — 15.0 16.7 12.1 — 43.8 Depreciation and amortization — 0.8 20.8 144.7 — 166.3 Total operating expenses 30.8 67.5 132.8 341.6 — 572.7 Income from unconsolidated investments — 0.4 79.3 17.7 — 97.4 Income from consolidated subsidiaries 89.8 220.1 95.9 — (405.8 ) — Operating income 59.0 153.1 175.1 147.0 (405.8 ) 128.4 Non-operating income (expense) Gain on sale of real estate — — 0.1 72.3 — 72.4 Acquisition-related gains — — 70.0 38.1 — 108.1 Acquisition-related expenses — (0.8 ) (0.7 ) (35.8 ) — (37.3 ) Interest expense — (47.9 ) (15.8 ) (93.0 ) — (156.7 ) Other income (loss) — 1.0 (1.7 ) (1.8 ) — (2.5 ) Income before provision for income taxes 59.0 105.4 227.0 126.8 (405.8 ) 112.4 Provision for income taxes — (15.6 ) (6.9 ) (30.9 ) — (53.4 ) Net income 59.0 89.8 220.1 95.9 (405.8 ) 59.0 Net income attributable to the noncontrolling interests — — — 15.7 — 15.7 Net income attributable to Kennedy-Wilson Holdings, Inc. 59.0 89.8 220.1 111.6 (405.8 ) 74.7 Preferred dividends and accretion of preferred stock issuance costs (3.6 ) — — — — (3.6 ) Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 55.4 $ 89.8 $ 220.1 $ 111.6 $ (405.8 ) $ 71.1 CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME FOR THE YEAR ENDED DECEMBER 31, 2017 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Net income (loss) $ 138.0 $ 176.4 $ 307.5 $ 256.2 $ (740.1 ) $ 138.0 Other comprehensive income (loss), net of tax: Unrealized gain on marketable securities 0.2 0.2 — — (0.2 ) 0.2 Unrealized foreign currency translation gain 155.3 155.3 30.6 458.7 (644.6 ) 155.3 Amounts reclassified from accumulated other comprehensive income 2.0 2.0 — 2.0 (4.0 ) 2.0 Unrealized forward contract forward currency loss (68.3 ) (68.3 ) (21.9 ) (46.4 ) 136.6 (68.3 ) Total other comprehensive income for the period $ 89.2 $ 89.2 $ 8.7 $ 414.3 $ (512.2 ) $ 89.2 Comprehensive income 227.2 265.6 316.2 670.5 (1,252.3 ) 227.2 Comprehensive income attributable to noncontrolling interests — — — (124.2 ) — (124.2 ) Comprehensive income attributable to Kennedy-Wilson Holdings, Inc. $ 227.2 $ 265.6 $ 316.2 $ 546.3 $ (1,252.3 ) $ 103.0 CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME FOR THE YEAR ENDED DECEMBER 31, 2016 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Net income (loss) $ 76.5 $ 141.6 $ 285.1 $ 204.9 $ (631.6 ) $ 76.5 Other comprehensive income (loss), net of tax: Unrealized gain on marketable securities 0.1 0.1 — — (0.1 ) 0.1 Unrealized foreign currency translation loss (164.1 ) (164.1 ) (23.1 ) (161.9 ) 349.1 (164.1 ) Amounts reclassified from accumulated other comprehensive income 3.4 3.4 — 3.4 (6.8 ) 3.4 Unrealized forward contract forward currency (loss) gain (100.1 ) (100.1 ) 21.3 (121.4 ) 200.2 (100.1 ) Total other comprehensive (loss) income for the period (260.7 ) (260.7 ) (1.8 ) (279.9 ) 542.4 (260.7 ) Comprehensive income (loss) $ (184.2 ) $ (119.1 ) $ 283.3 $ (75.0 ) $ (89.2 ) $ (184.2 ) Comprehensive loss attributable to noncontrolling interests — — — 166.3 — 166.3 Comprehensive income (loss) attributable to Kennedy-Wilson Holdings, Inc. $ (184.2 ) $ (119.1 ) $ 283.3 $ 91.3 $ (89.2 ) $ (17.9 ) CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME FOR THE YEAR ENDED DECEMBER 31, 2015 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Net income (loss) $ 59.0 $ 89.8 $ 220.1 $ 95.9 $ (405.8 ) $ 59.0 Other comprehensive loss, net of tax: Unrealized gain on marketable securities 0.1 0.1 — — (0.1 ) 0.1 Unrealized foreign currency translation gain (loss) (138.3 ) (138.3 ) (13.6 ) (29.6 ) 181.5 (138.3 ) Amounts reclassified from accumulated other comprehensive income 9.7 9.7 (0.6 ) 10.3 (19.4 ) 9.7 Unrealized forward contract forward currency gain (loss) 6.3 6.3 11.5 (5.2 ) (12.6 ) 6.3 Total other comprehensive loss for the period (122.2 ) (122.2 ) (2.7 ) (24.5 ) 149.4 (122.2 ) Comprehensive (loss) income $ (63.2 ) $ (32.4 ) $ 217.4 $ 71.4 $ (256.4 ) $ (63.2 ) Comprehensive loss attributable to noncontrolling interests — — — 118.4 — 118.4 Comprehensive income (loss) attributable to Kennedy-Wilson Holdings, Inc. $ (63.2 ) $ (32.4 ) $ 217.4 $ 189.8 $ (256.4 ) $ 55.2 CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS FOR THE YEAR ENDED DECEMBER 31, 2017 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Consolidated Total Net cash provided by operating activities $ (15.3 ) $ (182.8 ) $ (51.4 ) $ 322.5 $ 73.0 Cash flows from investing activities: Collections of loans — — 6.4 10.5 16.9 Net proceeds from sale of real estate — — 130.8 528.3 659.1 Purchases of and additions to real estate — — (422.5 ) (391.8 ) (814.3 ) Investment in marketable securities — — (0.8 ) — (0.8 ) Proceeds from sale of marketable securities — — 1.1 — 1.1 Investing distributions from unconsolidated investments — — 95.2 38.2 133.4 Contributions to unconsolidated investments — — (49.8 ) (30.1 ) (79.9 ) Proceeds from settlement of foreign currency derivative contracts — (2.8 ) — — (2.8 ) Purchases of foreign currency derivative contracts — (0.4 ) — — (0.4 ) Additions to development project asset — — — (19.4 ) (19.4 ) Proceeds from development project asset — — — 36.9 36.9 (Investments in) distributions from consolidated subsidiaries, net 198.0 (126.2 ) 166.3 (238.1 ) — Net cash (used in) provided by investing activities 198.0 (129.4 ) (73.3 ) (65.5 ) (70.2 ) Cash flow from financing activities: Repayment of senior notes payable — (55.0 ) — — (55.0 ) Costs associated with KWE Transaction (55.8 ) — — — (55.8 ) Borrowings under lines of credit — 800.0 — — 800.0 Repayment of lines of credit — (500.0 ) — — (500.0 ) Borrowings under investment debt — — 239.5 608.8 848.3 Repayment of investment debt — — (103.4 ) (581.3 ) (684.7 ) Debt issue costs — (5.4 ) (1.9 ) (2.2 ) (9.5 ) Repurchase of common stock (67.7 ) — — — (67.7 ) Cash paid to acquire noncontrolling interest in KWE — — — (719.8 ) (719.8 ) Dividends paid (59.2 ) — — — (59.2 ) Acquisitions of noncontrolling interests — — — (3.3 ) (3.3 ) Contributions from noncontrolling interests — — — 47.4 47.4 Distributions to noncontrolling interests — — — (106.0 ) (106.0 ) Net cash provided by (used in) financing activities (182.7 ) 239.6 134.2 (756.4 ) (565.3 ) Effect of currency exchange rate changes on cash and cash equivalents — — — 28.1 28.1 Net change in cash and cash equivalents — (72.6 ) 9.5 (471.3 ) (534.4 ) Cash and cash equivalents, beginning of year — 106.0 45.4 734.3 885.7 Cash and cash equivalents, end of year $ — $ 33.4 $ 54.9 $ 263.0 $ 351.3 CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS FOR THE YEAR ENDED DECEMBER 31, 2016 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Consolidated Total Net cash (used in) provided by operating activities: $ (0.2 ) $ (207.9 ) $ 102.2 $ 208.8 $ 102.9 Cash flows from investing activities: Additions to loans — (11.6 ) (4.5 ) — (16.1 ) Collections of loans — 6.6 4.9 135.4 146.9 Net proceeds from sale of real estate — — 109.2 430.9 540.1 Purchases of and additions to real estate — — (404.2 ) (545.4 ) (949.6 ) Investment in marketable securities — — (3.2 ) — (3.2 ) Investing distributions from unconsolidated investments — 54.5 35.1 89.6 Contributions to unconsolidated investments — (1.0 ) (104.4 ) (19.5 ) (124.9 ) Proceeds from settlement of foreign currency derivative contracts — 38.6 — — 38.6 Purchases of foreign currency derivative contracts — (8.1 ) — — (8.1 ) (Investments in) distributions from consolidated subsidiaries, net 129.8 (36.9 ) (95.4 ) 2.5 — Net cash (used in) provided by investing activities 129.8 (12.4 ) (443.1 ) 39.0 (286.7 ) Cash flow from financing activities: Borrowings under senior notes payable — 250.0 — — 250.0 Borrowings under lines of credit — 125.0 — — 125.0 Repayment of lines of credit — (125.0 ) — — (125.0 ) Borrowings under investment debt — — 530.9 658.8 1,189.7 Repayment of investment debt — — (179.5 ) (428.6 ) (608.1 ) Debt issue costs — (3.9 ) (2.1 ) (4.8 ) (10.8 ) Repurchase of common stock (64.8 ) — — — (64.8 ) Dividends paid (64.8 ) — — — (64.8 ) Acquisitions of noncontrolling interests — — — (196.9 ) (196.9 ) Contributions from noncontrolling interests — — — 42.1 42.1 Distributions from noncontrolling interests — — — (116.6 ) (116.6 ) Net cash provided by financing activities (129.6 ) 246.1 349.3 (46.0 ) 419.8 Effect of currency exchange rate changes on cash and cash equivalents — — — (81.9 ) (81.9 ) Net change in cash and cash equivalents — 25.8 8.4 119.9 154.1 Cash and cash equivalents, beginning of year — 80.2 37.0 614.4 731.6 Cash and cash equivalents, end of year $ — $ 106.0 $ 45.4 $ 734.3 $ 885.7 CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS FOR THE YEAR ENDED DECEMBER 31, 2015 ( Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Consolidated Total Net cash provided by (used in) operating activities: $ 5.3 $ 67.4 $ 105.4 $ 0.1 $ 178.2 Cash flows from investing activities: Additions to loans — (41.0 ) — (194.8 ) (235.8 ) Settlements of loans — — 8.8 19.0 27.8 Net proceeds from sale of real estate — — — 622.6 622.6 Purchases of and additions to real estate — — (220.3 ) (1,707.3 ) (1,927.6 ) Nonrefundable escrow deposits — — — (3.8 ) (3.8 ) Investment in marketable securities — — (5.0 ) — (5.0 ) Proceeds from sale of marketable securities — — 6.2 — 6.2 Distributions from unconsolidated investments — — 83.1 96.9 180.0 Contributions to unconsolidated investments — (2.9 ) (81.5 ) (99.9 ) (184.3 ) Proceeds from settlement of foreign currency derivative contracts — 23.4 — 18.1 41.5 Purchases of foreign currency derivative contracts — (3.6 ) — (1.6 ) (5.2 ) (Investments in) distributions from consolidated subsidiaries, net (157.1 ) 128.4 (40.0 ) 68.7 — Net cash (used in) provided by investing activities (157.1 ) 104.3 (248.7 ) (1,182.1 ) (1,483.6 ) Cash flow from financing activities: Borrowings under lines of credit — 95.0 — — 95.0 Repayment of lines of credit — (220.0 ) — — (220.0 ) Borrowings under investment debt — — 168.1 1,919.8 2,087.9 Repayment of investment debt — — (7.4 ) (673.7 ) (681.1 ) Debt issuance costs — (4.7 ) (1.4 ) (15.6 ) (21.7 ) Issuance of common stock 215.0 — — — 215.0 Repurchase of common stock (11.4 ) — — — (11.4 ) Dividends paid (51.8 ) — — — (51.8 ) Acquisitions of noncontrolling interests — — — (68.4 ) (68.4 ) Contributions from noncontrolling interests — — — 14.5 14.5 Distributions from noncontrolling interests — — — (239.2 ) (239.2 ) Net cash provided by (used in) financing activities 151.8 (129.7 ) 159.3 937.4 1,118.8 Effect of currency exchange rate changes on cash and cash equivalents — — — (19.5 ) (19.5 ) Net change in cash and cash equivalents — 42.0 16.0 (264.1 ) (206.1 ) Cash and cash equivalents, beginning of year — 38.2 21.0 878.5 937.7 Cash and cash equivalents, end of year $ — $ 80.2 $ 37.0 $ 614.4 $ 731.6

UNAUDITED QUARTERLY INFORMATION

UNAUDITED QUARTERLY INFORMATION	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
UNAUDITED QUARTERLY INFORMATION	UNAUDITED QUARTERLY INFORMATION (Dollars in millions, except earnings per share amounts) Year ended December 31, 2017 Fourth Quarter Third Quarter Second Quarter First Quarter Revenues $ 181.5 $ 277.2 $ 177.8 $ 174.2 Operating expenses 206.0 231.2 178.3 155.4 Income from unconsolidated investments 20.2 12.9 13.4 22.6 Operating (loss) income (4.3 ) 58.9 12.9 41.4 Non-operating (expenses) income 92.5 (52.8 ) 17.7 (44.4 ) Income (loss) before provision for income taxes 88.2 6.1 30.6 (3.0 ) (Provision for) benefit from income taxes 17.2 3.7 (8.8 ) 4.2 Net income (loss) 105.4 9.8 21.8 1.2 Net (income) loss attributable to noncontrolling interests (6.2 ) (18.7 ) (12.4 ) (0.2 ) Preferred stock dividends and accretion of issuance costs — — — — Net (loss) income attributable to Kennedy-Wilson $ 99.2 $ (8.9 ) $ 9.4 $ 1.0 Basic (loss) earnings per share $ 0.69 $ (0.08 ) $ 0.08 $ — Diluted (loss) earnings per share $ 0.69 $ (0.08 ) $ 0.08 $ — (Dollars in millions, except earnings per share amounts) Year ended December 31, 2016 Fourth Third Second First Revenues $ 180.4 $ 174.3 $ 176.5 $ 172.2 Operating expenses 194.3 166.1 168.6 162.9 Income from unconsolidated investments 67.3 31.7 8.4 19.2 Operating income (loss) 53.4 39.9 16.3 28.5 Non-operating (expenses) income 3.7 (21.3 ) (22.4 ) (7.6 ) Income (loss) before provision for income taxes 57.1 18.6 (6.1 ) 20.9 (Provision for) benefit from income taxes (11.9 ) (5.5 ) 3.9 (0.5 ) Net income (loss) 45.2 13.1 (2.2 ) 20.4 Net (income) loss attributable to noncontrolling interests (29.6 ) (15.1 ) 1.1 (27.3 ) Preferred stock dividends and accretion of issuance costs (1.2 ) (0.5 ) (0.5 ) (0.6 ) Net (loss) income attributable to Kennedy-Wilson $ 14.4 $ (2.5 ) $ (1.6 ) $ (7.5 ) Basic (loss) earnings per share $ 0.13 $ (0.03 ) $ (0.02 ) $ (0.07 ) Diluted (loss) earnings per share $ 0.13 $ (0.03 ) $ (0.02 ) $ (0.07 )

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	12 Months Ended
	Dec. 31, 2017
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS During the first quarter, the Company drew an additional $75.0 million on the A&R Facility. There is $375.0 million outstanding with $325.0 million available to be drawn. The Company evaluated subsequent events through the date these financial statements were issued. The Company concluded that no other subsequent events have occurred that would require disclosure in the consolidated financial statements.

Schedule III - Real Estate and

Schedule III - Real Estate and Accumulated Depreciation	12 Months Ended
	Dec. 31, 2017
SEC Schedule III, Real Estate and Accumulated Depreciation Disclosure [Abstract]
Schedule III - Real Estate and Accumulated Depreciation	Kennedy-Wilson Holdings, Inc. Schedule III—Real Estate and Accumulated Depreciation December 31, 2017 (Dollars in millions) Initial Cost Costs Capitalized Subsequent to Acquisition Gross Balance at December 31, 2017 (1) Description Region Encumbrances Land Building & Improvements Improvements Land Building & Improvements Total (2) Accumulated Depreciation Depreciable Life in Years Date of Construction Date Acquired (3) Commercial Office Southern California $ 34.2 $ 11.2 $ 18.5 $ 34.6 $ 11.5 $ 54.1 $ 65.6 $ (3.3 ) 39 yrs 1955/1981/1982 2013 Retail Mountain States 3.6 1.3 4.2 0.4 1.3 4.6 5.9 (0.5 ) 39 yrs 1981 2013 Retail Mountain States 5.3 2.1 2.9 0.9 1.8 3.8 5.6 (0.4 ) 39 yrs 1958/1974-1976/1985/1989/2006 2013 Retail Mountain States 11.2 5.1 7.8 1.1 5.1 8.9 14.0 (0.9 ) 39 yrs 1989 2013 Retail Mountain States 7.4 3.5 7.4 1.3 3.5 8.7 12.2 (0.9 ) 39 yrs 1980/1983 2013 Retail Northern California 6.9 2.7 6.7 1.1 2.7 7.8 10.5 (0.7 ) 39 yrs 1975 2013 Retail Southern California 24.5 9.1 14.0 9.4 9.1 23.4 32.5 (1.6 ) 39 yrs 1985 2014 Retail Mountain States 7.2 2.3 5.4 1.5 2.3 6.8 9.1 (0.7 ) 39 yrs 1979/1980 2014 Commercial portfolio United Kingdom — 47.5 121.2 20.1 38.8 118.5 157.3 (10.4 ) 39 yrs Various 2014 Commercial portfolio United Kingdom 171.8 88.9 328.9 11.5 72.3 274.7 347.0 (25.4 ) 39 yrs Various 2014 Office Ireland — 2.1 8.8 4.1 1.5 13.9 15.4 (2.1 ) 39 yrs 2014 Office Ireland — 13.9 21.9 0.3 12.2 71.5 83.7 (3.2 ) 39 yrs 1973/2016 2014 Office Ireland 84.5 8.2 102.6 — 7.2 90.4 97.6 (7.9 ) 39 yrs 2003 2014 Office Ireland 57.6 5.0 63.0 0.5 4.4 56.1 60.5 (5.0 ) 39 yrs 1999/2006 2014 Retail Ireland 104.4 59.8 83.1 12.4 52.7 86.0 138.7 (6.7 ) 39 yrs 1966/2005 2014 Office Ireland 82.3 20.4 73.8 0.2 18.0 65.2 83.2 (5.7 ) 39 yrs 1980 2014 Office United Kingdom — 85.3 232.0 16.2 72.6 213.8 286.4 (17.8 ) 39 yrs 2003 2014 Office Ireland 87.6 48.6 131.1 0.4 7.7 114.6 122.3 (10.8 ) 39 yrs 2009 2014 Retail United Kingdom 71.8 6.2 109.5 5.6 5.1 94.8 99.9 (8.5 ) 39 yrs 2010 2014 Retail Mountain States 12.8 5.7 12.7 0.7 5.7 13.4 19.1 (1.0 ) 39 yrs 1979/1980 2015 Office Southern California 49.5 37.8 60.6 5.6 37.8 66.1 103.9 (5.0 ) 39 yrs 1982 2015 Office Southern California 30.0 11.6 36.5 3.2 11.6 39.7 51.3 (2.9 ) 39 yrs 1968 2015 Retail Mountain States 5.0 1.6 6.0 — 1.6 6.0 7.6 (0.4 ) 39 yrs 1979/2002 2015 Office Southern California 34.9 20.7 47.9 25.0 20.7 52.7 73.4 (3.1 ) 39 yrs 1982 2015 Commercial portfolio United Kingdom 339.7 207.3 316.6 4.6 184.7 277.0 461.7 (19.8 ) 39 yrs Various 2015 Office portfolio United Kingdom — 95.8 167.4 8.1 83.2 142.6 225.8 (8.3 ) 39 yrs Various 2015 Retail portfolio Spain 51.6 21.5 60.1 — 23.4 65.5 88.9 (3.8 ) 39 yrs Various 2015 Retail Spain 43.9 27.1 46.2 11.0 31.8 65.3 97.1 (2.7 ) 39 yrs 1995 2015 Office Ireland — 0.7 6.8 — 0.7 7.2 7.9 (0.3 ) 39 yrs 1998 2015 Office portfolio Ireland — 1.8 9.6 4.3 4.1 24.7 28.8 (0.5 ) 39 yrs Various 2015 Office portfolio Italy — 47.5 135.1 0.9 52.0 148.7 200.7 (7.2 ) 39 yrs Various 2015 Retail Mountain States 7.6 2.6 9.5 — 2.6 9.5 12.1 (0.4 ) 39 yrs 1961 2017 Office building Ireland — 2.0 11.9 — 2.1 13.0 15.1 (0.6 ) 39 yrs 2007 2017 Retail Mountain States 29.0 9.3 30.0 0.6 9.3 30.5 39.8 (1.1 ) 39 yrs 1984/2008 2017 Industrial United Kingdom — 6.9 8.8 — 8.6 7.3 15.9 (0.3 ) 39 yrs 1984/2003 2017 Office portfolio United Kingdom — 32.1 70.4 0.8 29.9 66.4 96.3 (2.6 ) 39 yrs Various 2016 Office Ireland — 4.2 64.0 1.6 4.4 68.2 72.6 (2.7 ) 39 yrs 2009 2017 Industrial United Kingdom — 5.0 9.2 — 5.3 9.8 15.1 (0.3 ) 39 yrs 2002 2017 Retail Mountain States 4.3 1.3 5.6 0.4 1.3 6.0 7.3 (0.2 ) 39 yrs 1995/1996 2017 Retail Pacific Northwest 7.5 2.3 8.1 — 2.3 8.1 10.4 (0.1 ) 39 yrs 1956 2017 Office Pacific Northwest 77.0 30.6 106.0 — 30.6 106.0 136.6 (1.6 ) 39 yrs 1999/2001 2017 Retail Mountain States 12.9 4.1 12.2 — 4.1 12.2 16.3 (0.1 ) 39 yrs 1967/1983 2017 Office Ireland — 4.9 18.5 — 4.9 18.8 23.7 (0.1 ) 39 yrs 1841 2017 Office Ireland — 11.0 — 1.4 11.3 1.4 12.7 — 39 yrs 1840/2000 2017 Multifamily 450-unit asset Mountain States 47.3 18.4 43.0 5.0 18.4 48.0 66.4 (7.1 ) 39 yrs 1974 2013 297-unit asset Pacific Northwest 22.1 3.9 25.8 2.0 3.9 27.8 31.7 (3.3 ) 39 yrs 1999 2013 178-unit asset Northern California 31.4 12.3 18.5 7.3 12.3 25.7 38.0 (5.2 ) 39 yrs 1975 2012 217-unit asset Pacific Northwest 23.9 2.6 41.4 2.7 2.5 41.9 44.4 (5.9 ) 39 yrs 2011 2012 366-unit asset Mountain States 53.3 9.1 36.3 7.8 9.1 44.1 53.2 (8.1 ) 39 yrs 2000 2012 205-unit asset Ireland 55.2 17.7 55.3 — 17.3 54.3 71.6 (1.2 ) 39 yrs 2007/2009 2014/2017 272-unit asset Ireland — 32.7 81.5 8.7 28.5 130.0 158.5 (13.4 ) 39 yrs 2008 2014 26-unit asset Ireland 12.4 0.6 14.8 — 0.5 13.2 13.7 (1.3 ) 39 yrs 2009 2014 210-unit asset Ireland 46.1 12.2 61.6 — 10.7 52.7 63.4 (4.9 ) 39 yrs 2005 2014 118-unit asset Ireland 27.5 11.0 36.1 2.1 9.6 33.6 43.2 (3.7 ) 39 yrs 2007 2014 423-unit asset Ireland 122.1 17.9 105.0 13.6 18.2 163.6 181.8 (11.3 ) 39 yrs 2008 2014 294-unit asset United Kingdom — 22.1 84.0 16.0 20.3 93.1 113.4 (4.1 ) 39 yrs 2012 2015 203-unit asset Pacific Northwest 19.5 2.6 23.8 2.2 2.6 26.1 28.7 (3.0 ) 39 yrs 2005 2014 542-unit asset Northern California 91.5 38.3 57.5 7.7 38.3 65.2 103.5 (7.5 ) 39 yrs 1987 2014 240-unit asset Pacific Northwest 18.7 3.9 22.3 3.4 3.9 25.7 29.6 (2.8 ) 39 yrs 1990 2014 396-unit asset Pacific Northwest 30.6 8.7 34.7 5.7 8.7 40.4 49.1 (4.4 ) 39 yrs 1989/1995 2014 118-unit asset Pacific Northwest 13.5 2.1 18.6 1.1 2.1 19.7 21.8 (1.9 ) 39 yrs 1990 2014 324-unit asset Mountain States 25.8 3.2 28.6 5.2 3.2 33.8 37.0 (3.5 ) 39 yrs 1996 2014 280-unit asset Pacific Northwest 37.3 6.0 40.3 1.7 6.0 41.9 47.9 (3.5 ) 39 yrs 2004/2006 2014 750-unit asset Pacific Northwest 84.8 22.1 78.2 6.8 22.1 85.0 107.1 (7.8 ) 39 yrs 1987 2014 Condo Pacific Northwest — — 0.2 — — 1.0 1.0 — 39 yrs 2005 2014 208-unit asset Southern California 37.7 9.3 37.3 3.5 9.3 40.8 50.1 (3.2 ) 39 yrs 2004 2015 1,008-unit asset Northern California 175.0 62.7 152.5 12.0 62.3 164.4 226.7 (11.8 ) 39 yrs 1988 2015 460-unit asset Southern California 45.4 13.2 53.0 2.6 13.2 55.6 68.8 (3.6 ) 39 yrs 1988 2015 204-unit asset Mountain States 13.9 2.0 17.6 1.3 2.0 18.9 20.9 (0.8 ) 39 yrs 1999 2016 168-unit asset Mountain States 10.1 1.8 13.1 1.4 1.8 14.4 16.2 (0.7 ) 39 yrs 1992 2016 430-unit asset Pacific Northwest 62.6 12.8 67.4 1.0 12.8 68.3 81.1 (2.6 ) 39 yrs 2006 2016 386-unit asset Southern California 64.8 — 81.4 3.4 0.6 84.9 85.5 (3.0 ) 39 yrs 2002 2016 157-unit asset Southern California 42.9 14.5 46.0 0.3 14.5 46.3 60.8 (1.6 ) 39 yrs 2013 2016 408-unit asset Pacific Northwest 60.4 9.2 83.3 1.5 9.3 84.7 94.0 (2.4 ) 39 yrs 1998 2016 300-unit asset Mountain States 22.9 4.8 29.2 0.6 4.8 29.9 34.7 (0.2 ) 39 yrs 1995 2017 210-unit asset Pacific Northwest 29.0 11.0 46.7 — 11.0 46.7 57.7 (0.3 ) 39 yrs 2007 2017 200-unit asset Mountain States 20.7 1.4 25.9 — 1.4 26.0 27.4 (0.2 ) 39 yrs 2012 2017 264-unit asset Pacific Northwest 25.5 6.4 44.9 — 6.4 45.0 51.4 (0.2 ) 39 yrs 1997 2017 343-unit asset Pacific Northwest 84.0 26.8 107.4 — 26.8 107.4 134.2 (0.3 ) 39 yrs 2016 2017 179-unit asset Pacific Northwest 32.9 11.9 47.4 — 11.9 47.4 59.3 — 39 yrs 2013 2017 Hotel Hotel Northern California 38.8 9.8 76.7 2.7 16.7 84.2 100.9 (7.5 ) 39 yrs 2006 2013 Hotel Mountain States 10.2 1.3 15.6 — 1.3 15.8 17.1 (1.4 ) 39 yrs 1982 2014 Hotel and golf course United Kingdom — 12.0 37.3 4.6 9.9 42.5 52.4 (3.2 ) 39 yrs 2001/2008 2014 Hotel and golf course Ireland — 6.8 30.6 3.4 6.0 35.6 41.6 (6.0 ) 39 yrs 1894/1995 2014 Hotel Ireland 86.4 54.0 114.3 21.5 49.9 129.7 179.6 (11.1 ) 39 yrs 1824/2005 2014 Development Single family home Hawaii — 4.1 4.2 0.1 3.4 3.3 6.7 (1.0 ) 39 yrs 2008 2008 Retail Spain — — 34.7 10.9 — 46.9 46.9 — N/A N/A 2015 Office Ireland — 0.5 3.4 — 0.6 10.0 10.6 — N/A Various 2015 Mixed-Use Ireland 88.6 46.2 0.6 150.4 34.5 150.4 184.9 — N/A N/A 2014 Retail Spain — — 13.8 — — 14.8 14.8 — N/A N/A 2014 Retail Ireland — 17.2 — 0.5 18.3 0.5 18.8 — N/A N/A 2016 Land 2700 acres Hawaii — 31.7 3.7 0.7 38.7 4.3 43.0 (1.4 ) N/A 1912 2010 Grand Total $ 3,180.8 $ 1,637.4 $ 4,698.0 $ 511.2 $ 1,509.4 $ 5,069.2 $ 6,578.6 $ (344.0 ) (1) The tax basis of all the properties in aggregate totaled $5,988.1 million . (2) Excludes acquired in place lease values. (3) For assets that were consolidated the date acquired represents when the asset was presented as real estate not when initially acquired by Kennedy Wilson. Changes in real estate for the years ended December 31, 2017, 2016 and 2015 were as follows: For the year ended December 31, (Dollars in millions) 2017 2016 2015 Balance at the beginning of period $ 5,805.4 $ 5,624.2 $ 4,067.1 Additions during the period: Acquisitions through foreclosure — — 99.3 Other acquisitions 179.5 542.7 1,473.1 Improvements 615.7 366.9 168.1 Consolidations — 39.3 602.1 Foreign currency 426.9 (423.6 ) (270.3 ) Deductions during the period: Cost of real estate sold (448.9 ) (344.1 ) (515.2 ) Balance at close of period $ 6,578.6 $ 5,805.4 $ 5,624.2 Changes in accumulated depreciation for the years ended December 31 2017, 2016 and 2015 were as follows: For the year ended December 31, (Dollars in millions) 2017 2016 2015 Balance at the beginning of period $ 230.3 $ 139.1 $ 61.9 Additions during the period: Depreciation expense 128.2 113.0 88.1 Deductions during the period: Dispositions (34.8 ) (11.3 ) (7.8 ) Foreign currency 20.3 (10.5 ) (3.1 ) Balance at close of period $ 344.0 $ 230.3 $ 139.1 See accompanying report of independent registered public accounting firm.

Schedule IV - Mortgage Loans on

Schedule IV - Mortgage Loans on Real Estate	12 Months Ended
	Dec. 31, 2017
Mortgage Loans on Real Estate [Abstract]
Schedule IV - Mortgage Loans on Real Estate	Kennedy-Wilson Holdings, Inc. Schedule IV—Mortgage Loans on Real Estate December 31, 2017 (Dollars in millions) Description Region Interest Rate Final Maturity Date Balloon Amount Face Amount of Mortgages Carrying Amount December 31, 2017 Principal Amount of Loans Subject to Delinquent Principal or Interest Commercial Office Southern California 1-Mo LIBOR + 2.25% 2021 $ 49.4 $ 49.4 $ 49.4 $ — Retail Mountain States 4.79% 2018 3.5 3.6 3.6 — Retail Mountain States 4.01% 2018 12.7 12.8 12.8 — Retail Mountain States 4.41% 2018 4.9 5.0 5.0 — Retail Southern California 1-Mo LIBOR + 2.75% 2020 24.1 24.5 24.5 — Retail Mountain States 4.10% 2020 10.6 11.2 11.2 — Retail Mountain States 5.75% 2023 6.2 7.4 7.4 — Retail Northern California 5.00% 2023 6.0 6.9 6.9 — Retail Mountain States 4.73% 2024 4.5 5.5 5.5 — Retail Mountain States 4.56% 2024 1.4 1.7 1.7 — Retail Mountain States 4.36% 2025 4.3 5.3 5.3 — Retail Mountain States 4.10% 2021 6.7 7.6 7.6 — Retail Mountain States 1-Mo LIBOR + 2.35% 2021 28.3 29.0 29.0 — Retail Mountain States 3.99% 2019 4.2 4.3 4.3 — Office Southern California 1-Mo LIBOR + 2.00% 2025 27.3 34.2 34.1 — Office Southern California 1-Mo LIBOR + 2.25% 2025 24.9 30.0 30.0 — Office Southern California 1-Mo LIBOR + 2.25% 2025 30.0 34.9 34.9 — Office Pacific Northwest 4.75% 2020 7.1 7.5 7.5 — Office Pacific Northwest 3.85% 2027 77.0 77.0 77.0 — Office Mountain States 4.69% 2022 11.5 12.9 12.9 — Commercial portfolio United Kingdom 3-Mo GBP LIBOR + 1.80% 2019 171.8 171.8 171.8 — Retail United Kingdom 2.82% 2025 71.7 71.7 71.7 — Office Ireland 3-Mo EURIBOR + 1.80% 2022 84.5 84.5 84.5 — Office Ireland 3-Mo EURIBOR + 1.80% 2022 57.6 57.6 57.6 — Retail Ireland 3-Mo EURIBOR + 2.00% 2022 94.8 104.4 104.4 — Office Ireland 3-Mo EURIBOR + 1.80% 2022 82.3 82.3 82.3 — Commercial portfolio United Kingdom 3-Mo GBP LIBOR + 2.50% 2018 25.7 25.7 25.7 — Commercial portfolio United Kingdom 2.90% 2020 95.5 95.5 95.5 — Commercial portfolio United Kingdom 2.91% 2023 218.5 218.5 218.5 — Office Ireland 2.59% 2024 87.6 87.6 87.6 — Retail portfolio Spain 3-Mo EURIBOR + 1.60% 2030 2.5 43.9 43.9 — Retail portfolio Spain 3-Mo EURIBOR + 1.60% 2031 6.7 51.6 51.6 — Multifamily 1,008-unit asset Northern California 3.50% 2026 175.0 175.0 175.0 — 460-unit asset Southern California 4.07% 2018 31.8 32.5 32.5 — 240-unit asset Pacific Northwest 4.25% 2019 18.3 18.6 18.7 — 396-unit asset Pacific Northwest 4.25% 2019 29.8 30.4 30.6 — 460-unit asset Southern California 1-Mo LIBOR + 3.24% 2020 12.1 12.9 12.9 — 203-unit asset Pacific Northwest 3.86% 2026 17.7 19.5 19.5 — 118-unit asset Pacific Northwest 1-Mo LIBOR + 1.74% 2021 13.5 13.5 13.5 — 217-unit asset Pacific Northwest 3.35% 2023 21.0 23.9 23.9 — 450-unit asset Mountain States 3.58% 2023 41.2 47.3 47.3 — 750-unit asset Pacific Northwest 3.73% 2023 51.7 59.1 59.4 — 750-unit asset Pacific Northwest 1-Mo LIBOR + 3.05% 2023 25.4 25.4 25.4 — 542-unit asset Northern California 3.78% 2024 69.9 77.2 77.2 — 542-unit asset Northern California 1-Mo LIBOR + 2.80% 2024 13.0 14.3 14.3 — 366-unit asset Mountain States 3.24% 2025 47.8 53.3 53.3 — 324-unit asset Mountain States 5.30% 2025 13.8 15.1 16.8 — 324-unit asset Mountain States 1-Mo LIBOR + 2.64% 2025 8.0 9.0 9.0 — 280-unit asset Pacific Northwest 3.59% 2025 32.9 37.3 37.3 — 208-unit asset Southern California 3.77% 2025 34.1 37.7 37.7 — 297-unit asset Pacific Northwest 4.93% 2026 19.0 22.1 22.1 — 178-unit asset Northern California 3.74% 2027 31.4 31.4 31.4 — 204-unit asset Mountain States 1-Mo LIBOR + 2.36% 2026 12.4 13.9 13.9 — 168-unit asset Mountain States 1-Mo LIBOR + 2.36% 2026 8.9 10.1 10.1 — 430-unit asset Pacific Northwest 3.63% 2026 56.6 62.6 62.6 — 386-unit asset and 14 retail units Southern California 1-Mo LIBOR + 2.48% 2023 59.5 64.8 64.8 — 157-unit asset Southern California 3.63% 2026 40.7 42.9 42.9 — 204-unit asset Mountain States 3.59% 2026 54.8 60.4 60.4 — 300-unit asset Mountain States 3.64% 2022 14.6 16.3 16.3 — 300-unit asset Mountain States 1-Mo LIBOR + 3.37% 2022 6.1 6.6 6.6 — 210-unit asset Pacific Northwest 1-Mo LIBOR + 1.52% 2027 29.0 29.0 29.0 — 200-unit asset Mountain States 4.13% 2027 18.8 20.7 20.7 — 264-unit asset Pacific Northwest 4.30% 2025 22.7 24.8 25.5 — 343-unit asset Pacific Northwest 3.86% 2027 84.0 84.0 84.0 — 179-unit asset Pacific Northwest 3.50% 2025 33.3 33.3 32.9 — 26-unit asset Ireland 3-Mo EURIBOR + 1.75% 2024 11.4 12.4 12.4 — 210-unit asset Ireland 2.57% 2025 46.1 46.1 46.1 — 118-unit asset Ireland 2.57% 2025 27.5 27.5 27.5 — 423-unit asset Ireland 2.57% 2025 67.8 67.8 67.8 — 176-unit asset Ireland 2.03% 2025 54.2 54.2 54.2 — 124-unit asset Ireland 3-Mo EURIBOR + 2.5% 2022 54.0 55.2 55.2 — Mixed-Use and Hotel Development - Mixed-Use Ireland 1-Mo EURIBOR + 4.25% 2019 88.6 88.6 88.6 — Hotel Mountain States 1-Mo LIBOR + 3.00% 2018 10.3 10.3 10.3 — Hotel Northern California 5.00% 2021 36.3 38.8 38.8 — Hotel Ireland 3.88% 2025 86.4 86.4 86.4 — $ 2,975.2 $ 3,178.0 $ 3,180.5 $ — Activity for the year ended December 31, 2017 is as follows: Balance - December 31, 2016 $ 2,788.8 New mortgage loans 916.5 Other additions 17.0 Amortization of mortgage premium (4.0 ) Payments of principal (690.0 ) Foreign currency gain (loss) 152.2 Balance - December 31, 2017 $ 3,180.5 See accompanying report of independent registered public accounting firm.

BASIS OF PRESENTATION AND SUM33

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
BASIS OF PRESENTATION	The consolidated financial statements include the accounts of Kennedy Wilson and voting interest entities which it controls. All significant intercompany balances and transactions have been eliminated in consolidation. In addition, Kennedy Wilson evaluates its relationships with other entities to identify whether they are variable interest entities ("VIE") as defined by Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Subtopic 810 – Consolidation and to assess whether it is the primary beneficiary of such entities. In determining whether Kennedy Wilson is the primary beneficiary of a VIE, qualitative and quantitative factors are considered, including, but not limited to: the amount and characteristics of Kennedy Wilson's investment; the obligation or likelihood for Kennedy Wilson to provide financial support; Kennedy Wilson's ability to control or significantly influence key decisions for the VIE; and the similarity with and significance to the business activities of Kennedy Wilson. Significant judgments related to these determinations include estimates about the future fair values and performance of real estate held by these VIEs and general market conditions.
USE OF ESTIMATES	The preparation of the accompanying consolidated financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions about future events. These estimates and the underlying assumptions affect the amounts of assets and liabilities reported, disclosure about contingent assets and liabilities, and reported amounts of revenues and expenses. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic environment, which management believes to be reasonable under the circumstances. Management adjusts such estimates and assumptions when facts and circumstances dictate. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates. Changes in those estimates will be reflected in the financial statements in future periods.
REVENUE RECOGNITION	Revenue consists of management and leasing fees (including performance fees), commissions, rental and hotel income, sales of real estate and loan income. Management fees are primarily comprised of investment management, property services, and research fees. Investment management fees are earned from limited partners of funds, co-investments, or separate accounts and are generally based on a fixed percentage of committed capital or net asset value. Property services fees are earned for managing the operations of real estate assets and are generally based on a fixed percentage of the revenues generated from the respective real estate assets. Research fees are earned from consulting arrangements. These fees are recognized as revenue ratably over the period that the respective services are performed. The Company provides investment management and property services on investments it also has an ownership interest in. Fees earned on consolidated properties are eliminated in consolidation and fees on unconsolidated investments are eliminated for the portion that relate to the Company's ownership interest. During the year ended December 31, 2017 , $26.3 million were eliminated in consolidation. KWE was externally managed by one of the Company's wholly-owned subsidiaries (“KWE Manager”) pursuant to an investment management agreement in which capacity Kennedy Wilson was entitled to receive certain management and performance fees. KWE Manager was paid an annual management fee (payable quarterly in arrears) equal to 1% of KWE’s adjusted net asset value (EPRA NAV). The management fee payable to KWE Manager was paid half in cash and half in shares of KWE. KW Manager earned $16.0 million in management fees for the year ended December 31, 2017 which is eliminated in consolidation due to the Company's consolidation of KWE. Performance fees or carried interest are allocated to the general partner, special limited partner or asset manager of Kennedy Wilson's real estate funds and loan pool participations based on the cumulative performance of the fund and loan pools and are subject to preferred return thresholds of the limited partners and participants. At the end of each reporting period, Kennedy Wilson calculates the performance fee that would be due as if the fair value of the underlying investments were realized as of such date, irrespective of whether such amounts have been realized. As the fair value of underlying investments varies between reporting periods, it is necessary to make adjustments to amounts recorded as performance fees to reflect either (a) positive performance resulting in an increase in the performance fee allocated to the general partner or asset manager or (b) negative performance that would cause the amount due to Kennedy Wilson to be less than the amount previously recognized as revenue, resulting in a negative adjustment to performance fees allocated to the general partner or asset manager. Substantially all of the performance fees are recognized in investment management fees in our consolidated statements of operations . Total performances fees recognized to date through December 31, 2017 that may be reversed in future periods if there is negative fund performance totaled $32.9 million . Performance fees recognized during the years ended December 31, 2017 , 2016 , and 2015 were $5.6 million , $13.0 million and $18.0 million and the amounts that have not been received are included in other assets in the accompanying consolidated balance sheet. Commissions primarily consist of acquisition fees, auction and real estate sales commissions, leasing commissions, and consulting fees. Acquisition fees are earned for identifying and closing investments on behalf of investors and are based on a fixed percentage of the acquisition price. Acquisition fees are recognized upon the successful completion of an acquisition after all required services have been performed. In the case of auction and real estate sales commissions, the revenue is generally recognized when escrow closes. In accordance with the guidelines established for Reporting Revenue Gross as a Principal versus Net as an Agent in the ASC Subtopic 605-45, Kennedy Wilson records commission revenues and expenses on a gross basis. Of the criteria listed in the Subtopic 605-45, Kennedy Wilson is the primary obligor in the transaction, does not have inventory risk, performs all or part of the service, has credit risk, and has wide latitude in establishing the price of services rendered and discretion in selection of agents and determination of service specifications. Leasing fees that are payable upon tenant occupancy, payment of rent or other events beyond Kennedy Wilson's control are recognized upon the occurrence of such events. Rental income from operating leases is generally recognized on a straight-line basis over the terms of the leases. Hotel income is earned when rooms are occupied or goods and services have been delivered or rendered. Sales of real estate are recognized when title to the real property passes to the buyer and there is no continuing involvement in the real property. Kennedy Wilson follows the requirements for profit recognition as set forth by the Sale of Real Estate ASC Subtopic 360-20. Interest income from investments in loans acquired at a discount are recognized using the effective interest method. Interest income from investments in loans which Kennedy Wilson originates are recognized at the stated interest rate. When a loan or loans are acquired with deteriorated credit quality primarily for the rewards of collateral ownership, such loans are accounted for as loans until Kennedy Wilson is in possession of the collateral. However, accrual of income is not recorded during the conversion period under ASC Subtopic 310-30-25. Income is recognized to the extent that cash is received from the loan.
REAL ESTATE ACQUISITIONS	The purchase price of acquired properties is recorded to land, buildings and building improvements and intangible lease value (value of above-market and below-market leases, acquired in-place lease values, and tenant relationships, if any) based on their respective estimated fair values in accordance with Business Combinations ASC Subtopics 805-10. Acquisition-related costs are expensed as incurred. The valuations of real estate are based on management estimates of the real estate assets using income and market approaches. The indebtedness securing the real estate are valued, in part, based on third party valuations and management estimates also using an income approach.
UNCONSOLIDATED INVESTMENTS	Kennedy Wilson has a number of joint venture interests that were formed to acquire, manage, and/or sell real estate and invest in loan pools and discounted loan portfolios. Investments in unconsolidated investments are accounted for under the equity method of accounting as Kennedy Wilson can exercise significant influence, but does not have the ability to control the unconsolidated investment. An investment in an unconsolidated investment is recorded at its initial investment and is increased or decreased by Kennedy Wilson’s share of income or loss, plus additional contributions and less distributions. A decline in the value of an unconsolidated investment that is other than temporary is recognized when evidence indicates that such a decline has occurred in accordance with Equity Method Investments ASC Subtopic 323-10. Profits on the sale of real estate held by unconsolidated investments in which Kennedy Wilson has continuing involvement are deferred until such time that the continuing involvement has been concluded and all the risks and rewards of ownership have passed to the buyer. Profit on sales to unconsolidated investments in which Kennedy Wilson retains an equity ownership interest results in partial sales treatment in accordance with Sale of Real Estate ASC Subtopic 360-20, thus deferring a portion of the gain as a result of Kennedy Wilson’s continuing ownership percentage in the unconsolidated investment. Kennedy Wilson records its investments in certain commingled funds it manages and sponsors ("the Funds") that are investment companies under the Investment Companies ASC Subtopic 946-10, based upon the net assets that would be allocated to its interests in the Funds assuming the Funds were to liquidate their investments at fair value as of the reporting date. Thus, the Funds reflect their investments at fair value, with unrealized gains and losses resulting from changes in fair value reflected in their earnings. Kennedy Wilson has retained the specialized accounting for the Funds pursuant to Retention of Specialized Accounting for Investments in Consolidation ASC Subtopic 323-10 in recording its equity in joint venture income from the Funds. Additionally, Kennedy Wilson elected the fair value option for seventeen investments in unconsolidated investment entities. Due to the nature of these investments, Kennedy Wilson elected to record these investments at fair value in order to report the value in the underlying investments in the results of our current operations.
DISTRIBUTIONS FROM UNCONSOLIDATED INVESTMENTS	The Company utilizes the "look-through" approach, distributions are reported under operating cash flow unless the facts and circumstances of a specific distribution clearly indicate that it is a return of capital (e.g., a liquidating dividend or distribution of the proceeds from unconsolidated investments' sale of assets), in which case it is reported as an investing activity. This enables Kennedy Wilson to look to the nature and source of the distribution received and classify it appropriately between operating and investing activities on the statement of cash flows based upon the source.
FAIR VALUE MEASUREMENTS	Kennedy Wilson accounts for fair value measurements of financial assets and financial liabilities and for fair value measurements of non-financial items that are recognized or disclosed at fair value in the financial statements on a recurring basis under the provisions of Fair Value Measurements ASC Subtopic 820-10. Subtopic 820-10 defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When estimating fair value in the absence of an orderly transaction between market participants, valuations of real estate are based on management estimates of the real estate assets using income and market approaches. The indebtedness securing the real estate and the investments in debt securities are valued, in part, based on third party valuations and management estimates also using an income approach.
FAIR VALUE OF FINANCIAL INSTRUMENTS	The estimated fair value of financial instruments is determined using available market information and appropriate valuation methodologies. Considerable judgment, however, is necessary to interpret market data and develop the related estimates of fair value. Accordingly, the estimates presented herein are not necessarily indicative of the amounts that could be realized upon disposition of the financial instruments. The use of different market assumptions or estimation methodologies may have a material impact on the estimated fair value amounts.
NONCONTROLLING INTERESTS	Noncontrolling interests are reported within equity as a separate component of Kennedy Wilson's equity in accordance with Noncontrolling Interests in Consolidated Financial Statements ASC Subtopic 810-10. Revenues, expenses, gains, losses, net income or loss, and other comprehensive income are reported in the consolidated statements of operations at the consolidated amounts and net income and comprehensive income attributable to noncontrolling interests are separately stated. Management fees earned by KWE Manager for managing KWE were eliminated in consolidation however the amount attributable to the noncontrolling interest holders of KWE were recognized through net income (loss) attributable to noncontrolling interest holders.
FOREIGN CURRENCIES	The financial statements of subsidiaries located outside the United States are measured using the local currency as the functional currency. The assets and liabilities of these subsidiaries are translated at the rates of exchange at the balance sheet date, and income and expenses are translated at the average monthly rate. The foreign currencies include the Euro and the British pound sterling. Cumulative translation adjustments, to the extent not included in cumulative net income, are included in the consolidated statements of equity and comprehensive income as a component of accumulated other comprehensive income. The Company hedges its investments in foreign subsidiaries with forward and option contracts as discussed below. At December 31, 2017 , approximately 49% of our investment account is invested through our foreign platforms in their local currencies. Investment level debt and operational costs of our platforms are generally incurred in local currencies. Fluctuations in foreign exchanges rates may have a significant impact on the results of our operations. In order to manage the effect of these fluctuations, we generally hedge our book equity exposure to foreign currencies through currency forward contracts and options. We typically hedge 50% - 100% of the book equity exposure to these foreign currencies.
DERIVATIVE INSTRUMENTS AND HEDING ACTIVITIES	Kennedy Wilson has derivatives to reduce its exposure to foreign currencies. All derivative instruments are recognized as either assets or liabilities in the balance sheet at their respective fair values. For derivatives designated in hedging relationships, changes in fair value of cash flow hedges or net investment hedges are recognized in accumulated other comprehensive income, to the extent the derivative is effective at offsetting the changes in the item being hedged until the hedged item affects earnings.
GOODWILL	Goodwill results from the difference between the purchase price and the fair value of net assets acquired based upon the purchase method of accounting for business combinations. In accordance with Accounting for Goodwill ASC Subtopic 350-20, goodwill is reviewed for impairment on an annual basis. The Company performs its annual review of impairment at year end and when a triggering event occurs between annual year end reviews.
CASH AND CASH EQUIVALENTS	Cash and cash equivalents consist of cash and all highly liquid investments purchased with maturities of three months or less. Cash and cash equivalents are invested in institutions insured by government agencies. Certain accounts contain balances in excess of the insured limits. Kennedy Wilson's operations and financial position are affected by fluctuations in currency exchange rates between the euro and British pound sterling against the U.S. Dollar.
LONG-LIVED ASSETS	Kennedy Wilson reviews its long-lived assets (excluding goodwill) whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable in accordance with Impairment of Long-Lived Assets ASC Subtopic 360-10. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated undiscounted future cash flows, an impairment charge is recognized in the amount by which the carrying amount of the asset exceeds the fair value of the asset. Assets to be disposed of are presented separately in the balance sheet and reported at the lower of the carrying amount or fair value less costs to sell, and are no longer depreciated. The assets and liabilities of the assets to be disposed of are classified as held for sale and would be presented separately in the appropriate asset and liability sections of the balance sheet.
ACCOUNTS RECEIVABLE	Accounts receivable are recorded at the contractual amount as determined by the underlying agreements and do not bear interest. An allowance for doubtful accounts is provided when Kennedy Wilson determines there are probable credit losses in Kennedy Wilson’s existing accounts receivable and is determined based on historical experience. Kennedy Wilson reviews its accounts receivable for probable credit losses on a quarterly basis.
CONCENTRATION OF CREDIT RISK	Financial instruments that subject Kennedy Wilson to credit risk consist primarily of accounts and notes receivable, cash equivalents and derivative instruments. Credit risk is generally diversified due to the large number of entities composing Kennedy Wilson’s customer base and their geographic dispersion throughout the United States, the United Kingdom, Ireland, Spain, Italy and Japan. Kennedy Wilson performs ongoing credit evaluations of its customers and debtors.
EARNINGS PER SHARE	Basic earnings per share is computed based upon the weighted average number of shares of common stock outstanding during the periods presented. Diluted earnings per share is computed based upon the weighted average number of shares of common stock and potentially dilutive securities outstanding during the periods presented. The dilutive impact of potentially dilutive securities including convertible securities, and unvested stock which were outstanding during the period. Unvested stock are calculated by the “treasury stock” method and the convertible securities under the "if converted" method.
COMPREHENSIVE (LOSS) INCOME	Comprehensive (loss) income consists of net income (loss) and other comprehensive income (loss). In the accompanying consolidated balance sheets, accumulated other comprehensive income consists of foreign currency translation adjustments and unrealized gains (losses) on available for sale securities and derivative instruments.
REPURCHASE OF EQUITY INSTRUMENTS	Upon the decision to retire repurchased equity instruments, Kennedy Wilson records the retirement as a reduction to additional paid in capital for the amount that shares were initially issued at with the excess paid going to retained earnings.
SHARE-BASED PAYMENT ARRANGEMENTS	Kennedy Wilson accounts for its share-based payment arrangements under the provisions of Share-Based Payments ASC Subtopic 718-10 . Compensation cost for employee service received in exchange for an award of equity instruments is based on the grant-date fair value of the share-based award that is ultimately settled in equity of Kennedy Wilson. The cost of employee services is recognized over the period during which an employee provides service in exchange for the share-based payment award. Share-based payment arrangements with only services conditions that vest ratably over the requisite service period are recognized on the straight-line basis and performance awards that vest ratably are recognized on a tranche by tranche basis over the performance period.
INCOME TAXES	Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. In accordance with Accounting for Uncertainty in Income Taxes ASC Subtopic 740-10, Kennedy Wilson recognizes the effect of income tax positions only if those positions are more likely than not of being sustained. Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. Kennedy Wilson records interest related to unrecognized tax benefits in interest expense and penalties in general and administrative expenses.
RECENT ACCOUNTING PRONOUNCEMENTS	In February 2015, the FASB issued ASU 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis and was adopted by Kennedy Wilson on January 1, 2016. The new standard makes certain changes to both the variable interest model and the voting model, including changes to (1) the identification of variable interests (fees paid to a decision maker or service provider), (2) the variable interest entity characteristics for a limited partnership or similar entity and (3) the primary beneficiary determination. The adoption of ASU 2015-02 did not result in any changes to the Company's conclusions regarding the consolidation of investments under the new standard. The Company identified several entities, already consolidated under the previous standard but not considered VIEs, which under the new standard, are considered VIEs and will continue to be consolidated. KWE was determined to be a VIE under the new standard as were nine other less significant consolidated investments, all with the same partner and sharing similar legal structures. However, because the Company's analysis concludes that the Company is the primary beneficiary of those entities, they continue to be consolidated. In April 2015, the FASB issued ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs , to reduce the complexity of financial statement presentation pursuant to which debt issuance costs will be presented as a direct deduction from the carrying amount of debt liabilities as opposed to a deferred charge recognized as an asset. ASU 2015-03 is required to be adopted for fiscal years beginning after December 15, 2015. ASU 2015-03 became effective for Kennedy Wilson beginning January 1, 2016. The adoption of this standard did not have a material impact on the consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) , which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e., lessees and lessors). The new standard requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase by the lessee. This classification will determine whether lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease. A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term of greater than 12 months regardless of their classification. Leases with a term of 12 months or less will be accounted for similar to existing guidance for operating leases today. The new standard requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales-type leases, direct financing leases and operating leases. ASU 2016-02 is required to be adopted for fiscal years beginning after December 15, 2018. Because Kennedy Wilson's existing operating lease commitments are not material and the accounting for leases by the lessor is substantially unchanged, the Company does not expect the ASU to have a significant impact on its results of operations or financial position. In March 2016, the FASB issued ASU 2016-07, Simplifying the Transition to the Equity Method of Accounting , which eliminates the requirement for an investor to retroactively apply the equity method when its increase in ownership interest (or degree of influence) in an investee triggers equity method accounting. ASU 2016-07 is effective for all entities in fiscal years beginning after December 15, 2016. The Company does not expect the ASU to have a significant impact on Kennedy Wilson's consolidated financial statements. On March 30, 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting , which is intended to improve the accounting for share-based payment transactions as part of the FASB’s simplification initiative. The ASU changes seven aspects of the accounting for share-based payment award transactions, including: (1) accounting for income taxes; (2) classification of excess tax benefits on the statement of cash flows; (3) forfeitures; (4) minimum statutory tax withholding requirements; (5) classification of employee taxes paid on the statement of cash flows when an employer withholds shares for tax-withholding purposes; (6) practical expedient - expected term (nonpublic only); and (7) intrinsic value (nonpublic only). ASU 2016-09 requires excess tax benefits and deficiencies to be recognized as a component of income tax expense rather than equity. An excess tax benefit (windfall) arises when the value of the share-based award on the vesting date is higher than the fair value on the grant date. A tax deficiency (shortfall) arises when the fair value on vesting date is lower than the fair value on the grant date. In addition, ASU 2016-09 eliminated the requirement for excess tax benefits from share-based compensation to reduce current taxes payable prior to being recognized in the financial statement. The inclusion of excess tax benefits and deficiencies as a component of our income tax expense will increase volatility within the Company’s tax provision for income taxes as the amount of excess tax benefits or deficiencies from stock-based compensation awards is from now on dependent upon the Company’s stock price on the date the awards vest. On January 1, 2017, Kennedy Wilson adopted ASU 2016-09 under the modified retrospective approach and recorded the cumulative impact of the accounting change through a reduction to the accumulated deficit of $9.3 million . This amount represents the cumulative excess tax benefits related to share-based compensation as of December 31, 2016 which had not been reflected as a deferred tax asset. As a result of adoption of ASU 2016-09, the excess tax benefits were reclassified to net operating loss carryover, resulting in an increase in our deferred tax asset by $9.3 million as of January 1, 2017. In August 2016, the FASB issued ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments , which addresses eight classification issues related to the statement of cash flows: (a) debt prepayment or debt extinguishment costs, (b) settlement of zero-coupon bonds, (c) contingent consideration payments made after a business combination (d) proceeds from the settlement of insurance claims, (e) proceeds from the settlement of corporate-owned life insurance policies, including bank-owned life insurance policies, (f) distributions received from equity method investees, (g) beneficial interests in securitization transactions, and (h) separately identifiable cash flows and application of the predominance principle. ASU 2016-15 is required to be adopted for public entities for fiscal years beginning after December 15, 2017. The Company does not expect the ASU to have a significant impact on Kennedy Wilson's consolidated financial statements. In November 2016, the FASB issue ASU 2016-18, Statement of Cash Flows: Restricted Cash, which clarifies how restricted cash and restricted cash equivalents should be presented on the statement of cash flows. The new guidance requires entities to include restricted cash and restricted cash equivalents as a component of the beginning and ending cash and cash equivalent balances on the statement of cash flows. ASU 2016-18 is required to be adopted for public entities for fiscal years beginning after December 15, 2017. The Company does not expect the ASU to have a significant impact on Kennedy Wilson's consolidated financial statements. In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business. The ASU clarifies the definition of a business. The three elements of a business (inputs, processes, and outputs) has not changed, however, the amendment provides a framework to assist entities in evaluating whether these elements are present. The amended framework is not expected to materially impact the Company’s financial statements. However, the amendment also includes a provision that when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. Therefore, real estate acquisitions generally will no longer be considered a business and consequently not be accounted for under Topic 805. The Company has evaluated the likely impacts noting that (1) acquisition related costs will no longer be expensed as incurred and (2) regardless of the market value of a property at the acquisition date, acquisition related gains will no longer be recorded. ASU 2017-01 is required to be adopted for public entities for fiscal years beginning after December 15, 2017. In January 2017, the FASB issued ASU 2017-04, which requires an entity to no longer perform a hypothetical purchase price allocation to measure goodwill impairment. Instead, impairment will be measured using the difference between the carrying amount and the fair value of the reporting unit. ASU 2017-04 is required to be adopted for public entities that are SEC filers, for annual and interim periods in fiscal years beginning after December 15, 2019. T he Company does not expect the ASU to have a significant impact on Kennedy Wilson's consolidated financial statements. In August 2017, the FASB issued ASU 2017-12 which changes the recognition and presentation requirements of hedge accounting, including: eliminating the requirement to separately measure and report hedge ineffectiveness, and presenting all items that affect earnings in the same income statement line item as the hedged item. The ASU also provides new alternatives for (a) applying hedge accounting to additional hedging strategies, (b) measuring the hedged item in fair value hedges of interest rate risk, (c) reducing the cost and complexity of applying hedge accounting by easing the requirements for effectiveness testing, hedge documentation and application of the critical terms match method, and (d) reducing the risk of material error correction if a company applies the shortcut method inappropriately. This ASU is effective for public business entities, for annual and interim periods in fiscal years beginning after December 15, 2018. T he Company does not expect the ASU to have a significant impact on Kennedy Wilson's consolidated financial statements. The FASB did not issue any other ASUs during the year ended December 31, 2017 that the Company expects to be applicable and have a material impact on the Company's financial position or results of operations.
RECLASSIFICATIONS	Certain balances included in prior years' financial statements have been reclassified to conform with the current year's presentation.

REAL ESTATE AND ACQUIRED IN P34

REAL ESTATE AND ACQUIRED IN PLACE LEASE VALUE (Tables)	12 Months Ended
	Dec. 31, 2017
Real Estate [Abstract]
Schedule of Investments in Consolidated Properties	The following table summarizes the Company's investment in consolidated real estate properties at December 31, 2017 and 2016 : December 31, (Dollars in millions) 2017 2016 Land $ 1,509.4 $ 1,383.2 Buildings 4,558.0 4,048.7 Building improvements 511.2 373.5 Acquired in-place lease values 417.3 383.1 6,995.9 6,188.5 Less accumulated depreciation and amortization (552.2 ) (374.3 ) Real estate and acquired in place lease values, net of depreciation and amortization $ 6,443.7 $ 5,814.2 During the years ended December 31, 2017, 2016 and 2015, Kennedy Wilson recognized the following gains on sale of real estate. (Dollars in millions) Gain on sale of real estate Year ended December 31, Description Consolidated (1) NCI Net of NCI 2017 Three multifamily properties and one retail center in the Western U.S., one commercial development and three commercial properties in Ireland, one residential property in the United Kingdom, 25 commercial properties across the United Kingdom and Ireland, two condo unit sales in Spain and a residential property in Spain $ 258.0 $ 43.3 $ 214.7 2016 One commercial property in Japan, one commercial property, one development project, one condo unit, a vacant lot and a parcel of land in the Western U.S. and 44 commercial properties across the United Kingdom and Ireland 137.9 82.6 55.3 2015 Japanese multifamily portfolio, one retail pad and one condo unit in the Western U.S. 73.5 43.0 30.5 (1) Includes both the sale of real estate as a business, which is recognized through gain on sale of real estate, and the sale of real estate as assets, which is the net of sale of real estate and cost of real estate sold
Schedule of Business Acquisitions	During the year ended December 31, 2017 , Kennedy Wilson acquired the following consolidated properties: (Dollars in millions) Preliminary Purchase Price Allocation at Acquisition (1) Location Description Land Building Acquired in-place lease values (2) Investment debt NCI KWH Shareholders' Equity Western U.S. Two retail centers, six multifamily and one commercial property $ 99.3 $ 427.9 $ 24.1 $ 312.3 $ 3.8 $ 235.1 Ireland One development project, one office and one multifamily 28.7 58.8 — — 4.9 83.8 $ 128.0 $ 486.7 $ 24.1 $ 312.3 $ 8.7 $ 318.9 (1) Excludes acquisition expenses and net other assets. The purchase price allocations for properties acquired during the year ended December 31, 2017 are based on preliminary measurements of fair value that are subject to change. These allocations represent the Company's current best estimates of fair value and will be finalized within one year. (2) Includes above- and below-market leases in this table. Above- and below-market leases are part of other assets and accrued expenses and other liabilities. During the year ended December 31, 2016 , Kennedy Wilson acquired the following consolidated properties: (Dollars in millions) Preliminary Purchase Price Allocation at Acquisition (1) Location Description Land Building Acquired in place lease values (2) Investment debt NCI (3) KWH Shareholders' Equity Western U.S. Three retail centers, six multifamily and two residential properties (5) $ 124.6 $ 360.2 $ 8.7 $ 295.8 $ 2.0 $ 195.7 United Kingdom Portfolio of 10 office properties and two commercial property (4) 44.0 88.4 18.0 — 118.1 32.3 Ireland Three commercial properties and one development property (4) 25.3 84.9 5.8 — 91.6 24.4 Spain One development project and one supermarket (4) 1.9 17.1 0.3 — 15.3 4.0 $ 195.8 $ 550.6 $ 32.8 $ 295.8 $ 227.0 $ 256.4 (1) Excludes acquisition expenses and net other assets. The purchase price allocations for properties acquired during the year ended December 31, 2017 are based on preliminary measurements of fair value that are subject to change. These allocations represent the Company's current best estimates of fair value. (2) Includes above and below market leases in this table. Above and below market leases are part of other assets and accrued expenses and other liabilities. (3) Noncontrolling interest amounts associated with acquisition. (4) This portfolio of properties was directly acquired by KWE. Kennedy Wilson owned approximately 23.6% of the total issued share capital of KWE as of December 31, 2016. On October 20, 2017, Kennedy Wilson successfully completed its acquisition of KWE. KWE became a wholly-owned subsidiary of Kennedy Wilson. (5) During the year ended December 31, 2016, a property included within this group was accounted for under the equity method. Kennedy Wilson purchased the equity partner interest and consolidated the property resulting in an acquisition-related gain of $8.6 million . Additionally, Kennedy Wilson purchased equity partners' interests and consolidated a development project in Kona, HI that was previously accounted for as an equity method investment resulting in an acquisition related gain of $7.6 million . Subsequently, Kennedy Wilson sold an equity interest in the development project, resulting in shared control, and, accordingly, the Company accounts for its investment under the equity method.
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	Consolidations - 2015 The following table summarizes the assets and liabilities assumed as a result of gaining control of these properties and the acquisition-related gains recognized: (Dollars in millions) Property Type Location Cash Real estate and acquired in-place lease values Accounts receivable and other assets Accounts payable, accrued expenses, and other liabilities Investment debt Noncontrolling interests Acquisition related gain (1) 1,468 units across multiple properties Multifamily Western US $ 2.9 $ 283.6 $ 0.8 $ 3.9 $ 166.0 $ 0.5 $ 46.5 490K sq. ft. across multiple properties Commercial Western US 7.8 234.7 2.5 6.0 97.9 5.0 37.9 $ 10.7 $ 518.3 $ 3.3 $ 9.9 $ 263.9 $ 5.5 $ 84.4 (1) $2.3 million was allocated to noncontrolling interest for the portion the acquisition related gain that relates to our equity partners ownership in the properties. Consolidations - 2016 The following table summarizes the assets and liabilities assumed as a result of gaining control of these properties and the acquisition-related gains recognized: (Dollars in millions) Property Type Location Cash Real estate and acquired in-place lease values Accounts receivable and other assets Accounts payable, accrued expenses, and other liabilities Investment debt Noncontrolling interests Acquisition related gain Development project in Hawaii Hotel Western US $ — $ 76.3 $ 5.9 $ 1.0 $ — $ — $ 7.6 One retail center Commercial Western US 0.8 46.5 — 0.4 29.0 1.8 8.6 $ 0.8 $ 122.8 $ 5.9 $ 1.4 $ 29.0 $ 1.8 $ 16.2
Schedule of Business Acquisition, Pro Forma Information	The unaudited pro forma data presented below assumes that the acquisitions during the year ended December 31, 2017 occurred as of January 1, 2016 . Unaudited Year Ended December 31, (Dollars in millions, except for per share data) 2017 2016 Pro forma revenues $ 835.0 $ 740.2 Pro forma net income 150.1 99.5 Pro forma net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders 111.9 24.8 Pro forma net income per share: Basic $ 0.94 $ 0.23 Diluted $ 0.94 $ 0.23

UNCONSOLIDATED INVESTMENTS (Tab

UNCONSOLIDATED INVESTMENTS (Tables)	12 Months Ended
	Dec. 31, 2017
Equity Method Investments and Joint Ventures [Abstract]
Schedule of Joint Ventures by Investment Type and Geographic Location	The following table details Kennedy Wilson's investments in joint ventures by investment type and geographic location as of December 31, 2017 : (Dollars in millions) Multifamily Commercial Funds Residential and Other Total Western U.S. $ 199.7 $ 39.4 $ 55.1 $ 179.8 $ 474.0 United Kingdom — 9.9 — — 9.9 Spain — — — — — Japan 2.5 — — — 2.5 Total $ 202.2 $ 49.3 $ 55.1 $ 179.8 $ 486.4 The following table details our investments in joint ventures by investment type and geographic location as of December 31, 2016 : (Dollars in millions) Multifamily Commercial Funds Residential and Other Total Western U.S. $ 168.6 $ 51.6 $ 47.0 $ 252.6 $ 519.8 United Kingdom — 13.8 — — 13.8 Spain — — — 15.9 15.9 Japan 6.1 — — — 6.1 Total $ 174.7 $ 65.4 $ 47.0 $ 268.5 $ 555.6
Schedule of Income (Loss) from Unconsolidated Investments	The following table presents income from unconsolidated investments recognized by Kennedy Wilson during the years ended December 31, 2017 , 2016 and 2015: Year Ended December 31, (Dollars in millions) 2017 2016 2015 Equity in joint venture income $ 30.4 $ 70.5 $ 58.2 Equity in joint venture income - fair value 38.6 56.6 34.9 Interest (loss) income recognized (1) — (0.5 ) 4.3 $ 69.0 $ 126.6 $ 97.4 (1) Related to loan pools, all of which were fully resolved as of December 31, 2017 .
Schedule of Interest Income and Foreign Currency Gain (Loss) Recognized in Loan Pool Participations	The following table presents income from unconsolidated investments recognized by Kennedy Wilson during the years ended December 31, 2017 , 2016 and 2015: Year Ended December 31, (Dollars in millions) 2017 2016 2015 Equity in joint venture income $ 30.4 $ 70.5 $ 58.2 Equity in joint venture income - fair value 38.6 56.6 34.9 Interest (loss) income recognized (1) — (0.5 ) 4.3 $ 69.0 $ 126.6 $ 97.4 (1) Related to loan pools, all of which were fully resolved as of December 31, 2017 .
Schedule of New Joint Venture Investments	See the table below for a breakdown of contributions to new joint venture investments for the years ended December 31, 2017 , 2016 and 2015: Years Ended December 31, ( Dollars in millions ) 2017 2016 2015 Investment Type Region No. of Properties Initial Contribution No. of Properties Initial Contribution No. of Properties Initial Contribution Multifamily Western U.S. 5 $ 13.9 1 $ 19.9 31 $ 80.5 Commercial Western U.S. — — 1 13.4 1 9.1 Residential Western U.S. — — 1 1.0 4 1.4 Residential Japan — — — — 50 6.2 Other Western U.S. 2 1.8 1 2.1 1 2.0 Total 7 $ 15.7 4 $ 36.4 87 $ 99.2
Schedule of Cash Distributions by Investment Type and Geographic Location	The following table details cash distributions by investment type and geographic location for the year ended December 31, 2017 : Multifamily Commercial Funds Residential and Other Total (Dollars in millions) Operating Investing Operating Investing Operating Investing Operating Investing Operating Investing Western U.S. $ 26.1 $ 26.1 $ 6.5 $ 15.3 $ 4.0 $ 5.7 $ 42.6 $ 64.1 $ 79.2 $ 111.2 United Kingdom — — 2.3 — — — — — 2.3 — Spain — — — — — — 4.0 17.3 4.0 17.3 Japan 0.2 4.9 — — — — — — 0.2 4.9 Total $ 26.3 $ 31.0 $ 8.8 $ 15.3 $ 4.0 $ 5.7 $ 46.6 $ 81.4 $ 85.7 $ 133.4

FAIR VALUE MEASUREMENTS AND T36

FAIR VALUE MEASUREMENTS AND THE FAIR VALUE OPTION (Tables)	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Schedule of Fair Value Measurements	The following table presents fair value measurements (including items that are required to be measured at fair value and items for which the fair value option has been elected) as of December 31, 2017 : (Dollars in millions) Level 1 Level 2 Level 3 Total Unconsolidated investments $ — $ — $ 346.1 $ 346.1 Marketable securities 7.5 — — 7.5 Net currency derivative contracts — (100.9 ) — (100.9 ) Total $ 7.5 $ (100.9 ) $ 346.1 $ 252.7 The following table presents fair value measurements (including items that are required to be measured at fair value and items for which the fair value option has been elected) as of December 31, 2016 : (Dollars in millions) Level 1 Level 2 Level 3 Total Unconsolidated investments $ — $ — $ 329.4 $ 329.4 Marketable securities 7.5 — — 7.5 Net currency derivative contracts — (47.2 ) — (47.2 ) Total $ 7.5 $ (47.2 ) $ 329.4 $ 289.7
Schedule of Investments in Joint Ventures Held at Fair Value	The following table summarizes the Company's investments in unconsolidated investments held at fair value by type: (Dollars in millions) December 31, 2017 December 31, 2016 FV Option $ 291.0 $ 282.4 Funds 55.1 47.0 Total $ 346.1 $ 329.4
Schedule of Changes in Level 3 Investments	The following table presents changes in Level 3 investments, investments in investment companies and investments in joint ventures that elected the fair value option, for the years ended December 31: (Dollars in millions) 2017 2016 2015 Beginning balance $ 329.4 $ 223.8 $ 95.2 Unrealized and realized gains 53.2 65.7 42.3 Unrealized and realized losses (1.1 ) — (0.1 ) Contributions 58.1 76.3 128.5 Distributions (117.0 ) (75.3 ) (41.0 ) Other 23.5 38.9 (1.1 ) Ending Balance $ 346.1 $ 329.4 $ 223.8
Schedule of the Funds and Fair Value Option Investments, Significant Inputs	The table below describes the range of inputs used as of December 31, 2017 for real estate assets: Estimated Rates Used For Capitalization Rates Discount Rates Office 4.50% — 7.25% 6.75% — 8.00% Retail 5.75% — 9.50% 7.25% — 11.50% Multifamily 4.75% — 7.75% 8.00% — 9.75% Residential N/A 6.00% — 12.00% Hotel 6.50% 10.50%
Schedule of Currency Forward Contracts	The table below details the currency forward contracts and currency option contracts Kennedy Wilson had as of December 31, 2017 : (Dollars in millions) December 31, 2017 Year Ended December 31, 2017 Currency Hedged Underlying Currency Notional Hedge Asset Hedge Liability Change in Unrealized Gains (Losses) Realized Gains (Losses) Cash Received (Paid) Outstanding EUR USD € 130.0 $ 0.3 $ (7.1 ) $ (10.7 ) $ — $ — EUR (1) GBP € 360.0 — (77.0 ) (17.7 ) — — EUR (1)(2) GBP — — — (22.0 ) — — GBP USD £ 540.7 2.1 (19.2 ) (20.4 ) — (0.4 ) GBP (3) USD — — — — (10.8 ) — Total Outstanding 2.4 (103.3 ) (70.8 ) (10.8 ) (0.4 ) Settled EUR (4) USD — — (1.8 ) 1.8 — Yen USD — — — — (0.1 ) GBP USD — — (5.4 ) 0.2 (2.7 ) Total Settled — — (7.2 ) 2.0 (2.8 ) Total $ 2.4 $ (103.3 ) $ (78.0 ) $ (8.8 ) $ (3.2 ) (1) Hedge is held by KWE on its wholly-owned subsidiaries. (2) Relates to KWE's Euro Medium Term Note. See discussion in Note 8. (3) Relates to derivative arrangements on GBP escrow cash that is held by Kennedy Wilson relating to the KWE Transaction. Hedges were non-designated so changes in value went through statement of operations. Derivative losses are offset by realized foreign currency exchange gains on translation of cash. After the transaction hedges were re-designated as net investment hedges on Kennedy Wilson's investment in KWE and subsequent changes will go through other comprehensive income. Please review results together with foreign currency movements in Note 13. (4) Underlying investment was sold by Kennedy Wilson. Historical amounts within other comprehensive income were reclassified to the statement of operations at time of sale.

OTHER ASSETS (Tables)

OTHER ASSETS (Tables)	12 Months Ended
	Dec. 31, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Schedule of Other Assets	Other assets consist of the following: December 31, (Dollars in millions) 2017 2016 Above-market leases, net of accumulated amortization of $44.3 million and $28.1 million at December 31, 2017 and 2016, respectively $ 63.1 $ 72.4 Development project asset 55.3 — Office furniture and equipment net of accumulated depreciation of $35.8 million and $24.4 million at December 31, 2017 and 2016, respectively 44.3 25.4 Accrued performance fees 32.9 27.3 Straight line rent 24.0 11.7 Goodwill 23.9 23.9 Prepaid expenses 13.3 10.2 Other, net of accumulated amortization of $2.6 million and $2.3 million at December 31, 2017 and 2016, respectively 10.7 10.0 Leasing commissions, net of accumulated amortization of $2.2 million and $1.7 million at December 31, 2017 and 2016, respectively 10.1 7.4 Marketable securities 7.5 7.5 VAT receivable 5.0 23.2 Deposits 3.5 1.8 Hedge assets 2.4 20.2 Deferred tax asset, net — 28.4 Other Assets $ 296.0 $ 269.4

MORTGAGE DEBT (Tables)

MORTGAGE DEBT (Tables)	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Schedule of Mortgage Loans Payable	The following table details mortgage debt secured by Kennedy Wilson's consolidated properties as of December 31, 2017 and 2016: (Dollars in millions) Carrying amount of investment debt as of December 31, (1) Investment Debt by Product Type Region 2017 2016 Multifamily (1) Western U.S. $ 1,227.5 $ 1,180.8 Commercial (1)(2) United Kingdom 583.2 616.9 Commercial (1)(2) Ireland 505.0 331.5 Commercial Western U.S. 370.6 290.2 Multifamily (1)(2) Ireland 263.2 159.3 Commercial (2) Spain 95.5 84.4 Hotel Ireland 86.4 75.7 Hotel Western U.S. 49.1 49.8 Mortgage debt (excluding loan fees) (1)(2) 3,180.5 2,788.6 Unamortized loan fees (23.9 ) (18.2 ) Total Investment Debt $ 3,156.6 $ 2,770.4 (1) The investment debt payable balances include unamortized debt premiums (discounts). Debt premiums (discounts) represent the difference between the fair value of debt and the principal value of debt assumed in various acquisitions and are amortized into interest expense over the remaining term of the related debt in a manner that approximates the effective interest method. The unamortized loan premium as of December 31, 2017 and 2016 was $2.4 million and $5.0 million , respectively. (2) KWE is a wholly-owned subsidiary as of December 31, 2017 . Kennedy Wilson owned approximately 23.6% of the total issued share capital of KWE as of December 31, 2016.
Schedule of Maturities of Mortgage Loans and Notes Payable	The aggregate maturities of mortgage loans subsequent to December 31, 2017 are as follows: (Dollars in millions) Aggregate Maturities 2018 $ 67.7 2019 356.6 2020 164.3 2021 159.4 2022 434.9 Thereafter 1,995.2 3,178.1 Debt premium 2.4 Unamortized loan fees (23.9 ) Total Investment Debt $ 3,156.6

KW UNSECURED DEBT (Tables)

KW UNSECURED DEBT (Tables)	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Schedule of Debt KW Unsecured Debt	The following table details KW unsecured debt as of December 31, 2017 and 2016: December 31, (Dollars in millions) 2017 2016 Credit Facility $ 300.0 $ — Senior Notes (1) 898.1 952.8 KW Unsecured Debt 1,198.1 952.8 Unamortized loan fees (18.7 ) (18.7 ) Total KW Unsecured Debt $ 1,179.4 $ 934.1 (1) The senior notes balances include unamortized debt premiums (discounts). Debt premiums (discounts) represent the difference between the fair value of debt and the principal value of debt assumed in various acquisitions and are amortized into interest expense over the remaining term of the related debt in a manner that approximates the effective interest method. The unamortized loan premium (discount) as of December 31, 2017 and 2016 was $(1.9) million and $(2.2) million , respectively. The following table details KWE unsecured bonds as of December 31, 2017 and 2016: December 31, (Dollars in millions) 2017 2016 KWE Bonds $ 675.6 $ 616.8 KWE Euro Medium Term Note Programme 655.7 575.6 KWE Unsecured Bonds (excluding loan fees) (1)(2) 1,331.3 1,192.4 Unamortized loan fees (5.4 ) (6.7 ) Total KWE Unsecured Bonds $ 1,325.9 $ 1,185.7 (1) The KWE unsecured bonds balances include unamortized debt premiums (discounts). Debt premiums (discounts) represent the difference between the fair value of debt and the principal value of debt assumed in various acquisitions and are amortized into interest expense over the remaining term of the related debt in a manner that approximates the effective interest method. The unamortized loan premium (discount) as of December 31, 2017 and 2016 was $(4.3) million and $(4.1) million , respectively. (2) KWE is a wholly-owned subsidiary as of December 31, 2017 . Kennedy Wilson owned approximately 23.6% of the total issued share capital of KWE as of December 31, 2016.

KWE UNSECURED BONDS (Tables)

KWE UNSECURED BONDS (Tables)	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Schedule of KWE Bonds	The following table details KW unsecured debt as of December 31, 2017 and 2016: December 31, (Dollars in millions) 2017 2016 Credit Facility $ 300.0 $ — Senior Notes (1) 898.1 952.8 KW Unsecured Debt 1,198.1 952.8 Unamortized loan fees (18.7 ) (18.7 ) Total KW Unsecured Debt $ 1,179.4 $ 934.1 (1) The senior notes balances include unamortized debt premiums (discounts). Debt premiums (discounts) represent the difference between the fair value of debt and the principal value of debt assumed in various acquisitions and are amortized into interest expense over the remaining term of the related debt in a manner that approximates the effective interest method. The unamortized loan premium (discount) as of December 31, 2017 and 2016 was $(1.9) million and $(2.2) million , respectively. The following table details KWE unsecured bonds as of December 31, 2017 and 2016: December 31, (Dollars in millions) 2017 2016 KWE Bonds $ 675.6 $ 616.8 KWE Euro Medium Term Note Programme 655.7 575.6 KWE Unsecured Bonds (excluding loan fees) (1)(2) 1,331.3 1,192.4 Unamortized loan fees (5.4 ) (6.7 ) Total KWE Unsecured Bonds $ 1,325.9 $ 1,185.7 (1) The KWE unsecured bonds balances include unamortized debt premiums (discounts). Debt premiums (discounts) represent the difference between the fair value of debt and the principal value of debt assumed in various acquisitions and are amortized into interest expense over the remaining term of the related debt in a manner that approximates the effective interest method. The unamortized loan premium (discount) as of December 31, 2017 and 2016 was $(4.3) million and $(4.1) million , respectively. (2) KWE is a wholly-owned subsidiary as of December 31, 2017 . Kennedy Wilson owned approximately 23.6% of the total issued share capital of KWE as of December 31, 2016.

INCOME TAXES (Tables)

INCOME TAXES (Tables)	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Schedule of Income before Income Tax, Domestic and Foreign	The table below represents a geographical breakdown of book income (loss) before the provision for income taxes: Year ended December 31, (Dollars in millions) 2017 2016 2015 Domestic $ 90.6 $ 33.9 $ 61.2 Foreign 31.1 56.6 51.2 Total $ 121.7 $ 90.5 $ 112.4
Schedule of (Benefit from) Provision for Income Taxes	The U.S. and foreign components of (benefit from) provision for income taxes consisted of the following components. However, it is not reflective of the cash tax results of the Company. Year ended December 31, (Dollars in millions) 2017 2016 2015 Federal Current $ (0.3 ) $ (0.8 ) $ 0.2 Deferred (17.9 ) 17.0 13.2 (18.2 ) 16.2 13.4 State Current 0.1 0.1 — Deferred (3.1 ) 2.8 0.3 (3.0 ) 2.9 0.3 Foreign Current 8.4 5.8 31.9 Deferred (3.5 ) (10.9 ) 7.8 4.9 (5.1 ) 39.7 Total $ (16.3 ) $ 14.0 $ 53.4
Reconciliation of the Statutory Federal Income Tax Rate	A reconciliation of the statutory federal income tax rate of 35% with Kennedy Wilson’s effective income tax rate is as follows: Year ended December 31, (Dollars in millions) 2017 2016 2015 Tax computed at the statutory rate $ 42.6 $ 31.7 $ 39.3 Tax Reform federal rate change (44.8 ) — — Tax deduction in excess of book compensation from restricted stock vesting (3.7 ) — — Foreign permanent differences, primarily non-deductible depreciation, amortization and acquisition-related expenses in the United Kingdom 6.1 6.5 13.7 Sale of KWR, investment basis difference — — 10.6 Effect of foreign tax operations, net of foreign tax credits 1.6 1.1 (3.8 ) Noncontrolling interests (15.0 ) (25.8 ) (2.8 ) Adjustment to investment basis — — 1.4 Non-vested stock expense — — 1.0 State income taxes, net of federal benefit (3.8 ) 2.8 (1.5 ) Other 0.7 (2.3 ) (4.5 ) Provision for (benefit from) income taxes $ (16.3 ) $ 14.0 $ 53.4
Schedule of Deferred Tax Assets and Liabilities	Cumulative tax effects of temporary differences are shown below at December 31, 2017 and 2016 : Year ended December 31, (Dollars in millions) 2017 2016 Deferred tax assets: Foreign currency translation $ 11.9 $ 131.9 Net operating loss carryforward and credits 103.7 85.2 Stock option expense 5.2 19.5 Hedging transactions 8.1 — Marketable securities 0.1 0.4 Accrued reserves 0.1 0.1 Total deferred tax assets 129.1 237.1 Valuation allowance (32.7 ) (29.9 ) Net deferred tax assets 96.4 207.2 Deferred tax liabilities: Investment basis, depreciation, amortization and reserve differences 119.8 157.6 Hedging transactions — 5.0 Prepaid expenses and other 9.2 13.9 Capitalized interest 1.4 2.3 Total deferred tax liabilities 130.4 178.8 Deferred tax asset (liability), net $ (34.0 ) $ 28.4

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Tables)	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Schedule of Future Minimum Rental Payments for Operating Leases	Future minimum lease payments under scheduled operating leases that have initial or remaining noncancelable terms in excess of one year are as follows: (Dollars in millions) Year ending December 31, 2018 $ 2.8 2019 2.1 2020 1.8 2021 1.4 2022 1.2 Thereafter 0.4 Total minimum payments $ 9.7

STOCK COMPENSATION PLANS (Table

STOCK COMPENSATION PLANS (Tables)	12 Months Ended
	Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Nonvested Share Activity	The following table sets forth activity under the Equity Plan and Amended and Restated Plan: Shares Nonvested at December 31, 2015 6,274,345 Granted 1,006,750 Vested (1,526,731 ) Forfeited (31,900 ) Nonvested at December 31, 2016 5,722,464 Granted 1,756,750 Vested (3,285,671 ) Forfeited (57,000 ) Nonvested at December 31, 2017 4,136,543

EQUITY (Tables)

EQUITY (Tables)	12 Months Ended
	Dec. 31, 2017
Equity [Abstract]
Schedule of Dividends Declared and Paid	Kennedy Wilson declared and paid the following cash dividends on its common and preferred stock: (Dollars in millions) Year Ended December 31, 2017 Year Ended December 31, 2016 Declared Paid Declared Paid Preferred Stock Series B (1) — — 2.8 2.8 Total Preferred Stock — — 2.8 2.8 Common Stock 87.4 59.2 63.9 62.0 Total (2) $ 87.4 $ 59.2 $ 66.7 $ 64.8 (1) The decrease in Series B dividends during the current year is due to the early conversion of the Series B preferred stock during the fourth quarter of 2016. See discussion above. (2) The difference between declared and paid is the amount accrued on the consolidated balance sheets.
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table summarizes the changes in each component of accumulated other comprehensive income (loss) ("AOCI"), net of taxes: (Dollars in millions) Foreign Currency Translation Foreign Currency Derivative Contracts Marketable Securities Total Accumulated Other Comprehensive Income Balance at December 31, 2016 $ (98.6 ) $ 27.5 $ (0.1 ) $ (71.2 ) Unrealized gains (losses), arising during the period 212.4 (76.2 ) 0.3 136.5 Amounts reclassified out of AOCI during the period 3.1 (1.1 ) — 2.0 Taxes on unrealized (losses) gains, arising during the period (57.1 ) 7.9 (0.1 ) (49.3 ) Noncontrolling interest (106.4 ) 19.7 — (86.7 ) Balance (of Kennedy Wilson's share) at December 31, 2017 $ (46.6 ) $ (22.2 ) $ 0.1 $ (68.7 )

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	12 Months Ended
	Dec. 31, 2017
Earnings Per Share [Abstract]
Schedule of basic and diluted earnings per share	The following table sets forth the computation of basic and diluted earnings per share: Year ended December 31, (Dollars in millions, except share amounts and per share data) 2017 2016 2015 Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 100.5 $ 2.8 $ 71.1 Net income and dividends allocated to participating securities (1.1 ) (1.7 ) (2.9 ) Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders, net of allocation to participating securities 99.4 1.1 68.2 Dividends declared on common shares (86.5 ) (62.3 ) (51.1 ) Undistributed earnings (losses) attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 12.9 $ (61.2 ) $ 17.1 Distributed earnings per share $ 0.70 $ 0.56 $ 0.48 Undistributed earnings (losses) per share 0.13 (0.55 ) 0.18 Income per basic 0.83 0.01 0.66 Income per diluted $ 0.83 $ 0.01 $ 0.66 Weighted-average shares outstanding for basic 119,147,192 109,094,530 103,261,513 Weighted average shares outstanding for diluted 119,147,192 109,094,530 109,553,728 Dividends declared per common share $ 0.70 $ 0.56 $ 0.48

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2017
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	The following tables summarize the income and expense activity by segment for the years ended December 31, 2017 , 2016 and 2015 and total assets as of December 31, 2017 and 2016 . Year Ended December 31, (Dollars in millions) 2017 2016 2015 Investments Rental $ 504.7 $ 485.9 $ 404.8 Hotel 127.5 116.2 106.4 Sale of real estate 111.5 29.3 3.7 Loans and other income 15.2 12.6 19.5 Total revenue 758.9 644.0 534.4 Depreciation and amortization (212.2 ) (198.2 ) (166.3 ) Operating Expenses (433.8 ) (345.2 ) (283.3 ) Income from unconsolidated investments 66.4 122.8 93.6 Operating Income 179.3 223.4 178.4 Gain on sale of real estate 226.7 130.7 72.4 Acquisition-related gains — 16.2 108.1 Acquisition-related expenses (4.4 ) (9.5 ) (37.3 ) Interest expense (145.6 ) (137.4 ) (108.8 ) Other (5.1 ) (1.2 ) (2.5 ) Income before benefit from income taxes 250.9 222.2 210.3 (Provision for) benefit from income taxes (4.8 ) 5.0 (23.4 ) Net income 246.1 227.2 186.9 Net (income) loss attributable to the non-controlling interests (37.5 ) (70.9 ) 15.3 Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 208.6 $ 156.3 $ 202.2 Year Ended December 31, (Dollars in millions) 2017 2016 2015 Investment Management and Real Estate Services Investment management, property services, and research fees (includes $20.8, $28.9, and $37.8 million of related party fees, respectively) $ 51.7 $ 59.4 $ 69.3 Total revenue 51.7 59.4 69.3 Depreciation and amortization (0.3 ) — — Operating expenses (54.3 ) (54.9 ) (69.7 ) Income from unconsolidated investments 2.6 3.8 3.8 Net Income (0.3 ) 8.3 3.4 Net loss attributable to the noncontrolling interests — — 0.4 Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ (0.3 ) $ 8.3 $ 3.8 Year Ended December 31, (Dollars in millions) 2017 2016 2015 Corporate Operating expenses $ (70.2 ) $ (93.6 ) $ (53.4 ) Operating loss (70.2 ) (93.6 ) (53.4 ) Interest expense (72.1 ) (54.2 ) (47.9 ) Other 13.4 7.8 — Loss before benefit from (provision for) income taxes (128.9 ) (140.0 ) (101.3 ) Benefit from (provision for) income taxes 21.1 (19.0 ) (30.0 ) Net loss (107.8 ) (159.0 ) (131.3 ) Preferred dividends and accretion of preferred stock issuance costs — (2.8 ) (3.6 ) Net loss attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ (107.8 ) $ (161.8 ) $ (134.9 ) Year Ended December 31, (Dollars in millions) 2017 2016 2015 Consolidated Rental $ 504.7 $ 485.9 $ 404.8 Hotel 127.5 116.2 106.4 Sale of real estate 111.5 29.3 3.7 Investment management, property services, and research fees (includes $20.8, $28.9, and $37.8 million of related party fees, respectively) 51.7 59.4 69.3 Loans purchases, loan originations, and other 15.2 12.6 19.5 Total revenue 810.6 703.4 603.7 Operating expenses 558.3 493.7 406.4 Depreciation and amortization 212.5 198.2 166.3 Total operating expenses 770.8 691.9 572.7 Income from unconsolidated investments 69.0 126.6 97.4 Operating income 108.8 138.1 128.4 Gain on sale of real estate 226.7 130.7 72.4 Acquisition-related gains — 16.2 108.1 Acquisition-related expenses (4.4 ) (9.5 ) (37.3 ) Interest expense (217.7 ) (191.6 ) (156.7 ) Other 8.3 6.6 (2.5 ) Income before benefit from (provision for) income taxes 121.7 90.5 112.4 Benefit from (provision for) income taxes 16.3 (14.0 ) (53.4 ) Net income 138.0 76.5 59.0 Net (income) loss attributable to the noncontrolling interests (37.5 ) (70.9 ) 15.7 Preferred dividends and accretion of preferred stock issuance costs — (2.8 ) (3.6 ) Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 100.5 $ 2.8 $ 71.1 December 31, (Dollars in millions) 2017 2016 Assets Investments $ 7,563.7 $ 7,375.5 Services 70.5 78.1 Corporate 90.6 203.0 Total assets $ 7,724.8 $ 7,656.6 December 31, (Dollars in millions) 2017 2016 2015 Expenditures for long lived assets Investments $ (814.3 ) $ (949.6 ) $ (1,927.6 )
Schedule of Revenue, by Geographical Areas	The revenue shown in the table below is allocated based upon the country in which services are performed. Year Ended December 31, (Dollars in millions) 2017 2016 2015 United States $ 316.3 $ 304.1 $ 229.3 Europe 493.3 397.2 361.1 Japan 1.0 2.1 13.3 Total revenue $ 810.6 $ 703.4 $ 603.7

GUARANTOR AND NON-GUARANTOR F47

GUARANTOR AND NON-GUARANTOR FINANCIAL STATEMENTS (Tables)	12 Months Ended
	Dec. 31, 2017
Guarantor and Nonguarantor Financial Statements [Abstract]
Condensed Consolidating Balance Sheet	CONDENSED CONSOLIDATING BALANCE SHEET AS OF DECEMBER 31, 2017 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Assets Cash and cash equivalents $ — $ 33.4 $ 54.9 $ 263.0 $ — $ 351.3 Accounts receivable — 0.9 10.1 51.7 — 62.7 Loan purchases and originations — — 5.8 78.9 — 84.7 Real estate and acquired in place lease values, net of accumulated depreciation and amortization — — 1,750.0 4,693.7 — 6,443.7 Unconsolidated investments — 20.2 298.3 167.9 — 486.4 Investments in and advances to consolidated subsidiaries 1,394.5 2,642.1 1,629.4 — (5,666.0 ) — Other assets — — 73.1 222.9 — 296.0 Total assets $ 1,394.5 $ 2,696.6 $ 3,821.6 $ 5,478.1 $ (5,666.0 ) $ 7,724.8 Liabilities Accounts Payable — 0.8 2.5 16.2 — 19.5 Accrued expenses and other liabilities 28.9 121.9 39.7 275.4 465.9 Mortgage debt — — 1,137.3 2,019.3 3,156.6 KW unsecured debt — 1,179.4 — — — 1,179.4 KWE unsecured bonds — — — 1,325.9 — 1,325.9 Total liabilities 28.9 1,302.1 1,179.5 3,636.8 — 6,147.3 Equity Kennedy-Wilson Holdings, Inc. shareholders' equity 1,365.6 1,394.5 2,642.1 1,629.4 (5,666.0 ) 1,365.6 Noncontrolling interests — — — 211.9 — 211.9 Total equity 1,365.6 1,394.5 2,642.1 1,841.3 (5,666.0 ) 1,577.5 Total liabilities and equity $ 1,394.5 $ 2,696.6 $ 3,821.6 $ 5,478.1 $ (5,666.0 ) $ 7,724.8 CONDENSED CONSOLIDATING BALANCE SHEET AS OF DECEMBER 31, 2016 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Assets Cash and cash equivalents $ — $ 106.0 $ 45.4 $ 734.3 $ — $ 885.7 Accounts receivable — — 10.2 33.8 — 44.0 Loan purchases and originations — 0.3 12.1 75.3 — 87.7 Real estate and acquired in place lease values, net of accumulated depreciation and amortization — — 1,482.5 4,331.7 — 5,814.2 Unconsolidated investments — 18.8 380.0 156.8 — 555.6 Investments in and advances to consolidated subsidiaries 1,063.8 2,073.1 1,171.7 — (4,308.6 ) — Other assets — 0.2 66.9 202.3 — 269.4 Total assets $ 1,063.8 $ 2,198.4 $ 3,168.8 $ 5,534.2 $ (4,308.6 ) $ 7,656.6 Liabilities Accounts Payable $ — $ 0.5 $ 1.6 $ 9.1 $ — $ 11.2 Accrued expenses and other liabilities 15.8 200.0 157.2 39.1 — 412.1 Mortgage debt — — 936.8 1,833.6 — 2,770.4 KW unsecured debt — 934.1 — — — 934.1 KWE unsecured bonds — — — 1,185.7 — 1,185.7 Total liabilities 15.8 1,134.6 1,095.6 3,067.5 — 5,313.5 Equity Kennedy-Wilson Holdings, Inc. shareholders' equity 1,048.0 1,063.8 2,073.2 1,171.6 (4,308.6 ) 1,048.0 Noncontrolling interests — — — 1,295.1 — 1,295.1 Total equity 1,048.0 1,063.8 2,073.2 2,466.7 (4,308.6 ) 2,343.1 Total liabilities and equity $ 1,063.8 $ 2,198.4 $ 3,168.8 $ 5,534.2 $ (4,308.6 ) $ 7,656.6
Consolidating Statement of Operations	CONSOLIDATING STATEMENT OF OPERATIONS FOR THE YEAR ENDED DECEMBER 31, 2017 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Revenue Rental $ — $ — $ 143.9 $ 360.8 $ — $ 504.7 Hotel — — — 127.5 — 127.5 Sale of real estate — — 2.3 109.2 — 111.5 Investment management, property services, and research fees — — 43.4 8.3 — 51.7 Loan purchases, loan originations, and other — — 0.5 14.7 — 15.2 Total revenue — — 190.1 620.5 — 810.6 Operating expenses Rental operating — — 54.7 96.5 — 151.2 Hotel operating — — — 100.3 — 100.3 Cost of real estate sold — — 1.8 78.4 — 80.2 Commission and marketing — — 7.0 0.2 — 7.2 Compensation and related 38.4 78.3 52.8 7.7 — 177.2 General and administrative — 14.0 17.6 10.6 — 42.2 Depreciation and amortization — 1.4 50.1 161.0 — 212.5 Total operating expenses 38.4 93.7 184.0 454.7 — 770.8 Income from unconsolidated investments — 3.7 33.0 32.3 — 69.0 Income from consolidated subsidiaries 176.4 307.5 256.2 — (740.1 ) — Operating income 138.0 217.5 295.3 198.1 (740.1 ) 108.8 Non-operating income (expense) Gain on sale of real estate — — 46.6 180.1 — 226.7 Acquisition-related gains — — — — — — Acquisition-related expenses — — (1.3 ) (3.1 ) — (4.4 ) Interest expense — (72.1 ) (38.0 ) (107.6 ) — (217.7 ) Other income — 9.9 1.6 (3.2 ) — 8.3 Income before provision from income taxes 138.0 155.3 304.2 264.3 (740.1 ) 121.7 Benefit from (provision for) income taxes — 21.1 3.3 (8.1 ) — 16.3 Net income 138.0 176.4 307.5 256.2 (740.1 ) 138.0 Net loss attributable to the noncontrolling interests — — — (37.5 ) — (37.5 ) Net income attributable to Kennedy-Wilson Holdings, Inc. 138.0 176.4 307.5 218.7 (740.1 ) 100.5 Preferred dividends and accretion of preferred stock issuance costs — — — — — — Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 138.0 $ 176.4 $ 307.5 $ 218.7 $ (740.1 ) $ 100.5 CONSOLIDATING STATEMENT OF OPERATIONS FOR THE YEAR ENDED DECEMBER 31, 2016 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Revenue Rental $ — $ — $ 114.0 $ 371.9 $ — $ 485.9 Hotel — — — 116.2 — 116.2 Sale of real estate — — 12.2 17.1 — 29.3 Investment management, property services, and research fees — — 53.7 5.7 — 59.4 Loan purchases, loan originations, and other — 0.1 1.1 11.4 — 12.6 Total revenue — 0.1 181.0 522.3 — 703.4 Operating expenses Rental operating — — 48.7 86.7 — 135.4 Hotel operating — — — 96.3 — 96.3 Cost of real estate sold — — 9.6 12.5 — 22.1 Commission and marketing — — 7.3 0.7 — 8.0 Compensation and related 65.1 66.4 47.5 7.5 — 186.5 General and administrative — 15.9 16.3 13.2 — 45.4 Depreciation and amortization — 1.3 39.5 157.4 — 198.2 Total operating expenses 65.1 83.6 168.9 374.3 — 691.9 Income from unconsolidated investments — 5.6 64.0 57.0 — 126.6 Income from consolidated subsidiaries 141.6 285.1 204.9 — (631.6 ) — Operating income 76.5 207.2 281.0 205.0 (631.6 ) 138.1 Non-operating income (expense) Gain on sale of real estate — — 19.6 111.1 — 130.7 Acquisition-related gains — — 7.6 8.6 — 16.2 Acquisition-related expenses — — (2.3 ) (7.2 ) — (9.5 ) Interest expense — (54.2 ) (25.4 ) (112.0 ) — (191.6 ) Other income (loss) — 7.7 (2.7 ) 1.6 — 6.6 Income before benefit from income taxes 76.5 160.7 277.8 207.1 (631.6 ) 90.5 Provision for income taxes — (19.1 ) 7.3 (2.2 ) — (14.0 ) Net income 76.5 141.6 285.1 204.9 (631.6 ) 76.5 Net income attributable to the noncontrolling interests — — — (70.9 ) — (70.9 ) Net income attributable to Kennedy-Wilson Holdings, Inc. 76.5 141.6 285.1 134.0 (631.6 ) 5.6 Preferred dividends and accretion of preferred stock issuance costs (2.8 ) — — — — (2.8 ) Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 73.7 $ 141.6 $ 285.1 $ 134.0 $ (631.6 ) $ 2.8 CONSOLIDATING STATEMENT OF OPERATIONS FOR THE YEAR ENDED DECEMBER 31, 2015 ( Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries (1) Non-guarantor Subsidiaries Elimination Consolidated Total Revenue Rental — — 65.4 339.4 — 404.8 Hotel — — — 106.4 — 106.4 Sale of real estate — — — 3.7 — 3.7 Investment management, property services, and research fees — — 66.1 3.2 — 69.3 Loan purchases, loan originations, and other — 0.1 1.2 18.2 — 19.5 Total revenue — 0.1 132.7 470.9 — 603.7 Operating expenses Rental operating — — 25.3 82.7 — 108.0 Hotel operating — — — 89.9 — 89.9 Cost of real estate sold — — — 2.6 — 2.6 Commission and marketing — 1.6 4.6 1.1 — 7.3 Compensation and related 30.8 50.1 65.4 8.5 — 154.8 General and administrative — 15.0 16.7 12.1 — 43.8 Depreciation and amortization — 0.8 20.8 144.7 — 166.3 Total operating expenses 30.8 67.5 132.8 341.6 — 572.7 Income from unconsolidated investments — 0.4 79.3 17.7 — 97.4 Income from consolidated subsidiaries 89.8 220.1 95.9 — (405.8 ) — Operating income 59.0 153.1 175.1 147.0 (405.8 ) 128.4 Non-operating income (expense) Gain on sale of real estate — — 0.1 72.3 — 72.4 Acquisition-related gains — — 70.0 38.1 — 108.1 Acquisition-related expenses — (0.8 ) (0.7 ) (35.8 ) — (37.3 ) Interest expense — (47.9 ) (15.8 ) (93.0 ) — (156.7 ) Other income (loss) — 1.0 (1.7 ) (1.8 ) — (2.5 ) Income before provision for income taxes 59.0 105.4 227.0 126.8 (405.8 ) 112.4 Provision for income taxes — (15.6 ) (6.9 ) (30.9 ) — (53.4 ) Net income 59.0 89.8 220.1 95.9 (405.8 ) 59.0 Net income attributable to the noncontrolling interests — — — 15.7 — 15.7 Net income attributable to Kennedy-Wilson Holdings, Inc. 59.0 89.8 220.1 111.6 (405.8 ) 74.7 Preferred dividends and accretion of preferred stock issuance costs (3.6 ) — — — — (3.6 ) Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 55.4 $ 89.8 $ 220.1 $ 111.6 $ (405.8 ) $ 71.1
Consolidated Statement of Comprehensive Income	CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME FOR THE YEAR ENDED DECEMBER 31, 2017 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Net income (loss) $ 138.0 $ 176.4 $ 307.5 $ 256.2 $ (740.1 ) $ 138.0 Other comprehensive income (loss), net of tax: Unrealized gain on marketable securities 0.2 0.2 — — (0.2 ) 0.2 Unrealized foreign currency translation gain 155.3 155.3 30.6 458.7 (644.6 ) 155.3 Amounts reclassified from accumulated other comprehensive income 2.0 2.0 — 2.0 (4.0 ) 2.0 Unrealized forward contract forward currency loss (68.3 ) (68.3 ) (21.9 ) (46.4 ) 136.6 (68.3 ) Total other comprehensive income for the period $ 89.2 $ 89.2 $ 8.7 $ 414.3 $ (512.2 ) $ 89.2 Comprehensive income 227.2 265.6 316.2 670.5 (1,252.3 ) 227.2 Comprehensive income attributable to noncontrolling interests — — — (124.2 ) — (124.2 ) Comprehensive income attributable to Kennedy-Wilson Holdings, Inc. $ 227.2 $ 265.6 $ 316.2 $ 546.3 $ (1,252.3 ) $ 103.0 CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME FOR THE YEAR ENDED DECEMBER 31, 2016 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Net income (loss) $ 76.5 $ 141.6 $ 285.1 $ 204.9 $ (631.6 ) $ 76.5 Other comprehensive income (loss), net of tax: Unrealized gain on marketable securities 0.1 0.1 — — (0.1 ) 0.1 Unrealized foreign currency translation loss (164.1 ) (164.1 ) (23.1 ) (161.9 ) 349.1 (164.1 ) Amounts reclassified from accumulated other comprehensive income 3.4 3.4 — 3.4 (6.8 ) 3.4 Unrealized forward contract forward currency (loss) gain (100.1 ) (100.1 ) 21.3 (121.4 ) 200.2 (100.1 ) Total other comprehensive (loss) income for the period (260.7 ) (260.7 ) (1.8 ) (279.9 ) 542.4 (260.7 ) Comprehensive income (loss) $ (184.2 ) $ (119.1 ) $ 283.3 $ (75.0 ) $ (89.2 ) $ (184.2 ) Comprehensive loss attributable to noncontrolling interests — — — 166.3 — 166.3 Comprehensive income (loss) attributable to Kennedy-Wilson Holdings, Inc. $ (184.2 ) $ (119.1 ) $ 283.3 $ 91.3 $ (89.2 ) $ (17.9 ) CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME FOR THE YEAR ENDED DECEMBER 31, 2015 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Net income (loss) $ 59.0 $ 89.8 $ 220.1 $ 95.9 $ (405.8 ) $ 59.0 Other comprehensive loss, net of tax: Unrealized gain on marketable securities 0.1 0.1 — — (0.1 ) 0.1 Unrealized foreign currency translation gain (loss) (138.3 ) (138.3 ) (13.6 ) (29.6 ) 181.5 (138.3 ) Amounts reclassified from accumulated other comprehensive income 9.7 9.7 (0.6 ) 10.3 (19.4 ) 9.7 Unrealized forward contract forward currency gain (loss) 6.3 6.3 11.5 (5.2 ) (12.6 ) 6.3 Total other comprehensive loss for the period (122.2 ) (122.2 ) (2.7 ) (24.5 ) 149.4 (122.2 ) Comprehensive (loss) income $ (63.2 ) $ (32.4 ) $ 217.4 $ 71.4 $ (256.4 ) $ (63.2 ) Comprehensive loss attributable to noncontrolling interests — — — 118.4 — 118.4 Comprehensive income (loss) attributable to Kennedy-Wilson Holdings, Inc. $ (63.2 ) $ (32.4 ) $ 217.4 $ 189.8 $ (256.4 ) $ 55.2
Condensed Consolidated Statements of Cash Flows	CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS FOR THE YEAR ENDED DECEMBER 31, 2017 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Consolidated Total Net cash provided by operating activities $ (15.3 ) $ (182.8 ) $ (51.4 ) $ 322.5 $ 73.0 Cash flows from investing activities: Collections of loans — — 6.4 10.5 16.9 Net proceeds from sale of real estate — — 130.8 528.3 659.1 Purchases of and additions to real estate — — (422.5 ) (391.8 ) (814.3 ) Investment in marketable securities — — (0.8 ) — (0.8 ) Proceeds from sale of marketable securities — — 1.1 — 1.1 Investing distributions from unconsolidated investments — — 95.2 38.2 133.4 Contributions to unconsolidated investments — — (49.8 ) (30.1 ) (79.9 ) Proceeds from settlement of foreign currency derivative contracts — (2.8 ) — — (2.8 ) Purchases of foreign currency derivative contracts — (0.4 ) — — (0.4 ) Additions to development project asset — — — (19.4 ) (19.4 ) Proceeds from development project asset — — — 36.9 36.9 (Investments in) distributions from consolidated subsidiaries, net 198.0 (126.2 ) 166.3 (238.1 ) — Net cash (used in) provided by investing activities 198.0 (129.4 ) (73.3 ) (65.5 ) (70.2 ) Cash flow from financing activities: Repayment of senior notes payable — (55.0 ) — — (55.0 ) Costs associated with KWE Transaction (55.8 ) — — — (55.8 ) Borrowings under lines of credit — 800.0 — — 800.0 Repayment of lines of credit — (500.0 ) — — (500.0 ) Borrowings under investment debt — — 239.5 608.8 848.3 Repayment of investment debt — — (103.4 ) (581.3 ) (684.7 ) Debt issue costs — (5.4 ) (1.9 ) (2.2 ) (9.5 ) Repurchase of common stock (67.7 ) — — — (67.7 ) Cash paid to acquire noncontrolling interest in KWE — — — (719.8 ) (719.8 ) Dividends paid (59.2 ) — — — (59.2 ) Acquisitions of noncontrolling interests — — — (3.3 ) (3.3 ) Contributions from noncontrolling interests — — — 47.4 47.4 Distributions to noncontrolling interests — — — (106.0 ) (106.0 ) Net cash provided by (used in) financing activities (182.7 ) 239.6 134.2 (756.4 ) (565.3 ) Effect of currency exchange rate changes on cash and cash equivalents — — — 28.1 28.1 Net change in cash and cash equivalents — (72.6 ) 9.5 (471.3 ) (534.4 ) Cash and cash equivalents, beginning of year — 106.0 45.4 734.3 885.7 Cash and cash equivalents, end of year $ — $ 33.4 $ 54.9 $ 263.0 $ 351.3 CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS FOR THE YEAR ENDED DECEMBER 31, 2016 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Consolidated Total Net cash (used in) provided by operating activities: $ (0.2 ) $ (207.9 ) $ 102.2 $ 208.8 $ 102.9 Cash flows from investing activities: Additions to loans — (11.6 ) (4.5 ) — (16.1 ) Collections of loans — 6.6 4.9 135.4 146.9 Net proceeds from sale of real estate — — 109.2 430.9 540.1 Purchases of and additions to real estate — — (404.2 ) (545.4 ) (949.6 ) Investment in marketable securities — — (3.2 ) — (3.2 ) Investing distributions from unconsolidated investments — 54.5 35.1 89.6 Contributions to unconsolidated investments — (1.0 ) (104.4 ) (19.5 ) (124.9 ) Proceeds from settlement of foreign currency derivative contracts — 38.6 — — 38.6 Purchases of foreign currency derivative contracts — (8.1 ) — — (8.1 ) (Investments in) distributions from consolidated subsidiaries, net 129.8 (36.9 ) (95.4 ) 2.5 — Net cash (used in) provided by investing activities 129.8 (12.4 ) (443.1 ) 39.0 (286.7 ) Cash flow from financing activities: Borrowings under senior notes payable — 250.0 — — 250.0 Borrowings under lines of credit — 125.0 — — 125.0 Repayment of lines of credit — (125.0 ) — — (125.0 ) Borrowings under investment debt — — 530.9 658.8 1,189.7 Repayment of investment debt — — (179.5 ) (428.6 ) (608.1 ) Debt issue costs — (3.9 ) (2.1 ) (4.8 ) (10.8 ) Repurchase of common stock (64.8 ) — — — (64.8 ) Dividends paid (64.8 ) — — — (64.8 ) Acquisitions of noncontrolling interests — — — (196.9 ) (196.9 ) Contributions from noncontrolling interests — — — 42.1 42.1 Distributions from noncontrolling interests — — — (116.6 ) (116.6 ) Net cash provided by financing activities (129.6 ) 246.1 349.3 (46.0 ) 419.8 Effect of currency exchange rate changes on cash and cash equivalents — — — (81.9 ) (81.9 ) Net change in cash and cash equivalents — 25.8 8.4 119.9 154.1 Cash and cash equivalents, beginning of year — 80.2 37.0 614.4 731.6 Cash and cash equivalents, end of year $ — $ 106.0 $ 45.4 $ 734.3 $ 885.7 CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS FOR THE YEAR ENDED DECEMBER 31, 2015 ( Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Consolidated Total Net cash provided by (used in) operating activities: $ 5.3 $ 67.4 $ 105.4 $ 0.1 $ 178.2 Cash flows from investing activities: Additions to loans — (41.0 ) — (194.8 ) (235.8 ) Settlements of loans — — 8.8 19.0 27.8 Net proceeds from sale of real estate — — — 622.6 622.6 Purchases of and additions to real estate — — (220.3 ) (1,707.3 ) (1,927.6 ) Nonrefundable escrow deposits — — — (3.8 ) (3.8 ) Investment in marketable securities — — (5.0 ) — (5.0 ) Proceeds from sale of marketable securities — — 6.2 — 6.2 Distributions from unconsolidated investments — — 83.1 96.9 180.0 Contributions to unconsolidated investments — (2.9 ) (81.5 ) (99.9 ) (184.3 ) Proceeds from settlement of foreign currency derivative contracts — 23.4 — 18.1 41.5 Purchases of foreign currency derivative contracts — (3.6 ) — (1.6 ) (5.2 ) (Investments in) distributions from consolidated subsidiaries, net (157.1 ) 128.4 (40.0 ) 68.7 — Net cash (used in) provided by investing activities (157.1 ) 104.3 (248.7 ) (1,182.1 ) (1,483.6 ) Cash flow from financing activities: Borrowings under lines of credit — 95.0 — — 95.0 Repayment of lines of credit — (220.0 ) — — (220.0 ) Borrowings under investment debt — — 168.1 1,919.8 2,087.9 Repayment of investment debt — — (7.4 ) (673.7 ) (681.1 ) Debt issuance costs — (4.7 ) (1.4 ) (15.6 ) (21.7 ) Issuance of common stock 215.0 — — — 215.0 Repurchase of common stock (11.4 ) — — — (11.4 ) Dividends paid (51.8 ) — — — (51.8 ) Acquisitions of noncontrolling interests — — — (68.4 ) (68.4 ) Contributions from noncontrolling interests — — — 14.5 14.5 Distributions from noncontrolling interests — — — (239.2 ) (239.2 ) Net cash provided by (used in) financing activities 151.8 (129.7 ) 159.3 937.4 1,118.8 Effect of currency exchange rate changes on cash and cash equivalents — — — (19.5 ) (19.5 ) Net change in cash and cash equivalents — 42.0 16.0 (264.1 ) (206.1 ) Cash and cash equivalents, beginning of year — 38.2 21.0 878.5 937.7 Cash and cash equivalents, end of year $ — $ 80.2 $ 37.0 $ 614.4 $ 731.6

UNAUDITED QUARTERLY INFORMATI48

UNAUDITED QUARTERLY INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Schedule of Quarterly Financial Information	(Dollars in millions, except earnings per share amounts) Year ended December 31, 2017 Fourth Quarter Third Quarter Second Quarter First Quarter Revenues $ 181.5 $ 277.2 $ 177.8 $ 174.2 Operating expenses 206.0 231.2 178.3 155.4 Income from unconsolidated investments 20.2 12.9 13.4 22.6 Operating (loss) income (4.3 ) 58.9 12.9 41.4 Non-operating (expenses) income 92.5 (52.8 ) 17.7 (44.4 ) Income (loss) before provision for income taxes 88.2 6.1 30.6 (3.0 ) (Provision for) benefit from income taxes 17.2 3.7 (8.8 ) 4.2 Net income (loss) 105.4 9.8 21.8 1.2 Net (income) loss attributable to noncontrolling interests (6.2 ) (18.7 ) (12.4 ) (0.2 ) Preferred stock dividends and accretion of issuance costs — — — — Net (loss) income attributable to Kennedy-Wilson $ 99.2 $ (8.9 ) $ 9.4 $ 1.0 Basic (loss) earnings per share $ 0.69 $ (0.08 ) $ 0.08 $ — Diluted (loss) earnings per share $ 0.69 $ (0.08 ) $ 0.08 $ — (Dollars in millions, except earnings per share amounts) Year ended December 31, 2016 Fourth Third Second First Revenues $ 180.4 $ 174.3 $ 176.5 $ 172.2 Operating expenses 194.3 166.1 168.6 162.9 Income from unconsolidated investments 67.3 31.7 8.4 19.2 Operating income (loss) 53.4 39.9 16.3 28.5 Non-operating (expenses) income 3.7 (21.3 ) (22.4 ) (7.6 ) Income (loss) before provision for income taxes 57.1 18.6 (6.1 ) 20.9 (Provision for) benefit from income taxes (11.9 ) (5.5 ) 3.9 (0.5 ) Net income (loss) 45.2 13.1 (2.2 ) 20.4 Net (income) loss attributable to noncontrolling interests (29.6 ) (15.1 ) 1.1 (27.3 ) Preferred stock dividends and accretion of issuance costs (1.2 ) (0.5 ) (0.5 ) (0.6 ) Net (loss) income attributable to Kennedy-Wilson $ 14.4 $ (2.5 ) $ (1.6 ) $ (7.5 ) Basic (loss) earnings per share $ 0.13 $ (0.03 ) $ (0.02 ) $ (0.07 ) Diluted (loss) earnings per share $ 0.13 $ (0.03 ) $ (0.02 ) $ (0.07 )

BASIS OF PRESENTATION AND SUM49

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - KWE Acquisition (Details) $ / shares in Units, £ in Millions, $ in Millions	Oct. 20, 2017USD ($)$ / sharesshares	Oct. 20, 2017GBP (£)shares	Dec. 31, 2017shares	Dec. 31, 2015shares	May 19, 2015$ / shares
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Par value (in dollars per share)	$ 0.0001
KWE [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Cash consideration to shareholders	$ 697.2	£ 528.6
Cash consideration to shareholders paid by parent	380.3	288.3
Cash consideration to shareholders paid by KWE	$ 316.9	£ 240.3
Common Stock [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Issuance of common stock (in shares) | shares	37,226,695	37,226,695	37,226,695	8,625,000
Par value (in dollars per share)					$ 0.0001

BASIS OF PRESENTATION AND SUM50

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue Recognition (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)subsidiary	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Segment Reporting Information [Line Items]
Negative fund performance that would cause reversal of performance fees	$ 32.9
Accrued performance fees	$ 5.6	$ 13	$ 18
Number of wholly-owned subsidiaries managing KWE | subsidiary	1
Property management fee percentage	1.00%
Management fee payable	$ 16
Elimination [Member]
Segment Reporting Information [Line Items]
Management fees revenue	$ 26.3	$ 36.9	$ 75

BASIS OF PRESENTATION AND SUM51

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Unconsolidated Investments (Details)	Dec. 31, 2017investment
Accounting Policies [Abstract]
Fair Value, Option, Number of Investments	17

BASIS OF PRESENTATION AND SUM52

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Foreign Currencies (Details)	Dec. 31, 2017
Foreign Currency Fair Value Hedge Derivative [Line Items]
Percentage of investments in foreign platforms	49.00%
Minimum [Member]
Foreign Currency Fair Value Hedge Derivative [Line Items]
Percentage of hedged investment in KWE	50.00%
Maximum [Member]
Foreign Currency Fair Value Hedge Derivative [Line Items]
Percentage of hedged investment in KWE	100.00%

BASIS OF PRESENTATION AND SUM53

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Goodwill (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Accounting Policies [Abstract]
Goodwill impairment loss	$ 0	$ 0	$ 0

BASIS OF PRESENTATION AND SUM54

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Accounts Receivable (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Provision for doubtful accounts	$ 0	$ 0

BASIS OF PRESENTATION AND SUM55

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Recent Accounting Pronouncements (Details) $ in Millions	Dec. 31, 2016USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of new accounting principle in period of adoption	$ 9.3
Accounting Standards Update 2016-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred income tax assets	9.3
Retained Earnings [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of new accounting principle in period of adoption	9.3
Retained Earnings [Member] | Accounting Standards Update 2016-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of new accounting principle in period of adoption	$ 9.3

LOAN PURCHASES AND ORIGINATIO56

LOAN PURCHASES AND ORIGINATIONS (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)loan	Dec. 31, 2016USD ($)loan	Dec. 31, 2015USD ($)	Jan. 01, 2016USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan purchases and originations	$ 84.7	$ 87.7
Number of loans sold | loan	1
Proceeds from sale of finance receivables	$ 10.5
Loans acquired		16.1	$ 235.8
Loans and other income	15.2	12.6	19.5
Corporate Joint Venture [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan purchases and originations				$ 46.3
Origination of notes receivable from related parties			$ 38.7
KWE [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Significant sales		138.5
Gain (loss) on sales		6.9
Proceeds from distributions		$ 25.4
Kona Village [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ownership percentage sold of equity method investment		50.00%
Office Property in San Diego, California [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Proceeds from collection of loans receivable	6.4
Six Hotels, United Kingdom [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Proceeds from principal repayments on loans and leases held-for-investment	$ 6.4
Number of loans | loan	6
Class A Office Building Acquired in Burbank, CA [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Proceeds from loans		$ 4.9
Five Assets, United Kingdom [Member] | KWE [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans sold | loan		5
Eight Hotels, United Kingdom [Member] | KWE [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | loan		8
Notes Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan purchases and originations	$ 84.7	$ 87.7
Mortgage Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans acquired		$ 4.5

REAL ESTATE AND ACQUIRED IN P57

REAL ESTATE AND ACQUIRED IN PLACE LEASE VALUE - Schedule of Investments in Consolidated Properties (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Real Estate [Abstract]
Land	$ 1,509.4	$ 1,383.2
Buildings	4,558	4,048.7
Building improvements	511.2	373.5
Acquired in-place lease values	417.3	383.1
Real estate investment, at cost	6,995.9	6,188.5
Less accumulated depreciation and amortization	(552.2)	(374.3)
Real estate and acquired in place lease values, net of depreciation and amortization	$ 6,443.7	5,814.2
Leases, Acquired-in-Place [Member]
Real Estate Properties [Line Items]
Weighted-average lease term	8 years 6 months
Building and Building Improvements [Member] | Maximum [Member]
Real Estate Properties [Line Items]
Estimated useful life (not to exceed)	40 years
Buildings, Building Improvements and Acquired In-Place Lease Values [Member]
Real Estate Properties [Line Items]
Depreciation and amortization expense	$ 198.9	$ 181.6	$ 157.3

REAL ESTATE AND ACQUIRED IN P58

REAL ESTATE AND ACQUIRED IN PLACE LEASE VALUE - Schedule of Acquisitions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Land	$ 128	$ 195.8
Building	486.7	550.6
Acquired in place lease values	24.1	32.8
Investment debt	312.3	295.8
NCI	8.7	227
KWH Shareholders' Equity	318.9	256.4
Gain on sale of real estate properties	258	137.9	$ 73.5
Acquisition-related gains	0	$ 16.2	$ 108.1
KWE [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Ownership percentage by parent		23.60%
Retail Centers And Commercial Property Acquired In Western U.S. [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Land	99.3
Building	427.9
Acquired in place lease values	24.1
Investment debt	312.3
NCI	3.8
KWH Shareholders' Equity	235.1
Development Project, Office And Multifamily Property Acquired In Ireland [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Land	28.7
Building	58.8
Acquired in place lease values	0
Investment debt	0
NCI	4.9
KWH Shareholders' Equity	$ 83.8
Retail, Multi-Family and Residential Acquired in Western U.S. [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Land		$ 124.6
Building		360.2
Acquired in place lease values		8.7
Investment debt		295.8
NCI		2
KWH Shareholders' Equity		195.7
Gain on sale of real estate properties		8.6
Acquisition-related gains		7.6
Commercial And Development Properties Acquired In Ireland [Member] | KWE [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Land		25.3
Building		84.9
Acquired in place lease values		5.8
Investment debt		0
NCI		91.6
KWH Shareholders' Equity		24.4
Development Project And Supermarket Acquired In Spain [Member] | KWE [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Land		1.9
Building		17.1
Acquired in place lease values		0.3
Investment debt		0
NCI		15.3
KWH Shareholders' Equity		$ 4
KWE [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Ownership percentage by parent		23.60%
KWE [Member] | Office And Commercial Properties Acquired In United Kingdom [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Land		$ 44
Building		88.4
Acquired in place lease values		18
Investment debt		0
NCI		118.1
KWH Shareholders' Equity		$ 32.3

REAL ESTATE AND ACQUIRED IN P59

REAL ESTATE AND ACQUIRED IN PLACE LEASE VALUE - Schedule of Acquisitions, Additional Information (Details) - property	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Retail Centers And Commercial Property Acquired In Western U.S. [Member] | Retail [Member]
Real Estate Properties [Line Items]
Number of properties acquired	2
Retail Centers And Commercial Property Acquired In Western U.S. [Member] | Multifamily [Member]
Real Estate Properties [Line Items]
Number of properties acquired	6
Retail Centers And Commercial Property Acquired In Western U.S. [Member] | Commercial [Member]
Real Estate Properties [Line Items]
Number of properties acquired	1
Development Project, Office And Multifamily Property Acquired In Ireland [Member] | Multifamily [Member]
Real Estate Properties [Line Items]
Number of properties acquired	1
Development Project, Office And Multifamily Property Acquired In Ireland [Member] | Office Building [Member]
Real Estate Properties [Line Items]
Number of properties acquired	1
Development Project, Office And Multifamily Property Acquired In Ireland [Member] | Development Project [Member]
Real Estate Properties [Line Items]
Number of properties acquired	1
Retail, Multi-Family and Residential Acquired in Western U.S. [Member]
Real Estate Properties [Line Items]
Number of properties acquired		2
Retail, Multi-Family and Residential Acquired in Western U.S. [Member] | Retail [Member]
Real Estate Properties [Line Items]
Number of properties acquired		3
Retail, Multi-Family and Residential Acquired in Western U.S. [Member] | Multifamily [Member]
Real Estate Properties [Line Items]
Number of properties acquired		6
Office And Commercial Properties Acquired In United Kingdom [Member] | Office Building [Member] | KWE [Member]
Real Estate Properties [Line Items]
Number of properties acquired		10
Office And Commercial Properties Acquired In United Kingdom [Member] | Commercial [Member] | KWE [Member]
Real Estate Properties [Line Items]
Number of properties acquired		2
Commercial And Development Properties Acquired In Ireland [Member] | Commercial [Member] | KWE [Member]
Real Estate Properties [Line Items]
Number of properties acquired		3
Commercial And Development Properties Acquired In Ireland [Member] | Development Project [Member] | KWE [Member]
Real Estate Properties [Line Items]
Number of properties acquired		1
Development Project And Supermarket Acquired In Spain [Member] | Development Project [Member] | KWE [Member]
Real Estate Properties [Line Items]
Number of properties acquired		1
Development Project And Supermarket Acquired In Spain [Member] | Supermarket [Member] | KWE [Member]
Real Estate Properties [Line Items]
Number of properties acquired		1

REAL ESTATE AND ACQUIRED IN P60

REAL ESTATE AND ACQUIRED IN PLACE LEASE VALUE - Schedule of Assets and Liabilities Assumed and Acquisition-Related Gains Recognized (Details) ft² in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2017property	Dec. 31, 2016USD ($)ft²Unit	Dec. 31, 2015USD ($)ft²Unit
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Cash		$ 0.8	$ 10.7
Real estate and acquired in-place lease values		122.8	518.3
Accounts receivable and other assets		5.9	3.3
Accounts payable, accrued expenses, and other liabilities		1.4	9.9
Investment debt		29	263.9
Noncontrolling interests		1.8	5.5
Acquisition related gain		16.2	84.4
Noncontrolling Interests [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Acquisition related gain			2.3
Development Project in Hawai [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Cash		0
Real estate and acquired in-place lease values		76.3
Accounts receivable and other assets		5.9
Accounts payable, accrued expenses, and other liabilities		1
Investment debt		0
Noncontrolling interests		0
Acquisition related gain		7.6
Retail Centers Acquired in Western US [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Cash		0.8
Real estate and acquired in-place lease values		46.5
Accounts receivable and other assets		0
Accounts payable, accrued expenses, and other liabilities		0.4
Investment debt		29
Noncontrolling interests		1.8
Acquisition related gain		$ 8.6
Number of properties acquired | property	1
Multifamily Properties Acquired in Western U.S. [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Cash			2.9
Real estate and acquired in-place lease values			283.6
Accounts receivable and other assets			0.8
Accounts payable, accrued expenses, and other liabilities			3.9
Investment debt			166
Noncontrolling interests			0.5
Acquisition related gain			$ 46.5
Number of units | Unit		1,468	1,468
Commercial Acquired in Western U.S. [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Cash			$ 7.8
Real estate and acquired in-place lease values			234.7
Accounts receivable and other assets			2.5
Accounts payable, accrued expenses, and other liabilities			6
Investment debt			97.9
Noncontrolling interests			5
Acquisition related gain			$ 37.9
Area of units acquired (in sq ft) | ft²		490	490

REAL ESTATE AND ACQUIRED IN P61

REAL ESTATE AND ACQUIRED IN PLACE LEASE VALUE - Consolidated of Previously Unconsolidated Investments, Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Real Estate Properties [Line Items]
Acquisition-related gains	$ 0	$ 16.2	$ 108.1
Kona Village [Member]
Real Estate Properties [Line Items]
Ownership percentage sold of equity method investment		50.00%
Retail, Multi-Family and Residential Acquired in Western U.S. [Member]
Real Estate Properties [Line Items]
Acquisition-related gains		$ 7.6

REAL ESTATE AND ACQUIRED IN P62

REAL ESTATE AND ACQUIRED IN PLACE LEASE VALUE - Loans Converted to Real Estate (Details) - Commercial Acquired in Ireland [Member] $ in Millions	12 Months Ended
	Dec. 31, 2015USD ($)loanOfficeBuilding
Real Estate Properties [Line Items]
Number of properties foreclosed upon	3
Recognized gain in excess of purchase price | $	$ 15.9
KWE [Member]
Real Estate Properties [Line Items]
Number of properties foreclosed upon	3
Number of loans on property foreclosed upon | loan	2

REAL ESTATE AND ACQUIRED IN P63

REAL ESTATE AND ACQUIRED IN PLACE LEASE VALUE - Gains on Real Estate (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)property	Dec. 31, 2016USD ($)property	Dec. 31, 2015USD ($)property
Real Estate [Abstract]
Consolidated | $	$ 258	$ 137.9	$ 73.5
NCI | $	43.3	82.6	43
Net of NCI | $	$ 214.7	$ 55.3	$ 30.5
Multifamily [Member] | United States [Member]
Real Estate [Line Items]
Number of real estate properties sold	3
Multifamily [Member] | Japan [Member]
Real Estate [Line Items]
Number of real estate properties sold			1
Retail [Member] | United States [Member]
Real Estate [Line Items]
Number of real estate properties sold	1		1
Development Project [Member] | United States [Member]
Real Estate [Line Items]
Number of real estate properties sold		1
Development Project [Member] | Ireland [Member]
Real Estate [Line Items]
Number of real estate properties sold	1
Commercial [Member] | United States [Member]
Real Estate [Line Items]
Number of real estate properties sold		1
Commercial [Member] | United Kingdom And Ireland [Member]
Real Estate [Line Items]
Number of real estate properties sold	25	44	23
Commercial [Member] | Ireland [Member]
Real Estate [Line Items]
Number of real estate properties sold	3
Commercial [Member] | Japan [Member]
Real Estate [Line Items]
Number of real estate properties sold		1
Residential Property [Member] | United Kingdom [Member]
Real Estate [Line Items]
Number of real estate properties sold	1
Residential Property [Member] | Spain [Member]
Real Estate [Line Items]
Number of real estate properties sold	1
Condominium Unit [Member] | United States [Member]
Real Estate [Line Items]
Number of real estate properties sold		1	1
Condominium Unit [Member] | Spain [Member]
Real Estate [Line Items]
Number of real estate properties sold	2
Vacant Lot [Member] | United States [Member]
Real Estate [Line Items]
Number of real estate properties sold		1
Land Parcel [Member] | United States [Member]
Real Estate [Line Items]
Number of real estate properties sold		1

REAL ESTATE AND ACQUIRED IN P64

REAL ESTATE AND ACQUIRED IN PLACE LEASE VALUE - Guarantees (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Real Estate [Line Items]
Percentage of property level debt	1.00%
Estimate of Fair Value Measurement [Member]
Real Estate [Line Items]
Fair value of guarantees	$ 0	$ 0
Loans Payable [Member] | Performance Guarantee [Member]
Real Estate [Line Items]
Guarantees, maximum exposure	$ 69.4

REAL ESTATE AND ACQUIRED IN P65

REAL ESTATE AND ACQUIRED IN PLACE LEASE VALUE - Schedule of Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Real Estate [Abstract]
Pro forma revenues	$ 835	$ 740.2
Pro forma net income	150.1	99.5
Pro forma net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	$ 111.9	$ 24.8
Pro forma net income per share:
Basic (in dollars per share)	$ 0.94	$ 0.23
Diluted (in dollars per share)	$ 0.94	$ 0.23

UNCONSOLIDATED INVESTMENTS - Jo

UNCONSOLIDATED INVESTMENTS - Joint Venture Holdings (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)propertylot	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	$ 486.4	$ 555.6
Fair value gain from unconsolidated investments	38.6	56.6	$ 34.9
Western United States [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	474	519.8
United Kingdom [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	9.9	13.8
Spain [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	0	15.9
Japan [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	$ 2.5	6.1
Percent of interest of real estate properties sold	5.00%
Multifamily [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	$ 202.2	174.7
Number of properties acquired | property	5
Number of real estate properties sold | property	51
Multifamily [Member] | Western United States [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	$ 199.7	168.6
Multifamily [Member] | United Kingdom [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	0	0
Multifamily [Member] | Spain [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	0	0
Multifamily [Member] | Japan [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	$ 2.5	6.1
Number of real estate properties sold | property	49
Commercial [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	$ 49.3	65.4
Number of properties acquired | property	2
Number of real estate properties sold | property	2
Commercial [Member] | Western United States [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	$ 39.4	51.6
Commercial [Member] | United Kingdom [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	9.9	13.8
Commercial [Member] | Spain [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	0	0
Commercial [Member] | Japan [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	0	0
Funds [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	55.1	47
Funds [Member] | Western United States [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	55.1	47
Funds [Member] | United Kingdom [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	0	0
Funds [Member] | Spain [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	0	0
Funds [Member] | Japan [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	0	0
Residential and Other [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	$ 179.8	268.5
Number of vacant lots sold | lot	4
Residential and Other [Member] | Western United States [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	$ 179.8	252.6
Residential and Other [Member] | United Kingdom [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	0	0
Residential and Other [Member] | Spain [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	0	15.9
Residential and Other [Member] | Japan [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	$ 0	$ 0
Minimum [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	5.00%
Maximum [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	50.00%

UNCONSOLIDATED INVESTMENTS - Vi

UNCONSOLIDATED INVESTMENTS - Vintage Housing Holdings (Details) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2015USD ($)limited_partnership	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Schedule of Equity Method Investments [Line Items]
Contributions to joint ventures		$ 79.9	$ 124.9	$ 184.3
Fair value gain from unconsolidated investments		38.6	56.6	34.9
Operating distributions from unconsolidated investments		85.7
Vintage Housing Holdings [Member]
Schedule of Equity Method Investments [Line Items]
Contributions to joint ventures	$ 78.7
Number of syndicated limited partnerships | limited_partnership	30
Investments in joint ventures		114.8	84.2
Fair value gain from unconsolidated investments		19.4	$ 24.3	$ 14
Operating distributions from unconsolidated investments		$ 6.7

UNCONSOLIDATED INVESTMENTS - In

UNCONSOLIDATED INVESTMENTS - Income from Unconsolidated Investments (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)propertylot	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Equity Method Investments and Joint Ventures [Abstract]
Equity in joint venture income	$ 30.4	$ 70.5	$ 58.2
Equity in joint venture income (loss) - fair value	38.6	56.6	34.9
Interest income recognized	0	(0.5)	4.3
Total interest income and foreign currency gain (loss)	69	126.6	97.4
Schedule of Equity Method Investments [Line Items]
Gain on sale of real estate	226.7	$ 130.7	$ 72.4
Equity in joint venture income from operating results	16.3
Multifamily and Commercial [Member]
Schedule of Equity Method Investments [Line Items]
Gain on sale of real estate	$ 14
Multifamily [Member]
Schedule of Equity Method Investments [Line Items]
Number of real estate properties sold | property	51
Commercial [Member]
Schedule of Equity Method Investments [Line Items]
Number of real estate properties sold | property	2
Residential and Other [Member]
Schedule of Equity Method Investments [Line Items]
Number of vacant lots sold | lot	4
Japan [Member]
Schedule of Equity Method Investments [Line Items]
Percent of interest of real estate properties sold	5.00%
Japan [Member] | Multifamily [Member]
Schedule of Equity Method Investments [Line Items]
Number of real estate properties sold | property	49

UNCONSOLIDATED INVESTMENTS - Ch

UNCONSOLIDATED INVESTMENTS - Changes in Control and Contributions to Unconsolidated Investments (Details) ft² in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)property	Dec. 31, 2016USD ($)ft²Unitpropertyjoint_venture	Dec. 31, 2015USD ($)ft²Unitproperty
Schedule of Equity Method Investments [Line Items]
Contributions to new and existing joint venture investments	$ 79.9	$ 124.9	$ 184.3
No. of Properties | property	7	4	87
Initial Contribution	$ 15.7	$ 36.4	$ 99.2
Payments to acquired existing investments	$ 64.2	$ 88.5	$ 85.1
Commercial [Member] | Western United States [Member]
Schedule of Equity Method Investments [Line Items]
No. of Properties | property	0	1	1
Initial Contribution	$ 0	$ 13.4	$ 9.1
Multifamily [Member] | Western United States [Member]
Schedule of Equity Method Investments [Line Items]
No. of Properties | property	5	1	31
Initial Contribution	$ 13.9	$ 19.9	$ 80.5
Residential Real Estate [Member] | Western United States [Member]
Schedule of Equity Method Investments [Line Items]
No. of Properties | property	0	1	4
Initial Contribution	$ 0	$ 1	$ 1.4
Residential Real Estate [Member] | Japan [Member]
Schedule of Equity Method Investments [Line Items]
No. of Properties | property	0	0	50
Initial Contribution	$ 0	$ 0	$ 6.2
Other Investments [Member] | Western United States [Member]
Schedule of Equity Method Investments [Line Items]
No. of Properties | property	2	1	1
Initial Contribution	$ 1.8	$ 2.1	$ 2
Kona Village [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage sold of equity method investment		50.00%
Retail Building in Orem, Utah and Development Project in Kona, HI [Member]
Schedule of Equity Method Investments [Line Items]
Number of joint ventures of equity interests purchased | joint_venture		2
Area of units acquired (in sq ft) | ft²		216
Multifamily Properties Acquired in Western U.S. [Member]
Schedule of Equity Method Investments [Line Items]
Units acquired | Unit		1,468	1,468
Commercial Acquired in Western U.S. [Member]
Schedule of Equity Method Investments [Line Items]
Area of units acquired (in sq ft) | ft²		490	490

UNCONSOLIDATED INVESTMENTS - Di

UNCONSOLIDATED INVESTMENTS - Distributions from Joint Ventures (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	$ 85.7
Investing distributions from unconsolidated investments	133.4
Multifamily [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	26.3
Investing distributions from unconsolidated investments	31
Commercial [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	8.8
Investing distributions from unconsolidated investments	15.3
Funds [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	4
Investing distributions from unconsolidated investments	5.7
Residential, Hotel and Other [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	46.6
Investing distributions from unconsolidated investments	81.4
Western United States [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	79.2
Investing distributions from unconsolidated investments	111.2
Western United States [Member] | Multifamily [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	26.1
Investing distributions from unconsolidated investments	26.1
Western United States [Member] | Commercial [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	6.5
Investing distributions from unconsolidated investments	15.3
Western United States [Member] | Funds [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	4
Investing distributions from unconsolidated investments	5.7
Western United States [Member] | Residential, Hotel and Other [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	42.6
Investing distributions from unconsolidated investments	64.1
United Kingdom [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	2.3
Investing distributions from unconsolidated investments	0
United Kingdom [Member] | Multifamily [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	0
Investing distributions from unconsolidated investments	0
United Kingdom [Member] | Commercial [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	2.3
Investing distributions from unconsolidated investments	0
United Kingdom [Member] | Funds [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	0
Investing distributions from unconsolidated investments	0
United Kingdom [Member] | Residential, Hotel and Other [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	0
Investing distributions from unconsolidated investments	0
Spain [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	4
Investing distributions from unconsolidated investments	17.3
Spain [Member] | Multifamily [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	0
Investing distributions from unconsolidated investments	0
Spain [Member] | Commercial [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	0
Investing distributions from unconsolidated investments	0
Spain [Member] | Funds [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	0
Investing distributions from unconsolidated investments	0
Spain [Member] | Residential, Hotel and Other [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	4
Investing distributions from unconsolidated investments	17.3
Japan [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	0.2
Investing distributions from unconsolidated investments	4.9
Japan [Member] | Multifamily [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	0.2
Investing distributions from unconsolidated investments	4.9
Japan [Member] | Commercial [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	0
Investing distributions from unconsolidated investments	0
Japan [Member] | Funds [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	0
Investing distributions from unconsolidated investments	0
Japan [Member] | Residential, Hotel and Other [Member]
Schedule of Equity Method Investments [Line Items]
Operating distributions from unconsolidated investments	0
Investing distributions from unconsolidated investments	$ 0

UNCONSOLIDATED INVESTMENTS - Ca

UNCONSOLIDATED INVESTMENTS - Capital Commitments (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)joint_venture	Dec. 31, 2016USD ($)
Equity Method Investments and Joint Ventures [Abstract]
Unfulfilled capital commitments | $	$ 63.6	$ 24.7
Number with unfulfilled capital commitments | joint_venture	4

FAIR VALUE MEASUREMENTS AND T72

FAIR VALUE MEASUREMENTS AND THE FAIR VALUE OPTION - Schedule of Fair Value Measurements (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unconsolidated investments	$ 346.1	$ 329.4
Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unconsolidated investments	346.1	329.4
Marketable securities	7.5	7.5
Assets (liabilities), fair value disclosure	252.7	289.7
Recurring [Member] | Currency Derivative Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net currency derivative contracts	(100.9)	(47.2)
Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unconsolidated investments	0	0
Marketable securities	7.5	7.5
Assets (liabilities), fair value disclosure	7.5	7.5
Recurring [Member] | Level 1 [Member] | Currency Derivative Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net currency derivative contracts	0	0
Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unconsolidated investments	0	0
Marketable securities	0	0
Assets (liabilities), fair value disclosure	(100.9)	(47.2)
Recurring [Member] | Level 2 [Member] | Currency Derivative Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net currency derivative contracts	(100.9)	(47.2)
Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unconsolidated investments	346.1	329.4
Marketable securities	0	0
Assets (liabilities), fair value disclosure	346.1	329.4
Recurring [Member] | Level 3 [Member] | Currency Derivative Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net currency derivative contracts	$ 0	$ 0

FAIR VALUE MEASUREMENTS AND T73

FAIR VALUE MEASUREMENTS AND THE FAIR VALUE OPTION - Unconsolidated Investments (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)investment	Dec. 31, 2016USD ($)
Equity Method Investments [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Funds	$ 55.1	$ 47
Total	346.1	329.4
Equity Method Investments [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
FV Option	291	$ 282.4
Recurring [Member] | Level 3 [Member] | Real Estate Funds [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
The funds, unfunded capital commitments	$ 9
Funds [Member] | Equity Method Investments [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Number of unconsolidated investments | investment	17

FAIR VALUE MEASUREMENTS AND T74

FAIR VALUE MEASUREMENTS AND THE FAIR VALUE OPTION - Schedule of Changes in Level 3 Investments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Change in unrealized gain (losses) on level 3 investments	$ 36	$ 49.5
Equity Method Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	329.4	223.8	$ 95.2
Unrealized and realized gains	53.2	65.7	42.3
Unrealized and realized losses	(1.1)		(0.1)
Contributions	58.1	76.3	128.5
Distributions	(117)	(75.3)	(41)
Other	23.5	38.9	(1.1)
Ending Balance	$ 346.1	$ 329.4	$ 223.8

FAIR VALUE MEASUREMENTS AND T75

FAIR VALUE MEASUREMENTS AND THE FAIR VALUE OPTION - Schedule of the Funds and Fair Value Option Investments, Significant Inputs (Details)	12 Months Ended
	Dec. 31, 2017
Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Credit spreads	1.55%
Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Credit spreads	3.46%
Level 3 [Member] | Office [Member] | Minimum [Member] | Income and Market Approach Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Capitalization Rates	4.50%
Discount Rates	6.75%
Level 3 [Member] | Office [Member] | Maximum [Member] | Income and Market Approach Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Capitalization Rates	7.25%
Discount Rates	8.00%
Level 3 [Member] | Retail [Member] | Minimum [Member] | Income and Market Approach Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Capitalization Rates	5.75%
Discount Rates	7.25%
Level 3 [Member] | Retail [Member] | Maximum [Member] | Income and Market Approach Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Capitalization Rates	9.50%
Discount Rates	11.50%
Level 3 [Member] | Multifamily [Member] | Minimum [Member] | Income and Market Approach Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Capitalization Rates	4.75%
Discount Rates	8.00%
Level 3 [Member] | Multifamily [Member] | Maximum [Member] | Income and Market Approach Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Capitalization Rates	7.75%
Discount Rates	9.75%
Level 3 [Member] | Residential Property [Member] | Minimum [Member] | Income and Market Approach Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount Rates	6.00%
Level 3 [Member] | Residential Property [Member] | Maximum [Member] | Income and Market Approach Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount Rates	12.00%
Level 3 [Member] | Hotel [Member] | Income and Market Approach Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Capitalization Rates	6.50%
Discount Rates	10.50%

FAIR VALUE MEASUREMENTS AND T76

FAIR VALUE MEASUREMENTS AND THE FAIR VALUE OPTION - Currency Foward Contracts (Details) € in Millions, £ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)	Dec. 31, 2017GBP (£)	Dec. 31, 2017EUR (€)	Dec. 31, 2016USD ($)
Derivative [Line Items]
Hedge Asset	$ 2.4			$ 20.2
Designated as Hedging Instrument [Member] | Foreign Exchange Contract, One [Member]
Derivative [Line Items]
Notional Amount | €			€ 130
Designated as Hedging Instrument [Member] | Foreign Exchange Contract, Two [Member]
Derivative [Line Items]
Notional Amount | €			€ 360
Designated as Hedging Instrument [Member] | Foreign Exchange Contract, Four [Member]
Derivative [Line Items]
Notional Amount | £		£ 540.7
Level 2 [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Hedge Asset	2.4
Hedge Liability	(103.3)
Change in Unrealized Gains (Losses)	(78)
Realized Gains (Losses)	(8.8)
Cash Received (Paid)
Cash Paid	(3.2)
Level 2 [Member] | Designated as Hedging Instrument [Member] | Derivatives Outstanding [Member]
Derivative [Line Items]
Hedge Asset	2.4
Hedge Liability	(103.3)
Change in Unrealized Gains (Losses)	(70.8)
Realized Gains (Losses)	(10.8)
Cash Received (Paid)
Cash Paid	(0.4)
Level 2 [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Contract, One [Member]
Derivative [Line Items]
Hedge Asset	0.3
Hedge Liability	(7.1)
Change in Unrealized Gains (Losses)	(10.7)
Realized Gains (Losses)	0
Cash Received (Paid)
Cash Paid	0
Level 2 [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Contract, Two [Member]
Derivative [Line Items]
Hedge Asset	0
Hedge Liability	(77)
Change in Unrealized Gains (Losses)	(17.7)
Realized Gains (Losses)	0
Cash Received (Paid)
Cash Paid	0
Level 2 [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Contract, Three [Member]
Derivative [Line Items]
Hedge Asset	0
Hedge Liability	0
Change in Unrealized Gains (Losses)	(22)
Realized Gains (Losses)	0
Cash Received (Paid)
Cash Paid	0
Level 2 [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Contract, Four [Member]
Derivative [Line Items]
Hedge Asset	2.1
Hedge Liability	(19.2)
Change in Unrealized Gains (Losses)	(20.4)
Realized Gains (Losses)	0
Cash Received (Paid)
Cash Paid	(0.4)
Level 2 [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Contract, Five [Member]
Derivative [Line Items]
Hedge Asset	0
Hedge Liability	0
Change in Unrealized Gains (Losses)	0
Realized Gains (Losses)	(10.8)
Cash Received (Paid)
Cash Paid	0
Level 2 [Member] | Designated as Hedging Instrument [Member] | Derivative Settled [Member]
Derivative [Line Items]
Hedge Asset	0
Hedge Liability	0
Change in Unrealized Gains (Losses)	(7.2)
Realized Gains (Losses)	2
Cash Received (Paid)
Cash Paid	(2.8)
Level 2 [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Contract, Six [Member]
Derivative [Line Items]
Hedge Asset	0
Hedge Liability	0
Change in Unrealized Gains (Losses)	(1.8)
Realized Gains (Losses)	1.8
Cash Received (Paid)
Cash Paid	0
Level 2 [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Contract, Seven [Member]
Derivative [Line Items]
Hedge Asset	0
Hedge Liability	0
Change in Unrealized Gains (Losses)	0
Realized Gains (Losses)	0
Cash Received (Paid)
Cash Paid	(0.1)
Level 2 [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Contract, Eight [Member]
Derivative [Line Items]
Hedge Asset	0
Hedge Liability	0
Change in Unrealized Gains (Losses)	(5.4)
Realized Gains (Losses)	0.2
Cash Received (Paid)
Cash Paid	$ (2.7)

FAIR VALUE MEASUREMENTS AND T77

FAIR VALUE MEASUREMENTS AND THE FAIR VALUE OPTION - Fair Value of Financial Instruments (Details) - USD ($) $ in Billions	Dec. 31, 2017	Dec. 31, 2016
Estimate of Fair Value Measurement [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	$ 5.8	$ 5
Reported Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	$ 5.7	$ 4.9

OTHER ASSETS (Details)

OTHER ASSETS (Details) ft² in Thousands, $ in Millions	May 12, 2017ft²	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Other Assets [Abstract]
Development project asset		$ 55.3	$ 0
Accrued performance fees		32.9	27.3
Straight line rent		24	11.7
Goodwill		23.9	23.9
Prepaid expenses		13.3	10.2
Other, net of accumulated amortization of $2.6 million and $2.3 million at December 31, 2017 and 2016, respectively		10.7	10
Leasing commissions, net of accumulated amortization of $2.2 million and $1.7 million at December 31, 2017 and 2016, respectively		10.1	7.4
Marketable securities		7.5	7.5
VAT receivable		5	23.2
Deposits		3.5	1.8
Hedge assets		2.4	20.2
Deferred tax asset, net		0	28.4
Other assets		296	269.4
Accumulated amortization, other		2.6	2.3
Accumulated amortization, leasing commission		2.2	1.7
Depreciation and amortization expense		13.6	16.6	$ 9
Sale of real estate		111.5	29.3	3.7
Cost of real estate sold		80.2	22.1	$ 2.6
Office Building [Member] | Ireland [Member]
Other Assets [Abstract]
Number of square feet of property sold | ft²	130
Sale of real estate		91.6
Cost of real estate sold		64.1
Office furniture and equipment [Member]
Other Assets [Abstract]
Office furniture and equipment net of accumulated depreciation of $35.8 million and $24.4 million at December 31, 2017 and 2016, respectively		44.3	25.4
Accumulated depreciation, property, plant and equipment		35.8	24.4
Above market Leases [Member]
Other Assets [Abstract]
Above-market leases, net of accumulated amortization of $44.3 million and $28.1 million at December 31, 2017 and 2016, respectively		63.1	72.4
Accumulated amortization, above-market leases		$ 44.3	$ 28.1

MORTGAGE DEBT - Schedule of Mor

MORTGAGE DEBT - Schedule of Mortgage Debt (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
KWE [Member]
Debt Instrument [Line Items]
Ownership percentage by parent		23.60%
Mortgages [Member]
Debt Instrument [Line Items]
Mortgage debt (excluding loan fees)	$ 3,180.5	$ 2,788.6
Unamortized loan fees	(23.9)	(18.2)
Long-term debt	3,156.6	2,770.4
Unamortized premium (discount)	2.4	5
Mortgages [Member] | Mortgage Loans Secured by Multi-Family Properties [Member] | Western U.S. [Member]
Debt Instrument [Line Items]
Mortgage debt (excluding loan fees)	1,227.5	1,180.8
Mortgages [Member] | Mortgage Loans Secured by Multi-Family Properties [Member] | Ireland [Member]
Debt Instrument [Line Items]
Mortgage debt (excluding loan fees)	263.2	159.3
Mortgages [Member] | Mortgage Loans Secured by Commercial [Member] | Western U.S. [Member]
Debt Instrument [Line Items]
Mortgage debt (excluding loan fees)	370.6	290.2
Mortgages [Member] | Mortgage Loans Secured by Commercial [Member] | United Kingdom [Member]
Debt Instrument [Line Items]
Mortgage debt (excluding loan fees)	583.2	616.9
Mortgages [Member] | Mortgage Loans Secured by Commercial [Member] | Ireland [Member]
Debt Instrument [Line Items]
Mortgage debt (excluding loan fees)	505	331.5
Mortgages [Member] | Mortgage Loans Secured by Commercial [Member] | Spain [Member]
Debt Instrument [Line Items]
Mortgage debt (excluding loan fees)	95.5	84.4
Mortgages [Member] | Mortgage Loans Secured by Hotel [Member] | Western U.S. [Member]
Debt Instrument [Line Items]
Mortgage debt (excluding loan fees)	49.1	49.8
Mortgages [Member] | Mortgage Loans Secured by Hotel [Member] | Ireland [Member]
Debt Instrument [Line Items]
Mortgage debt (excluding loan fees)	$ 86.4	$ 75.7

MORTGAGE DEBT - Mortgage Debt,

MORTGAGE DEBT - Mortgage Debt, Additional Information (Details)	12 Months Ended
	Dec. 31, 2017loanpropertyacquisition	Dec. 31, 2016
Debt Instrument [Line Items]
Number of acquisitions partially financed with mortgages | acquisition	9
Number of existing mortgages refinanced | loan	9
Number of properties that acquired supplemental financing | property	1
Mortgages [Member]
Debt Instrument [Line Items]
Weighted-average interest rate of investment debt	3.35%	3.33%
Percent of property level debt with fixed rate	74.00%	75.00%
Percent of property level debt with floating rate and interest caps	8.00%	15.00%
Percent of property level debt with floating rate, without interest caps	18.00%	10.00%

MORTGAGE DEBT - Schedule of Mat

MORTGAGE DEBT - Schedule of Maturities (Details) - Mortgages [Member] - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
2,018	$ 67.7
2,019	356.6
2,020	164.3
2,021	159.4
2,022	434.9
Thereafter	1,995.2
Long-term debt, gross	3,178.1
Debt premium	2.4
Unamortized loan fees	(23.9)	$ (18.2)
Long-term debt	$ 3,156.6	$ 2,770.4

KW UNSECURED DEBT - Schedule of

KW UNSECURED DEBT - Schedule of Unsecured Debt (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt	$ 1,198.1	$ 952.8
Unamortized loan fees	(18.7)	(18.7)
Long-term debt	1,179.4	934.1
Unamortized premium (discount)	(1.9)	(2.2)
Line of Credit [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt	300	0
Senior Notes [Member]
Debt Instrument [Line Items]
Debt	$ 898.1	$ 952.8

KW UNSECURED DEBT - Borrowings

KW UNSECURED DEBT - Borrowings Under Credit Facilities (Details) - USD ($)	Oct. 20, 2017	Oct. 03, 2017	Dec. 10, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Line of Credit Facility [Line Items]
Repayment of lines of credit				$ 500,000,000	$ 125,000,000	$ 220,000,000
Borrowings under lines of credit				800,000,000	125,000,000	$ 95,000,000
Unsecured Debt [Member]
Line of Credit Facility [Line Items]
Debt (excluding loan fees)				$ 1,198,100,000	952,800,000
Revolving Credit Facility [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Fixed charge coverage ratio				3.1
Tangible net worth				$ 1,954,500,000
Secured recourse leverage ratio				0.80%
Liquidity				$ 358,800,000
Consolidated leverage ratio				63.10%
Adjusted secured leverage ratio				37.90%
Recourse leverage ratio				0.65
Debt (excluding loan fees)				$ 300,000,000	$ 0
A&R Facility [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity and debt instrument, face amount		$ 700,000,000
A&R Facility [Member] | Medium-term Notes [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity		200,000,000
Proceeds from issuance of debt		$ 200,000,000
A&R Facility [Member] | Medium-term Notes [Member] | LIBOR [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate (as percent)		1.65%
A&R Facility [Member] | Medium-term Notes [Member] | LIBOR [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate (as percent)		2.65%
A&R Facility [Member] | Revolving Credit Facility [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity		$ 500,000,000
Maturity of extension			1 year
Proceeds from issuance of debt		$ 200,000,000		400,000,000
Maximum consolidated leverage ratio	65.00%
Fixed charge coverage ratio measurement period	12 months
Covenant, percent of new equity offerings	50.00%
Maximum secured recourse leverage multiplier	1.5
Repayments of debt				100,000,000
Maximum amount outstanding during period				550,000,000
Remaining borrowing capacity				400,000,000
A&R Facility [Member] | Revolving Credit Facility [Member] | Line of Credit [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Fixed charge coverage ratio	1.70
Tangible net worth	$ 1,066,775,300
Liquidity	$ 75,000,000
A&R Facility [Member] | Revolving Credit Facility [Member] | Line of Credit [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Secured recourse leverage ratio	3.50%
Liquidity	$ 300,351,000
Adjusted secured leverage ratio	55.00%
A&R Facility [Member] | Revolving Credit Facility [Member] | Line of Credit [Member] | LIBOR [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate (as percent)		1.75%
A&R Facility [Member] | Revolving Credit Facility [Member] | Line of Credit [Member] | LIBOR [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate (as percent)		2.75%
KW Revolving Facility [Member] | Revolving Credit Facility [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity			$ 475,000,000
Average outstanding amount				285,200,000
KW Revolving Facility [Member] | Revolving Credit Facility [Member] | Line of Credit [Member] | LIBOR [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate (as percent)			2.50%
KW Revolving Facility [Member] | Revolving Credit Facility [Member] | Line of Credit [Member] | LIBOR [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate (as percent)			3.00%
KW Revolving Facility [Member] | Revolving Credit Facility [Member] | Unsecured Debt [Member]
Line of Credit Facility [Line Items]
Repayment of lines of credit		$ 350,000,000
Borrowings under lines of credit				400,000,000
Maximum amount outstanding during period				$ 375,000,000

KW UNSECURED DEBT - Senior Note

KW UNSECURED DEBT - Senior Notes (Details) - Senior Notes [Member]	1 Months Ended
	Dec. 31, 2017	Aug. 31, 2016USD ($)
Maximum [Member]
Debt Instrument [Line Items]
Balance sheet leverage ratio	1.50
Balance sheet leverage at period end	0.94
5.875% Senior Notes Due April 2024, Issued August 2016 [Member]
Debt Instrument [Line Items]
Debt face value		$ 250,000,000
5.875% Percent Senior Notes Dues April 2024 [Member]
Debt Instrument [Line Items]
Debt face value		$ 650,000,000
Interest rate (as a percent)		5.875%
Debt price percentage of principal amount		100.00%
7.75% Senior Notes Due 2042 [Member]
Debt Instrument [Line Items]
Interest rate (as a percent)	7.75%
Debt redemption price, percent of principal	100.00%

KWE UNSECURED BONDS - Schedule

KWE UNSECURED BONDS - Schedule of KWE Unsecured Bonds (Details) - Unsecured Bonds [Member] - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Mortgage debt (excluding loan fees)	$ 1,331.3	$ 1,192.4
Unamortized loan fees	(5.4)	(6.7)
Long-term debt	1,325.9	1,185.7
Unamortized premium (discount)	(4.3)	(4.1)
KWE Bonds [Member]
Debt Instrument [Line Items]
Mortgage debt (excluding loan fees)	675.6	616.8
KWE Euro Medium Term Note Programme [Member]
Debt Instrument [Line Items]
Mortgage debt (excluding loan fees)	$ 655.7	$ 575.6

KWE UNSECURED BONDS - Additiona

KWE UNSECURED BONDS - Additional Information (Details) € in Millions, $ in Millions

3 Months Ended

9 Months Ended

12 Months Ended

Sep. 30, 2016USD ($)

Jun. 30, 2016USD ($)

Jun. 30, 2016EUR (€)

Dec. 31, 2017USD ($)

Dec. 31, 2016USD ($)

Dec. 31, 2015USD ($)

Oct. 20, 2017USD ($)

Oct. 20, 2017GBP (£)

Sep. 30, 2016GBP (£)

Dec. 31, 2015GBP (£)

Jun. 30, 2015USD ($)

Jun. 30, 2015GBP (£)

Debt Instrument [Line Items]

Unrealized foreign currency translation loss

$ (155.3)

$ 164.1

$ 138.3

United Kingdom, Pounds [Member]

Debt Instrument [Line Items]

Unrealized foreign currency translation loss

22

Unsecured Bonds [Member]

Debt Instrument [Line Items]

Long-term debt

$ 1,325.9

$ 1,185.7

Unsecured Bonds [Member] | KWE Facility [Member] | Revolving Credit Facility [Member]

Debt Instrument [Line Items]

Maximum borrowing capacity

$ 304

£ 225,000,000

Unsecured Bonds [Member] | United Kingdom [Member] | Mortgage Loans, Unsecured [Member]

Debt Instrument [Line Items]

Maximum percentage of total assets

60.00%

Maximum ratio of consolidated secured indebtedness to total assets

50.00%

Interest coverage ratio

1.50

Maximum ratio of unencumbered assets to unsecured indebtedness

125.00%

Unsecured Bonds [Member] | KWE [Member] | United Kingdom [Member] | KWE Bonds [Member]

Debt Instrument [Line Items]

Debt face value

$ 405.3

£ 300,000,000

Interest rate (as a percent)

3.95%

3.95%

3.95%

3.95%

Unsecured Bonds [Member] | KWE [Member] | United Kingdom [Member] | KWE Euro Medium Term Note Programme [Member]

Debt Instrument [Line Items]

Debt face value

$ 2,700

£ 2,000,000,000

Proceeds from issuance of debt

$ 660.3

€ 550

Long-term debt

$ 655.7

Annual fixed coupon rate

3.25%

Unsecured Bonds [Member] | KWE [Member] | United Kingdom [Member] | Mortgage Loans, Unsecured [Member]

Debt Instrument [Line Items]

Debt face value

$ 270.3

£ 200,000,000

Effective interest rate

3.35%

3.35%

Percentage of proceeds converted to Euros with swaps

50.00%

RELATED PARTY TRANSACTIONS (Det

RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Related Party Transactions [Abstract]
Related party fees	$ 20.8	$ 28.9	$ 37.8
Elimination [Member]
Related Party Transaction [Line Items]
Management fees revenue	$ 26.3	$ 36.9	$ 75

INCOME TAXES - Schedule of Inco

INCOME TAXES - Schedule of Income before Income Tax, Domestic and Foreign (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Domestic	$ 90.6	$ 33.9	$ 61.2
Foreign	31.1	56.6	51.2
Total	$ 121.7	$ 90.5	$ 112.4

INCOME TAXES - Schedule of (Ben

INCOME TAXES - Schedule of (Benefit from) Provision for Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Federal
Current									$ (0.3)	$ (0.8)	$ 0.2
Deferred									(17.9)	17	13.2
Total federal tax expense (benefit)									(18.2)	16.2	13.4
State
Current									0.1	0.1	0
Deferred									(3.1)	2.8	0.3
Total state tax expense (benefit)									(3)	2.9	0.3
Foreign
Current									8.4	5.8	31.9
Deferred									(3.5)	(10.9)	7.8
Total foreign tax expense (benefit)									4.9	(5.1)	39.7
Provision for (benefit from) income taxes	$ (17.2)	$ (3.7)	$ 8.8	$ (4.2)	$ 11.9	$ 5.5	$ (3.9)	$ 0.5	$ (16.3)	$ 14	$ 53.4

INCOME TAXES - Reconciliation o

INCOME TAXES - Reconciliation of the Statutory Federal Income Tax Rate (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Statutory rate									35.00%
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Tax computed at the statutory rate									$ 42.6	$ 31.7	$ 39.3
Tax Reform federal rate change									(44.8)	0	0
Tax deduction in excess of book compensation from restricted stock vesting									(3.7)	0	0
Foreign permanent differences, primarily non-deductible depreciation, amortization and acquisition-related expenses in the United Kingdom									6.1	6.5	13.7
Sale of KWR, investment basis difference									0	0	10.6
Effect of foreign tax operations, net of foreign tax credits									1.6	1.1	(3.8)
Noncontrolling interests									(15)	(25.8)	(2.8)
Adjustment to investment basis									0	0	1.4
Non-vested stock expense									0	0	1
State income taxes, net of federal benefit									(3.8)	2.8	(1.5)
Other									0.7	(2.3)	(4.5)
Provision for (benefit from) income taxes	$ (17.2)	$ (3.7)	$ 8.8	$ (4.2)	$ 11.9	$ 5.5	$ (3.9)	$ 0.5	$ (16.3)	$ 14	$ 53.4

INCOME TAXES - Schedule of Defe

INCOME TAXES - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Deferred tax assets:
Foreign currency translation	$ 11.9	$ 131.9
Net operating loss carryforward and credits	103.7	85.2
Stock option expense	5.2	19.5
Hedging transactions	8.1	0
Marketable securities	0.1	0.4
Accrued reserves	0.1	0.1
Total deferred tax assets	129.1	237.1
Valuation allowance	(32.7)	(29.9)
Net deferred tax assets	96.4	207.2
Deferred tax liabilities:
Investment basis, depreciation, amortization and reserve differences	119.8	157.6
Hedging transactions	0	5
Prepaid expenses and other	9.2	13.9
Capitalized interest	1.4	2.3
Total deferred tax liabilities	130.4	178.8
Deferred tax asset (liability), net	34
Deferred tax asset (liability), net	$ 0	$ 28.4

INCOME TAXES - Additional Infor

INCOME TAXES - Additional Information (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Operating Loss Carryforwards [Line Items]
Deferred tax liability, income tax benefit due to the Tax Cuts and Jobs Act	$ 44,800,000
Increase (decrease) in valuation on deferred tax assets		$ 2,800,000	$ (7,800,000)
Unrecognized tax benefits	0	0	$ 0
Federal [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	146,300,000	146,300,000
State and Local Jurisdiction [Member] | California [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	146,700,000	146,700,000
State and Local Jurisdiction [Member] | Other States [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	9,100,000	9,100,000
Foreign Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	224,800,000	224,800,000
Tax credit	17,300,000	17,300,000
Tax Authority, Spain [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 49,000,000	$ 49,000,000

COMMITMENTS AND CONTINGENCIES -

COMMITMENTS AND CONTINGENCIES - Schedule of Future Minimum Lease Payments (Details) $ in Millions	Dec. 31, 2017USD ($)
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2,018	$ 2.8
2,019	2.1
2,020	1.8
2,021	1.4
2,022	1.2
Thereafter	0.4
Total minimum payments	$ 9.7

COMMITMENTS AND CONTINGENCIES94

COMMITMENTS AND CONTINGENCIES - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Rent Expense:
Net rent expense	$ 4.3	$ 4.4	$ 4.4
Guarantees:
Percentage of property level debt	1.00%
Capital Commitments:
Unfunded capital commitments	$ 63.6	24.7
Loans Payable [Member] | Performance Guarantee [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Commitments, fair value disclosure	0	$ 0
Guarantees:
Guarantees, maximum exposure	$ 69.4

STOCK COMPENSATION PLANS - Addi

STOCK COMPENSATION PLANS - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended			7 Months Ended	12 Months Ended					42 Months Ended
	Jun. 30, 2017	Jul. 31, 2014	Jun. 30, 2012	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2012	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Defined contribution plan, maximum employee contribution percentage					75.00%
Defined contribution plan, matching contributions					$ 0.3	$ 0.3	$ 0.3
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock, granted in period (in shares)					1,756,750	1,006,750
Restricted shares vested (in shares)					3,285,671	1,526,731
Restricted shares forfeited (in shares)					57,000	31,900
Shares withheld for tax withholding for share-based compensation (in shares)					1,460,251	693,942	435,415
Payments related to tax withholding for share-based compensation					$ 37.9	$ 14.7	$ 11.4
Compensation expense					38.4	65.1	$ 30.8
2012 Amended and Restated Plan [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)			3,200,000
Restricted stock, granted in period (in shares)									3,200,000
Vesting period			5 years
Restricted shares vested (in shares)				3,015,252
Restricted shares forfeited (in shares)				137,248
Compensation expense						$ 26.5
Percent of compensation expense						60.00%
2012 Amended and Restated Plan [Member] | Restricted Stock [Member] | Year One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage			10.00%
2012 Amended and Restated Plan [Member] | Restricted Stock [Member] | Year Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage			10.00%
2012 Amended and Restated Plan [Member] | Restricted Stock [Member] | Year Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage			10.00%
2012 Amended and Restated Plan [Member] | Restricted Stock [Member] | Year Four [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage			10.00%
2012 Amended and Restated Plan [Member] | Restricted Stock [Member] | Year Five [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage			60.00%
The Equity Plan [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock, granted in period (in shares)									5,000
2014 Amended and Restated Plan [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)		6,000,000
Restricted stock, granted in period (in shares)						1,000,000	1,700,000	3,300,000
Restricted shares vested (in shares)										3,397,906
Restricted shares forfeited (in shares)										121,300
Postvesting restriction period		3 years
Discount for postvesting restrictions		15.00%
Unrecognized compensation cost related to unvested restricted shares				$ 33.8	$ 33.8					$ 33.8
Compensation cost not yet recognized period for recognition					3 years
2014 Amended and Restated Plan [Member] | Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
2014 Amended and Restated Plan [Member] | Minimum [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
2014 Amended and Restated Plan [Member] | Maximum [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		5 years
2017 Amended and Restated Plan [Member] | Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	14,945,000
Restricted stock, granted in period (in shares)				1,700,000
Vesting period	3 years
Restricted shares vested (in shares)				0
Restricted shares forfeited (in shares)				0
Postvesting restriction period	3 years
Discount for postvesting restrictions	12.50%
Unrecognized compensation cost related to unvested restricted shares				$ 22.1	$ 22.1					$ 22.1
Compensation cost not yet recognized period for recognition					3 years
2017 Amended and Restated Plan [Member] | Performance Shares [Member] | Share-Based Compensation Award, MSCI Index Relative Performance [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	100.00%
2017 Amended and Restated Plan [Member] | Restricted Stock, Return On Equity [Member] | Year One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	33.33%
2017 Amended and Restated Plan [Member] | Restricted Stock, Return On Equity [Member] | Year Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	33.33%
2017 Amended and Restated Plan [Member] | Restricted Stock, Return On Equity [Member] | Year Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	33.33%
2017 Amended and Restated Plan [Member] | Restricted Stock, Time-Based [Member] | Year One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	33.33%
2017 Amended and Restated Plan [Member] | Restricted Stock, Time-Based [Member] | Year Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	33.33%
2017 Amended and Restated Plan [Member] | Restricted Stock, Time-Based [Member] | Year Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	33.33%

STOCK COMPENSATION PLANS - Sche

STOCK COMPENSATION PLANS - Schedule of Activity under the New Equity Plan (Details) - Restricted Stock [Member] - shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Number of Shares:
Nonvested at beginning of period (in shares)	5,722,464	6,274,345
Granted (in shares)	1,756,750	1,006,750
Vested (in shares)	(3,285,671)	(1,526,731)
Forfeited (in shares)	(57,000)	(31,900)
Nonvested at end of period (in shares)	4,136,543	5,722,464

EQUITY - Common Stock Repurchas

EQUITY - Common Stock Repurchase Program (Details) - USD ($)	Oct. 20, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2017	Feb. 25, 2016
Class of Stock [Line Items]
Stock repurchase program, authorized amount						$ 100,000,000
Shares retired due to common stock repurchase program		$ 29,900,000	$ 50,100,000		$ 79,900,000
Common Stock [Member]
Class of Stock [Line Items]
Shares retired due to common stock repurchase program (in shares)		1,645,816	2,440,556		4,086,372
Issuance of common stock (in shares)	37,226,695	37,226,695		8,625,000

EQUITY - KWE Acquisition (Detai

EQUITY - KWE Acquisition (Details) - USD ($) $ in Millions	Oct. 20, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Class of Stock [Line Items]
Special distributions and stub period dividend to noncontrolling interest holders		$ 719.8	$ 0	$ 0
Noncontrolling Interests [Member]
Class of Stock [Line Items]
Special distributions and stub period dividend to noncontrolling interest holders	$ (719.8)
Common Stock [Member]
Class of Stock [Line Items]
Issuance of common stock (in shares)	37,226,695	37,226,695		8,625,000

EQUITY - Preferred Stock (Detai

EQUITY - Preferred Stock (Details) $ / shares in Units, $ in Millions	Dec. 28, 2016USD ($)$ / sharesshares	May 19, 2015$ / sharesshares	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)shares	Dec. 31, 2015shares	Dec. 31, 2010USD ($)series$ / sharesshares
Class of Stock [Line Items]
Number of preferred stock series issued | series						2
Dividends | $	$ 0.7		$ 87.4	$ 66.7
Common Stock [Member]
Class of Stock [Line Items]
Conversion of preferred stock to common stock (in shares) | shares	3,366,973	8,554,948		3,366,973	8,554,948
Convertible preferred stock, conversion price per share (in dollars per share) | $ / shares	$ 9.67
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, stated value per share (in dollars per share) | $ / shares						$ 1,000
Convertible preferred stock issued (in shares) | shares						100,000
Issuance costs of preferred stock | $						$ 99.8
Convertible preferred stock, conversion price per share (in dollars per share) | $ / shares		$ 11.69
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Convertible preferred stock issued (in shares) | shares						32,550
Issuance costs of preferred stock | $						$ 32.5

EQUITY - Dividend Distributions

EQUITY - Dividend Distributions (Details) - USD ($) $ in Millions	Dec. 28, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Declared
Preferred Stock		$ 0	$ 2.8
Common Stock		87.4	63.9	$ 53.3
Total	$ 0.7	87.4	66.7
Paid
Preferred Stock		0	2.8
Common Stock		59.2	62
Total		59.2	64.8	$ 51.8
Series B Preferred Stock [Member]
Declared
Preferred Stock		0	2.8
Paid
Preferred Stock		$ 0	$ 2.8

EQUITY - Accumulated Other Comp

EQUITY - Accumulated Other Comprehensive Income (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period	$ 2,343.1
Unrealized gains (losses), arising during the period	136.5
Amounts reclassified out of AOCI during the period	2
Taxes on unrealized (losses) gains, arising during the period	(49.3)
Noncontrolling interest	(86.7)
Balance at end of period	1,577.5
Total Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period	(71.2)
Balance at end of period	(427.1)
Total Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at end of period	(68.7)
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period	(98.6)
Unrealized gains (losses), arising during the period	212.4
Amounts reclassified out of AOCI during the period	3.1
Taxes on unrealized (losses) gains, arising during the period	(57.1)
Noncontrolling interest	(106.4)
Balance at end of period	(46.6)
Foreign Currency Derivative Contracts [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period	27.5
Unrealized gains (losses), arising during the period	(76.2)
Amounts reclassified out of AOCI during the period	(1.1)
Taxes on unrealized (losses) gains, arising during the period	7.9
Noncontrolling interest	19.7
Balance at end of period	(22.2)
Marketable Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period	(0.1)
Unrealized gains (losses), arising during the period	0.3
Amounts reclassified out of AOCI during the period	0
Taxes on unrealized (losses) gains, arising during the period	(0.1)
Noncontrolling interest	0
Balance at end of period	$ 0.1

EQUITY - Noncontrolling Interes

EQUITY - Noncontrolling Interests (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Class of Stock [Line Items]
Noncontrolling interests	$ 211.9				$ 1,295.1				$ 211.9	$ 1,295.1
Distributions to noncontrolling interests									106	116.6	$ 239.2
Net income (loss)	$ 105.4	$ 9.8	$ 21.8	$ 1.2	$ 45.2	$ 13.1	$ (2.2)	$ 20.4	138	76.5	59
Contributions to noncontrolling interests									47.4	42.1	14.5
Noncontrolling Interests [Member]
Class of Stock [Line Items]
Distributions to noncontrolling interests									106	116.6	239.2
Net income (loss)									37.5	70.9	(15.7)
Comprehensive losses allocated to noncontrolling interest holders									86.7
Contributions to noncontrolling interests									$ 47.4	$ 42.1	$ 14.5

EARNINGS PER SHARE (Details)

EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. common shareholders
Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	$ 99.2	$ (8.9)	$ 9.4	$ 1	$ 14.4	$ (2.5)	$ (1.6)	$ (7.5)	$ 100.5	$ 2.8	$ 71.1
Net income and dividends allocated to participating securities									(1.1)	(1.7)	(2.9)
Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders, net of allocation to participating securities									99.4	1.1	68.2
Dividends declared on common shares									(86.5)	(62.3)	(51.1)
Undistributed earnings (losses) attributable to Kennedy-Wilson Holdings, Inc. common shareholders									$ 12.9	$ (61.2)	$ 17.1
Distributed earnings per share (in dollars per share)									$ 0.70	$ 0.56	$ 0.48
Undistributed earnings (losses) per share (in dollars per share)									0.13	(0.55)	0.18
Income per basic (in dollars per share)	$ 0.69	$ (0.08)	$ 0.08	$ 0	$ 0.13	$ (0.03)	$ (0.02)	$ (0.07)	0.83	0.01	0.66
Income per diluted (in dollars per share)	$ 0.69	$ (0.08)	$ 0.08	$ 0	$ 0.13	$ (0.03)	$ (0.02)	$ (0.07)	$ 0.83	$ 0.01	$ 0.66
Weighted average shares outstanding for basic (in shares)									119,147,192	109,094,530	103,261,513
Weighted average shares outstanding for diluted (in shares)									119,147,192	109,094,530	109,553,728
Dividends declared per common share (in dollars per share)									$ 0.7	$ 0.56	$ 0.48
Potentially dilutive securities (in shares)									1,080,092	3,259,345	6,292,215

SEGMENT INFORMATION - Segment I

SEGMENT INFORMATION - Segment Information, by Segment (Details) ft² in Millions, $ in Millions		3 Months Ended								12 Months Ended
		Dec. 31, 2017USD ($)office	Sep. 30, 2017USD ($)	Jun. 30, 2017USD ($)	Mar. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Sep. 30, 2016USD ($)	Jun. 30, 2016USD ($)	Mar. 31, 2016USD ($)	Dec. 31, 2017USD ($)ft²segmentline_of_businessoffice	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment										2
Number of main lines of businesses | line_of_business										5
Square footage of properties managed (in sq ft) | ft²										53.1
Segment Reporting Information, Income and Expense Activity [Abstract]
Rental										$ 504.7	$ 485.9	$ 404.8
Hotel										127.5	116.2	106.4
Sale of real estate										111.5	29.3	3.7
Investment management, property services, and research fees (includes $20.8, $28.9, and $37.8 million of related party fees, respectively)										51.7	59.4	69.3
Loan purchases, loan originations, and other										15.2	12.6	19.5
Total revenue		$ 181.5	$ 277.2	$ 177.8	$ 174.2	$ 180.4	$ 174.3	$ 176.5	$ 172.2	810.6	703.4	603.7
Operating expenses										558.3	493.7	406.4
Depreciation and amortization										212.5	198.2	166.3
Total operating expenses		206	231.2	178.3	155.4	194.3	166.1	168.6	162.9	770.8	691.9	572.7
Income from unconsolidated investments		20.2	12.9	13.4	22.6	67.3	31.7	8.4	19.2	69	126.6	97.4
Operating income		(4.3)	58.9	12.9	41.4	53.4	39.9	16.3	28.5	108.8	138.1	128.4
Gain on sale of real estate										226.7	130.7	72.4
Acquisition-related gains										0	16.2	108.1
Acquisition-related expenses										(4.4)	(9.5)	(37.3)
Interest expense										(217.7)	(191.6)	(156.7)
Other income (loss)										8.3	6.6	(2.5)
Income before benefit from (provision for) income taxes		88.2	6.1	30.6	(3)	57.1	18.6	(6.1)	20.9	121.7	90.5	112.4
(Provision for) benefit from income taxes		17.2	3.7	(8.8)	4.2	(11.9)	(5.5)	3.9	(0.5)	16.3	(14)	(53.4)
Net income		105.4	9.8	21.8	1.2	45.2	13.1	(2.2)	20.4	138	76.5	59
Net (income) loss attributable to the noncontrolling interests		(6.2)	(18.7)	(12.4)	(0.2)	(29.6)	(15.1)	1.1	(27.3)	(37.5)	(70.9)	15.7
Preferred dividends and accretion of preferred stock issuance costs		0	0	0	0	(1.2)	(0.5)	(0.5)	(0.6)	0	(2.8)	(3.6)
Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders		99.2	$ (8.9)	$ 9.4	$ 1	14.4	$ (2.5)	$ (1.6)	$ (7.5)	100.5	2.8	71.1
Property management and leasing fees										20.8	28.9	37.8
Segment Reporting Information, Assets [Abstract]
Assets	[1]	$ 7,724.8				7,656.6				7,724.8	7,656.6
Expenditures for long lived assets										$ (814.3)	(949.6)	(1,927.6)
Investments Segment [Member]
Segment Reporting Information [Line Items]
Average ownership interest in investments		62.00%								62.00%
Segment Reporting Information, Income and Expense Activity [Abstract]
Rental										$ 504.7	485.9	404.8
Hotel										127.5	116.2	106.4
Sale of real estate										111.5	29.3	3.7
Loan purchases, loan originations, and other										15.2	12.6	19.5
Total revenue										$ 758.9	644	534.4
KW Investment Management and Real Estate Services Segment [Member]
Segment Reporting Information [Line Items]
Number of offices | office		25								25
Segment Reporting Information, Income and Expense Activity [Abstract]
Investment management, property services, and research fees (includes $20.8, $28.9, and $37.8 million of related party fees, respectively)										$ 51.7	59.4	69.3
Total revenue										51.7	59.4	69.3
Depreciation and amortization										0.3	0	0
Operating Segments [Member] | Investments Segment [Member]
Segment Reporting Information, Income and Expense Activity [Abstract]
Depreciation and amortization										212.2	198.2	166.3
Total operating expenses										433.8	345.2	283.3
Income from unconsolidated investments										66.4	122.8	93.6
Operating income										179.3	223.4	178.4
Gain on sale of real estate										226.7	130.7	72.4
Acquisition-related gains										0	16.2	108.1
Acquisition-related expenses										(4.4)	(9.5)	(37.3)
Interest expense										(145.6)	(137.4)	(108.8)
Other income (loss)										(5.1)	(1.2)	(2.5)
Income before benefit from (provision for) income taxes										250.9	222.2	210.3
(Provision for) benefit from income taxes										(4.8)	5	(23.4)
Net income										246.1	227.2	186.9
Net (income) loss attributable to the noncontrolling interests										(37.5)	(70.9)	15.3
Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders										208.6	156.3	202.2
Segment Reporting Information, Assets [Abstract]
Assets		$ 7,563.7				7,375.5				7,563.7	7,375.5
Expenditures for long lived assets										(814.3)	(949.6)	(1,927.6)
Operating Segments [Member] | KW Investment Management and Real Estate Services Segment [Member]
Segment Reporting Information, Income and Expense Activity [Abstract]
Total operating expenses										54.3	54.9	69.7
Income from unconsolidated investments										2.6	3.8	3.8
Operating income										(0.3)	8.3	3.4
Net (income) loss attributable to the noncontrolling interests										0	0	0.4
Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders										(0.3)	8.3	3.8
Property management and leasing fees										20.8	28.9	37.8
Segment Reporting Information, Assets [Abstract]
Assets		70.5				78.1				70.5	78.1
Corporate [Member]
Segment Reporting Information, Income and Expense Activity [Abstract]
Total operating expenses										70.2	93.6	53.4
Operating income										(70.2)	(93.6)	(53.4)
Interest expense										(72.1)	(54.2)	(47.9)
Other income (loss)										13.4	7.8	0
Income before benefit from (provision for) income taxes										(128.9)	(140)	(101.3)
(Provision for) benefit from income taxes										21.1	(19)	(30)
Net income										(107.8)	(159)	(131.3)
Preferred dividends and accretion of preferred stock issuance costs											(2.8)	(3.6)
Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders										(107.8)	(161.8)	$ (134.9)
Segment Reporting Information, Assets [Abstract]
Assets		$ 90.6				$ 203				$ 90.6	$ 203
[1]	The assets and liabilities as of December 31, 2017 include $904.4 million (including cash held by consolidated investments of $39.1 million and real estate and acquired in place lease values, net of accumulated depreciation and amortization of $789.1 million) and $510.0 million (including investment debt of $475.3 million), respectively, from consolidated variable interest entities ("VIEs"). The assets and liabilities as of December 31, 2016 include $4.5 billion (including cash held by consolidated investments of $584.2 million and real estate and acquired in place lease values, net of accumulated depreciation and amortization of $3.6 billion) and $2.7 billion (including investment debt of $2.4 billion), respectively, from VIEs. These assets can only be used to settle obligations of the consolidated VIEs, and the liabilities do not have recourse to the Company.

SEGMENT INFORMATION - Revenue b

SEGMENT INFORMATION - Revenue by Geographical Region (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 181.5	$ 277.2	$ 177.8	$ 174.2	$ 180.4	$ 174.3	$ 176.5	$ 172.2	$ 810.6	$ 703.4	$ 603.7
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue									316.3	304.1	229.3
United Kingdom [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue									493.3	397.2	361.1
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue									$ 1	$ 2.1	$ 13.3

GUARANTOR AND NON-GUARANTOR 106

GUARANTOR AND NON-GUARANTOR FINANCIAL STATEMENTS - Condensed Consolidating Balance Sheet (Details) - USD ($) $ in Millions		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Assets
Cash and cash equivalents		$ 351.3	$ 885.7	$ 731.6	$ 937.7
Accounts receivable		62.7	44
Loan purchases and originations		84.7	87.7
Real estate and acquired in place lease values, net of accumulated depreciation and amortization		6,443.7	5,814.2
Unconsolidated investments		486.4	555.6
Investments in and advances to consolidated subsidiaries		0	0
Other assets		296	269.4
Total assets	[1]	7,724.8	7,656.6
Liabilities
Accounts payable		19.5	11.2
Accrued expenses and other liabilities		465.9	412.1
Total liabilities	[1]	6,147.3	5,313.5
Equity
Kennedy-Wilson Holdings, Inc. shareholders' equity		1,365.6	1,048
Noncontrolling interests		211.9	1,295.1
Total equity		1,577.5	2,343.1	2,865.1	3,043.9
Total liabilities and equity		7,724.8	7,656.6
Mortgages [Member]
Liabilities
Long-term debt		3,156.6	2,770.4
Unsecured Debt [Member]
Liabilities
Long-term debt		1,179.4	934.1
Unsecured Bonds [Member]
Liabilities
Long-term debt		1,325.9	1,185.7
Reportable Legal Entities [Member] | Parent [Member]
Assets
Cash and cash equivalents		0	0	0	0
Accounts receivable		0	0
Loan purchases and originations		0	0
Real estate and acquired in place lease values, net of accumulated depreciation and amortization		0	0
Unconsolidated investments		0	0
Investments in and advances to consolidated subsidiaries		1,394.5	1,063.8
Other assets		0	0
Total assets		1,394.5	1,063.8
Liabilities
Accounts payable		0	0
Accrued expenses and other liabilities		28.9	15.8
Total liabilities		28.9	15.8
Equity
Kennedy-Wilson Holdings, Inc. shareholders' equity		1,365.6	1,048
Noncontrolling interests		0	0
Total equity		1,365.6	1,048
Total liabilities and equity		1,394.5	1,063.8
Reportable Legal Entities [Member] | Kennedy-Wilson, Inc. [Member]
Assets
Cash and cash equivalents		33.4	106	80.2	38.2
Accounts receivable		0.9	0
Loan purchases and originations		0	0.3
Real estate and acquired in place lease values, net of accumulated depreciation and amortization		0	0
Unconsolidated investments		20.2	18.8
Investments in and advances to consolidated subsidiaries		2,642.1	2,073.1
Other assets		0	0.2
Total assets		2,696.6	2,198.4
Liabilities
Accounts payable		0.8	0.5
Accrued expenses and other liabilities		121.9	200
Total liabilities		1,302.1	1,134.6
Equity
Kennedy-Wilson Holdings, Inc. shareholders' equity		1,394.5	1,063.8
Noncontrolling interests		0	0
Total equity		1,394.5	1,063.8
Total liabilities and equity		2,696.6	2,198.4
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents		54.9	45.4	37	21
Accounts receivable		10.1	10.2
Loan purchases and originations		5.8	12.1
Real estate and acquired in place lease values, net of accumulated depreciation and amortization		1,750	1,482.5
Unconsolidated investments		298.3	380
Investments in and advances to consolidated subsidiaries		1,629.4	1,171.7
Other assets		73.1	66.9
Total assets		3,821.6	3,168.8
Liabilities
Accounts payable		2.5	1.6
Accrued expenses and other liabilities		39.7	157.2
Total liabilities		1,179.5	1,095.6
Equity
Kennedy-Wilson Holdings, Inc. shareholders' equity		2,642.1	2,073.2
Noncontrolling interests		0	0
Total equity		2,642.1	2,073.2
Total liabilities and equity		3,821.6	3,168.8
Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents		263	734.3	$ 614.4	$ 878.5
Accounts receivable		51.7	33.8
Loan purchases and originations		78.9	75.3
Real estate and acquired in place lease values, net of accumulated depreciation and amortization		4,693.7	4,331.7
Unconsolidated investments		167.9	156.8
Investments in and advances to consolidated subsidiaries		0	0
Other assets		222.9	202.3
Total assets		5,478.1	5,534.2
Liabilities
Accounts payable		16.2	9.1
Accrued expenses and other liabilities		275.4	39.1
Total liabilities		3,636.8	3,067.5
Equity
Kennedy-Wilson Holdings, Inc. shareholders' equity		1,629.4	1,171.6
Noncontrolling interests		211.9	1,295.1
Total equity		1,841.3	2,466.7
Total liabilities and equity		5,478.1	5,534.2
Reportable Legal Entities [Member] | Mortgages [Member] | Parent [Member]
Liabilities
Long-term debt		0	0
Reportable Legal Entities [Member] | Mortgages [Member] | Kennedy-Wilson, Inc. [Member]
Liabilities
Long-term debt		0	0
Reportable Legal Entities [Member] | Mortgages [Member] | Guarantor Subsidiaries [Member]
Liabilities
Long-term debt		1,137.3	936.8
Reportable Legal Entities [Member] | Mortgages [Member] | Non-Guarantor Subsidiaries [Member]
Liabilities
Long-term debt		2,019.3	1,833.6
Reportable Legal Entities [Member] | Unsecured Debt [Member] | Parent [Member]
Liabilities
Long-term debt		0	0
Reportable Legal Entities [Member] | Unsecured Debt [Member] | Kennedy-Wilson, Inc. [Member]
Liabilities
Long-term debt		1,179.4	934.1
Reportable Legal Entities [Member] | Unsecured Debt [Member] | Guarantor Subsidiaries [Member]
Liabilities
Long-term debt		0	0
Reportable Legal Entities [Member] | Unsecured Debt [Member] | Non-Guarantor Subsidiaries [Member]
Liabilities
Long-term debt		0	0
Reportable Legal Entities [Member] | Unsecured Bonds [Member] | Parent [Member]
Liabilities
Long-term debt		0	0
Reportable Legal Entities [Member] | Unsecured Bonds [Member] | Kennedy-Wilson, Inc. [Member]
Liabilities
Long-term debt		0	0
Reportable Legal Entities [Member] | Unsecured Bonds [Member] | Guarantor Subsidiaries [Member]
Liabilities
Long-term debt		0	0
Reportable Legal Entities [Member] | Unsecured Bonds [Member] | Non-Guarantor Subsidiaries [Member]
Liabilities
Long-term debt		1,325.9	1,185.7
Elimination [Member]
Assets
Cash and cash equivalents		0	0
Accounts receivable		0	0
Loan purchases and originations		0	0
Real estate and acquired in place lease values, net of accumulated depreciation and amortization		0	0
Unconsolidated investments		0	0
Investments in and advances to consolidated subsidiaries		(5,666)	(4,308.6)
Other assets		0	0
Total assets		(5,666)	(4,308.6)
Liabilities
Accounts payable		0	0
Accrued expenses and other liabilities			0
Total liabilities		0	0
Equity
Kennedy-Wilson Holdings, Inc. shareholders' equity		(5,666)	(4,308.6)
Noncontrolling interests		0	0
Total equity		(5,666)	(4,308.6)
Total liabilities and equity		(5,666)	(4,308.6)
Elimination [Member] | Mortgages [Member]
Liabilities
Long-term debt			0
Elimination [Member] | Unsecured Debt [Member]
Liabilities
Long-term debt		0	0
Elimination [Member] | Unsecured Bonds [Member]
Liabilities
Long-term debt		$ 0	$ 0
[1]	The assets and liabilities as of December 31, 2017 include $904.4 million (including cash held by consolidated investments of $39.1 million and real estate and acquired in place lease values, net of accumulated depreciation and amortization of $789.1 million) and $510.0 million (including investment debt of $475.3 million), respectively, from consolidated variable interest entities ("VIEs"). The assets and liabilities as of December 31, 2016 include $4.5 billion (including cash held by consolidated investments of $584.2 million and real estate and acquired in place lease values, net of accumulated depreciation and amortization of $3.6 billion) and $2.7 billion (including investment debt of $2.4 billion), respectively, from VIEs. These assets can only be used to settle obligations of the consolidated VIEs, and the liabilities do not have recourse to the Company.

GUARANTOR AND NON-GUARANTOR 107

GUARANTOR AND NON-GUARANTOR FINANCIAL STATEMENTS - Consolidating Statement of Operations (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenue
Rental									$ 504.7	$ 485.9	$ 404.8
Hotel									127.5	116.2	106.4
Sale of real estate									111.5	29.3	3.7
Investment management, property services, and research fees									51.7	59.4	69.3
Loan purchases, loan originations, and other									15.2	12.6	19.5
Total revenue	$ 181.5	$ 277.2	$ 177.8	$ 174.2	$ 180.4	$ 174.3	$ 176.5	$ 172.2	810.6	703.4	603.7
Operating expenses
Rental operating									151.2	135.4	108
Hotel operating									100.3	96.3	89.9
Cost of real estate sold									(80.2)	(22.1)	(2.6)
Commission and marketing									7.2	8	7.3
Compensation and related									177.2	186.5	154.8
General and administrative									42.2	45.4	43.8
Depreciation and amortization									212.5	198.2	166.3
Total operating expenses	206	231.2	178.3	155.4	194.3	166.1	168.6	162.9	770.8	691.9	572.7
Income from unconsolidated investments	20.2	12.9	13.4	22.6	67.3	31.7	8.4	19.2	69	126.6	97.4
Income from consolidated subsidiaries									0	0	0
Operating income	(4.3)	58.9	12.9	41.4	53.4	39.9	16.3	28.5	108.8	138.1	128.4
Non-operating income (expense)
Gain on sale of real estate									226.7	130.7	72.4
Acquisition-related gains									0	16.2	108.1
Acquisition-related expenses									(4.4)	(9.5)	(37.3)
Interest expense									(217.7)	(191.6)	(156.7)
Other income (loss)									8.3	6.6	(2.5)
Income before benefit from (provision for) income taxes	88.2	6.1	30.6	(3)	57.1	18.6	(6.1)	20.9	121.7	90.5	112.4
Benefit from (provision for) income taxes	17.2	3.7	(8.8)	4.2	(11.9)	(5.5)	3.9	(0.5)	16.3	(14)	(53.4)
Net income	105.4	9.8	21.8	1.2	45.2	13.1	(2.2)	20.4	138	76.5	59
Net (income) loss attributable to the noncontrolling interests	(6.2)	(18.7)	(12.4)	(0.2)	(29.6)	(15.1)	1.1	(27.3)	(37.5)	(70.9)	15.7
Net (loss) income attributable to Kennedy-Wilson Holdings, Inc.									100.5	5.6	74.7
Preferred dividends and accretion of preferred stock issuance costs	0	0	0	0	(1.2)	(0.5)	(0.5)	(0.6)	0	(2.8)	(3.6)
Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	$ 99.2	$ (8.9)	$ 9.4	$ 1	$ 14.4	$ (2.5)	$ (1.6)	$ (7.5)	100.5	2.8	71.1
Reportable Legal Entities [Member] | Parent [Member]
Revenue
Rental									0	0	0
Hotel									0	0	0
Sale of real estate									0	0	0
Investment management, property services, and research fees									0	0	0
Loan purchases, loan originations, and other									0	0	0
Total revenue									0	0	0
Operating expenses
Rental operating									0	0	0
Hotel operating									0	0	0
Cost of real estate sold									0	0	0
Commission and marketing									0	0	0
Compensation and related									38.4	65.1	30.8
General and administrative									0	0	0
Depreciation and amortization									0	0	0
Total operating expenses									38.4	65.1	30.8
Income from unconsolidated investments									0	0	0
Income from consolidated subsidiaries									176.4	141.6	89.8
Operating income									138	76.5	59
Non-operating income (expense)
Gain on sale of real estate									0	0	0
Acquisition-related gains									0	0	0
Acquisition-related expenses									0	0	0
Interest expense									0	0	0
Other income (loss)									0	0	0
Income before benefit from (provision for) income taxes									138	76.5	59
Benefit from (provision for) income taxes									0	0	0
Net income									138	76.5	59
Net (income) loss attributable to the noncontrolling interests									0	0	0
Net (loss) income attributable to Kennedy-Wilson Holdings, Inc.									138	76.5	59
Preferred dividends and accretion of preferred stock issuance costs									0	(2.8)	(3.6)
Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders									138	73.7	55.4
Reportable Legal Entities [Member] | Kennedy-Wilson, Inc. [Member]
Revenue
Rental									0	0	0
Hotel									0	0	0
Sale of real estate									0	0	0
Investment management, property services, and research fees									0	0	0
Loan purchases, loan originations, and other									0	0.1	0.1
Total revenue									0	0.1	0.1
Operating expenses
Rental operating									0	0	0
Hotel operating									0	0	0
Cost of real estate sold									0	0	0
Commission and marketing									0	0	1.6
Compensation and related									78.3	66.4	50.1
General and administrative									14	15.9	15
Depreciation and amortization									1.4	1.3	0.8
Total operating expenses									93.7	83.6	67.5
Income from unconsolidated investments									3.7	5.6	0.4
Income from consolidated subsidiaries									307.5	285.1	220.1
Operating income									217.5	207.2	153.1
Non-operating income (expense)
Gain on sale of real estate									0	0	0
Acquisition-related gains									0	0	0
Acquisition-related expenses									0	0	(0.8)
Interest expense									(72.1)	(54.2)	(47.9)
Other income (loss)									9.9	7.7	1
Income before benefit from (provision for) income taxes									155.3	160.7	105.4
Benefit from (provision for) income taxes									21.1	(19.1)	(15.6)
Net income									176.4	141.6	89.8
Net (income) loss attributable to the noncontrolling interests									0	0	0
Net (loss) income attributable to Kennedy-Wilson Holdings, Inc.									176.4	141.6	89.8
Preferred dividends and accretion of preferred stock issuance costs									0	0	0
Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders									176.4	141.6	89.8
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Revenue
Rental									143.9	114	65.4
Hotel									0	0	0
Sale of real estate									2.3	12.2	0
Investment management, property services, and research fees									43.4	53.7	66.1
Loan purchases, loan originations, and other									0.5	1.1	1.2
Total revenue									190.1	181	132.7
Operating expenses
Rental operating									54.7	48.7	25.3
Hotel operating									0	0	0
Cost of real estate sold									(1.8)	(9.6)
Commission and marketing									7	7.3	4.6
Compensation and related									52.8	47.5	65.4
General and administrative									17.6	16.3	16.7
Depreciation and amortization									50.1	39.5	20.8
Total operating expenses									184	168.9	132.8
Income from unconsolidated investments									33	64	79.3
Income from consolidated subsidiaries									256.2	204.9	95.9
Operating income									295.3	281	175.1
Non-operating income (expense)
Gain on sale of real estate									46.6	19.6	0.1
Acquisition-related gains									0	7.6	70
Acquisition-related expenses									(1.3)	(2.3)	(0.7)
Interest expense									(38)	(25.4)	(15.8)
Other income (loss)									1.6	(2.7)	(1.7)
Income before benefit from (provision for) income taxes									304.2	277.8	227
Benefit from (provision for) income taxes									3.3	7.3	(6.9)
Net income									307.5	285.1	220.1
Net (income) loss attributable to the noncontrolling interests									0	0	0
Net (loss) income attributable to Kennedy-Wilson Holdings, Inc.									307.5	285.1	220.1
Preferred dividends and accretion of preferred stock issuance costs									0	0	0
Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders									307.5	285.1	220.1
Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member]
Revenue
Rental									360.8	371.9	339.4
Hotel									127.5	116.2	106.4
Sale of real estate									109.2	17.1	3.7
Investment management, property services, and research fees									8.3	5.7	3.2
Loan purchases, loan originations, and other									14.7	11.4	18.2
Total revenue									620.5	522.3	470.9
Operating expenses
Rental operating									96.5	86.7	82.7
Hotel operating									100.3	96.3	89.9
Cost of real estate sold									(78.4)	(12.5)	(2.6)
Commission and marketing									0.2	0.7	1.1
Compensation and related									7.7	7.5	8.5
General and administrative									10.6	13.2	12.1
Depreciation and amortization									161	157.4	144.7
Total operating expenses									454.7	374.3	341.6
Income from unconsolidated investments									32.3	57	17.7
Income from consolidated subsidiaries									0	0	0
Operating income									198.1	205	147
Non-operating income (expense)
Gain on sale of real estate									180.1	111.1	72.3
Acquisition-related gains									0	8.6	38.1
Acquisition-related expenses									(3.1)	(7.2)	(35.8)
Interest expense									(107.6)	(112)	(93)
Other income (loss)									(3.2)	1.6	(1.8)
Income before benefit from (provision for) income taxes									264.3	207.1	126.8
Benefit from (provision for) income taxes									(8.1)	(2.2)	(30.9)
Net income									256.2	204.9	95.9
Net (income) loss attributable to the noncontrolling interests									(37.5)	(70.9)	15.7
Net (loss) income attributable to Kennedy-Wilson Holdings, Inc.									218.7	134	111.6
Preferred dividends and accretion of preferred stock issuance costs									0	0	0
Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders									218.7	134	111.6
Elimination [Member]
Revenue
Rental									0	0	0
Hotel									0	0	0
Sale of real estate									0	0	0
Investment management, property services, and research fees									0	0	0
Loan purchases, loan originations, and other									0	0	0
Total revenue									0	0	0
Operating expenses
Rental operating									0	0	0
Hotel operating									0	0	0
Cost of real estate sold									0	0	0
Commission and marketing									0	0	0
Compensation and related									0	0	0
General and administrative									0	0	0
Depreciation and amortization									0	0	0
Total operating expenses									0	0	0
Income from unconsolidated investments									0	0	0
Income from consolidated subsidiaries									(740.1)	(631.6)	(405.8)
Operating income									(740.1)	(631.6)	(405.8)
Non-operating income (expense)
Gain on sale of real estate									0	0	0
Acquisition-related gains									0	0	0
Acquisition-related expenses									0	0	0
Interest expense									0	0	0
Other income (loss)									0	0	0
Income before benefit from (provision for) income taxes									(740.1)	(631.6)	(405.8)
Benefit from (provision for) income taxes									0	0	0
Net income									(740.1)	(631.6)	(405.8)
Net (income) loss attributable to the noncontrolling interests									0	0	0
Net (loss) income attributable to Kennedy-Wilson Holdings, Inc.									(740.1)	(631.6)	(405.8)
Preferred dividends and accretion of preferred stock issuance costs									0	0	0
Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders									$ (740.1)	$ (631.6)	$ (405.8)

GUARANTOR AND NON-GUARANTOR 108

GUARANTOR AND NON-GUARANTOR FINANCIAL STATEMENTS - Consolidated Statement of Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	$ 105.4	$ 9.8	$ 21.8	$ 1.2	$ 45.2	$ 13.1	$ (2.2)	$ 20.4	$ 138	$ 76.5	$ 59
Other comprehensive income (loss), net of tax:
Unrealized gain on marketable securities									0.2	0.1	0.1
Unrealized foreign currency translation gain									155.3	(164.1)	(138.3)
Amounts reclassified out of AOCI during the period									2	3.4	9.7
Unrealized forward contract forward currency loss									(68.3)	(100.1)	6.3
Total other comprehensive income (loss) for the period									89.2	(260.7)	(122.2)
Comprehensive income (loss)									227.2	(184.2)	(63.2)
Comprehensive loss attributable to noncontrolling interests									(124.2)	166.3	118.4
Comprehensive (loss) income attributable to Kennedy-Wilson Holdings, Inc.									103	(17.9)	55.2
Reportable Legal Entities [Member] | Parent [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)									138	76.5	59
Other comprehensive income (loss), net of tax:
Unrealized gain on marketable securities									0.2	0.1	0.1
Unrealized foreign currency translation gain									155.3	(164.1)	(138.3)
Amounts reclassified out of AOCI during the period									2	3.4	9.7
Unrealized forward contract forward currency loss									(68.3)	(100.1)	6.3
Total other comprehensive income (loss) for the period									89.2	(260.7)	(122.2)
Comprehensive income (loss)									227.2	(184.2)	(63.2)
Comprehensive loss attributable to noncontrolling interests									0	0	0
Comprehensive (loss) income attributable to Kennedy-Wilson Holdings, Inc.									227.2	(184.2)	(63.2)
Reportable Legal Entities [Member] | Kennedy-Wilson, Inc. [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)									176.4	141.6	89.8
Other comprehensive income (loss), net of tax:
Unrealized gain on marketable securities									0.2	0.1	0.1
Unrealized foreign currency translation gain									155.3	(164.1)	(138.3)
Amounts reclassified out of AOCI during the period									2	3.4	9.7
Unrealized forward contract forward currency loss									(68.3)	(100.1)	6.3
Total other comprehensive income (loss) for the period									89.2	(260.7)	(122.2)
Comprehensive income (loss)									265.6	(119.1)	(32.4)
Comprehensive loss attributable to noncontrolling interests									0	0	0
Comprehensive (loss) income attributable to Kennedy-Wilson Holdings, Inc.									265.6	(119.1)	(32.4)
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)									307.5	285.1	220.1
Other comprehensive income (loss), net of tax:
Unrealized gain on marketable securities									0	0	0
Unrealized foreign currency translation gain									30.6	(23.1)	(13.6)
Amounts reclassified out of AOCI during the period									0	0	(0.6)
Unrealized forward contract forward currency loss									(21.9)	21.3	11.5
Total other comprehensive income (loss) for the period									8.7	(1.8)	(2.7)
Comprehensive income (loss)									316.2	283.3	217.4
Comprehensive loss attributable to noncontrolling interests									0	0	0
Comprehensive (loss) income attributable to Kennedy-Wilson Holdings, Inc.									316.2	283.3	217.4
Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)									256.2	204.9	95.9
Other comprehensive income (loss), net of tax:
Unrealized gain on marketable securities									0	0	0
Unrealized foreign currency translation gain									458.7	(161.9)	(29.6)
Amounts reclassified out of AOCI during the period									2	3.4	10.3
Unrealized forward contract forward currency loss									(46.4)	(121.4)	(5.2)
Total other comprehensive income (loss) for the period									414.3	(279.9)	(24.5)
Comprehensive income (loss)									670.5	(75)	71.4
Comprehensive loss attributable to noncontrolling interests									(124.2)	166.3	118.4
Comprehensive (loss) income attributable to Kennedy-Wilson Holdings, Inc.									546.3	91.3	189.8
Elimination [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)									(740.1)	(631.6)	(405.8)
Other comprehensive income (loss), net of tax:
Unrealized gain on marketable securities									(0.2)	(0.1)	(0.1)
Unrealized foreign currency translation gain									(644.6)	349.1	181.5
Amounts reclassified out of AOCI during the period									(4)	(6.8)	(19.4)
Unrealized forward contract forward currency loss									136.6	200.2	(12.6)
Total other comprehensive income (loss) for the period									(512.2)	542.4	149.4
Comprehensive income (loss)									(1,252.3)	(89.2)	(256.4)
Comprehensive loss attributable to noncontrolling interests									0	0	0
Comprehensive (loss) income attributable to Kennedy-Wilson Holdings, Inc.									$ (1,252.3)	$ (89.2)	$ (256.4)

GUARANTOR AND NON-GUARANTOR 109

GUARANTOR AND NON-GUARANTOR FINANCIAL STATEMENTS - Condensed Consolidating Statements of Cash Flows (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	$ 73	$ 102.9	$ 178.2
Cash flows from investing activities:
Additions to loans		(16.1)	(235.8)
Collections of loans	16.9	146.9	27.8
Nonrefundable escrow deposits	0	0	(3.8)
Net proceeds from sale of real estate	659.1	540.1	622.6
Purchases of and additions to real estate	(814.3)	(949.6)	(1,927.6)
Investment in marketable securities	(0.8)	(3.2)	(5)
Proceeds from sale of marketable securities	1.1	0	6.2
Investing distributions from unconsolidated investments	133.4	89.6	180
Contributions to unconsolidated investments	(79.9)	(124.9)	(184.3)
Proceeds from settlement of foreign currency derivative contracts	(2.8)	38.6	41.5
Purchases of foreign currency derivative contracts	(0.4)	(8.1)	(5.2)
Additions to development project asset	(19.4)	0	0
Proceeds from development project asset	36.9	0	0
(Investments in) distributions from consolidated subsidiaries, net	0	0	0
Net cash used in investing activities	(70.2)	(286.7)	(1,483.6)
Cash flow from financing activities:
Borrowings under senior notes payable	0	250	0
Repayment of senior notes payable	(55)	0	0
Costs associated with KWE Transaction	(55.8)	0	0
Borrowings under lines of credit	800	125	95
Repayment of lines of credit	(500)	(125)	(220)
Borrowings under investment debt	848.3	1,189.7	2,087.9
Repayment of investment debt	(684.7)	(608.1)	(681.1)
Debt issue costs	(9.5)	(10.8)	(21.7)
Issuance of common stock	0	0	215
Repurchase of common stock	(67.7)	(64.8)	(11.4)
Cash paid to acquire noncontrolling interest in KWE	(719.8)	0	0
Dividends paid	(59.2)	(64.8)	(51.8)
Acquisition of noncontrolling interests	(3.3)	(196.9)	(68.4)
Contributions from noncontrolling interests	47.4	42.1	14.5
Distributions to noncontrolling interests	(106)	(116.6)	(239.2)
Net cash (used in) provided by financing activities	(565.3)	419.8	1,118.8
Effect of currency exchange rate changes on cash and cash equivalents	28.1	(81.9)	(19.5)
Net change in cash and cash equivalents	(534.4)	154.1	(206.1)
Cash and cash equivalents, beginning of year	885.7	731.6	937.7
Cash and cash equivalents, end of year	351.3	885.7	731.6
Reportable Legal Entities [Member] | Parent [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	(15.3)	(0.2)	5.3
Cash flows from investing activities:
Additions to loans		0	0
Collections of loans	0	0	0
Nonrefundable escrow deposits			0
Net proceeds from sale of real estate	0	0	0
Purchases of and additions to real estate	0	0	0
Investment in marketable securities	0	0	0
Proceeds from sale of marketable securities	0		0
Investing distributions from unconsolidated investments	0	0	0
Contributions to unconsolidated investments	0	0	0
Proceeds from settlement of foreign currency derivative contracts	0	0	0
Purchases of foreign currency derivative contracts	0	0	0
Additions to development project asset	0
Proceeds from development project asset	0
(Investments in) distributions from consolidated subsidiaries, net	198	129.8	(157.1)
Net cash used in investing activities	198	129.8	(157.1)
Cash flow from financing activities:
Borrowings under senior notes payable		0
Repayment of senior notes payable	0
Costs associated with KWE Transaction	(55.8)
Borrowings under lines of credit	0	0	0
Repayment of lines of credit	0	0	0
Borrowings under investment debt	0	0	0
Repayment of investment debt	0	0	0
Debt issue costs	0	0	0
Issuance of common stock			215
Repurchase of common stock	(67.7)	(64.8)	(11.4)
Cash paid to acquire noncontrolling interest in KWE	0
Dividends paid	(59.2)	(64.8)	(51.8)
Acquisition of noncontrolling interests	0	0	0
Contributions from noncontrolling interests	0	0	0
Distributions to noncontrolling interests	0	0	0
Net cash (used in) provided by financing activities	(182.7)	(129.6)	151.8
Effect of currency exchange rate changes on cash and cash equivalents	0	0	0
Net change in cash and cash equivalents	0	0	0
Cash and cash equivalents, beginning of year	0	0	0
Cash and cash equivalents, end of year	0	0	0
Reportable Legal Entities [Member] | Kennedy-Wilson, Inc. [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	(182.8)	(207.9)	67.4
Cash flows from investing activities:
Additions to loans		(11.6)	(41)
Collections of loans	0	6.6	0
Nonrefundable escrow deposits			0
Net proceeds from sale of real estate	0	0	0
Purchases of and additions to real estate	0	0	0
Investment in marketable securities	0	0	0
Proceeds from sale of marketable securities	0		0
Investing distributions from unconsolidated investments	0		0
Contributions to unconsolidated investments	0	(1)	(2.9)
Proceeds from settlement of foreign currency derivative contracts	(2.8)	38.6	23.4
Purchases of foreign currency derivative contracts	(0.4)	(8.1)	(3.6)
Additions to development project asset	0
Proceeds from development project asset	0
(Investments in) distributions from consolidated subsidiaries, net	(126.2)	(36.9)	128.4
Net cash used in investing activities	(129.4)	(12.4)	104.3
Cash flow from financing activities:
Borrowings under senior notes payable		250
Repayment of senior notes payable	(55)
Costs associated with KWE Transaction	0
Borrowings under lines of credit	800	125	95
Repayment of lines of credit	(500)	(125)	(220)
Borrowings under investment debt	0	0	0
Repayment of investment debt	0	0	0
Debt issue costs	(5.4)	(3.9)	(4.7)
Issuance of common stock			0
Repurchase of common stock	0	0	0
Cash paid to acquire noncontrolling interest in KWE	0
Dividends paid	0	0	0
Acquisition of noncontrolling interests	0	0	0
Contributions from noncontrolling interests	0	0	0
Distributions to noncontrolling interests	0	0	0
Net cash (used in) provided by financing activities	239.6	246.1	(129.7)
Effect of currency exchange rate changes on cash and cash equivalents	0	0	0
Net change in cash and cash equivalents	(72.6)	25.8	42
Cash and cash equivalents, beginning of year	106	80.2	38.2
Cash and cash equivalents, end of year	33.4	106	80.2
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	(51.4)	102.2	105.4
Cash flows from investing activities:
Additions to loans		(4.5)	0
Collections of loans	6.4	4.9	8.8
Nonrefundable escrow deposits			0
Net proceeds from sale of real estate	130.8	109.2	0
Purchases of and additions to real estate	(422.5)	(404.2)	(220.3)
Investment in marketable securities	(0.8)	(3.2)	(5)
Proceeds from sale of marketable securities	1.1		6.2
Investing distributions from unconsolidated investments	95.2	54.5	83.1
Contributions to unconsolidated investments	(49.8)	(104.4)	(81.5)
Proceeds from settlement of foreign currency derivative contracts	0	0	0
Purchases of foreign currency derivative contracts	0	0	0
Additions to development project asset	0
Proceeds from development project asset	0
(Investments in) distributions from consolidated subsidiaries, net	166.3	(95.4)	(40)
Net cash used in investing activities	(73.3)	(443.1)	(248.7)
Cash flow from financing activities:
Borrowings under senior notes payable		0
Repayment of senior notes payable	0
Costs associated with KWE Transaction	0
Borrowings under lines of credit	0	0	0
Repayment of lines of credit	0	0	0
Borrowings under investment debt	239.5	530.9	168.1
Repayment of investment debt	(103.4)	(179.5)	(7.4)
Debt issue costs	(1.9)	(2.1)	(1.4)
Issuance of common stock			0
Repurchase of common stock	0	0	0
Cash paid to acquire noncontrolling interest in KWE	0
Dividends paid	0	0	0
Acquisition of noncontrolling interests	0	0	0
Contributions from noncontrolling interests	0	0	0
Distributions to noncontrolling interests	0	0	0
Net cash (used in) provided by financing activities	134.2	349.3	159.3
Effect of currency exchange rate changes on cash and cash equivalents	0	0	0
Net change in cash and cash equivalents	9.5	8.4	16
Cash and cash equivalents, beginning of year	45.4	37	21
Cash and cash equivalents, end of year	54.9	45.4	37
Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	322.5	208.8	0.1
Cash flows from investing activities:
Additions to loans		0	(194.8)
Collections of loans	10.5	135.4	19
Nonrefundable escrow deposits			(3.8)
Net proceeds from sale of real estate	528.3	430.9	622.6
Purchases of and additions to real estate	(391.8)	(545.4)	(1,707.3)
Investment in marketable securities	0	0	0
Proceeds from sale of marketable securities	0		0
Investing distributions from unconsolidated investments	38.2	35.1	96.9
Contributions to unconsolidated investments	(30.1)	(19.5)	(99.9)
Proceeds from settlement of foreign currency derivative contracts	0	0	18.1
Purchases of foreign currency derivative contracts	0	0	(1.6)
Additions to development project asset	(19.4)
Proceeds from development project asset	36.9
(Investments in) distributions from consolidated subsidiaries, net	(238.1)	2.5	68.7
Net cash used in investing activities	(65.5)	39	(1,182.1)
Cash flow from financing activities:
Borrowings under senior notes payable		0
Repayment of senior notes payable	0
Costs associated with KWE Transaction	0
Borrowings under lines of credit	0	0	0
Repayment of lines of credit	0	0	0
Borrowings under investment debt	608.8	658.8	1,919.8
Repayment of investment debt	(581.3)	(428.6)	(673.7)
Debt issue costs	(2.2)	(4.8)	(15.6)
Issuance of common stock			0
Repurchase of common stock	0	0	0
Cash paid to acquire noncontrolling interest in KWE	(719.8)
Dividends paid	0	0	0
Acquisition of noncontrolling interests	(3.3)	(196.9)	(68.4)
Contributions from noncontrolling interests	47.4	42.1	14.5
Distributions to noncontrolling interests	(106)	(116.6)	(239.2)
Net cash (used in) provided by financing activities	(756.4)	(46)	937.4
Effect of currency exchange rate changes on cash and cash equivalents	28.1	(81.9)	(19.5)
Net change in cash and cash equivalents	(471.3)	119.9	(264.1)
Cash and cash equivalents, beginning of year	734.3	614.4	878.5
Cash and cash equivalents, end of year	$ 263	$ 734.3	$ 614.4

UNAUDITED QUARTERLY INFORMAT110

UNAUDITED QUARTERLY INFORMATION (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Revenues	$ 181.5	$ 277.2	$ 177.8	$ 174.2	$ 180.4	$ 174.3	$ 176.5	$ 172.2	$ 810.6	$ 703.4	$ 603.7
Operating expenses	206	231.2	178.3	155.4	194.3	166.1	168.6	162.9	770.8	691.9	572.7
Income from unconsolidated investments	20.2	12.9	13.4	22.6	67.3	31.7	8.4	19.2	69	126.6	97.4
Operating income	(4.3)	58.9	12.9	41.4	53.4	39.9	16.3	28.5	108.8	138.1	128.4
Non-operating (expenses) income	92.5	(52.8)	17.7	(44.4)	3.7	(21.3)	(22.4)	(7.6)
Income before benefit from (provision for) income taxes	88.2	6.1	30.6	(3)	57.1	18.6	(6.1)	20.9	121.7	90.5	112.4
(Provision for) benefit from income taxes	17.2	3.7	(8.8)	4.2	(11.9)	(5.5)	3.9	(0.5)	16.3	(14)	(53.4)
Net income	105.4	9.8	21.8	1.2	45.2	13.1	(2.2)	20.4	138	76.5	59
Net (income) loss attributable to noncontrolling interests	(6.2)	(18.7)	(12.4)	(0.2)	(29.6)	(15.1)	1.1	(27.3)	(37.5)	(70.9)	15.7
Preferred dividends and accretion of preferred stock issuance costs	0	0	0	0	(1.2)	(0.5)	(0.5)	(0.6)	0	(2.8)	(3.6)
Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	$ 99.2	$ (8.9)	$ 9.4	$ 1	$ 14.4	$ (2.5)	$ (1.6)	$ (7.5)	$ 100.5	$ 2.8	$ 71.1
Basic (loss) earnings per share (in dollars per share)	$ 0.69	$ (0.08)	$ 0.08	$ 0	$ 0.13	$ (0.03)	$ (0.02)	$ (0.07)	$ 0.83	$ 0.01	$ 0.66
Income per diluted (in dollars per share)	$ 0.69	$ (0.08)	$ 0.08	$ 0	$ 0.13	$ (0.03)	$ (0.02)	$ (0.07)	$ 0.83	$ 0.01	$ 0.66

SUBSEQUENT EVENTS (Details)

SUBSEQUENT EVENTS (Details) - Revolving Credit Facility [Member] - Line of Credit [Member] - USD ($) $ in Millions	Oct. 03, 2017	Dec. 31, 2017	Feb. 26, 2018	Dec. 31, 2016
Subsequent Event [Line Items]
Debt (excluding loan fees)		$ 300		$ 0
Subsequent Event [Member]
Subsequent Event [Line Items]
Debt (excluding loan fees)			$ 375
A&R Facility [Member]
Subsequent Event [Line Items]
Proceeds from issuance of debt	$ 200	400
Remaining borrowing capacity		$ 400
A&R Facility [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Proceeds from issuance of debt			75
Remaining borrowing capacity			$ 325

Schedule III - Real Estate a112

Schedule III - Real Estate and Accumulated Depreciation (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)aUnit	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 3,180.8
Initial Cost
Land	1,637.4
Building & Improvements	4,698
Costs Capitalized Subsequent to Acquisition
Improvements	511.2
Gross Balance at December 31, 2016
Land	1,509.4
Building & Improvements	5,069.2
Total	6,578.6	$ 5,805.4	$ 5,624.2	$ 4,067.1
Accumulated Depreciation	$ (344)	$ (230.3)	$ (139.1)	$ (61.9)
Depreciable Life in Years	39 years
Aggregate tax basis of all properties	$ 5,988.1
Southern California [Member] | Commercial [Member] | Commercial Building, Constructed 1955, 1981, 1982 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	34.2
Initial Cost
Land	11.2
Building & Improvements	18.5
Costs Capitalized Subsequent to Acquisition
Improvements	34.6
Gross Balance at December 31, 2016
Land	11.5
Building & Improvements	54.1
Total	65.6
Accumulated Depreciation	$ (3.3)
Depreciable Life in Years	39 years
Southern California [Member] | Commercial [Member] | Retail, Constructed 1985 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 24.5
Initial Cost
Land	9.1
Building & Improvements	14
Costs Capitalized Subsequent to Acquisition
Improvements	9.4
Gross Balance at December 31, 2016
Land	9.1
Building & Improvements	23.4
Total	32.5
Accumulated Depreciation	$ (1.6)
Depreciable Life in Years	39 years
Southern California [Member] | Commercial [Member] | Commercial Building, Constructed 1982 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 49.5
Initial Cost
Land	37.8
Building & Improvements	60.6
Costs Capitalized Subsequent to Acquisition
Improvements	5.6
Gross Balance at December 31, 2016
Land	37.8
Building & Improvements	66.1
Total	103.9
Accumulated Depreciation	$ (5)
Depreciable Life in Years	39 years
Southern California [Member] | Commercial [Member] | Commercial Building, Constructed 1968 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 30
Initial Cost
Land	11.6
Building & Improvements	36.5
Costs Capitalized Subsequent to Acquisition
Improvements	3.2
Gross Balance at December 31, 2016
Land	11.6
Building & Improvements	39.7
Total	51.3
Accumulated Depreciation	$ (2.9)
Depreciable Life in Years	39 years
Southern California [Member] | Commercial [Member] | Commercial Building 2, Constructed 1982 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 34.9
Initial Cost
Land	20.7
Building & Improvements	47.9
Costs Capitalized Subsequent to Acquisition
Improvements	25
Gross Balance at December 31, 2016
Land	20.7
Building & Improvements	52.7
Total	73.4
Accumulated Depreciation	$ (3.1)
Depreciable Life in Years	39 years
Southern California [Member] | Multifamily [Member] | 208-Unit Multifamily Building, Constructed 2004 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 37.7
Initial Cost
Land	9.3
Building & Improvements	37.3
Costs Capitalized Subsequent to Acquisition
Improvements	3.5
Gross Balance at December 31, 2016
Land	9.3
Building & Improvements	40.8
Total	50.1
Accumulated Depreciation	$ (3.2)
Depreciable Life in Years	39 years
Number of units | Unit	208
Southern California [Member] | Multifamily [Member] | 460-Unit Multifamily Building, Constructed 1988 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 45.4
Initial Cost
Land	13.2
Building & Improvements	53
Costs Capitalized Subsequent to Acquisition
Improvements	2.6
Gross Balance at December 31, 2016
Land	13.2
Building & Improvements	55.6
Total	68.8
Accumulated Depreciation	$ (3.6)
Depreciable Life in Years	39 years
Number of units | Unit	460
Southern California [Member] | Multifamily [Member] | 386-Unit Multifamily Building, Constructed 2002 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 64.8
Initial Cost
Land	0
Building & Improvements	81.4
Costs Capitalized Subsequent to Acquisition
Improvements	3.4
Gross Balance at December 31, 2016
Land	0.6
Building & Improvements	84.9
Total	85.5
Accumulated Depreciation	$ (3)
Depreciable Life in Years	39 years
Number of units | Unit	386
Southern California [Member] | Multifamily [Member] | 157-Unit Multifamily Building, Constructed 2013 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 42.9
Initial Cost
Land	14.5
Building & Improvements	46
Costs Capitalized Subsequent to Acquisition
Improvements	0.3
Gross Balance at December 31, 2016
Land	14.5
Building & Improvements	46.3
Total	60.8
Accumulated Depreciation	$ (1.6)
Depreciable Life in Years	39 years
Number of units | Unit	157
Mountain States [Member] | Commercial [Member] | Retail, Constructed 1981 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 3.6
Initial Cost
Land	1.3
Building & Improvements	4.2
Costs Capitalized Subsequent to Acquisition
Improvements	0.4
Gross Balance at December 31, 2016
Land	1.3
Building & Improvements	4.6
Total	5.9
Accumulated Depreciation	$ (0.5)
Depreciable Life in Years	39 years
Mountain States [Member] | Commercial [Member] | Retail, Constructed 1958, 1974-1976, 1985, 1989, 2006 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 5.3
Initial Cost
Land	2.1
Building & Improvements	2.9
Costs Capitalized Subsequent to Acquisition
Improvements	0.9
Gross Balance at December 31, 2016
Land	1.8
Building & Improvements	3.8
Total	5.6
Accumulated Depreciation	$ (0.4)
Depreciable Life in Years	39 years
Mountain States [Member] | Commercial [Member] | Retail, Constructed 1989 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 11.2
Initial Cost
Land	5.1
Building & Improvements	7.8
Costs Capitalized Subsequent to Acquisition
Improvements	1.1
Gross Balance at December 31, 2016
Land	5.1
Building & Improvements	8.9
Total	14
Accumulated Depreciation	$ (0.9)
Depreciable Life in Years	39 years
Mountain States [Member] | Commercial [Member] | Retail, Constructed 1980, 1983 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 7.4
Initial Cost
Land	3.5
Building & Improvements	7.4
Costs Capitalized Subsequent to Acquisition
Improvements	1.3
Gross Balance at December 31, 2016
Land	3.5
Building & Improvements	8.7
Total	12.2
Accumulated Depreciation	$ (0.9)
Depreciable Life in Years	39 years
Mountain States [Member] | Commercial [Member] | Retail, Constructed 1979, 1980 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 7.2
Initial Cost
Land	2.3
Building & Improvements	5.4
Costs Capitalized Subsequent to Acquisition
Improvements	1.5
Gross Balance at December 31, 2016
Land	2.3
Building & Improvements	6.8
Total	9.1
Accumulated Depreciation	$ (0.7)
Depreciable Life in Years	39 years
Mountain States [Member] | Commercial [Member] | Retail 2, Constructed 1979,1980 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 12.8
Initial Cost
Land	5.7
Building & Improvements	12.7
Costs Capitalized Subsequent to Acquisition
Improvements	0.7
Gross Balance at December 31, 2016
Land	5.7
Building & Improvements	13.4
Total	19.1
Accumulated Depreciation	$ (1)
Depreciable Life in Years	39 years
Mountain States [Member] | Commercial [Member] | Retail, Constructed 1978, 2002 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 5
Initial Cost
Land	1.6
Building & Improvements	6
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	1.6
Building & Improvements	6
Total	7.6
Accumulated Depreciation	$ (0.4)
Depreciable Life in Years	39 years
Mountain States [Member] | Commercial [Member] | Retail, Constructed 1961 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 7.6
Initial Cost
Land	2.6
Building & Improvements	9.5
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	2.6
Building & Improvements	9.5
Total	12.1
Accumulated Depreciation	$ (0.4)
Depreciable Life in Years	39 years
Mountain States [Member] | Commercial [Member] | Retail, Constructed 1984, 2008 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 29
Initial Cost
Land	9.3
Building & Improvements	30
Costs Capitalized Subsequent to Acquisition
Improvements	0.6
Gross Balance at December 31, 2016
Land	9.3
Building & Improvements	30.5
Total	39.8
Accumulated Depreciation	$ (1.1)
Depreciable Life in Years	39 years
Mountain States [Member] | Commercial [Member] | Retail, Constructed 1995, 1996 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 4.3
Initial Cost
Land	1.3
Building & Improvements	5.6
Costs Capitalized Subsequent to Acquisition
Improvements	0.4
Gross Balance at December 31, 2016
Land	1.3
Building & Improvements	6
Total	7.3
Accumulated Depreciation	$ (0.2)
Depreciable Life in Years	39 years
Mountain States [Member] | Commercial [Member] | Commercial Building Constructed 1967 and 1983 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 12.9
Initial Cost
Land	4.1
Building & Improvements	12.2
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	4.1
Building & Improvements	12.2
Total	16.3
Accumulated Depreciation	$ (0.1)
Depreciable Life in Years	39 years
Mountain States [Member] | Multifamily [Member] | 450-unit Multifamily Building, Constructed 1974 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 47.3
Initial Cost
Land	18.4
Building & Improvements	43
Costs Capitalized Subsequent to Acquisition
Improvements	5
Gross Balance at December 31, 2016
Land	18.4
Building & Improvements	48
Total	66.4
Accumulated Depreciation	$ (7.1)
Depreciable Life in Years	39 years
Number of units | Unit	450
Mountain States [Member] | Multifamily [Member] | 366-unit Apartment building, Constructed 2000 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 53.3
Initial Cost
Land	9.1
Building & Improvements	36.3
Costs Capitalized Subsequent to Acquisition
Improvements	7.8
Gross Balance at December 31, 2016
Land	9.1
Building & Improvements	44.1
Total	53.2
Accumulated Depreciation	$ (8.1)
Depreciable Life in Years	39 years
Number of units | Unit	366
Mountain States [Member] | Multifamily [Member] | 324-Unit Multifamily Building, Constructed 1996 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 25.8
Initial Cost
Land	3.2
Building & Improvements	28.6
Costs Capitalized Subsequent to Acquisition
Improvements	5.2
Gross Balance at December 31, 2016
Land	3.2
Building & Improvements	33.8
Total	37
Accumulated Depreciation	$ (3.5)
Depreciable Life in Years	39 years
Number of units | Unit	324
Mountain States [Member] | Multifamily [Member] | 204-Unit Multifamily Building, Constructed 1999 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 13.9
Initial Cost
Land	2
Building & Improvements	17.6
Costs Capitalized Subsequent to Acquisition
Improvements	1.3
Gross Balance at December 31, 2016
Land	2
Building & Improvements	18.9
Total	20.9
Accumulated Depreciation	$ (0.8)
Depreciable Life in Years	39 years
Number of units | Unit	204
Mountain States [Member] | Multifamily [Member] | 168-Unit Multifamily Building, Constructed 1992 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 10.1
Initial Cost
Land	1.8
Building & Improvements	13.1
Costs Capitalized Subsequent to Acquisition
Improvements	1.4
Gross Balance at December 31, 2016
Land	1.8
Building & Improvements	14.4
Total	16.2
Accumulated Depreciation	$ (0.7)
Depreciable Life in Years	39 years
Number of units | Unit	168
Mountain States [Member] | Multifamily [Member] | 300-Unit Multifamily Building, Constructed 1995 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 22.9
Initial Cost
Land	4.8
Building & Improvements	29.2
Costs Capitalized Subsequent to Acquisition
Improvements	0.6
Gross Balance at December 31, 2016
Land	4.8
Building & Improvements	29.9
Total	34.7
Accumulated Depreciation	$ (0.2)
Depreciable Life in Years	39 years
Number of units | Unit	30
Mountain States [Member] | Multifamily [Member] | 200-Unit Multifamily Building, Constructed 2012 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 20.7
Initial Cost
Land	1.4
Building & Improvements	25.9
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	1.4
Building & Improvements	26
Total	27.4
Accumulated Depreciation	$ (0.2)
Depreciable Life in Years	39 years
Number of units | Unit	200
Mountain States [Member] | Hotel [Member] | Hotel, Constructed 1982 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 10.2
Initial Cost
Land	1.3
Building & Improvements	15.6
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	1.3
Building & Improvements	15.8
Total	17.1
Accumulated Depreciation	$ (1.4)
Depreciable Life in Years	39 years
Northern California [Member] | Commercial [Member] | Retail, Constructed 1975 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 6.9
Initial Cost
Land	2.7
Building & Improvements	6.7
Costs Capitalized Subsequent to Acquisition
Improvements	1.1
Gross Balance at December 31, 2016
Land	2.7
Building & Improvements	7.8
Total	10.5
Accumulated Depreciation	$ (0.7)
Depreciable Life in Years	39 years
Northern California [Member] | Multifamily [Member] | 178-unit Apartment building, Constructed 1975 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 31.4
Initial Cost
Land	12.3
Building & Improvements	18.5
Costs Capitalized Subsequent to Acquisition
Improvements	7.3
Gross Balance at December 31, 2016
Land	12.3
Building & Improvements	25.7
Total	38
Accumulated Depreciation	$ (5.2)
Depreciable Life in Years	39 years
Number of units | Unit	178
Northern California [Member] | Multifamily [Member] | 542-Unit Multifamily Building, Constructed, 1987 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 91.5
Initial Cost
Land	38.3
Building & Improvements	57.5
Costs Capitalized Subsequent to Acquisition
Improvements	7.7
Gross Balance at December 31, 2016
Land	38.3
Building & Improvements	65.2
Total	103.5
Accumulated Depreciation	$ (7.5)
Depreciable Life in Years	39 years
Number of units | Unit	542
Northern California [Member] | Multifamily [Member] | 1,008-Unit Multifamily Building, Constructed 1988 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 175
Initial Cost
Land	62.7
Building & Improvements	152.5
Costs Capitalized Subsequent to Acquisition
Improvements	12
Gross Balance at December 31, 2016
Land	62.3
Building & Improvements	164.4
Total	226.7
Accumulated Depreciation	$ (11.8)
Depreciable Life in Years	39 years
Number of units | Unit	1,008
Northern California [Member] | Hotel [Member] | Hotel, Constructed 2006 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 38.8
Initial Cost
Land	9.8
Building & Improvements	76.7
Costs Capitalized Subsequent to Acquisition
Improvements	2.7
Gross Balance at December 31, 2016
Land	16.7
Building & Improvements	84.2
Total	100.9
Accumulated Depreciation	$ (7.5)
Depreciable Life in Years	39 years
United Kingdom [Member] | Commercial [Member] | Commercial Portfolio 1, Acquired 2014 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	47.5
Building & Improvements	121.2
Costs Capitalized Subsequent to Acquisition
Improvements	20.1
Gross Balance at December 31, 2016
Land	38.8
Building & Improvements	118.5
Total	157.3
Accumulated Depreciation	$ (10.4)
Depreciable Life in Years	39 years
United Kingdom [Member] | Commercial [Member] | Commercial Portfolio 2, Acquired 2014 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 171.8
Initial Cost
Land	88.9
Building & Improvements	328.9
Costs Capitalized Subsequent to Acquisition
Improvements	11.5
Gross Balance at December 31, 2016
Land	72.3
Building & Improvements	274.7
Total	347
Accumulated Depreciation	$ (25.4)
Depreciable Life in Years	39 years
United Kingdom [Member] | Commercial [Member] | Commercial Building, Constructed 2003 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	85.3
Building & Improvements	232
Costs Capitalized Subsequent to Acquisition
Improvements	16.2
Gross Balance at December 31, 2016
Land	72.6
Building & Improvements	213.8
Total	286.4
Accumulated Depreciation	$ (17.8)
Depreciable Life in Years	39 years
United Kingdom [Member] | Commercial [Member] | Commercial Building, Constructed 2010 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 71.8
Initial Cost
Land	6.2
Building & Improvements	109.5
Costs Capitalized Subsequent to Acquisition
Improvements	5.6
Gross Balance at December 31, 2016
Land	5.1
Building & Improvements	94.8
Total	99.9
Accumulated Depreciation	$ (8.5)
Depreciable Life in Years	39 years
United Kingdom [Member] | Commercial [Member] | Commercial Portfolio 1, Acquired 2015 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 339.7
Initial Cost
Land	207.3
Building & Improvements	316.6
Costs Capitalized Subsequent to Acquisition
Improvements	4.6
Gross Balance at December 31, 2016
Land	184.7
Building & Improvements	277
Total	461.7
Accumulated Depreciation	$ (19.8)
Depreciable Life in Years	39 years
United Kingdom [Member] | Commercial [Member] | Commercial Portfolio 2, Acquired 2015 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	95.8
Building & Improvements	167.4
Costs Capitalized Subsequent to Acquisition
Improvements	8.1
Gross Balance at December 31, 2016
Land	83.2
Building & Improvements	142.6
Total	225.8
Accumulated Depreciation	$ (8.3)
Depreciable Life in Years	39 years
United Kingdom [Member] | Commercial [Member] | Industrial, Constructed 1984, 2003 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	6.9
Building & Improvements	8.8
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	8.6
Building & Improvements	7.3
Total	15.9
Accumulated Depreciation	$ (0.3)
Depreciable Life in Years	39 years
United Kingdom [Member] | Commercial [Member] | Commercial Portfolio, Acquired 2016 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	32.1
Building & Improvements	70.4
Costs Capitalized Subsequent to Acquisition
Improvements	0.8
Gross Balance at December 31, 2016
Land	29.9
Building & Improvements	66.4
Total	96.3
Accumulated Depreciation	$ (2.6)
Depreciable Life in Years	39 years
United Kingdom [Member] | Commercial [Member] | Industrial, Constructed 2002 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	5
Building & Improvements	9.2
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	5.3
Building & Improvements	9.8
Total	15.1
Accumulated Depreciation	$ (0.3)
Depreciable Life in Years	39 years
United Kingdom [Member] | Multifamily [Member] | 294-Unit Multifamily Building, Constructed 2012 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	22.1
Building & Improvements	84
Costs Capitalized Subsequent to Acquisition
Improvements	16
Gross Balance at December 31, 2016
Land	20.3
Building & Improvements	93.1
Total	113.4
Accumulated Depreciation	$ (4.1)
Depreciable Life in Years	39 years
Number of units | Unit	294
United Kingdom [Member] | Hotel [Member] | Hotel and Golf Course, Constructed 2001, 2008 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	12
Building & Improvements	37.3
Costs Capitalized Subsequent to Acquisition
Improvements	4.6
Gross Balance at December 31, 2016
Land	9.9
Building & Improvements	42.5
Total	52.4
Accumulated Depreciation	$ (3.2)
Depreciable Life in Years	39 years
Ireland [Member] | Commercial [Member] | Office, Acquired 2014 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	2.1
Building & Improvements	8.8
Costs Capitalized Subsequent to Acquisition
Improvements	4.1
Gross Balance at December 31, 2016
Land	1.5
Building & Improvements	13.9
Total	15.4
Accumulated Depreciation	$ (2.1)
Depreciable Life in Years	39 years
Ireland [Member] | Commercial [Member] | Office Constructed 1973 And 2016 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	13.9
Building & Improvements	21.9
Costs Capitalized Subsequent to Acquisition
Improvements	0.3
Gross Balance at December 31, 2016
Land	12.2
Building & Improvements	71.5
Total	83.7
Accumulated Depreciation	$ (3.2)
Depreciable Life in Years	39 years
Ireland [Member] | Commercial [Member] | Commercial Building, Constructed 2003 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 84.5
Initial Cost
Land	8.2
Building & Improvements	102.6
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	7.2
Building & Improvements	90.4
Total	97.6
Accumulated Depreciation	$ (7.9)
Depreciable Life in Years	39 years
Ireland [Member] | Commercial [Member] | Office Constructed 1999 And 2006 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 57.6
Initial Cost
Land	5
Building & Improvements	63
Costs Capitalized Subsequent to Acquisition
Improvements	0.5
Gross Balance at December 31, 2016
Land	4.4
Building & Improvements	56.1
Total	60.5
Accumulated Depreciation	$ (5)
Depreciable Life in Years	39 years
Ireland [Member] | Commercial [Member] | Retail Constructed 1966 And 2005 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 104.4
Initial Cost
Land	59.8
Building & Improvements	83.1
Costs Capitalized Subsequent to Acquisition
Improvements	12.4
Gross Balance at December 31, 2016
Land	52.7
Building & Improvements	86
Total	138.7
Accumulated Depreciation	$ (6.7)
Depreciable Life in Years	39 years
Ireland [Member] | Commercial [Member] | Office Constructed 1980 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 82.3
Initial Cost
Land	20.4
Building & Improvements	73.8
Costs Capitalized Subsequent to Acquisition
Improvements	0.2
Gross Balance at December 31, 2016
Land	18
Building & Improvements	65.2
Total	83.2
Accumulated Depreciation	$ (5.7)
Depreciable Life in Years	39 years
Ireland [Member] | Commercial [Member] | Commercial Building, Constructed 2009 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 87.6
Initial Cost
Land	48.6
Building & Improvements	131.1
Costs Capitalized Subsequent to Acquisition
Improvements	0.4
Gross Balance at December 31, 2016
Land	7.7
Building & Improvements	114.6
Total	122.3
Accumulated Depreciation	$ (10.8)
Depreciable Life in Years	39 years
Ireland [Member] | Commercial [Member] | Commercial Building, Constructed 1998 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	0.7
Building & Improvements	6.8
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	0.7
Building & Improvements	7.2
Total	7.9
Accumulated Depreciation	$ (0.3)
Depreciable Life in Years	39 years
Ireland [Member] | Commercial [Member] | Commercial Portfolio 3, Acquired 2015 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	1.8
Building & Improvements	9.6
Costs Capitalized Subsequent to Acquisition
Improvements	4.3
Gross Balance at December 31, 2016
Land	4.1
Building & Improvements	24.7
Total	28.8
Accumulated Depreciation	$ (0.5)
Depreciable Life in Years	39 years
Ireland [Member] | Commercial [Member] | Commercial Building, Constructed 2007 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	2
Building & Improvements	11.9
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	2.1
Building & Improvements	13
Total	15.1
Accumulated Depreciation	$ (0.6)
Depreciable Life in Years	39 years
Ireland [Member] | Commercial [Member] | Commercial Building, Constructed 2009, Acquired 2016 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	4.2
Building & Improvements	64
Costs Capitalized Subsequent to Acquisition
Improvements	1.6
Gross Balance at December 31, 2016
Land	4.4
Building & Improvements	68.2
Total	72.6
Accumulated Depreciation	$ (2.7)
Depreciable Life in Years	39 years
Ireland [Member] | Commercial [Member] | Office Constructed 1841 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	4.9
Building & Improvements	18.5
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	4.9
Building & Improvements	18.8
Total	23.7
Accumulated Depreciation	$ (0.1)
Depreciable Life in Years	39 years
Ireland [Member] | Commercial [Member] | Office Constructed 1840 and 2000 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	11
Building & Improvements	0
Costs Capitalized Subsequent to Acquisition
Improvements	1.4
Gross Balance at December 31, 2016
Land	11.3
Building & Improvements	1.4
Total	12.7
Accumulated Depreciation	$ 0
Depreciable Life in Years	39 years
Ireland [Member] | Multifamily [Member] | 205-Unit Multifamily Building, Constructed 2009 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 55.2
Initial Cost
Land	17.7
Building & Improvements	55.3
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	17.3
Building & Improvements	54.3
Total	71.6
Accumulated Depreciation	$ (1.2)
Depreciable Life in Years	39 years
Number of units | Unit	205
Ireland [Member] | Multifamily [Member] | 272-Unit Multifamily Building, Constructed 2008 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	32.7
Building & Improvements	81.5
Costs Capitalized Subsequent to Acquisition
Improvements	8.7
Gross Balance at December 31, 2016
Land	28.5
Building & Improvements	130
Total	158.5
Accumulated Depreciation	$ (13.4)
Depreciable Life in Years	39 years
Number of units | Unit	272
Ireland [Member] | Multifamily [Member] | 26-Unit Multifamily Building, Constructed 2009 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 12.4
Initial Cost
Land	0.6
Building & Improvements	14.8
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	0.5
Building & Improvements	13.2
Total	13.7
Accumulated Depreciation	$ (1.3)
Depreciable Life in Years	39 years
Number of units | Unit	26
Ireland [Member] | Multifamily [Member] | 210-Unit Multifamily Building, Constructed 2005 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 46.1
Initial Cost
Land	12.2
Building & Improvements	61.6
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	10.7
Building & Improvements	52.7
Total	63.4
Accumulated Depreciation	$ (4.9)
Depreciable Life in Years	39 years
Number of units | Unit	210
Ireland [Member] | Multifamily [Member] | 118-Unit Multifamily Unit, Constructed 2007 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 27.5
Initial Cost
Land	11
Building & Improvements	36.1
Costs Capitalized Subsequent to Acquisition
Improvements	2.1
Gross Balance at December 31, 2016
Land	9.6
Building & Improvements	33.6
Total	43.2
Accumulated Depreciation	$ (3.7)
Depreciable Life in Years	39 years
Number of units | Unit	118
Ireland [Member] | Multifamily [Member] | 423-Unit Multifamily Building, Constructed 2008 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 122.1
Initial Cost
Land	17.9
Building & Improvements	105
Costs Capitalized Subsequent to Acquisition
Improvements	13.6
Gross Balance at December 31, 2016
Land	18.2
Building & Improvements	163.6
Total	181.8
Accumulated Depreciation	$ (11.3)
Depreciable Life in Years	39 years
Number of units | Unit	423
Ireland [Member] | Hotel [Member] | Hotel and Golf Course, Constructed 1894, 1995 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	6.8
Building & Improvements	30.6
Costs Capitalized Subsequent to Acquisition
Improvements	3.4
Gross Balance at December 31, 2016
Land	6
Building & Improvements	35.6
Total	41.6
Accumulated Depreciation	$ (6)
Depreciable Life in Years	39 years
Ireland [Member] | Hotel [Member] | Hotel, Constructed 1824, 2005 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 86.4
Initial Cost
Land	54
Building & Improvements	114.3
Costs Capitalized Subsequent to Acquisition
Improvements	21.5
Gross Balance at December 31, 2016
Land	49.9
Building & Improvements	129.7
Total	179.6
Accumulated Depreciation	$ (11.1)
Depreciable Life in Years	39 years
Ireland [Member] | Development [Member] | Retail, Acquired 2015 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	17.2
Building & Improvements	0
Costs Capitalized Subsequent to Acquisition
Improvements	0.5
Gross Balance at December 31, 2016
Land	18.3
Building & Improvements	0.5
Total	18.8
Accumulated Depreciation	0
Ireland [Member] | Development [Member] | Office, Acquired 2015 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost
Land	0.5
Building & Improvements	3.4
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	0.6
Building & Improvements	10
Total	10.6
Accumulated Depreciation	0
Ireland [Member] | Development [Member] | Mixed Use, Acquired 2014 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	88.6
Initial Cost
Land	46.2
Building & Improvements	0.6
Costs Capitalized Subsequent to Acquisition
Improvements	150.4
Gross Balance at December 31, 2016
Land	34.5
Building & Improvements	150.4
Total	184.9
Accumulated Depreciation	0
Spain [Member] | Commercial [Member] | Retail Portfolio, Acquired 2015 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	51.6
Initial Cost
Land	21.5
Building & Improvements	60.1
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	23.4
Building & Improvements	65.5
Total	88.9
Accumulated Depreciation	$ (3.8)
Depreciable Life in Years	39 years
Spain [Member] | Commercial [Member] | Retail, Constructed 1995 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 43.9
Initial Cost
Land	27.1
Building & Improvements	46.2
Costs Capitalized Subsequent to Acquisition
Improvements	11
Gross Balance at December 31, 2016
Land	31.8
Building & Improvements	65.3
Total	97.1
Accumulated Depreciation	$ (2.7)
Depreciable Life in Years	39 years
Spain [Member] | Development [Member] | Retail, Acquired 2015 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	0
Building & Improvements	34.7
Costs Capitalized Subsequent to Acquisition
Improvements	10.9
Gross Balance at December 31, 2016
Land	0
Building & Improvements	46.9
Total	46.9
Accumulated Depreciation	0
Spain [Member] | Development [Member] | Retail, Acquired 2014 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost
Land	0
Building & Improvements	13.8
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	0
Building & Improvements	14.8
Total	14.8
Accumulated Depreciation	0
Italy [Member] | Commercial [Member] | Commercial Portfolio 3, Acquired 2015 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost
Land	47.5
Building & Improvements	135.1
Costs Capitalized Subsequent to Acquisition
Improvements	0.9
Gross Balance at December 31, 2016
Land	52
Building & Improvements	148.7
Total	200.7
Accumulated Depreciation	$ (7.2)
Depreciable Life in Years	39 years
Pacific Northwest [Member] | Commercial [Member] | Retail Constructed 1956 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 7.5
Initial Cost
Land	2.3
Building & Improvements	8.1
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	2.3
Building & Improvements	8.1
Total	10.4
Accumulated Depreciation	$ (0.1)
Depreciable Life in Years	39 years
Pacific Northwest [Member] | Commercial [Member] | Commercial Building Constructed 1999 and 2001 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 77
Initial Cost
Land	30.6
Building & Improvements	106
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	30.6
Building & Improvements	106
Total	136.6
Accumulated Depreciation	$ (1.6)
Depreciable Life in Years	39 years
Pacific Northwest [Member] | Multifamily [Member] | 297-unit Multifamily Building, Constructed 1999 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 22.1
Initial Cost
Land	3.9
Building & Improvements	25.8
Costs Capitalized Subsequent to Acquisition
Improvements	2
Gross Balance at December 31, 2016
Land	3.9
Building & Improvements	27.8
Total	31.7
Accumulated Depreciation	$ (3.3)
Depreciable Life in Years	39 years
Number of units | Unit	297
Pacific Northwest [Member] | Multifamily [Member] | 217-unit Multifamily property, Constructed 2011 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 23.9
Initial Cost
Land	2.6
Building & Improvements	41.4
Costs Capitalized Subsequent to Acquisition
Improvements	2.7
Gross Balance at December 31, 2016
Land	2.5
Building & Improvements	41.9
Total	44.4
Accumulated Depreciation	$ (5.9)
Depreciable Life in Years	39 years
Number of units | Unit	217
Pacific Northwest [Member] | Multifamily [Member] | 203-Unit Multifamily Building, Constructed 2005 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 19.5
Initial Cost
Land	2.6
Building & Improvements	23.8
Costs Capitalized Subsequent to Acquisition
Improvements	2.2
Gross Balance at December 31, 2016
Land	2.6
Building & Improvements	26.1
Total	28.7
Accumulated Depreciation	$ (3)
Depreciable Life in Years	39 years
Number of units | Unit	203
Pacific Northwest [Member] | Multifamily [Member] | 240-Unit Multifamily Building, Constructed 1990 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 18.7
Initial Cost
Land	3.9
Building & Improvements	22.3
Costs Capitalized Subsequent to Acquisition
Improvements	3.4
Gross Balance at December 31, 2016
Land	3.9
Building & Improvements	25.7
Total	29.6
Accumulated Depreciation	$ (2.8)
Depreciable Life in Years	39 years
Number of units | Unit	240
Pacific Northwest [Member] | Multifamily [Member] | 396-Unit Multifamily Building, Constructed, 1989, 1995 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 30.6
Initial Cost
Land	8.7
Building & Improvements	34.7
Costs Capitalized Subsequent to Acquisition
Improvements	5.7
Gross Balance at December 31, 2016
Land	8.7
Building & Improvements	40.4
Total	49.1
Accumulated Depreciation	$ (4.4)
Depreciable Life in Years	39 years
Number of units | Unit	396
Pacific Northwest [Member] | Multifamily [Member] | 118-Unit Multifamily Building, Constructed, 1990 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 13.5
Initial Cost
Land	2.1
Building & Improvements	18.6
Costs Capitalized Subsequent to Acquisition
Improvements	1.1
Gross Balance at December 31, 2016
Land	2.1
Building & Improvements	19.7
Total	21.8
Accumulated Depreciation	$ (1.9)
Depreciable Life in Years	39 years
Number of units | Unit	118
Pacific Northwest [Member] | Multifamily [Member] | 280-Unit Multifamily Building, Constructed 2004, 2006 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 37.3
Initial Cost
Land	6
Building & Improvements	40.3
Costs Capitalized Subsequent to Acquisition
Improvements	1.7
Gross Balance at December 31, 2016
Land	6
Building & Improvements	41.9
Total	47.9
Accumulated Depreciation	$ (3.5)
Depreciable Life in Years	39 years
Number of units | Unit	280
Pacific Northwest [Member] | Multifamily [Member] | 750-Unit Multifamily Building, Constructed 1987 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 84.8
Initial Cost
Land	22.1
Building & Improvements	78.2
Costs Capitalized Subsequent to Acquisition
Improvements	6.8
Gross Balance at December 31, 2016
Land	22.1
Building & Improvements	85
Total	107.1
Accumulated Depreciation	$ (7.8)
Depreciable Life in Years	39 years
Number of units | Unit	750
Pacific Northwest [Member] | Multifamily [Member] | Condo, Constructed 2005 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	0
Building & Improvements	0.2
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	0
Building & Improvements	1
Total	1
Accumulated Depreciation	$ 0
Depreciable Life in Years	39 years
Pacific Northwest [Member] | Multifamily [Member] | 430-Unit Multifamily Building, Constructed 2006 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 62.6
Initial Cost
Land	12.8
Building & Improvements	67.4
Costs Capitalized Subsequent to Acquisition
Improvements	1
Gross Balance at December 31, 2016
Land	12.8
Building & Improvements	68.3
Total	81.1
Accumulated Depreciation	$ (2.6)
Depreciable Life in Years	39 years
Number of units | Unit	430
Pacific Northwest [Member] | Multifamily [Member] | 408-Unit Multifamily Building, Constructed 1998 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 60.4
Initial Cost
Land	9.2
Building & Improvements	83.3
Costs Capitalized Subsequent to Acquisition
Improvements	1.5
Gross Balance at December 31, 2016
Land	9.3
Building & Improvements	84.7
Total	94
Accumulated Depreciation	$ (2.4)
Depreciable Life in Years	39 years
Number of units | Unit	408
Pacific Northwest [Member] | Multifamily [Member] | 210-Multifamily Building, Constructed 2007 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 29
Initial Cost
Land	11
Building & Improvements	46.7
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	11
Building & Improvements	46.7
Total	57.7
Accumulated Depreciation	$ (0.3)
Depreciable Life in Years	39 years
Number of units | Unit	210
Pacific Northwest [Member] | Multifamily [Member] | 264-Unit Multifamily Building, Constructed 1997 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 25.5
Initial Cost
Land	6.4
Building & Improvements	44.9
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	6.4
Building & Improvements	45
Total	51.4
Accumulated Depreciation	$ (0.2)
Depreciable Life in Years	39 years
Number of units | Unit	264
Pacific Northwest [Member] | Multifamily [Member] | 300-Unit Multifamily Building, Constructed 2016 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 84
Initial Cost
Land	26.8
Building & Improvements	107.4
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	26.8
Building & Improvements	107.4
Total	134.2
Accumulated Depreciation	$ (0.3)
Depreciable Life in Years	39 years
Number of units | Unit	343
Pacific Northwest [Member] | Multifamily [Member] | 179-Unit Multifamily Building, Constructed 2013 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 32.9
Initial Cost
Land	11.9
Building & Improvements	47.4
Costs Capitalized Subsequent to Acquisition
Improvements	0
Gross Balance at December 31, 2016
Land	11.9
Building & Improvements	47.4
Total	59.3
Accumulated Depreciation	$ 0
Depreciable Life in Years	39 years
Number of units | Unit	179
Hawaii [Member] | Development [Member] | Single Family Home, Acquired 2008 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	4.1
Building & Improvements	4.2
Costs Capitalized Subsequent to Acquisition
Improvements	0.1
Gross Balance at December 31, 2016
Land	3.4
Building & Improvements	3.3
Total	6.7
Accumulated Depreciation	$ (1)
Depreciable Life in Years	39 years
Hawaii [Member] | Land [Member] | 2700 acres [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost
Land	31.7
Building & Improvements	3.7
Costs Capitalized Subsequent to Acquisition
Improvements	0.7
Gross Balance at December 31, 2016
Land	38.7
Building & Improvements	4.3
Total	43
Accumulated Depreciation	$ (1.4)
Area of real estate property | a	2,700

Schedule III - Real Estate a113

Schedule III - Real Estate and Accumulated Depreciation - Changes in Real Estate Rollforward (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the beginning of period	$ 5,805.4	$ 5,624.2	$ 4,067.1
Additions during the period:
Acquisitions through foreclosure	0	0	99.3
Other acquisitions	179.5	542.7	1,473.1
Improvements	615.7	366.9	168.1
Consolidations	0	39.3	602.1
Foreign currency	426.9	(423.6)	(270.3)
Deductions during the period:
Cost of real estate sold	(448.9)	(344.1)	(515.2)
Balance at close of period	$ 6,578.6	$ 5,805.4	$ 5,624.2

Schedule III - Real Estate a114

Schedule III - Real Estate and Accumulated Depreciation - Changes in Accumulated Depreciation Rollforward (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the beginning of period	$ 230.3	$ 139.1	$ 61.9
Additions during the period:
Depreciation expense	128.2	113	88.1
Deductions during the period:
Dispositions	(34.8)	(11.3)	(7.8)
Foreign currency	20.3	(10.5)	(3.1)
Balance at close of period	$ 344	$ 230.3	$ 139.1

Schedule IV - Mortgage Loans115

Schedule IV - Mortgage Loans on Real Estate (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)Unit	Dec. 31, 2016USD ($)
Mortgage Loans on Real Estate [Line Items]
Carrying Amount December 31, 2017	$ 3,180.5	$ 2,788.8
Mortgages [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	2,975.2
Debt face value	3,178
Carrying Amount December 31, 2017	3,180.5
Principal Amount of Loans Subject to Delinquent Principal or Interest	0
Mortgages [Member] | Commercial [Member] | Office, 1-Month LIBOR Plus 2.25% Mortgage Payable, Due 2021 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	49.4
Debt face value	49.4
Carrying Amount December 31, 2017	49.4
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Commercial [Member] | Retail 4.79% Mortgage Payable Due 2018 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	4.79%
Balloon Amount	$ 3.5
Debt face value	3.6
Carrying Amount December 31, 2017	3.6
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Commercial [Member] | Retail, 4.01% Mortgage Payable, Due 2018 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	4.01%
Balloon Amount	$ 12.7
Debt face value	12.8
Carrying Amount December 31, 2017	12.8
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Commercial [Member] | Retail 4.41% Mortgage Payable Due 2018 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	4.41%
Balloon Amount	$ 4.9
Debt face value	5
Carrying Amount December 31, 2017	5
Principal Amount of Loans Subject to Delinquent Principal or Interest	0
Mortgages [Member] | Commercial [Member] | Retail 1-Month LIBOR Plus 2.75% Mortgage Payable Due 2020 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	24.1
Debt face value	24.5
Carrying Amount December 31, 2017	24.5
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Commercial [Member] | Retail 4.10% Mortgage Payable Due 2020 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	4.10%
Balloon Amount	$ 10.6
Debt face value	11.2
Carrying Amount December 31, 2017	11.2
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Commercial [Member] | Retail 5.75% Mortgage Payable Due 2023 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	5.75%
Balloon Amount	$ 6.2
Debt face value	7.4
Carrying Amount December 31, 2017	7.4
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Commercial [Member] | Retail 5.00% Mortgage Payable Due 2023 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	5.00%
Balloon Amount	$ 6
Debt face value	6.9
Carrying Amount December 31, 2017	6.9
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Commercial [Member] | Retail 4.73% Mortgage Payable Due 2024 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	4.73%
Balloon Amount	$ 4.5
Debt face value	5.5
Carrying Amount December 31, 2017	5.5
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Commercial [Member] | Retail 4.56% Mortgage Payable Due 2024 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	4.56%
Balloon Amount	$ 1.4
Debt face value	1.7
Carrying Amount December 31, 2017	1.7
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Commercial [Member] | Retail 4.36% Mortgage Payable Due 2025 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	4.36%
Balloon Amount	$ 4.3
Debt face value	5.3
Carrying Amount December 31, 2017	5.3
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Commercial [Member] | Retail 4.10% Mortgage Payable Due 2021 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	4.10%
Balloon Amount	$ 6.7
Debt face value	7.6
Carrying Amount December 31, 2017	7.6
Principal Amount of Loans Subject to Delinquent Principal or Interest	0
Mortgages [Member] | Commercial [Member] | Retail 1-Month LIBOR Plus 2.35% Mortgage Payable Due 2021 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	28.3
Debt face value	29
Carrying Amount December 31, 2017	29
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Commercial [Member] | Retail 3.99% Mortgage Payable Due 2019 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	3.99%
Balloon Amount	$ 4.2
Debt face value	4.3
Carrying Amount December 31, 2017	4.3
Principal Amount of Loans Subject to Delinquent Principal or Interest	0
Mortgages [Member] | Commercial [Member] | Office, 1-Month LIBOR Plus 2.00% Mortgage Payable, Due 2025 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	27.3
Debt face value	34.2
Carrying Amount December 31, 2017	34.1
Principal Amount of Loans Subject to Delinquent Principal or Interest	0
Mortgages [Member] | Commercial [Member] | Office, 1-Month LIBOR Plus 2.25% Mortgage Payable, Due 2025 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	24.9
Debt face value	30
Carrying Amount December 31, 2017	30
Principal Amount of Loans Subject to Delinquent Principal or Interest	0
Mortgages [Member] | Commercial [Member] | Office 2, 1-Month LIBOR Plus 2.25% Mortgage Payable, Due 2025 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	30
Debt face value	34.9
Carrying Amount December 31, 2017	34.9
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Commercial [Member] | Office, 4.75% Mortgage Payable, Due 2020 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	4.75%
Balloon Amount	$ 7.1
Debt face value	7.5
Carrying Amount December 31, 2017	7.5
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Commercial [Member] | Office, 3.85% Mortgage Payable, Due 2027 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	3.85%
Balloon Amount	$ 77
Debt face value	77
Carrying Amount December 31, 2017	77
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Commercial [Member] | Office, 4.69% Mortgage Payable, Due 2022 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	4.69%
Balloon Amount	$ 11.5
Debt face value	12.9
Carrying Amount December 31, 2017	12.9
Principal Amount of Loans Subject to Delinquent Principal or Interest	0
Mortgages [Member] | Commercial [Member] | Commercial Portflolio, 3-Month GBP LIBOR Plus1.80% Mortgage Payable, Due 2019 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	171.8
Debt face value	171.8
Carrying Amount December 31, 2017	171.8
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Commercial [Member] | Retail 2.82% Mortgage Payable Due 2025 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	2.82%
Balloon Amount	$ 71.7
Debt face value	71.7
Carrying Amount December 31, 2017	71.7
Principal Amount of Loans Subject to Delinquent Principal or Interest	0
Mortgages [Member] | Commercial [Member] | Office, 3-Month EURIBOR Plus 1.80% Mortgage Payable, Due 2022 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	84.5
Debt face value	84.5
Carrying Amount December 31, 2017	84.5
Principal Amount of Loans Subject to Delinquent Principal or Interest	0
Mortgages [Member] | Commercial [Member] | Office, 3-Month EURIBOR Plus 1.80% Payable, Due 2022 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	57.6
Debt face value	57.6
Carrying Amount December 31, 2017	57.6
Principal Amount of Loans Subject to Delinquent Principal or Interest	0
Mortgages [Member] | Commercial [Member] | Retail, 3-Month EURIBOR Plus 2.0% Payable, Due 2022 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	94.8
Debt face value	104.4
Carrying Amount December 31, 2017	104.4
Principal Amount of Loans Subject to Delinquent Principal or Interest	0
Mortgages [Member] | Commercial [Member] | Office, 3-Month EURIBOR Plus 1.80% Payable, Due 2022 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	82.3
Debt face value	82.3
Carrying Amount December 31, 2017	82.3
Principal Amount of Loans Subject to Delinquent Principal or Interest	0
Mortgages [Member] | Commercial [Member] | Commercial Portfolio, 3-Month GBP LIBOR Plus 2.50% Mortgage Payable, Due 2018 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	25.7
Debt face value	25.7
Carrying Amount December 31, 2017	25.7
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Commercial [Member] | Commercial Portfolio 2.90% Mortgage Payable Due 2020 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	2.90%
Balloon Amount	$ 95.5
Debt face value	95.5
Carrying Amount December 31, 2017	95.5
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Commercial [Member] | Commercial Portfolio 2.91% Mortgage Payable Due 2023 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	2.91%
Balloon Amount	$ 218.5
Debt face value	218.5
Carrying Amount December 31, 2017	218.5
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Commercial [Member] | Office, 2.59% Mortgage Payable Due 2024 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	2.59%
Balloon Amount	$ 87.6
Debt face value	87.6
Carrying Amount December 31, 2017	87.6
Principal Amount of Loans Subject to Delinquent Principal or Interest	0
Mortgages [Member] | Commercial [Member] | Retail Portfolio 3-Month EURIBOR Plus 1.60% Mortgage Payable Due 2030 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	2.5
Debt face value	43.9
Carrying Amount December 31, 2017	43.9
Principal Amount of Loans Subject to Delinquent Principal or Interest	0
Mortgages [Member] | Commercial [Member] | Retail Portfolio 3-Month EURIBOR Plus 1.60% Mortgage Payable Due 2031 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	6.7
Debt face value	51.6
Carrying Amount December 31, 2017	51.6
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Commercial [Member] | LIBOR [Member] | Office, 1-Month LIBOR Plus 2.25% Mortgage Payable, Due 2021 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	2.25%
Mortgages [Member] | Commercial [Member] | LIBOR [Member] | Retail 1-Month LIBOR Plus 2.75% Mortgage Payable Due 2020 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	2.75%
Mortgages [Member] | Commercial [Member] | LIBOR [Member] | Retail 1-Month LIBOR Plus 2.35% Mortgage Payable Due 2021 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	2.35%
Mortgages [Member] | Commercial [Member] | LIBOR [Member] | Office, 1-Month LIBOR Plus 2.00% Mortgage Payable, Due 2025 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	2.00%
Mortgages [Member] | Commercial [Member] | LIBOR [Member] | Office, 1-Month LIBOR Plus 2.25% Mortgage Payable, Due 2025 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	2.25%
Mortgages [Member] | Commercial [Member] | LIBOR [Member] | Office 2, 1-Month LIBOR Plus 2.25% Mortgage Payable, Due 2025 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	2.25%
Mortgages [Member] | Commercial [Member] | LIBOR [Member] | GBP [Member] | Commercial Portflolio, 3-Month GBP LIBOR Plus1.80% Mortgage Payable, Due 2019 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	1.80%
Mortgages [Member] | Commercial [Member] | LIBOR [Member] | GBP [Member] | Commercial Portfolio, 3-Month GBP LIBOR Plus 2.50% Mortgage Payable, Due 2018 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	2.50%
Mortgages [Member] | Commercial [Member] | EURIBOR [Member] | Office, 3-Month EURIBOR Plus 1.80% Mortgage Payable, Due 2022 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	1.80%
Mortgages [Member] | Commercial [Member] | EURIBOR [Member] | Office, 3-Month EURIBOR Plus 1.80% Payable, Due 2022 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	1.80%
Mortgages [Member] | Commercial [Member] | EURIBOR [Member] | Retail, 3-Month EURIBOR Plus 2.0% Payable, Due 2022 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	2.00%
Mortgages [Member] | Commercial [Member] | EURIBOR [Member] | Office, 3-Month EURIBOR Plus 1.80% Payable, Due 2022 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	1.80%
Mortgages [Member] | Commercial [Member] | EURIBOR [Member] | Retail Portfolio 3-Month EURIBOR Plus 1.60% Mortgage Payable Due 2030 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	1.60%
Mortgages [Member] | Commercial [Member] | EURIBOR [Member] | Retail Portfolio 3-Month EURIBOR Plus 1.60% Mortgage Payable Due 2031 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	1.60%
Mortgages [Member] | Multifamily [Member] | Multifamily 1,008 Unit 3.50% Mortgage Payable Due 2026 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	3.50%
Balloon Amount	$ 175
Debt face value	175
Carrying Amount December 31, 2017	175
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	1,008
Mortgages [Member] | Multifamily [Member] | Multifamily 460 Unit 4.07% Mortgage Payable Due 2018 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	4.07%
Balloon Amount	$ 31.8
Debt face value	32.5
Carrying Amount December 31, 2017	32.5
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	460
Mortgages [Member] | Multifamily [Member] | Multifaily 240 Unit 4.25% Mortgage Payable Due 2019 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	4.25%
Balloon Amount	$ 18.3
Debt face value	18.6
Carrying Amount December 31, 2017	18.7
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	240
Mortgages [Member] | Multifamily [Member] | Multifamily 396 Unit 4.25% Mortgage Payable Due 2019 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	4.25%
Balloon Amount	$ 29.8
Debt face value	30.4
Carrying Amount December 31, 2017	30.6
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	396
Mortgages [Member] | Multifamily [Member] | Multifamily 460 Unit 1-Month LIBOR Plus 3.24% Mortgage Payable Due 2020 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	$ 12.1
Debt face value	12.9
Carrying Amount December 31, 2017	12.9
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	460
Mortgages [Member] | Multifamily [Member] | Multifamily 203 Unit 1-Month LIBOR Plus 1.73% Due 2026 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	3.86%
Balloon Amount	$ 17.7
Debt face value	19.5
Carrying Amount December 31, 2017	19.5
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	203
Mortgages [Member] | Multifamily [Member] | Multifamily 118 Unit 1-Month LIBOR Plus 1.74% Mortgage Payable Due 2021 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	$ 13.5
Debt face value	13.5
Carrying Amount December 31, 2017	13.5
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	118
Mortgages [Member] | Multifamily [Member] | Multifamily 217 Unit 3.35% Mortgage Payable Due 2023 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	3.35%
Balloon Amount	$ 21
Debt face value	23.9
Carrying Amount December 31, 2017	23.9
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	217
Mortgages [Member] | Multifamily [Member] | Multifamily 450 Unit 3.58% Mortgage Payable Due 2023 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	3.58%
Balloon Amount	$ 41.2
Debt face value	47.3
Carrying Amount December 31, 2017	47.3
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	450
Mortgages [Member] | Multifamily [Member] | Multifamily 750 Unit 3.73% Mortgage Payable Due 2023 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	3.73%
Balloon Amount	$ 51.7
Debt face value	59.1
Carrying Amount December 31, 2017	59.4
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	750
Mortgages [Member] | Multifamily [Member] | Multifamily 750 Unit 1-Month LIBOR Plus 3.05% Mortgage Payable Due 2023 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	$ 25.4
Debt face value	25.4
Carrying Amount December 31, 2017	25.4
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	750
Mortgages [Member] | Multifamily [Member] | Multifamily 542 Unit 3.78% Mortgage Payable Due 2024 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	3.78%
Balloon Amount	$ 69.9
Debt face value	77.2
Carrying Amount December 31, 2017	77.2
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	542
Mortgages [Member] | Multifamily [Member] | Multifamily 542 Unit 1-Month LIBOR Plus 2.80% Mortgage Payable Due 2024 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	$ 13
Debt face value	14.3
Carrying Amount December 31, 2017	14.3
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	542
Mortgages [Member] | Multifamily [Member] | Multifamily 366 Unit 3.24% Mortgage Payable Due 2025 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	3.24%
Balloon Amount	$ 47.8
Debt face value	53.3
Carrying Amount December 31, 2017	53.3
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	366
Mortgages [Member] | Multifamily [Member] | Multifamily 324 Unit 5.30% Mortgage Payable Due 2025 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	5.30%
Balloon Amount	$ 13.8
Debt face value	15.1
Carrying Amount December 31, 2017	16.8
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	324
Mortgages [Member] | Multifamily [Member] | Multifamily 324 Unit 1-Month LIBOR Plus 2.64% Mortgage Payable Due 2025 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	$ 8
Debt face value	9
Carrying Amount December 31, 2017	9
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	324
Mortgages [Member] | Multifamily [Member] | Multifamily 280 Unit 3.59% Mortgage Payable Due 2025 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	3.59%
Balloon Amount	$ 32.9
Debt face value	37.3
Carrying Amount December 31, 2017	37.3
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	280
Mortgages [Member] | Multifamily [Member] | Multifamily 208 Unit 3.77% Mortgage Payable Due 2025 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	3.77%
Balloon Amount	$ 34.1
Debt face value	37.7
Carrying Amount December 31, 2017	37.7
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	208
Mortgages [Member] | Multifamily [Member] | Multifamily 297 Unit 4.93% Mortgage Payable Due 2026 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	4.93%
Balloon Amount	$ 19
Debt face value	22.1
Carrying Amount December 31, 2017	22.1
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	297
Mortgages [Member] | Multifamily [Member] | Multifamily 178 Unit 3.74% Mortgage Payable Due 2027 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	3.74%
Balloon Amount	$ 31.4
Debt face value	31.4
Carrying Amount December 31, 2017	31.4
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	178
Mortgages [Member] | Multifamily [Member] | Multifamily 204 Unit 1-Month LIBOR Plus 2.36% Mortgage Payable Due 2026 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	$ 12.4
Debt face value	13.9
Carrying Amount December 31, 2017	13.9
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	204
Mortgages [Member] | Multifamily [Member] | Multifamily 168 Unit 1-Month LIBOR Plus 2.36% Percent Mortgage Payable Due 2026 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	$ 8.9
Debt face value	10.1
Carrying Amount December 31, 2017	10.1
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	168
Mortgages [Member] | Multifamily [Member] | Multifamily 430 Unit 3.63% Mortgage Payable Due 2026 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	3.63%
Balloon Amount	$ 56.6
Debt face value	62.6
Carrying Amount December 31, 2017	62.6
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	430
Mortgages [Member] | Multifamily [Member] | Multifamily 386 Unit Multifamily Building and 14 Retail Units 1-Month LIBOR Plus 2.48% Mortgage Payable Due 2023 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	$ 59.5
Debt face value	64.8
Carrying Amount December 31, 2017	64.8
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	386
Mortgages [Member] | Multifamily [Member] | Multifamily 157 Unit 3.63% Mortgage Payable Due 2026 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	3.63%
Balloon Amount	$ 40.7
Debt face value	42.9
Carrying Amount December 31, 2017	42.9
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	157
Mortgages [Member] | Multifamily [Member] | Multifamily 204 Unit 3.59% Mortgage Payable Due 2026 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	3.59%
Balloon Amount	$ 54.8
Debt face value	60.4
Carrying Amount December 31, 2017	60.4
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	204
Mortgages [Member] | Multifamily [Member] | Multifamily, 300-Unit Building, 3.64% Mortgage Payable, Due 2022 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	3.64%
Balloon Amount	$ 14.6
Debt face value	16.3
Carrying Amount December 31, 2017	16.3
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	300
Mortgages [Member] | Multifamily [Member] | Multifamily, 300-Unit Building, 1-Month LIBOR Plus 3.37% Mortgage Payable, Due 2022 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	$ 6.1
Debt face value	6.6
Carrying Amount December 31, 2017	6.6
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	300
Mortgages [Member] | Multifamily [Member] | Multifamily, 210-Unit Building, 1-Month LIBOR Plus 1.52% Mortgage Payable, Due 2027 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	$ 29
Debt face value	29
Carrying Amount December 31, 2017	29
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	210
Mortgages [Member] | Multifamily [Member] | Multifamily, 200-Unit Building, 4.13% Mortgage Payable, Due 2027 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	4.13%
Balloon Amount	$ 18.8
Debt face value	20.7
Carrying Amount December 31, 2017	20.7
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	200
Mortgages [Member] | Multifamily [Member] | Multifamily, 264-Unit Building, 4.30% Mortgage Payable, Due 2025 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	4.30%
Balloon Amount	$ 22.7
Debt face value	24.8
Carrying Amount December 31, 2017	25.5
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	264
Mortgages [Member] | Multifamily [Member] | Multifamily, 343-Unit Building, 3.86% Mortgage Payable, Due 2027 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	3.86%
Balloon Amount	$ 84
Debt face value	84
Carrying Amount December 31, 2017	84
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	343
Mortgages [Member] | Multifamily [Member] | Multifamily, 179-Unit Building, 3.50% Mortgage Payable, Due 2025 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	3.50%
Balloon Amount	$ 33.3
Debt face value	33.3
Carrying Amount December 31, 2017	32.9
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	179
Mortgages [Member] | Multifamily [Member] | Multifamily, 26-Unit Building, 3-Month EURIBOR Plus 1.75% Mortgage Payable, Due 2024 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	$ 11.4
Debt face value	12.4
Carrying Amount December 31, 2017	12.4
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	26
Mortgages [Member] | Multifamily [Member] | Multifamily 210-Unit Building, 2.57% Mortgage Payable, Due 2024 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	2.57%
Balloon Amount	$ 46.1
Debt face value	46.1
Carrying Amount December 31, 2017	46.1
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	210
Mortgages [Member] | Multifamily [Member] | Multifamily 118 2.57% Mortgage Payable Due 2025 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	2.57%
Balloon Amount	$ 27.5
Debt face value	27.5
Carrying Amount December 31, 2017	27.5
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	118
Mortgages [Member] | Multifamily [Member] | Multifamily 423 Unit 2.57% Mortgage Payable Due 2025 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	2.57%
Balloon Amount	$ 67.8
Debt face value	67.8
Carrying Amount December 31, 2017	67.8
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	423
Mortgages [Member] | Multifamily [Member] | Multifamily, 176-Unit Building, 2.03% Mortgage Payable, Due 2025 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	2.03%
Balloon Amount	$ 54.2
Debt face value	54.2
Carrying Amount December 31, 2017	54.2
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	176
Mortgages [Member] | Multifamily [Member] | Multifamily, 124-Unit Building, 3-Month EURIBOR Plus 2.5% Mortgage Payable, Due 2022 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	$ 54
Debt face value	55.2
Carrying Amount December 31, 2017	55.2
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Number of units | Unit	124
Mortgages [Member] | Multifamily [Member] | LIBOR [Member] | Multifamily 460 Unit 1-Month LIBOR Plus 3.24% Mortgage Payable Due 2020 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	3.24%
Mortgages [Member] | Multifamily [Member] | LIBOR [Member] | Multifamily 118 Unit 1-Month LIBOR Plus 1.74% Mortgage Payable Due 2021 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	1.74%
Mortgages [Member] | Multifamily [Member] | LIBOR [Member] | Multifamily 750 Unit 1-Month LIBOR Plus 3.05% Mortgage Payable Due 2023 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	3.05%
Mortgages [Member] | Multifamily [Member] | LIBOR [Member] | Multifamily 542 Unit 1-Month LIBOR Plus 2.80% Mortgage Payable Due 2024 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	2.80%
Mortgages [Member] | Multifamily [Member] | LIBOR [Member] | Multifamily 324 Unit 1-Month LIBOR Plus 2.64% Mortgage Payable Due 2025 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	2.64%
Mortgages [Member] | Multifamily [Member] | LIBOR [Member] | Multifamily 204 Unit 1-Month LIBOR Plus 2.36% Mortgage Payable Due 2026 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	3.36%
Mortgages [Member] | Multifamily [Member] | LIBOR [Member] | Multifamily 168 Unit 1-Month LIBOR Plus 2.36% Percent Mortgage Payable Due 2026 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	2.36%
Mortgages [Member] | Multifamily [Member] | LIBOR [Member] | Multifamily 386 Unit Multifamily Building and 14 Retail Units 1-Month LIBOR Plus 2.48% Mortgage Payable Due 2023 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	2.48%
Mortgages [Member] | Multifamily [Member] | LIBOR [Member] | Multifamily, 300-Unit Building, 1-Month LIBOR Plus 3.37% Mortgage Payable, Due 2022 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	3.37%
Mortgages [Member] | Multifamily [Member] | LIBOR [Member] | Multifamily, 210-Unit Building, 1-Month LIBOR Plus 1.52% Mortgage Payable, Due 2027 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	1.52%
Mortgages [Member] | Multifamily [Member] | EURIBOR [Member] | Multifamily, 26-Unit Building, 3-Month EURIBOR Plus 1.75% Mortgage Payable, Due 2024 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	1.75%
Mortgages [Member] | Multifamily [Member] | EURIBOR [Member] | Multifamily, 124-Unit Building, 3-Month EURIBOR Plus 2.5% Mortgage Payable, Due 2022 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	2.50%
Mortgages [Member] | Retail [Member] | Multifamily 386 Unit Multifamily Building and 14 Retail Units 1-Month LIBOR Plus 2.48% Mortgage Payable Due 2023 [Member]
Mortgage Loans on Real Estate [Line Items]
Number of units | Unit	14
Mortgages [Member] | Mixed-Use And Hotel [Member] | Development, Mixed Use, 1-Month EURIBOR Plus 4.25% Mortgage Payable, Due 2019 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	$ 88.6
Debt face value	88.6
Carrying Amount December 31, 2017	88.6
Principal Amount of Loans Subject to Delinquent Principal or Interest	0
Mortgages [Member] | Mixed-Use And Hotel [Member] | Hotel 1-Month LIBOR Plus 3.00% Mortgage Payable Due 2017 [Member]
Mortgage Loans on Real Estate [Line Items]
Balloon Amount	10.3
Debt face value	10.3
Carrying Amount December 31, 2017	10.3
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Mixed-Use And Hotel [Member] | Hotel Condominium Units 5.00% Mortgage Payable Due 2021 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	5.00%
Balloon Amount	$ 36.3
Debt face value	38.8
Carrying Amount December 31, 2017	38.8
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Mixed-Use And Hotel [Member] | Hotel 3.88% Mortgage Payable Due 2025 [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (as a percent)	3.88%
Balloon Amount	$ 86.4
Debt face value	86.4
Carrying Amount December 31, 2017	86.4
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgages [Member] | Mixed-Use And Hotel [Member] | LIBOR [Member] | Hotel 1-Month LIBOR Plus 3.00% Mortgage Payable Due 2017 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	3.00%
Mortgages [Member] | Mixed-Use And Hotel [Member] | EURIBOR [Member] | Development, Mixed Use, 1-Month EURIBOR Plus 4.25% Mortgage Payable, Due 2019 [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (as percent)	4.25%

Schedule IV - Mortgage Loans116

Schedule IV - Mortgage Loans on Real Estate - Activity for the Year (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)
Movement in Mortgage Loans on Real Estate [Roll Forward]
Balance - December 31, 2016	$ 2,788.8
New mortgage loans	916.5
Other additions	17
Amortization of mortgage premium	(4)
Payments of principal	(690)
Foreign currency gain (loss)	152.2
Balance - December 31, 2017	$ 3,180.5