Kennedy-Wilson (KW) 10-Q 3 Nov 17 2017 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Nov. 02, 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-Q
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		151,444,945

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions		Sep. 30, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents		$ 512.9	$ 260.2
Cash held by consolidated investments		719.8	625.5
Accounts receivable (including $44.6 and $30.4 of related party)		86.6	71.3
Real estate and acquired in place lease values, net of accumulated depreciation and amortization		6,320.8	5,814.2
Loan purchases and originations		85.4	87.7
Unconsolidated investments (including $342.9 and $329.4 at fair value)		507.8	555.6
Other assets		303.3	244.6
Total assets	[1]	8,536.6	7,659.1
Liabilities
Accounts payable		20.4	11.2
Accrued expenses and other liabilities		493	412.1
Line of credit		350	0
Total liabilities	[1]	6,142.3	5,316
Equity
Common stock, 114,218,250 and 115,740,906 shares issued and outstanding as of September 30, 2017 and December 31, 2016		0	0
Additional paid-in capital		1,225.2	1,231.4
Accumulated deficit		(160.4)	(112.2)
Accumulated other comprehensive loss		(51.4)	(71.2)
Total Kennedy-Wilson Holdings, Inc. shareholders' equity		1,013.4	1,048
Noncontrolling interests		1,380.9	1,295.1
Total equity		2,394.3	2,343.1
Total liabilities and equity		8,536.6	7,659.1
Investment Debt [Member]
Liabilities
Long-term debt		4,340.8	3,956.1
Senior Notes [Member]
Liabilities
Long-term debt		$ 938.1	$ 936.6
[1]	The assets and liabilities as of September 30, 2017 include $4.9 billion (including cash held by consolidated investments of $0.7 billion and real estate and acquired in place lease values, net of accumulated depreciation and amortization of $3.9 billion) and $3.0 billion (including investment debt of $2.7 billion), 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 $0.6 billion 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		Sep. 30, 2017	Dec. 31, 2016
Assets
Related party accounts receivable		$ 44.6	$ 30.4
Fair value of unconsolidated investments		342.9	329.4
Assets	[1]	8,536.6	7,659.1
Cash held by consolidated investments		719.8	625.5
Real estate and acquired in place lease values, net of accumulated depreciation and amortization		6,320.8	5,814.2
Liabilities
Liabilities	[1]	$ 6,142.3	$ 5,316
Stockholders' Equity Attributable to Parent [Abstract]
Common stock, shares issued (in shares)		114,218,250	115,740,906
Common stock, shares outstanding (in shares)		114,218,250	115,740,906
Investment Debt [Member]
Liabilities
Long-term debt		$ 4,340.8	$ 3,956.1
Variable Interest Entity, Primary Beneficiary [Member]
Assets
Assets		4,900	4,500
Cash held by consolidated investments		700	600
Real estate and acquired in place lease values, net of accumulated depreciation and amortization		3,900	3,600
Liabilities
Liabilities		3,000	2,700
Variable Interest Entity, Primary Beneficiary [Member] | Investment Debt [Member]
Liabilities
Long-term debt		$ 2,700	$ 2,400
[1]	The assets and liabilities as of September 30, 2017 include $4.9 billion (including cash held by consolidated investments of $0.7 billion and real estate and acquired in place lease values, net of accumulated depreciation and amortization of $3.9 billion) and $3.0 billion (including investment debt of $2.7 billion), 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 $0.6 billion 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		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenue
Rental	$ 125.5	$ 122.9	$ 373.6	$ 363.1
Hotel	37.3	31.4	95.8	87.3
Sale of real estate	89.8	2.5	103.4	16.7
Investment management, property services and research fees (includes $7.5, $5.4, $17.5, and $22.9 of related party fees)	16.1	14.1	41.3	46.7
Loan purchases, loan originations and other	8.5	3.4	15	9.2
Total revenue	277.2	174.3	629.1	523
Operating expenses
Rental operating	38	34.6	110.5	98.4
Hotel operating	26.1	23.8	73.3	71.9
Cost of real estate sold	63.4	2.5	73.7	13.1
Commission and marketing	2.1	2.5	5.9	6
Compensation and related	35.4	42.2	113.5	128.4
General and administrative	10.8	10.5	30.7	32.5
Depreciation and amortization	55.4	50	157.2	147.3
Total operating expenses	231.2	166.1	564.8	497.6
Income from unconsolidated investments	12.9	31.7	48.8	59.3
Operating income	58.9	39.9	113.1	84.7
Non-operating income (expense)
Gain on sale of real estate	5.3	21.5	77	76
Acquisition-related gains	0	7.6	0	16.2
Acquisition-related expenses	(1)	(1)	(2.3)	(9.4)
Interest expense-investment	(37.9)	(36.8)	(107.8)	(102.9)
Interest expense-corporate	(18.9)	(14.5)	(51.1)	(38.8)
Other (loss) income	(0.3)	1.9	4.6	7.6
Income before benefit from (provision for) income taxes	6.1	18.6	33.5	33.4
Benefit from (provision for) income taxes	3.7	(5.5)	(0.9)	(2.1)
Net income	9.8	13.1	32.6	31.3
Net income attributable to the noncontrolling interests	(18.7)	(15.1)	(31.3)	(41.3)
Preferred dividends and accretion of preferred stock issuance costs	0	(0.5)	0	(1.6)
Net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	$ (8.9)	$ (2.5)	$ 1.3	$ (11.6)
Basic (loss) income per share
(Loss) income per basic (in dollars per share)	$ (0.08)	$ (0.03)	$ 0.01	$ (0.12)
Weighted average shares outstanding for basic (in shares)	111,966,716	108,634,228	111,955,924	108,966,540
Diluted (loss) income per share
(Loss) income per diluted (in dollars per share)	$ (0.08)	$ (0.03)	$ 0.01	$ (0.12)
Weighted average shares outstanding for diluted (in shares)	111,966,716	108,634,228	111,955,924	108,966,540
Dividends declared per common share (in dollars per share)	$ 0.17	$ 0.14	$ 0.51	$ 0.42

Consolidated Statements of Ope5

Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Investment management, property services, and research fees— related party	$ 7.5	$ 5.4	$ 17.5	$ 22.9

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 9.8	$ 13.1	$ 32.6	$ 31.3
Other comprehensive income (loss), net of tax:
Unrealized foreign currency translation gain (loss)	50.5	(1.1)	171.3	(61.7)
Unrealized gain on marketable securities	0.1	0.1	0.2	0.2
Amounts reclassified out of AOCI during the period	0.1	0.7	0.1	3.4
Unrealized currency derivative contracts loss	(11.5)	(35.6)	(44.3)	(125)
Total other comprehensive income (loss) for the period	39.2	(35.9)	127.3	(183.1)
Comprehensive income (loss)	49	(22.8)	159.9	(151.8)
Comprehensive (income) loss attributable to noncontrolling interests	(52.9)	15.7	(138.8)	127.8
Comprehensive (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	$ (3.9)	$ (7.1)	$ 21.1	$ (24)

Consolidated Statement of Equit

Consolidated Statement of Equity - USD ($) $ in Millions		Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Income Loss [Member]	Noncontrolling Interests [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of ASU 2016-09 adoption	[1]	$ 9.3			$ 9.3
Beginning balance outstanding (in shares) at Dec. 31, 2016			115,740,906
Balance beginning of period at Dec. 31, 2016		2,343.1	$ 0	$ 1,231.4	(112.2)	$ (71.2)	$ 1,295.1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares forfeited (in shares)			(57,000)
Restricted stock grants (RSG) (in shares)			71,750
Shares retired due to RSG vesting (in shares)			(1,460,251)
Shares retired due to RSG vesting		(34)		(34)
Shares retired due to common stock repurchase program (in shares)			(77,155)
Shares retired due to common stock repurchase program		(1.6)		(1.4)	(0.2)
Stock based compensation		29.2		29.2
Other comprehensive income (loss):
Unrealized foreign currency translation gain, net of tax		171.4				39.7	131.7
Unrealized foreign currency derivative contract loss, net of tax		(44.3)				(20.1)	(24.2)
Unrealized gain on marketable securities		0.2				0.2
Common stock dividends		(58.6)			(58.6)
Net income		32.6			1.3		31.3
Acquisition of Kennedy Wilson Europe (KWE) shares from noncontrolling interest holders		(3.3)					(3.3)
Contributions from noncontrolling interests		43.6					43.6
Distributions to noncontrolling interests		(93.3)					(93.3)
Ending balance outstanding (in shares) at Sep. 30, 2017			114,218,250
Balance end of period at Sep. 30, 2017		$ 2,394.3	$ 0	$ 1,225.2	$ (160.4)	$ (51.4)	$ 1,380.9
[1]	See Note 2 for further discussion.

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income		$ 32.6	$ 31.3
Adjustments to reconcile net income to net cash used in operating activities:
Net gain from sale of real estate		(106.7)	(79.6)
Acquisition-related gain		0	(16.2)
Depreciation and amortization		157.2	147.3
Provision for deferred income taxes		(5.8)	(2.3)
Amortization of deferred loan costs		6.3	9.8
Accretion of interest income on loans		(12.1)	(8.4)
Amortization of discount and accretion of premium on issuance of the senior notes and investment debt		(0.9)	(1)
Unrealized net loss (gain) on derivatives		15.8	(6.2)
Income from unconsolidated investments		(48.8)	(59.3)
Operating distributions from unconsolidated investments		67.6	53.9
Operating distributions from loan purchases and originations		5.1	13.1
Share-based compensation		29.2	47.8
Change in assets and liabilities:
Accounts receivable		(4.9)	(14.5)
Other assets		(21)	(19.9)
Accounts payable, accrued expenses and other liabilities		16	(17.4)
Net cash provided by operating activities		129.6	78.4
Cash flows from investing activities:
Additions to loans		0	(16.1)
Collections of loans		16.9	145.4
Net proceeds from sale of real estate		261.9	266
Purchases of and additions to real estate		(475)	(748.4)
Proceeds from settlement of foreign derivative contracts		3.1	43.3
Purchases of foreign derivative contracts		(0.6)	(5.8)
Investment in marketable securities		(0.6)	(0.9)
Proceeds from sale of marketable securities		0.6	0
Additions to development project asset		(13)	0
Proceeds from development project asset		36.9	0
Distributions from unconsolidated investments		89.4	63.4
Contributions to unconsolidated investments		(62.3)	(70.3)
Net cash used in investing activities		(142.7)	(323.4)
Cash flows from financing activities:
Borrowings under senior notes payable		0	250
Borrowings under line of credit		400	125
Repayment of lines of credit		(50)	(125)
Borrowings under investment debt		258.3	933.4
Repayment of investment debt		(142.6)	(407.1)
Debt issue costs		(1.4)	(9.4)
Repurchase and retirement of common stock		(35.6)	(43.4)
Dividends paid		(57.1)	(47.5)
Costs associated with KWE transaction		(10)	0
Acquisition of KWE shares from noncontrolling interest holders		(3.3)	(70.6)
Contributions from noncontrolling interests, excluding KWE		43.6	25.3
Distributions to noncontrolling interests		(93.3)	(94.8)
Net cash provided by financing activities		308.6	535.9
Effect of currency exchange rate changes on cash and cash equivalents		51.5	(47.3)
Net change in cash and cash equivalents	[1]	347	243.6
Cash and cash equivalents, beginning of period		885.7	731.6
Cash and cash equivalents, end of period		1,232.7	975.2
Supplemental cash flow information:
Interest	[2]	127.6	103.4
Income taxes	[3]	15.6	10.4
Supplemental disclosure of non-cash investing and financing activities:
Accrued capital expenditures		18.2	11.6
Dividends declared but not paid on common stock		$ 19.4	$ 15.9
[1]	See discussion of non-cash effects in notes to consolidated statements of cash flows.
[2]	$36.6 million and $35.9 million attributable to noncontrolling interests
[3]	$12.0 million and $8.2 million attributable to noncontrolling interests

Consolidated Statements of Cas9

Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Statement of Cash Flows [Abstract]
Interest paid attributable to noncontrolling interest	$ 36.6	$ 35.9
Income taxes paid attributable to noncontrolling interest	12	8.2
Acquisition-related gains	$ 0	$ 16.2

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
BASIS OF PRESENTATION	BASIS OF PRESENTATION KW Group's unaudited interim consolidated financial statements have been prepared pursuant to the rules and regulations of the U.S. Securities and Exchange Commission ("SEC"). Certain information and footnote disclosures normally included in the financial statements prepared in accordance with accounting principles generally accepted in the United States ("U.S. GAAP") may have been condensed or omitted pursuant to SEC rules and regulations, although the Company believes that the disclosures are adequate to make their presentation not misleading. In the Company's opinion, all adjustments, consisting of only normal and recurring items, necessary for a fair presentation of the results of operations for the three and nine months ended September 30, 2017 and 2016 have been included. The results of operations for these periods are not necessarily indicative of results that might be expected for the full year ending December 31, 2017 . For further information, your attention is directed to the footnote disclosures found in the Company's Annual Report on Form 10-K for the year ended December 31, 2016 . Throughout these unaudited interim consolidated financial statements “KW Group,” is referenced which is defined as the Company and its subsidiaries that are consolidated in its financial statements under U.S. GAAP (including KWE as defined below). All significant intercompany balances and transactions have been eliminated in consolidation. "KW," “KWH,” “Kennedy Wilson,” the “Company,” “we,” “our,” or “us” are also referred to which are defined as Kennedy-Wilson Holdings, Inc. and its wholly-owned subsidiaries. In addition, throughout these unaudited interim consolidated financial statements, “equity partners” is referred to which is defined as the non-wholly owned subsidiaries that are consolidated in the Company's financial statements under U.S. GAAP, including KWE, and third-party equity providers. Kennedy Wilson evaluates its relationships with other entities to identify whether they are variable interest entities ("VIEs") as defined in the ASC Subtopic 810-10, as amended by Accounting Standards Update ("ASU") 2015-02, and to assess whether it is the primary beneficiary of such entities. If the determination is made that Kennedy Wilson is the primary beneficiary, then that entity is included in the consolidated financial statements in accordance with the ASC Subtopic 810-10. The preparation of the accompanying consolidated financial statements in conformity with U.S. generally accepted accounting principles 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. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates. See comment in Note 4 about the preliminary nature of the estimates used in relation to acquisitions. KWE Kennedy Wilson Europe Real Estate Plc (“KWE,” LSE: KWE), a public limited company registered in Jersey formed to invest in real estate and real estate-related assets in Europe, closed its initial public offering ("IPO") on the London Stock Exchange during the quarter ended March 31, 2014. KWE is externally managed by a wholly-owned subsidiary of Kennedy Wilson incorporated in Jersey pursuant to an investment management agreement. Due to the terms provided in the investment management agreement and Kennedy Wilson's equity ownership interest in KWE, pursuant to the guidance set forth in Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Subtopic 810 - Consolidation (“Subtopic 810”), the Company is required to consolidate KWE’s results in its consolidated financial statements. As of September 30, 2017 , the Company invested $492.6 million and owned approximately 23.8% of KWE’s total issued share capital. Prior to KWE's formation and for investments that do not meet KWE's investment guidelines, the Company (along with its equity partners) has directly invested in 17 properties and a servicing platform in Europe which had total assets of $1,028.2 million included in the Company's consolidated balance sheet and $295.3 million of equity as of September 30, 2017 . As of September 30, 2017 , the Company's weighted average ownership in these investments was 64% . 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 $697.2 million in cash and issued 37,226,695 shares of KWH to shareholders of KWE stock. See Subsequent Events footnote for more information on the acquisition.

Summary of Significant Accounti

Summary of Significant Accounting Polices and Adoption of New Accounting Pronouncements	9 Months Ended
	Sep. 30, 2017
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND ADOPTION OF NEW ACCOUNTING PRONOUNCEMENTS	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND ADOPTION OF NEW ACCOUNTING PRONOUNCEMENTS REVENUE RECOGNITION—Performance fees or carried interests are allocated to the general partner, special limited partner or asset manager of the Company's real estate funds and loan pool participations based on the cumulative performance of the funds and loan pools and are subject to preferred return thresholds of the limited partners and participants. At the end of each reporting period, the Company calculates the performance fee that would be due to the general partner, special limited partner or asset manager's interests for a fund or loan pool, pursuant to the fund agreement or participation agreements, 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 the Company 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. A majority of the performance fees are recognized in investment management revenue in the Company's consolidated statements of operations. Total performance fees recognized from inception through September 30, 2017 that may be reversed in future periods if there is negative fund performance totaled $32.8 million . Net performance fees recognized during the nine months ended September 30, 2017 and 2016 were $5.4 million and $10.5 million , respectively, and the amounts that have not been received are included in accounts receivable - related parties in the accompanying consolidated balance sheet. 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 ASC Subtopic 805-10, Business Combinations . Acquisition-related costs are expensed as incurred. The ownership of the other interest holders in consolidated subsidiaries is reflected as noncontrolling interests. 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 is valued, in part, based on third party valuations and management estimates also using an income approach. NONCONTROLLING INTERESTS—Noncontrolling interest is the portion of equity (net assets) in a subsidiary not attributable, directly or indirectly to the Company. These amounts are reported within equity as a separate component in accordance with ASC Subtopic 810-10, Noncontrolling Interests in Consolidated Financial Statements . Revenues, expenses, gains, losses, net income (loss), and other comprehensive income (loss) are reported in the consolidated statements of operations at the consolidated amounts and net income (loss) and comprehensive income (loss) attributable to noncontrolling interests are separately stated. The largest component of noncontrolling interest relates to the Company's investment in KWE, which had a corresponding noncontrolling interest balance of $1.2 billion as of September 30, 2017 . FOREIGN CURRENCIES—The financial statements of KW Group's subsidiaries located outside the United States are measured using the local currency as this is their 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, the British pound sterling, and to a lesser extent Japanese yen. Cumulative translation adjustments, to the extent not included in cumulative net income, are included in the consolidated statement of equity as a component of accumulated other comprehensive income. Investment level debt is 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, the Company enters into hedging transactions, in the form of currency derivative contracts, that are designed to reduce its book equity exposure to foreign currencies. See note 6 for a complete discussion on currency derivative contracts. DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES—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. Changes in fair value for fair value hedges are recognized in earnings. Fluctuations in foreign exchanges rates may have a significant impact on the Company's results of operations. In order to manage the potential exposure from adverse changes in foreign exchange rates arising from the Company’s net investments in foreign operations, the Company may enter into currency derivative contracts to hedge all or portions of the net investments in the Company’s non-U.S. dollar denominated foreign operations. 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 ASC Subtopic 740-10, Accounting for Uncertainty in Income Taxes , the effect of income tax positions is recognized only if those positions are more likely than not to be 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. RECENT ACCOUNTING PRONOUNCEMENTS—In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, a 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 will identify the contract, identify any separate performance obligations in the contract, determine the transaction price, allocate the transaction price and recognize revenue when the performance obligation is satisfied. The new standard will apply to KW Group’s management and leasing fees (including performance fees), commissions, rental and hotel income. Management is evaluating the impact of the five step model and does not expect it to have a significant impact on the financial statements. ASU 2014-09 will also impact how sales of real estate are reported, which will become subject to ASC Subtopic 610-20 Other Income- Gains and Losses from the Derecognition of Nonfinancial Assets ("Subtopic 610-20") . The impact of this new standard will be based on terms of future real estate sales contracts. The new standard will replace most existing revenue recognition in GAAP when it becomes effective for the Company on January 1, 2018. The Company is planning on adopting a modified retrospective transition method when the guidance becomes effective. 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 KW Group'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 adoption of this standard did not have a material impact on KW Group'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, KW Group 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. 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. The Company does not expect the ASU to have a significant impact on KW Group's consolidated financial statements except that the Company may no longer record acquisition related gains when acquiring controlling interests in real estate investments. 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 KW Group'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 KW Group's consolidated financial statements. The FASB did not issue any other ASUs during the first nine months of 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 year's financial statements have been reclassified to conform to the current year's presentation.

Loan Purchases and Originations

Loan Purchases and Originations	9 Months Ended
	Sep. 30, 2017
Receivables [Abstract]
LOAN PURCHASES AND ORIGINATIONS	LOAN PURCHASES AND ORIGINATIONS KW Group's investment in loan purchases and originations was $85.4 million and $87.7 million at September 30, 2017 and December 31, 2016 , respectively. During the first quarter of 2017, Kennedy Wilson collected, in full, approximately $6.4 million on a loan secured by an office property in San Diego, CA. During the third quarter of 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 $2.5 million of distributions related to the remaining six loans within the portfolio secured by six hotels throughout the United Kingdom. KW Group recognized interest income on loans of $8.5 million and $15.0 million during the three and nine months ended September 30, 2017 , respectively, and $3.4 million and $9.2 million during the three and nine months ended September 30, 2016 , respectively.

Real Estate and In-Place Lease

Real Estate and In-Place Lease Value	9 Months Ended
	Sep. 30, 2017
Real Estate [Abstract]
REAL ESTATE AND IN-PLACE LEASE VALUE	REAL ESTATE AND IN-PLACE LEASE VALUE The following table summarizes KW Group's investment in consolidated real estate properties at September 30, 2017 and December 31, 2016 : September 30, December 31, (Dollars in millions) 2017 2016 Land $ 1,487.2 $ 1,383.2 Buildings 4,458.8 4,048.7 Building improvements 473.0 373.5 In-place lease values 426.1 383.1 6,845.1 6,188.5 Less accumulated depreciation and amortization (524.3 ) (374.3 ) Real estate and acquired in place lease values, net of accumulated depreciation and amortization $ 6,320.8 $ 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 a 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 September 30, 2017 . 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 nine months ended September 30, 2017 , KW Group 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, three multifamily and one commercial property $ 54.1 $ 228.2 $ 22.7 $ 170.2 $ 3.8 $ 131.0 Ireland One development project $ 11.0 $ — $ — $ — $ 4.9 $ 7.4 $ 65.1 $ 228.2 $ 22.7 $ 170.2 $ 8.7 $ 138.4 (1) Excludes acquisition expenses and net other assets. The purchase price allocations for properties acquired during the nine months ended September 30, 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. Gains on Real Estate During the nine months ended September 30, 2017 , KW Group recognized the following gains on sale of real estate: (Dollars in millions) Gain on sale of real estate Description Consolidated (1) NCI Net of NCI KW Two multifamily properties and one retail center in the Western U.S., one commercial development in Ireland and one residential property in the United Kingdom $ 85.7 $ 19.0 $ 66.7 KWE 16 commercial properties in the United Kingdom, two condo unit sales in Spain and a residential property in Spain 21.0 16.0 5.0 KW Group $ 106.7 $ 35.0 $ 71.7 (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 September 30, 2017 , the maximum potential amount of future payments (undiscounted) Kennedy Wilson could be required to make under the guarantees was approximately $51.7 million which is approximately 1% of investment level debt of Kennedy Wilson and its equity partners. The guarantees expire through 2026 , 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 September 30, 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 their acquisition. KW Group'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 this acquisition been consummated at the beginning of the periods presented. The pro forma data presented below assumes that the acquisitions during the three and nine months ended September 30, 2017 occurred as of January 1, 2016. Three Months Ended September 30, Nine Months Ended September 30, (Dollars in millions, except for per share data) 2017 2016 2017 2016 Pro forma revenues $ 279.3 $ 181.0 $ 639.4 $ 543.1 Pro forma net income 10.8 17.5 37.7 44.8 Pro forma net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders (8.1 ) 1.6 5.6 1.2 Pro forma net (loss) income per share: Basic $ (0.07 ) $ 0.02 $ 0.05 $ 0.01 Diluted $ (0.07 ) $ 0.02 $ 0.05 $ 0.01

Unconsolidated Investments

Unconsolidated Investments	9 Months Ended
	Sep. 30, 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 the Company's unconsolidated investments carrying value by investment type and geographic location as of September 30, 2017 : (Dollars in millions) Multifamily Commercial Residential and Other Total Western U.S. $ 219.5 $ 61.6 $ 196.1 $ 477.2 United Kingdom — 10.8 — 10.8 Spain — — 17.3 17.3 Japan 2.5 — — 2.5 Total $ 222.0 $ 72.4 $ 213.4 $ 507.8 The following table details the Company's unconsolidated investments by investment type and geographic location as of December 31, 2016 : (Dollars in millions) Multifamily Commercial Residential and Other Total Western U.S. $ 192.9 $ 65.3 $ 261.6 $ 519.8 United Kingdom — 13.8 — 13.8 Spain — — 15.9 15.9 Japan 6.1 — — 6.1 Total $ 199.0 $ 79.1 $ 277.5 $ 555.6 During the nine months ended September 30, 2017, multifamily investments increased due to investments in four new multifamily properties, which was offset by the sale of two properties. Commercial investments decreased due to the sale of two properties. Residential and Other investments decreased due to a land sale, collections on receivables, and condominium unit and lot sales. Vintage Housing Holdings ("VHH") The Company owns noncontrolling interests in VHH, a joint 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 Company accounts for its investment under the equity method as it does not control the investment. As of September 30, 2017 and December 31, 2016 , the carrying value in VHH was $106.0 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. The Company has elected the fair value option on its unconsolidated investment in VHH. Fair value gains recognized through equity income were $3.7 million and $16.1 million during the three and nine months ended September 30, 2017 , respectively, and $7.2 million and $20.5 million during the three and nine months ended September 30, 2016 , respectively. Fair value gains are primarily generated 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 cash flows 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. Operating distributions recognized through equity income were $1.9 million and $5.1 million for the three and nine months ended September 30, 2017 , respectively, and $1.6 million and $4.7 million for the three and nine months ended September 30, 2016 , respectively. Contributions to Joint Ventures During the nine months ended September 30, 2017 , Kennedy Wilson contributed $62.3 million to joint ventures, of which $11.5 million went to new joint ventures with the balance to fund the Company's share of development projects, capital expenditures and working capital needs. Distributions from Joint Ventures During the nine months ended September 30, 2017 , Kennedy Wilson received $157.0 million in operating and investing distributions from its joint ventures. Operating distributions resulted from operating cash flow generated by the joint venture investments. Investing distributions resulted from the refinancing of property level debt and asset sales. The following table details cash distributions by investment type and geographic location for the nine months ended September 30, 2017 : Multifamily Commercial Residential and Other Total (Dollars in millions) Operating Investing Operating Investing Operating Investing Operating Investing Western U.S. $ 22.2 $ 12.6 $ 24.9 $ 16.1 $ 17.7 $ 57.0 $ 64.8 $ 85.7 Japan 0.1 3.7 — — — — 0.1 3.7 United Kingdom — — 2.3 — — — 2.3 — Spain — — — — 0.4 — 0.4 — Total $ 22.3 $ 16.3 $ 27.2 $ 16.1 $ 18.1 $ 57.0 $ 67.6 $ 89.4 Investing distributions resulted primarily from recapitalizations and the sale of multifamily and commercial properties in the Western United States. Operating distributions resulted from sales distributions in excess of invested basis and operating cash flow generated by the joint venture investments. 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 KW Group's financial statements. Capital Commitments As of September 30, 2017 , Kennedy Wilson had unfulfilled capital commitments totaling $63.8 million to four of its joint ventures under the respective operating agreements, including $50.0 million related to Kennedy Wilson Real Estate Fund VI, LP. 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	9 Months Ended
	Sep. 30, 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 September 30, 2017 : (Dollars in millions) Level 1 Level 2 Level 3 Total Unconsolidated investments $ — $ — $ 342.9 $ 342.9 Marketable securities 7.8 — — 7.8 Currency derivative contracts — (111.0 ) — (111.0 ) Total $ 7.8 $ (111.0 ) $ 342.9 $ 239.7 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 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 seventeen unconsolidated investments to more accurately reflect the timing of the value created in the underlying investments and report those results in current operations. Kennedy Wilson's investment balance in the FV Option investments was $287.2 million and $282.4 million at September 30, 2017 and December 31, 2016 , respectively, which is included in unconsolidated investments in the accompanying balance sheets. Additionally, Kennedy Wilson records its investments in KW Property Fund III, L.P., Kennedy Wilson Real Estate Fund IV, and Kennedy Wilson Real Estate Fund V, LP (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. Kennedy Wilson’s investment balance in the Funds was $55.7 million and $47.0 million at September 30, 2017 and December 31, 2016 , respectively, which is included in unconsolidated investments in the accompanying consolidated balance sheets. As of September 30, 2017 , Kennedy Wilson had unfunded capital commitments to the Funds in the amount of $9.0 million . In estimating fair value of real estate held by the Funds and the seventeen 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) September 30, 2017 December 31, 2016 FV Option $ 287.2 $ 282.4 Funds 55.7 47.0 Total $ 342.9 $ 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 three and nine months ended September 30, 2017 and 2016 : Three Months Ended September 30, Nine Months Ended September 30, (Dollars in millions) 2017 2016 2017 2016 Beginning balance $ 330.8 $ 236.6 $ 329.4 $ 223.8 Unrealized and realized gains 11.2 10.1 38.9 36.2 Unrealized and realized losses — (0.6 ) (0.8 ) (0.1 ) Contributions 22.4 10.2 47.5 30.3 Distributions (21.4 ) (29.2 ) (95.9 ) (64.0 ) Other (0.1 ) (0.1 ) 23.8 0.8 Ending balance $ 342.9 $ 227.0 $ 342.9 $ 227.0 Unobservable inputs for real estate The table below describes the range of unobservable inputs for real estate assets: Estimated Rates Used for Capitalization Rates Discount Rates Office 4.50% - 8.60% 6.75% - 9.75% Retail 5.50% - 9.00% 7.25% - 11.00% Multifamily 4.75% - 7.75% 8.00% - 9.75% Land and condominium units N/A 8.00% - 15.00% In valuing indebtedness the Company 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 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 and cannot be substantiated by comparison to quoted prices in active markets. As such, estimated fair value 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 capitalization 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. The amount above excludes Kennedy Wilson's 30.0 million shares in KWE as of September 30, 2017 as the investment is eliminated due to the consolidation of KWE's results in KW Group's consolidated financial statements. Currency Derivative Contracts KW Group 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 September 30, 2017 , KW Group 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, the Company has determined that its derivative valuation in its entirety be classified in Level 2 of the fair value hierarchy. If the derivative qualifies for hedge accounting, 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 derivative contracts used to hedge foreign currency exposure of its certain net investments in foreign operations qualifies as a net investment hedge under FASB ASC Topic 815. Ineffective portions of currency derivative contracts and contracts that do not quality for net investment hedges are recognized in the statement of operations within other income. The fair value of the currency derivative contracts held as of September 30, 2017 and December 31, 2016 are reported in other assets for hedge assets and included in accrued expenses and other liabilities for hedge liabilities on the balance sheet. See note 11 for a complete discussion on other comprehensive income including currency derivative contracts and foreign currency translations. The table below details the currency derivative contracts KW Group held as of September 30, 2017 and the activity during the nine months ended September 30, 2017 : (Dollars in millions) September 30, 2017 Nine Months Ended September 30, 2017 Currency Hedged Underlying Currency Notional Hedge Asset Hedge Liability Change in Unrealized Gains (Losses) Realized Gains (Losses) Cash Received (Paid) Outstanding EUR USD € 145.0 $ 0.3 $ (6.1 ) $ (9.5 ) $ — $ — EUR (1) GBP € 360.0 — (87.0 ) (13.9 ) — — EUR (1)(2) GBP — — (17.9 ) — — GBP USD £ 381.0 3.3 (5.9 ) (16.5 ) — (0.4 ) GBP (3) USD £ 259.7 — (15.5 ) — (15.5 ) — Yen USD ¥ 115.1 — (0.1 ) (0.1 ) — (0.2 ) Total Outstanding 3.6 (114.6 ) (57.9 ) (15.5 ) (0.6 ) Settled Yen USD — — (0.1 ) — 0.1 GBP USD — — 0.2 0.2 3.0 Total Settled — — 0.1 0.2 3.1 Total 3.6 (114.6 ) (57.8 ) (15.3 ) 2.5 Noncontrolling interests — 66.3 24.2 — — Total - Kennedy Wilson share $ 3.6 $ (48.3 ) $ (33.6 ) $ (15.3 ) $ 2.5 (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 proposed acquisition of KWE. Derivative losses are offset by realized foreign currency exchange gains on translation of cash. 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 KW Group. 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 September 30, 2017 and December 31, 2016 for the senior notes payable and investment debt were estimated to be approximately $5.7 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 $5.6 billion and $4.9 billion at September 30, 2017 and December 31, 2016 , respectively. The inputs used to value the Company's senior notes payable and mortgage loans payable 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	9 Months Ended
	Sep. 30, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
OTHER ASSETS	OTHER ASSETS Other assets consist of the following: (Dollars in millions) September 30, 2017 December 31, 2016 Above-market leases, net of accumulated amortization of $42.0 and $28.1 at September 30, 2017 and December 31, 2016, respectively $ 67.3 $ 72.4 Development project asset 46.4 — Deferred tax asset, net 31.3 23.2 VAT receivable 30.5 28.4 Goodwill 23.9 23.9 Office furniture and equipment net of accumulated depreciation of $35.1 and $24.4 at September 30, 2017 and December 31, 2016, respectively 23.6 25.4 Straight line rent 21.6 11.7 Prepaid expenses 15.2 10.2 Other, net of accumulated amortization of $4.9 and $3.7 at September 30, 2017 and December 31, 2016, respectively 12.3 12.5 Acquisition costs 10.0 — Marketable securities (1) 7.8 7.5 Leasing commissions, net of accumulated amortization of $2.7 and $1.7 at September 30, 2017 and December 31, 2016, respectively 6.5 7.4 Hedge assets 3.6 20.2 Deposits 3.3 1.8 Other Assets $ 303.3 $ 244.6 (1) The amount above excludes Kennedy Wilson's 30.0 million shares in KWE as the investment is eliminated due to the consolidation of KWE's results. Development Project Asset On May 12, 2017, Kennedy Wilson and its equity partners (the “Capital Dock JV”) sold 200 Capital Dock, a 130,000 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. Using the approaches described above, there was $83.5 million of sale of real estate and $57.6 million of cost of real estate sold reported in the consolidated statement of operations related to the sale of 200 Capital Dock during the nine months ended September 30, 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.

Investment Debt

Investment Debt	9 Months Ended
	Sep. 30, 2017
Debt Disclosure [Abstract]
INVESTMENT DEBT	INVESTMENT DEBT Investment debt at September 30, 2017 and December 31, 2016 consists of the following: (Dollars in millions) Carrying Amount of Investment Debt as of (1) Investment Debt by Product Type Region September 30, December 31, Mortgage debt Multifamily (1) Western U.S. $ 1,202.1 $ 1,180.8 Commercial Western U.S. 385.9 290.2 Residential, Hotel and Other Western U.S. 49.3 49.8 Commercial (1)(2) Ireland 446.5 331.5 Multifamily (1)(2) Ireland 147.4 131.3 Residential and Other (1)(2) Ireland 42.9 28.0 Hotel Ireland 85.1 75.7 Commercial (2) Spain 94.2 84.4 Commercial (1)(2) United Kingdom 599.1 616.9 Secured investment debt 3,052.5 2,788.6 Unsecured investment debt (1)(2) United Kingdom 1,315.6 1,192.4 Investment debt (excluding loan fees) $ 4,368.1 $ 3,981.0 Unamortized loan fees (27.3 ) (24.9 ) Total Investment debt $ 4,340.8 $ 3,956.1 (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 (discount) as of September 30, 2017 and December 31, 2016 was ( $0.4 million ) and $0.9 million , respectively. (2) Kennedy Wilson owned approximately 23.8% and 23.6% of the total issued share capital of KWE as of September 30, 2017 and December 31, 2016 , respectively. See the table below for a detailed breakout. (Dollars in millions) Carrying amount of investment debt as of (1) Types of Property Pledged as Collateral (KWE) Region September 30, December 31, Commercial (1)(2) Ireland 285.8 254.7 Commercial (1)(2) Spain 94.2 84.4 Commercial (1)(2) United Kingdom 528.0 551.4 Investment debt $ 908.0 $ 890.5 Unsecured (1)(2) United Kingdom 1,315.6 1,192.4 Investment debt (excluding loan fees) $ 2,223.6 $ 2,082.9 Unamortized loan fees (12.2 ) (13.3 ) Total Investment debt $ 2,211.4 $ 2,069.6 (1) The mortgage loan 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 discount as of September 30, 2017 and December 31, 2016 was $4.3 million and $4.1 million , respectively. (2) Kennedy Wilson owned approximately 23.8% and 23.6% of the total issued share capital of KWE as of September 30, 2017 and December 31, 2016 , respectively. The investment debt had a weighted average interest rate of 3.39% and 3.33% per annum at September 30, 2017 and December 31, 2016 , respectively. As of September 30, 2017 , 68% of KW Group's investment level debt is fixed rate, 15% is floating rate with interest caps and 17% is 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 . During the second quarter of 2015, KWE completed its inaugural bond offering of approximately $401.9 million (based on September 30, 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 $268.0 million (based on September 30, 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 September 30, 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 $649.8 million (based on September 30, 2017 rates) ( €550 million ) (the "KWE Notes"). The KWE Notes were issued at a discount and have a carrying value of $645.9 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 nine months ended September 30, 2017 , KW Group recognized a loss of $17.9 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 (as defined below), and are subject to the same restrictive covenants. The trust deed that governs the bonds contains 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 September 30, 2017 , KWE was in compliance with these covenants. In August 2014, KWE entered into a three -year unsecured floating rate revolving debt facility ("KWE Facility") with Bank of America Merrill Lynch, Deutsche Bank, and J.P. Morgan Chase of approximately $301.5 million ( £225 million ) based on rates as of September 30, 2017 . As of September 30, 2017 , the unsecured credit facility was undrawn, with $301.5 million ( £225 million ) still available based on rates as of September 30, 2017 . On July 11, 2017, KWE secured an extension to the terms of the KWE Facility. On October 20, 2017 the KWE Facility was terminated. (see Note 16 for further details). During the nine months ended September 30, 2017 , six acquisitions were partially financed with mortgages, one existing mortgage was refinanced, and one investment acquired supplemental financing. The aggregate maturities of investment debt subsequent to September 30, 2017 are as follows: (Dollars in millions) Aggregate Maturities 2017 $ 61.6 2018 173.5 2019 605.5 2020 269.5 2021 103.8 Thereafter 3,154.6 4,368.5 Debt discount (0.4 ) Unamortized loan fees (27.3 ) $ 4,340.8

Senior Notes

Senior Notes	9 Months Ended
	Sep. 30, 2017
Debt Disclosure [Abstract]
SENIOR NOTES	SENIOR NOTES September 30, 2017 December 31, 2016 (Dollars in millions) Unamortized Unamortized Interest Rate Maturity Date Face Value Net Premium/(Discount) Carrying Value Face Value Net Premium/(Discount) Carrying Value 2042 Notes 7.75% 12/1/2042 $ 55.0 $ — $ 55.0 $ 55.0 $ — $ 55.0 2024 Notes 5.88% 4/1/2024 900.0 (2.0 ) 898.0 900.0 (2.2 ) 897.8 Senior Notes $ 955.0 $ (2.0 ) $ 953.0 $ 955.0 $ (2.2 ) $ 952.8 Unamortized loan fees (14.9 ) (16.2 ) Total Senior Notes $ 938.1 $ 936.6 In August 2016, Kennedy Wilson, Inc., (the "Issuer") completed an additional public offering of $250.0 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. On October 3, 2017 the Company announced its election to redeem in full the 2042 Notes at a redemption price equal to 100% of the principal amount. See Subsequent Events footnote for more detail. The indentures governing the 2024 Notes and 2042 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, to make restricted payments, pay dividends or make any other distributions from restricted subsidiaries, redeem or repurchase capital stock, sell assets or subsidiary stock, 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 2024 and 2042 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 September 30, 2017 , the maximum balance sheet leverage ratio was 1.29 to 1.00. See Note 15 for the guarantor and non-guarantor financial statements.

Borrowings Under Lines of Credi

Borrowings Under Lines of Credit	9 Months Ended
	Sep. 30, 2017
Debt Disclosure [Abstract]
BORROWINGS UNDER LINES OF CREDIT	BORROWINGS UNDER LINES OF CREDIT KW Revolving Facility During the nine months ended September 30, 2017 , Kennedy-Wilson, Inc. (the “Borrower”), drew $400.0 million and repaid $50.0 million on the $475 million unsecured revolving credit facility (the “KW Revolving Facility”). As of September 30, 2017 , there was $350.0 million outstanding under the KW Revolving Facility, and $125.0 million was still available. As of December 31, 2016 , the KW Revolving Facility was undrawn, and $475.0 million was still available. Refer to Note 16 for the use of the funds. On December 10, 2015, the Borrower, a wholly-owned subsidiary of Kennedy-Wilson Holdings, Inc. ("KWH") entered into the KW Revolving Facility with a syndicate of lenders including Bank of America, N.A., JP Morgan 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 and City National Bank with 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. Subject to certain conditions precedent and at the Borrower’s option, the maturity date of the KW Revolving Facility may be extended by one year . The KW Revolving Facility has certain covenants that, among other things, limit the Borrower 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 that governs the KW Revolving Facility requires the Borrower 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 1.60 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 $920,660,505 plus an amount equal to fifty percent ( 50% ) of net equity proceeds received by the Borrower after September 30, 2015, 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 the greater of 3.5% of consolidated total asset value (as defined in the credit agreement) and $138,187,197 , (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 $250 million . As of September 30, 2017 , the Borrower’s consolidated leverage ratio was 60.8% , its fixed charge coverage ratio was 2.7 to 1.00, its consolidated tangible net worth was $1,323.1 million , its adjusted secured leverage ratio was 40.1% , its secured recourse leverage ratio was 1.1% , its recourse leverage ratio was 1.03 , and liquidity was $1,077.8 million . The obligations of the Borrower pursuant to the Credit Agreement are guaranteed by KWH and certain of its wholly-owned subsidiaries. On October 20, 2017, the Company and certain subsidiaries of the Company secured an amended and restated $700 million unsecured revolving credit and term loan facility and terminated the KWE Revolving Facility described above. See Subsequent Events footnote for more detail.

Equity

Equity	9 Months Ended
	Sep. 30, 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. During the nine months ended September 30, 2017 , Kennedy Wilson repurchased and retired 77,155 shares for $1.6 million under the stock repurchase program. During the nine months ended September 30, 2016 , Kennedy Wilson repurchased and retired 1,453,837 shares for $28.7 million under the stock repurchase program. Dividend Distributions During the following periods, Kennedy Wilson declared and paid the following cash distributions on its common and preferred stock: Nine Months Ended September 30, 2017 Nine Months Ended September 30, 2016 (Dollars in millions) Declared Paid Declared Paid Preferred Stock Series B (1) — — 1.6 1.6 Total Preferred Stock — — 1.6 1.6 Common Stock 58.6 57.1 48.1 45.9 Total (2) $ 58.6 $ 57.1 $ 49.7 $ 47.5 (1) The decrease in Series B dividends during the current year is due to the early conversion of the Series B preferred stock into common shares during the fourth quarter of 2016. (2) The difference between declared and paid is the amount accrued on the consolidated balance sheets. Share-based Compensation During the three months ended September 30, 2017 and 2016 , KW Group recognized $9.3 million and $15.6 million of compensation expense related to the vesting of restricted stock grants. During the nine months ended September 30, 2017 and 2016 , KW Group recognized $29.4 million and $47.8 million of compensation expense related to the vesting of restricted stock grants. The decrease for the three and nine months ended September 30, 2017 is mainly due to restricted stock that was granted in 2012 under the Company’s Amended and Restated 2009 Equity Participation Plan being fully vested as of December 31, 2016. 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 nine months ended September 30, 2017 and 2016 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 nine months ended September 30, 2017 and 2016 were 1,460,251 shares and 693,942 shares, respectively. During the nine months ended September 30, 2017 and 2016 , total payments for the employees’ tax obligations to the taxing authorities were $34.0 million and $14.7 million , respectively. These activities are reflected as a financing activity within KW Group's consolidated statements of cash flows. On April 28, 2017, the Board of Director of the Company adopted the Second Amended and Restated 2009 Equity Participation Plan (the “Second Amended and Restated Plan”), subject to approval by the Company’s stockholders. On June 15, 2017, the Company’s stockholders approved the Second Amended and Restated Plan and the Second Amended and Restated Plan became effective. The Second Amended and Restated Plan amends and restates the Company’s Amended and Restated 2009 Equity Participation Plan in its entirety. The Second Amended and Restated Plan provides for the grant of stock options, stock appreciation rights, restricted stock, restricted stock units, distribution equivalent units, performance stock awards, performance unit awards and stock appreciation rights to eligible employees, directors and consultants of the Company and its affiliates, including awards that are intended to constitute “qualified performance-based compensation” within the meaning of Section 162(m) of the Internal Revenue Code of 1986, as amended. A description of the material terms of the Second Amended and Restated Plan was included in the Company’s definitive proxy statement on Schedule 14A filed with the Securities and Exchange Commission on April 28, 2017. Accumulated Other Comprehensive Income The following table summarizes the changes in each component of accumulated other comprehensive loss, net of taxes: Foreign Currency Translation Currency Derivative Contracts Marketable Securities Total Accumulated Other Comprehensive Loss (Dollars in millions) Balance at December 31, 2016 $ (98.6 ) $ 27.5 $ (0.1 ) $ (71.2 ) Unrealized gains (losses), arising during the period 197.7 (57.8 ) 0.3 140.2 Amounts reclassified out of AOCI during the period 0.1 — — 0.1 Noncontrolling interest (131.7 ) 24.2 — (107.5 ) Deferred taxes on unrealized (losses) gains, arising during the period (26.4 ) 13.5 (0.1 ) (13.0 ) Balance at September 30, 2017 $ (58.9 ) $ 7.4 $ 0.1 $ (51.4 ) As discussed throughout this report, the Company is required under U.S. GAAP to consolidate certain non-wholly owned subsidiaries or investments that it controls. As such, the Company's 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. For example, the Company is required to translate the activities of KWE into U.S. dollars even though KWE does not invest in U.S. dollar denominated assets. Therefore, it is important to look at the provided currency translation and currency derivative adjustment information net of noncontrolling interests to get a more accurate understanding of the actual currency exposure for the Company . The local currencies for the Company's interests in foreign operations include the euro, the British pound sterling, and the Japanese yen. The related amounts on KW Group's balance sheets are translated into U.S. dollars at the exchange rates at the respective financial statement date, while amounts on its statements of operations are translated at the average exchange rates during the respective period. The decrease in the unrealized losses on foreign currency translation is a result of the weakening of the U.S. dollar against the euro, the British pound and the Japanese yen during the nine months ended September 30, 2017 . In order to manage currency fluctuations, KW Group entered into currency derivative contracts to manage its exposure to currency fluctuations between its functional currency (U.S. dollar) and the functional currency (euro, the British pound and the Japanese yen) of certain of its wholly-owned and consolidated subsidiaries. See note 6 for a more detailed discussion of KW Group's currency derivative contracts. Noncontrolling Interests Noncontrolling interests consist of the ownership interests of noncontrolling shareholders in consolidated subsidiaries, and are presented separately on KW Group's balance sheet. As of September 30, 2017 and December 31, 2016 , KW Group had noncontrolling interest of $1.4 billion and $1.3 billion , respectively. Kennedy Wilson owned approximately 23.8% and 23.6% of KWE’s total issued share capital as of September 30, 2017 and December 31, 2016, respectively. The noncontrolling interest holders in KWE had an equity balance of $1.2 billion and $1.3 billion as of September 30, 2017 and December 31, 2016, respectively. Due to the terms provided in the investment management agreement between KWE and a wholly-owned subsidiary of Kennedy Wilson, the results of KWE are consolidated in KW Group's financial statements. 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 $697.2 million in cash and issued 37,226,695 shares of KWH to shareholders of KWE stock. See Subsequent Events note for more information on the acquisition.

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 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. The Company only presents 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 three and nine months ended September 30, 2017 and 2016 : Three Months Ended September 30, Nine Months Ended September 30, (Dollars in millions, except share and per share amounts) 2017 2016 2017 2016 Net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ (8.9 ) $ (2.5 ) $ 1.3 $ (11.6 ) Dividends allocated to participating securities (0.2 ) (0.4 ) (0.7 ) (1.3 ) Net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders, net of allocation to participating securities (9.1 ) (2.9 ) 0.6 (12.9 ) Dividends declared on common shares (19.3 ) (15.6 ) (57.9 ) (46.7 ) Undistributed losses attributable to Kennedy-Wilson Holdings, Inc. common shareholders, net of allocation to participating securities $ (28.4 ) $ (18.5 ) $ (57.3 ) $ (59.6 ) Distributed earnings per share $ 0.17 $ 0.14 $ 0.52 $ 0.42 Undistributed losses per share (0.25 ) (0.17 ) (0.51 ) (0.54 ) (Loss) income per basic (0.08 ) (0.03 ) 0.01 (0.12 ) (Loss) income per diluted $ (0.08 ) $ (0.03 ) $ 0.01 $ (0.12 ) Weighted average shares outstanding for basic 111,966,716 108,634,228 111,955,924 108,966,540 Weighted average shares outstanding for diluted (1) 111,966,716 108,634,228 111,955,924 108,966,540 Dividends declared per common share $ 0.17 $ 0.14 $ 0.51 $ 0.42 (1) For the three and nine months ended September 30, 2017 , a total of 1,145,032 and 1,028,565 , respectively, potentially dilutive securities have not been included in the diluted weight average shares as they are anti-dilutive. For the three and nine months ended September 30, 2016 , a total of 3,782,564 and 3,493,709 , respectively, potentially dilutive securities have not been included in the diluted weighted average shares as they are anti-dilutive. Potentially anti-dilutive securities include preferred stock and unvested restricted stock grants.

Segment Information

Segment Information	9 Months Ended
	Sep. 30, 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 KW Investments invests in multifamily, office, retail, and residential properties as well as loans secured by real estate in the Western U.S., United Kingdom, Ireland, Spain, Italy and Japan. The Company has an average ownership interest across all investments of approximately 39% as of September 30, 2017 . When it has partners, those partners include public shareholders, financial institutions, foundations, endowments, high net worth individuals and other institutional investors. In these instances, the Company is typically the general partner in the arrangement with a promoted interest in the profits of its investments beyond the Company's ownership percentage. These promoted interests are typically fees earned by IMRES as described below. 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 shareholders of KWE, financial institutions, institutional investors, insurance companies, developers, builders and government agencies. 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 the Company's through fees and commissions. The Company manages approximately 59 million square feet of properties for the Company and its investment partners (including KWE) in the United States, Europe, and Asia, which includes assets the Company has ownership interests in and third party owned assets. With 27 offices throughout the United States, the United Kingdom, Ireland, Jersey, Spain and Japan, the Company has the capabilities and resources to provide investment management and 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. Additionally, IMRES plays a critical role in supporting the Company's 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. The following tables summarize income activity by segment and corporate for the three and nine months ended September 30, 2017 and 2016 and balance sheet data as of September 30, 2017 and December 31, 2016 : Three Months Ended September 30, Nine Months Ended September 30, (Dollars in millions) 2017 2016 2017 2016 Investments Rental $ 125.5 $ 122.9 $ 373.6 $ 363.1 Hotel 37.3 31.4 95.8 87.3 Sale of real estate 89.8 2.5 103.4 16.7 Loan purchases, loan originations and other 8.5 3.4 15.0 9.2 Total revenue 261.1 160.2 587.8 476.3 Operating expenses (147.1 ) (80.4 ) (320.8 ) (241.7 ) Depreciation and amortization (55.4 ) (50.0 ) (157.2 ) (147.3 ) Income from unconsolidated investments 12.6 31.3 46.9 56.6 Operating income 71.2 61.1 156.7 143.9 Gain on sale of real estate 5.3 21.5 77.0 76.0 Acquisition-related gains — 7.6 — 16.2 Acquisition-related expenses (1.0 ) (1.0 ) (2.3 ) (9.4 ) Interest expense-investments (37.9 ) (36.8 ) (107.8 ) (102.9 ) Other (2.9 ) 1.9 (2.4 ) 7.6 Income before provision for income taxes 34.7 54.3 121.2 131.4 Provision for income taxes (1.4 ) 1.6 (3.7 ) (2.6 ) Net income 33.3 55.9 117.5 128.8 Net income attributable to the noncontrolling interests (18.7 ) (15.1 ) (31.3 ) (41.3 ) Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 14.6 $ 40.8 $ 86.2 $ 87.5 Three Months Ended September 30, Nine Months Ended September 30, (Dollars in millions) 2017 2016 2017 2016 Investment Management and Real Estate Services Investment management, property services and research fees (includes $7.5, $5.4, $17.5, and $22.9 of related party fees) $ 16.1 $ 14.1 $ 41.3 $ 46.7 Total revenue 16.1 14.1 41.3 46.7 Operating expenses (13.7 ) (14.2 ) (40.1 ) (43.6 ) Income from unconsolidated investments 0.3 0.4 2.0 2.7 Operating income 2.7 0.3 3.2 5.8 Net income attributable to the noncontrolling interests — — — — Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 2.7 $ 0.3 $ 3.2 $ 5.8 Three Months Ended September 30, Nine Months Ended September 30, (Dollars in millions) 2017 2016 2017 2016 Corporate Operating expenses $ (15.0 ) $ (21.5 ) $ (46.8 ) $ (65.0 ) Operating loss (15.0 ) (21.5 ) (46.8 ) (65.0 ) Interest expense-corporate (18.9 ) (14.5 ) (51.1 ) (38.8 ) Other 2.6 — 7.0 — Loss before provision for income taxes (31.3 ) (36.0 ) (90.9 ) (103.8 ) Benefit from (provision for) income taxes 5.1 (7.1 ) 2.8 0.5 Net loss (26.2 ) (43.1 ) (88.1 ) (103.3 ) Preferred dividends and accretion of preferred stock issuance costs — (0.5 ) — (1.6 ) Net loss attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ (26.2 ) $ (43.6 ) $ (88.1 ) $ (104.9 ) Three Months Ended September 30, Nine Months Ended September 30, (Dollars in millions) 2017 2016 2017 2016 Consolidated Rental $ 125.5 $ 122.9 $ 373.6 $ 363.1 Hotel 37.3 31.4 95.8 87.3 Sale of real estate 89.8 2.5 103.4 16.7 Investment management, property services and research fees (includes $7.5, $5.4, $17.5, and $22.9 of related party fees) 16.1 14.1 41.3 46.7 Loans and other 8.5 3.4 15.0 9.2 Total revenue 277.2 174.3 629.1 523.0 Operating expenses (175.8 ) (116.1 ) (407.6 ) (350.3 ) Depreciation and amortization (55.4 ) (50.0 ) (157.2 ) (147.3 ) Total operating expenses (231.2 ) (166.1 ) (564.8 ) (497.6 ) Income from unconsolidated investments 12.9 31.7 48.8 59.3 Operating income 58.9 39.9 113.1 84.7 Gain on sale of real estate 5.3 21.5 77.0 76.0 Acquisition-related gain — 7.6 — 16.2 Acquisition-related expenses (1.0 ) (1.0 ) (2.3 ) (9.4 ) Interest expense-investment (37.9 ) (36.8 ) (107.8 ) (102.9 ) Interest expense-corporate (18.9 ) (14.5 ) (51.1 ) (38.8 ) Other (0.3 ) 1.9 4.6 7.6 Income before benefit from (provision for) income taxes 6.1 18.6 33.5 33.4 Benefit from (provision for) income taxes 3.7 (5.5 ) (0.9 ) (2.1 ) Net income 9.8 13.1 32.6 31.3 Net income attributable to the noncontrolling interests (18.7 ) (15.1 ) (31.3 ) (41.3 ) Preferred dividends and accretion of preferred stock issuance costs — (0.5 ) — (1.6 ) Net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ (8.9 ) $ (2.5 ) $ 1.3 $ (11.6 ) (Dollars in millions) September 30, 2017 December 31, 2016 Total Assets Investments $ 7,977.1 $ 7,375.5 Investment management and real estate services 95.2 78.1 Corporate 464.3 205.5 Total assets $ 8,536.6 $ 7,659.1

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2017
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES In determining the quarterly provisions for income taxes, the Company calculates income tax expense based on actual year-to-date income and statutory tax rates. The year-to-date income tax expense reflects the impact of income allocated to noncontrolling interest which is generally not subject to corporate tax as well as the Company's tax adjustments associated with uncertain tax positions. During the nine months ended September 30, 2017 , KW Group generated pretax book income of $33.5 million related to its global operations, and recorded a tax provision of $0.9 million . On January 1, 2017, the Company adopted ASU 2016-09 Improvements to Share Based Accounting. As a result of the adoption of ASU 2016-09, the Company recorded an adjustment to opening retained earnings of $9.3 million for excess tax benefits from share awards which had not been recognized under the prior accounting standard. In addition, as a result of the adoption of ASU 2016-09, the Company recorded a tax benefit of $4.1 million through September 30, 2017 related to excess tax benefits realized from the vesting of restricted stock awards and dividend equivalents on unvested restricted stock. The difference between the U.S. federal rate of 35% and the Company's effective rate is primarily attributable to excess tax benefit from vesting of restricted stock awards, income earned by noncontrolling interests which is not subject to corporate taxes, and non-deductible depreciation in the United Kingdom. The Company has subsidiaries in the United Kingdom, Ireland, Luxembourg, Spain and Jersey which manage the Company's European real estate investments as well as subsidiaries in Ireland and Scotland that operate hotel businesses. As of September 30, 2017 , two of the Company's foreign subsidiaries have positive, accumulated earnings of $12.6 million . U.S. domestic taxes have not been provided on amounts earned by such foreign companies since it is the Company's plan to indefinitely reinvest amounts earned by these foreign subsidiaries. If this amount was repatriated to the United States, additional U.S. domestic taxes of $3.1 million would be incurred.

Guarantor and Non-Guarantor Fin

Guarantor and Non-Guarantor Financial Statements	9 Months Ended
	Sep. 30, 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 include: (1) Condensed consolidating balance sheets as of September 30, 2017 and December 31, 2016 ; consolidating statements of operations for the three and nine months ended September 30, 2017 and 2016 ; consolidating statements of comprehensive income for the three and nine months ended September 30, 2017 and 2016 ; and condensed consolidating statements of cash flows for the nine months ended September 30, 2017 and 2016 , of (a) Kennedy-Wilson Holdings, Inc., as the parent, (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, 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 and for the three and nine months ended September 30, 2017 or 2016 . CONDENSED CONSOLIDATING BALANCE SHEET AS OF SEPTEMBER 30, 2017 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Assets Cash and cash equivalents $ — $ 441.7 $ 45.5 $ 25.7 $ — $ 512.9 Cash held by consolidated investments — — — 719.8 — 719.8 Accounts receivable — — 51.8 34.8 — 86.6 Loan purchases and originations — 0.3 5.8 79.3 — 85.4 Real estate and acquired in place lease values, net of accumulated depreciation and amortization — — 1,507.6 4,813.2 — 6,320.8 Unconsolidated investments — 19.5 313.4 174.9 — 507.8 Investments in and advances to consolidated subsidiaries 1,032.9 1,936.5 1,134.3 — (4,103.7 ) — Other assets — 1.5 45.3 256.5 — 303.3 Total assets $ 1,032.9 $ 2,399.5 $ 3,103.7 $ 6,104.2 $ (4,103.7 ) $ 8,536.6 Liabilities and equity Liabilities Accounts payable $ — $ 0.9 $ 1.2 $ 18.3 $ — $ 20.4 Accrued expenses and other liabilities 19.5 77.6 159.7 236.2 — 493.0 Investment debt — — 1,006.3 3,334.5 — 4,340.8 Senior notes payable — 938.1 — — — 938.1 Line of credit — 350.0 — — — 350.0 Total liabilities 19.5 1,366.6 1,167.2 3,589.0 — 6,142.3 Equity Kennedy-Wilson Holdings, Inc. shareholders' equity 1,013.4 1,032.9 1,936.5 1,134.3 (4,103.7 ) 1,013.4 Noncontrolling interests — — — 1,380.9 — 1,380.9 Total equity 1,013.4 1,032.9 1,936.5 2,515.2 (4,103.7 ) 2,394.3 Total liabilities and equity $ 1,032.9 $ 2,399.5 $ 3,103.7 $ 6,104.2 $ (4,103.7 ) $ 8,536.6 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 $ 108.8 $ — $ 260.2 Cash held by consolidated investments — — — 625.5 — 625.5 Accounts receivable — — 37.5 33.8 — 71.3 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 2,073.2 1,171.6 — (4,308.6 ) — Other assets — 2.6 39.7 202.3 — 244.6 Total assets $ 1,063.8 $ 2,200.9 $ 3,168.8 $ 5,534.2 $ (4,308.6 ) $ 7,659.1 Liabilities Accounts payable $ — $ 0.5 $ 1.6 $ 9.1 $ — 11.2 Accrued expense and other liabilities 15.8 200.0 157.2 39.1 — 412.1 Senior notes payable — 936.6 — — — 936.6 Investment debt — — 936.8 3,019.3 — 3,956.1 Total liabilities 15.8 1,137.1 1,095.6 3,067.5 — 5,316.0 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 $ 2,200.9 $ 3,168.8 $ 5,534.2 $ (4,308.6 ) $ 7,659.1 CONSOLIDATING STATEMENT OF OPERATIONS FOR THE THREE MONTHS ENDED SEPTEMBER 30, 2017 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Revenue Rental $ — $ — $ 36.1 $ 89.4 $ — $ 125.5 Hotel — — — 37.3 — 37.3 Sale of real estate — — 2.3 87.5 — 89.8 Investment management, property services and research fees — — 13.9 2.2 — 16.1 Loan purchases, loan originations and other — — — 8.5 — 8.5 Total revenue — — 52.3 224.9 — 277.2 Operating expenses Rental operating — — 13.8 24.2 — 38.0 Hotel operating — — — 26.1 — 26.1 Cost of real estate sold — — 1.8 61.6 — 63.4 Commission and marketing — — 2.0 0.1 — 2.1 Compensation and related 9.3 12.6 11.7 1.8 — 35.4 General and administrative — 3.8 4.3 2.7 — 10.8 Depreciation and amortization — 0.4 13.0 42.0 — 55.4 Total operating expenses 9.3 16.8 46.6 158.5 — 231.2 Income from unconsolidated subsidiaries — 0.6 7.4 4.9 — 12.9 Income from consolidated subsidiaries 19.1 46.4 42.8 — (108.3 ) — Operating income (loss) 9.8 30.2 55.9 71.3 (108.3 ) 58.9 Non-operating income (expense) Acquisition-related expenses — — (0.2 ) (0.8 ) — (1.0 ) Interest expense-corporate — (18.9 ) — — — (18.9 ) Interest expense-investment — — (10.1 ) (27.8 ) — (37.9 ) Gain on sale of real estate — — — 5.3 — 5.3 Other income (loss) — 2.7 (0.1 ) (2.9 ) — (0.3 ) Income (loss) before benefit from (provision for) income taxes 9.8 14.0 45.5 45.1 (108.3 ) 6.1 Benefit from (provision for) income taxes — 5.1 0.9 (2.3 ) — 3.7 Net income (loss) 9.8 19.1 46.4 42.8 (108.3 ) 9.8 Net income attributable to the noncontrolling interests — — — (18.7 ) — (18.7 ) Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. 9.8 19.1 46.4 24.1 (108.3 ) (8.9 ) Preferred dividends and accretion of preferred stock issuance costs — — — — — — Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 9.8 $ 19.1 $ 46.4 $ 24.1 $ (108.3 ) $ (8.9 ) CONSOLIDATING STATEMENT OF OPERATIONS FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2017 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Revenue Rental $ — $ — $ 104.4 $ 269.2 $ — $ 373.6 Hotel — — — 95.8 — 95.8 Sale of real estate — — 2.3 101.1 — 103.4 Investment management, property services and research fees — — 35.0 6.3 — 41.3 Loan purchases, loan originations and other — — 0.3 14.7 — 15.0 Total revenue — — 142.0 487.1 — 629.1 Operating expenses Rental operating — — 40.6 69.9 — 110.5 Hotel operating — — — 73.3 — 73.3 Cost of real estate sold — — 1.8 71.9 — 73.7 Commission and marketing — — 5.7 0.2 — 5.9 Compensation and related 29.4 40.4 37.9 5.8 — 113.5 General and administrative — 10.3 12.1 8.3 — 30.7 Depreciation and amortization — 1.1 36.6 119.5 — 157.2 Total operating expenses 29.4 51.8 134.7 348.9 — 564.8 Income from unconsolidated subsidiaries — 2.2 17.7 28.9 — 48.8 Income from consolidated subsidiaries 62.0 154.1 109.1 — (325.2 ) — Operating income (loss) 32.6 104.5 134.1 167.1 (325.2 ) 113.1 Non-operating income (expense) Acquisition-related expenses — (0.1 ) (0.9 ) (1.3 ) — (2.3 ) Interest expense-corporate — (51.1 ) — — — (51.1 ) Interest expense-investment — — (28.0 ) (79.8 ) — (107.8 ) Gain on sale of real estate — — 46.6 30.4 — 77.0 Other income (loss) — 5.9 — (1.3 ) — 4.6 Income (loss) before benefit from (provision for) income taxes 32.6 59.2 151.8 115.1 (325.2 ) 33.5 Benefit from (provision for) income taxes — 2.8 2.3 (6.0 ) — (0.9 ) Net income (loss) 32.6 62.0 154.1 109.1 (325.2 ) 32.6 Net income attributable to the noncontrolling interests — — — (31.3 ) — (31.3 ) Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. 32.6 62.0 154.1 77.8 (325.2 ) 1.3 Preferred dividends and accretion of preferred stock issuance costs — — — — — — Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 32.6 $ 62.0 $ 154.1 $ 77.8 $ (325.2 ) $ 1.3 CONSOLIDATING STATEMENT OF OPERATIONS FOR THE THREE MONTHS ENDED SEPTEMBER 30, 2016 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Revenue Rental $ — $ — $ 30.7 $ 92.2 $ — $ 122.9 Hotel — — — 31.4 — 31.4 Sale of real estate — — 2.5 — — 2.5 Investment management, property services and research fees — — 12.1 2.0 — 14.1 Loan purchases, loan originations and other — 0.1 0.2 3.1 — 3.4 Total revenue — 0.1 45.5 128.7 — 174.3 Operating expenses Rental operating — — 11.9 22.7 — 34.6 Hotel operating — — — 23.8 — 23.8 Cost of real estate sold — — 2.4 0.1 — 2.5 Commission and marketing — — 2.4 0.1 — 2.5 Compensation and related 15.5 13.9 10.9 1.9 — 42.2 General and administrative — 3.5 4.4 2.6 — 10.5 Depreciation and amortization — 0.4 10.5 39.1 — 50.0 Total operating expenses 15.5 17.8 42.5 90.3 — 166.1 Income from unconsolidated investments — 0.7 22.8 8.2 — 31.7 Income from consolidated subsidiaries 28.6 64.5 37.1 — (130.2 ) — Operating income (loss) 13.1 47.5 62.9 46.6 (130.2 ) 39.9 Non-operating income (expense) Acquisition-related gains — — 7.6 — — 7.6 Acquisition-related expenses — — (0.9 ) (0.1 ) — (1.0 ) Interest expense-corporate — (14.5 ) — — — (14.5 ) Interest expense-investment — — (6.8 ) (30.0 ) — (36.8 ) Gain (loss) on sale of real estate — — 0.4 21.1 — 21.5 Other income (loss) — 0.3 — 1.6 — 1.9 Income (loss) before benefit from (provision for) income taxes 13.1 33.3 63.2 39.2 (130.2 ) 18.6 Benefit (provision for) from income taxes — (4.7 ) 1.3 (2.1 ) — (5.5 ) Net income (loss) 13.1 28.6 64.5 37.1 (130.2 ) 13.1 Net (income) loss attributable to the noncontrolling interests — — — (15.1 ) — (15.1 ) Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. 13.1 28.6 64.5 22.0 (130.2 ) (2.0 ) Preferred dividends and accretion of preferred stock issuance costs (0.5 ) — — — — (0.5 ) Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 12.6 $ 28.6 $ 64.5 $ 22.0 $ (130.2 ) $ (2.5 ) CONSOLIDATING STATEMENT OF OPERATIONS FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2016 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Revenue Rental $ — $ — $ 81.9 $ 281.2 $ — $ 363.1 Hotel — — — 87.3 — 87.3 Sale of real estate — — 12.2 4.5 — 16.7 Investment management, property services and research fees — — 43.2 3.5 — 46.7 Loan purchases, loan originations and other — 0.1 0.8 8.3 — 9.2 Total revenue — 0.1 138.1 384.8 — 523.0 Operating expenses Rental operating — — 34.0 64.4 — 98.4 Hotel operating — — — 71.9 — 71.9 Cost of real estate sold — — 9.6 3.5 — 13.1 Commission and marketing — — 5.6 0.4 — 6.0 Compensation and related 47.8 39.5 35.4 5.7 — 128.4 General and administrative — 10.5 12.1 9.9 — 32.5 Depreciation and amortization — 1.0 28.0 118.3 — 147.3 Total operating expenses 47.8 51.0 124.7 274.1 — 497.6 Income from unconsolidated investments — 3.8 31.3 24.2 — 59.3 Income from consolidated subsidiaries 79.1 158.3 125.4 — (362.8 ) — Operating income (loss) 31.3 111.2 170.1 134.9 (362.8 ) 84.7 Non-operating income (expense) Acquisition-related gains — — 7.6 8.6 — 16.2 Acquisition-related expenses — — (2.1 ) (7.3 ) — (9.4 ) Interest expense-corporate — (38.8 ) — — — (38.8 ) Interest expense-investment — — (17.8 ) (85.1 ) — (102.9 ) Gain (loss) on sale of real estate — — 0.8 75.2 — 76.0 Other income (loss) — 7.6 (2.6 ) 2.6 — 7.6 Income (loss) before (provision for) benefit from income taxes 31.3 80.0 156.0 128.9 (362.8 ) 33.4 (Provision for) benefit from income taxes — (0.9 ) 2.3 (3.5 ) — (2.1 ) Net income (loss) 31.3 79.1 158.3 125.4 (362.8 ) 31.3 Net income attributable to the noncontrolling interests — — — (41.3 ) — (41.3 ) Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. 31.3 79.1 158.3 84.1 (362.8 ) (10.0 ) Preferred dividends and accretion of preferred stock issuance costs (1.6 ) — — — — (1.6 ) Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 29.7 $ 79.1 $ 158.3 $ 84.1 $ (362.8 ) $ (11.6 ) CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME FOR THE THREE MONTHS ENDED SEPTEMBER 30, 2017 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Net income $ 9.8 $ 19.1 $ 46.4 $ 42.8 $ (108.3 ) $ 9.8 Other comprehensive income, net of tax: Unrealized foreign currency translation gain 50.5 50.5 6.0 50.3 (106.8 ) 50.5 Unrealized loss on marketable securities 0.1 0.1 — — (0.1 ) 0.1 Amounts reclassified out of AOCI during the period 0.1 0.1 — 0.1 (0.2 ) 0.1 Unrealized currency derivative contracts loss (11.5 ) (11.5 ) (5.7 ) (5.8 ) 23.0 (11.5 ) Total other comprehensive (loss) income for the period $ 39.2 $ 39.2 $ 0.3 $ 44.6 $ (84.1 ) $ 39.2 Comprehensive income $ 49.0 $ 58.3 $ 46.7 $ 87.4 $ (192.4 ) $ 49.0 Comprehensive income attributable to noncontrolling interests — — — (52.9 ) — (52.9 ) Comprehensive income (loss) attributable to Kennedy-Wilson Holdings, Inc. $ 49.0 $ 58.3 $ 46.7 $ 34.5 $ (192.4 ) $ (3.9 ) CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2017 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Net income $ 32.6 $ 62.0 $ 154.1 $ 109.1 $ (325.2 ) $ 32.6 Other comprehensive income, net of tax: Unrealized foreign currency translation gain 171.3 171.3 24.4 162.6 (358.3 ) 171.3 Unrealized gain on marketable securities 0.2 0.2 — — (0.2 ) 0.2 Amounts reclassified out of AOCI during the period 0.1 0.1 — 0.1 (0.2 ) 0.1 Unrealized currency derivative contracts loss (44.3 ) (44.3 ) (15.5 ) (28.8 ) 88.6 (44.3 ) Total other comprehensive income for the period $ 127.3 $ 127.3 $ 8.9 $ 133.9 $ (270.1 ) $ 127.3 Comprehensive income $ 159.9 $ 189.3 $ 163.0 $ 243.0 $ (595.3 ) $ 159.9 Comprehensive income attributable to noncontrolling interests — — — (138.8 ) — (138.8 ) Comprehensive income (loss) attributable to Kennedy-Wilson Holdings, Inc. $ 159.9 $ 189.3 $ 163.0 $ 104.2 $ (595.3 ) $ 21.1 CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME FOR THE THREE MONTHS ENDED SEPTEMBER 30, 2016 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Net income $ 13.1 $ 28.6 $ 64.5 $ 37.1 $ (130.2 ) $ 13.1 Other comprehensive income (loss), net of tax: Unrealized foreign currency translation loss (1.1 ) (1.1 ) (2.2 ) (0.1 ) 3.4 (1.1 ) Amounts reclassified out of AOCI during the period 0.7 0.7 — 0.7 (1.4 ) 0.7 Unrealized gain on marketable securities 0.1 0.1 — — (0.1 ) 0.1 Unrealized currency derivative contracts (loss) gain (35.6 ) (35.6 ) 1.4 (37.0 ) 71.2 (35.6 ) Total other comprehensive loss for the period $ (35.9 ) $ (35.9 ) $ (0.8 ) $ (36.4 ) $ 73.1 $ (35.9 ) Comprehensive (loss) income $ (22.8 ) $ (7.3 ) $ 63.7 $ 0.7 $ (57.1 ) $ (22.8 ) Comprehensive loss attributable to noncontrolling interests — — — 15.7 — 15.7 Comprehensive (loss) income attributable to Kennedy-Wilson Holdings, Inc. $ (22.8 ) $ (7.3 ) $ 63.7 $ 16.4 $ (57.1 ) $ (7.1 ) CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2016 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Net income (loss) $ 31.3 $ 79.1 $ 158.3 $ 125.4 $ (362.8 ) $ 31.3 Other comprehensive income (loss), net of tax: Unrealized foreign currency translation loss (61.7 ) (61.7 ) (8.7 ) (64.4 ) 134.8 (61.7 ) Unrealized loss on marketable securities 0.2 0.2 — — (0.2 ) 0.2 Amounts reclassified out of AOCI during the period 3.4 3.4 — 3.4 (6.8 ) 3.4 Unrealized currency derivative contracts (loss) gain (125.0 ) (125.0 ) 11.8 (136.8 ) 250.0 (125.0 ) Total other comprehensive (loss) income for the period $ (183.1 ) $ (183.1 ) $ 3.1 $ (197.8 ) $ 377.8 $ (183.1 ) Comprehensive (loss) income $ (151.8 ) $ (104.0 ) $ 161.4 $ (72.4 ) $ 15.0 $ (151.8 ) Comprehensive loss attributable to noncontrolling interests — — — 127.8 — 127.8 Comprehensive (loss) income attributable to Kennedy-Wilson Holdings, Inc. $ (151.8 ) $ (104.0 ) $ 161.4 $ 55.4 $ 15.0 $ (24.0 ) CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2017 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Consolidated Total Net cash provided by (used in) operating activities $ 2.0 $ (205.6 ) $ 47.4 $ 285.8 $ 129.6 Cash flows from investing activities: Additions to loans — — — — — Collections of loans — — 6.4 10.5 16.9 Net proceeds from sale of real estate — — 110.6 151.3 261.9 Purchases of and additions to real estate — — (224.8 ) (250.2 ) (475.0 ) Proceeds from settlement of foreign derivative contracts — 3.1 — — 3.1 Purchases of foreign derivative contracts — (0.6 ) — — (0.6 ) Investment in marketable securities — — (0.6 ) — (0.6 ) Proceeds from sale of marketable securities — — 0.6 — 0.6 Distributions from unconsolidated investments — — 70.5 18.9 89.4 Contributions to unconsolidated investments — — (40.6 ) (21.7 ) (62.3 ) Additions to development project assets — — — (13.0 ) (13.0 ) Proceeds from development project assets — — — 36.9 36.9 Distributions from (investments in) consolidated subsidiaries, net 100.7 188.9 (39.1 ) (250.5 ) — Net cash provided by (used in) investing activities 100.7 191.4 (117.0 ) (317.8 ) (142.7 ) Cash flows from financing activities: Borrowings under line of credit — 400.0 — — 400.0 Repayment of line of credit — (50.0 ) — — (50.0 ) Borrowings under investment debt — — 106.0 152.3 258.3 Repayment of investment debt — — (35.8 ) (106.8 ) (142.6 ) Debt issue costs — (0.1 ) (0.5 ) (0.8 ) (1.4 ) Costs associated with KWE transaction (10.0 ) — — — (10.0 ) Repurchase and retirement of common stock (35.6 ) — — — (35.6 ) Dividends paid (57.1 ) — — — (57.1 ) Acquisition of KWE shares from noncontrolling interest holders — — — (3.3 ) (3.3 ) Contributions from noncontrolling interests, excluding KWE — — — 43.6 43.6 Distributions to noncontrolling interests — — — (93.3 ) (93.3 ) Net cash (used in) provided by financing activities (102.7 ) 349.9 69.7 (8.3 ) 308.6 Effect of currency exchange rate changes on cash and cash equivalents — — — 51.5 51.5 Net change in cash and cash equivalents — 335.7 0.1 11.2 347.0 Cash and cash equivalents, beginning of period — 106.0 45.4 734.3 885.7 Cash and cash equivalents, end of period $ — $ 441.7 $ 45.5 $ 745.5 $ 1,232.7 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS FOR THE NINE MONTHS ENDED SEPTEMBER 30, 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 ) $ (224.2 ) $ 213.2 $ 89.6 $ 78.4 Cash flows from investing activities: Additions to loans — (11.6 ) (4.5 ) — (16.1 ) Collections of loans — 6.6 5.0 133.8 145.4 Net proceeds from sale of real estate — — 11.5 254.5 266.0 Purchases of and additions to real estate — — (297.1 ) (451.3 ) (748.4 ) Additions to nonrefundable escrow deposits — — — — — Proceeds from settlement of foreign derivative contracts — 43.3 — — 43.3 Purchases of foreign derivative contracts — (5.8 ) — — (5.8 ) Investment in marketable securities — — (0.9 ) — (0.9 ) Distributions from unconsolidated investments — — 28.7 34.7 63.4 Contributions to unconsolidated investments — (1.0 ) (52.5 ) (16.8 ) (70.3 ) Distributions from (investments in) consolidated subsidiaries, net 91.1 (9.9 ) (115.1 ) 33.9 — Net cash provided by (used in) investing activities 91.1 21.6 (424.9 ) (11.2 ) (323.4 ) Cash flows from financing activities: Borrowings under senior notes payable — 250.0 — — 250.0 Borrowings under line of credit — 125.0 — — 125.0 Repayment of lines of credit — (125.0 ) — — (125.0 ) Borrowings under investment debt — — 236.7 696.7 933.4 Repayment of investment debt — — (24.6 ) (382.5 ) (407.1 ) Debt issue costs — (3.5 ) (1.2 ) (4.7 ) (9.4 ) Issuance of common stock Repurchase and retirement of common stock (43.4 ) — — — (43.4 ) Dividends paid (47.5 ) — — — (47.5 ) Acquisition of KWE shares from noncontrolling interest holders — — — (70.6 ) (70.6 ) Contributions from noncontrolling interests, excluding KWE — — — 25.3 25.3 Distributions to noncontrolling interests — — — (94.8 ) (94.8 ) Net cash (used in) provided by financing activities (90.9 ) 246.5 210.9 169.4 535.9 Effect of currency exchange rate changes on cash and cash equivalents — — — (47.3 ) (47.3 ) Net change in cash and cash equivalents — 43.9 (0.8 ) 200.5 243.6 Cash and cash equivalents, beginning of period — 80.2 37.0 614.4 731.6 Cash and cash equivalents, end of period $ — $ 124.1 $ 36.2 $ 814.9 $ 975.2

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2017
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS KWE Merger 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 “Transaction”). The scheme of arrangement (the “Scheme”) was authorized by the Royal Court of Jersey on October 18, 2017 and became effective on October 20, 2017 upon the delivery of the Royal Court’s Order to the Registrar of Companies in Jersey. KWE’s shares were delisted from the London Stock Exchange on October 23, 2017, and in accordance with the terms of the Original Offer (as defined below) and the New Offer (as defined below), 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. Under the terms of the Transaction, KWE shareholders received, for each KWE ordinary share, either (i) 0.667 shares of KWH common stock (the “Original Offer”); or (ii) a mixed consideration (the “New Offer”) consisting of (a) 300 pence in cash, paid by KWH; (b) 250 pence in cash, paid by KWE as a special distribution shortly after the effective date of the Transaction; and (c) 0.3854 shares of KWH common stock. The terms of the Transaction further provide that KWE shareholders will receive a closing dividend (the “Closing Dividend”), to be paid by KWE, comprising of the usual KWE quarterly dividends payable on KWE ordinary shares until the effective date of the Transaction, subject to certain adjustments to avoid duplicated payments which would otherwise result from the first KWH dividend being paid in respect of a period which includes part of the KWE dividend period in which the effective date of the Transaction falls. The Closing Dividend will be determined at the time of payment which is expected on or before January 10, 2018. Based on a British pound sterling to dollar exchange rate of 1.3182 as of October 19, 2017 (the last trading day prior to the effective date of the Transaction), the Closing Dividend is valued at approximately £0.12 ( $0.16 ) per KWE share for KWE shareholders who elected to receive the Original Offer and £0.13 ( $0.17 ) per KWE share for KWE shareholders who elected to receive the New Offer. KWE shareholders who elected to receive the New Offer were also eligible to participate in a mix and match facility (the “Mix and Match Facility”) to receive a greater proportion of cash than would otherwise have been payable under the terms of the New Offer (the “Additional Cash Election”) or to receive a greater proportion of shares of KWH common stock that would otherwise have been required to be issued under the terms of the New Offer (the “Additional Share Election”). Valid Additional Share Elections in respect of 30,889,536 KWE ordinary shares eligible to participate in the Scheme (the “Scheme Shares”), representing approximately 32.05% of the aggregate number of Scheme Shares, and valid Additional Cash Elections in respect of 11,227,921 Scheme Shares, representing approximately 11.65% of the aggregate number of Scheme Shares were made by KWE shareholders. Satisfaction of Additional Share Elections and Additional Cash Elections was dependent on valid countervailing elections being made by other eligible KWE shareholders. Valid Additional Cash Elections under the Scheme were satisfied in full. However, as a result of an insufficiency of valid Additional Cash Elections, there were valid Additional Share Elections which were not satisfied in relation to an aggregate of 9,974,888 Scheme Shares. KWE shareholders who made valid Additional Share Elections have therefore had such elections scaled down in accordance with the terms of the Scheme. These unsatisfied Additional Share Elections have been allocated among KWE shareholders who submitted valid Additional Share Elections in proportion to the numbers of Scheme Shares in respect of which they submitted such Additional Share Elections (including both Additional Share Elections which can be satisfied and those which cannot). As a result: (a) for each Scheme Share in respect of which a valid Additional Cash Election has been made, the relevant KWE shareholder received, in addition to the special distribution of 250 pence and the Closing Dividend, 859 pence; (b) for each Scheme Share in respect of which a valid Additional Share Election has been made which can be satisfied after scaling down as described above, the relevant KWE shareholder received, in addition to the special distribution of 250 pence and the Closing Dividend, 0.5923 new shares of KWH common stock, par value $0.0001 per share under the terms of the Scheme; and (c) for each Scheme Share in respect of which a valid Additional Share Election has been made which cannot be satisfied due to an insufficiency of countervailing Mix and Match Elections, the relevant KWE shareholder received the default New Offer consideration. On October 23, 2017, (i) new shares of KWH common stock were issued by KWH and admitted to listing and trading on the New York Stock Exchange, (ii) the KWH CREST depository interests representing an entitlement to a new share of KWH common stock (the “CDIs”) were credited to the CREST account(s) of the KWE shareholders who held their KWE ordinary shares in uncertificated form and are entitled to new shares of KWH common stock pursuant to the terms of the Transaction and (iii) KWH’s transfer agent delivered share certificates to each KWE shareholders who held KWE ordinary shares in certificated form and are entitled to new shares of KWH common stock pursuant to the terms of the Transaction. Cash consideration payable by KWH in the Transaction (including amounts due in respect of fractional entitlements) was settled via CREST (for KWE shareholders who held their KWE ordinary shares in uncertificated form) or by check (for KWE shareholders who held their KWE ordinary shares in certificated form) within 14 days after the effectiveness of the Transaction. Credit Facility On October 3, 2017, the Borrower, 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 is intended to amend and restate the Borrower’s existing revolving credit facility. The Borrower’s existing revolving credit facility has an outstanding balance of $350 million as of September 30, 2017. 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 , repaid $150.0 million on the existing revolving credit facility and borrowed an additional $200.0 million under the A&R Facility's revolving line. The Company has an outstanding balance of $400.0 million on the A&R Facility with $300.0 million available to be drawn under the revolving credit facility. On October 20, 2017, substantially concurrent with the effectiveness of the A&R Facility and KWH’s acquisition of all outstanding shares (other than shares owned by KWH or its subsidiaries or held in treasury) of KWE by means of a court sanctioned scheme of arrangement under Article 125 of the Companies (Jersey) Law, KWH terminated the existing multicurrency revolving credit facility agreement dated August 29, 2014, among KWE, as borrower, Bank of America Merrill Lynch International Limited, as administrative agent, and the lenders and other entities party thereto. 2042 Notes Redemption On October 3, 2017 the Company announced its election to redeem in full the 2042 Notes at a redemption price equal to 100% of the principal amount. The redemption date will be December 1, 2017, and accrued interest on the Senior Notes through the redemption date will be paid, on the redemption date, to holders of record of the Senior Notes as of the close of business on the day immediately preceding November 15, 2017. The Company evaluated subsequent events through the date these financial statements were issued, noting none that required disclosure in the consolidated financial statements.

Summary of Significant Accoun26

Summary of Significant Accounting Polices and Adoption of New Accounting Pronouncements (Policies)	9 Months Ended
	Sep. 30, 2017
Accounting Policies [Abstract]
REVENUE RECOGNITION	Performance fees or carried interests are allocated to the general partner, special limited partner or asset manager of the Company's real estate funds and loan pool participations based on the cumulative performance of the funds and loan pools and are subject to preferred return thresholds of the limited partners and participants. At the end of each reporting period, the Company calculates the performance fee that would be due to the general partner, special limited partner or asset manager's interests for a fund or loan pool, pursuant to the fund agreement or participation agreements, 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 the Company 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. A majority of the performance fees are recognized in investment management revenue in the Company's consolidated statements of operations.
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 ASC Subtopic 805-10, Business Combinations . Acquisition-related costs are expensed as incurred. The ownership of the other interest holders in consolidated subsidiaries is reflected as noncontrolling interests. 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 is valued, in part, based on third party valuations and management estimates also using an income approach.
NONCONTROLLING INTERESTS	Noncontrolling interest is the portion of equity (net assets) in a subsidiary not attributable, directly or indirectly to the Company. These amounts are reported within equity as a separate component in accordance with ASC Subtopic 810-10, Noncontrolling Interests in Consolidated Financial Statements . Revenues, expenses, gains, losses, net income (loss), and other comprehensive income (loss) are reported in the consolidated statements of operations at the consolidated amounts and net income (loss) and comprehensive income (loss) attributable to noncontrolling interests are separately stated.
FOREIGN CURRENCIES	The financial statements of KW Group's subsidiaries located outside the United States are measured using the local currency as this is their 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, the British pound sterling, and to a lesser extent Japanese yen. Cumulative translation adjustments, to the extent not included in cumulative net income, are included in the consolidated statement of equity as a component of accumulated other comprehensive income. Investment level debt is 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, the Company enters into hedging transactions, in the form of currency derivative contracts, that are designed to reduce its book equity exposure to foreign currencies.
DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES	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. Changes in fair value for fair value hedges are recognized in earnings. Fluctuations in foreign exchanges rates may have a significant impact on the Company's results of operations. In order to manage the potential exposure from adverse changes in foreign exchange rates arising from the Company’s net investments in foreign operations, the Company may enter into currency derivative contracts to hedge all or portions of the net investments in the Company’s non-U.S. dollar denominated foreign operations.
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 ASC Subtopic 740-10, Accounting for Uncertainty in Income Taxes , the effect of income tax positions is recognized only if those positions are more likely than not to be 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.
RECENT ACCOUNTING PRONOUNCEMENTS	In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, a 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 will identify the contract, identify any separate performance obligations in the contract, determine the transaction price, allocate the transaction price and recognize revenue when the performance obligation is satisfied. The new standard will apply to KW Group’s management and leasing fees (including performance fees), commissions, rental and hotel income. Management is evaluating the impact of the five step model and does not expect it to have a significant impact on the financial statements. ASU 2014-09 will also impact how sales of real estate are reported, which will become subject to ASC Subtopic 610-20 Other Income- Gains and Losses from the Derecognition of Nonfinancial Assets ("Subtopic 610-20") . The impact of this new standard will be based on terms of future real estate sales contracts. The new standard will replace most existing revenue recognition in GAAP when it becomes effective for the Company on January 1, 2018. The Company is planning on adopting a modified retrospective transition method when the guidance becomes effective. 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 KW Group'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 adoption of this standard did not have a material impact on KW Group'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, KW Group 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. 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. The Company does not expect the ASU to have a significant impact on KW Group's consolidated financial statements except that the Company may no longer record acquisition related gains when acquiring controlling interests in real estate investments. 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 KW Group'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 KW Group's consolidated financial statements.
RECLASSIFICATIONS	Certain balances included in prior year's financial statements have been reclassified to conform to the current year's presentation.
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. The Company only presents the earnings per share attributable to the common shareholders.

Real Estate and In-Place Leas27

Real Estate and In-Place Lease Value (Tables)	9 Months Ended
	Sep. 30, 2017
Real Estate [Abstract]
Schedule of Investment in Consolidated Real Estate Properties	During the nine months ended September 30, 2017 , KW Group recognized the following gains on sale of real estate: (Dollars in millions) Gain on sale of real estate Description Consolidated (1) NCI Net of NCI KW Two multifamily properties and one retail center in the Western U.S., one commercial development in Ireland and one residential property in the United Kingdom $ 85.7 $ 19.0 $ 66.7 KWE 16 commercial properties in the United Kingdom, two condo unit sales in Spain and a residential property in Spain 21.0 16.0 5.0 KW Group $ 106.7 $ 35.0 $ 71.7 (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. The following table summarizes KW Group's investment in consolidated real estate properties at September 30, 2017 and December 31, 2016 : September 30, December 31, (Dollars in millions) 2017 2016 Land $ 1,487.2 $ 1,383.2 Buildings 4,458.8 4,048.7 Building improvements 473.0 373.5 In-place lease values 426.1 383.1 6,845.1 6,188.5 Less accumulated depreciation and amortization (524.3 ) (374.3 ) Real estate and acquired in place lease values, net of accumulated depreciation and amortization $ 6,320.8 $ 5,814.2
Schedule of Business Acquisitions, by Acquisition	During the nine months ended September 30, 2017 , KW Group 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, three multifamily and one commercial property $ 54.1 $ 228.2 $ 22.7 $ 170.2 $ 3.8 $ 131.0 Ireland One development project $ 11.0 $ — $ — $ — $ 4.9 $ 7.4 $ 65.1 $ 228.2 $ 22.7 $ 170.2 $ 8.7 $ 138.4 (1) Excludes acquisition expenses and net other assets. The purchase price allocations for properties acquired during the nine months ended September 30, 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.
Business Acquisition, Pro Forma Information	The pro forma data presented below assumes that the acquisitions during the three and nine months ended September 30, 2017 occurred as of January 1, 2016. Three Months Ended September 30, Nine Months Ended September 30, (Dollars in millions, except for per share data) 2017 2016 2017 2016 Pro forma revenues $ 279.3 $ 181.0 $ 639.4 $ 543.1 Pro forma net income 10.8 17.5 37.7 44.8 Pro forma net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders (8.1 ) 1.6 5.6 1.2 Pro forma net (loss) income per share: Basic $ (0.07 ) $ 0.02 $ 0.05 $ 0.01 Diluted $ (0.07 ) $ 0.02 $ 0.05 $ 0.01

Unconsolidated Investments (Tab

Unconsolidated Investments (Tables)	9 Months Ended
	Sep. 30, 2017
Equity Method Investments and Joint Ventures [Abstract]
Schedule of Joint Ventures by Location and Investment Type	The following table details the Company's unconsolidated investments carrying value by investment type and geographic location as of September 30, 2017 : (Dollars in millions) Multifamily Commercial Residential and Other Total Western U.S. $ 219.5 $ 61.6 $ 196.1 $ 477.2 United Kingdom — 10.8 — 10.8 Spain — — 17.3 17.3 Japan 2.5 — — 2.5 Total $ 222.0 $ 72.4 $ 213.4 $ 507.8 The following table details the Company's unconsolidated investments by investment type and geographic location as of December 31, 2016 : (Dollars in millions) Multifamily Commercial Residential and Other Total Western U.S. $ 192.9 $ 65.3 $ 261.6 $ 519.8 United Kingdom — 13.8 — 13.8 Spain — — 15.9 15.9 Japan 6.1 — — 6.1 Total $ 199.0 $ 79.1 $ 277.5 $ 555.6
Schedule of Joint Venture Cash Distributions by Investment Type and Geographic Location	The following table details cash distributions by investment type and geographic location for the nine months ended September 30, 2017 : Multifamily Commercial Residential and Other Total (Dollars in millions) Operating Investing Operating Investing Operating Investing Operating Investing Western U.S. $ 22.2 $ 12.6 $ 24.9 $ 16.1 $ 17.7 $ 57.0 $ 64.8 $ 85.7 Japan 0.1 3.7 — — — — 0.1 3.7 United Kingdom — — 2.3 — — — 2.3 — Spain — — — — 0.4 — 0.4 — Total $ 22.3 $ 16.3 $ 27.2 $ 16.1 $ 18.1 $ 57.0 $ 67.6 $ 89.4

Fair Value Measurements and t29

Fair Value Measurements and the Fair Value Option (Tables)	9 Months Ended
	Sep. 30, 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 September 30, 2017 : (Dollars in millions) Level 1 Level 2 Level 3 Total Unconsolidated investments $ — $ — $ 342.9 $ 342.9 Marketable securities 7.8 — — 7.8 Currency derivative contracts — (111.0 ) — (111.0 ) Total $ 7.8 $ (111.0 ) $ 342.9 $ 239.7 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 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) September 30, 2017 December 31, 2016 FV Option $ 287.2 $ 282.4 Funds 55.7 47.0 Total $ 342.9 $ 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 three and nine months ended September 30, 2017 and 2016 : Three Months Ended September 30, Nine Months Ended September 30, (Dollars in millions) 2017 2016 2017 2016 Beginning balance $ 330.8 $ 236.6 $ 329.4 $ 223.8 Unrealized and realized gains 11.2 10.1 38.9 36.2 Unrealized and realized losses — (0.6 ) (0.8 ) (0.1 ) Contributions 22.4 10.2 47.5 30.3 Distributions (21.4 ) (29.2 ) (95.9 ) (64.0 ) Other (0.1 ) (0.1 ) 23.8 0.8 Ending balance $ 342.9 $ 227.0 $ 342.9 $ 227.0
Schedule of the Funds and Fair Value Option Investments, Significant Inputs	The table below describes the range of unobservable inputs for real estate assets: Estimated Rates Used for Capitalization Rates Discount Rates Office 4.50% - 8.60% 6.75% - 9.75% Retail 5.50% - 9.00% 7.25% - 11.00% Multifamily 4.75% - 7.75% 8.00% - 9.75% Land and condominium units N/A 8.00% - 15.00%
Schedule of Currency Forward Contracts	The table below details the currency derivative contracts KW Group held as of September 30, 2017 and the activity during the nine months ended September 30, 2017 : (Dollars in millions) September 30, 2017 Nine Months Ended September 30, 2017 Currency Hedged Underlying Currency Notional Hedge Asset Hedge Liability Change in Unrealized Gains (Losses) Realized Gains (Losses) Cash Received (Paid) Outstanding EUR USD € 145.0 $ 0.3 $ (6.1 ) $ (9.5 ) $ — $ — EUR (1) GBP € 360.0 — (87.0 ) (13.9 ) — — EUR (1)(2) GBP — — (17.9 ) — — GBP USD £ 381.0 3.3 (5.9 ) (16.5 ) — (0.4 ) GBP (3) USD £ 259.7 — (15.5 ) — (15.5 ) — Yen USD ¥ 115.1 — (0.1 ) (0.1 ) — (0.2 ) Total Outstanding 3.6 (114.6 ) (57.9 ) (15.5 ) (0.6 ) Settled Yen USD — — (0.1 ) — 0.1 GBP USD — — 0.2 0.2 3.0 Total Settled — — 0.1 0.2 3.1 Total 3.6 (114.6 ) (57.8 ) (15.3 ) 2.5 Noncontrolling interests — 66.3 24.2 — — Total - Kennedy Wilson share $ 3.6 $ (48.3 ) $ (33.6 ) $ (15.3 ) $ 2.5 (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 proposed acquisition of KWE. Derivative losses are offset by realized foreign currency exchange gains on translation of cash.

Other Assets (Tables)

Other Assets (Tables)	9 Months Ended
	Sep. 30, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Schedule of Other Assets	Other assets consist of the following: (Dollars in millions) September 30, 2017 December 31, 2016 Above-market leases, net of accumulated amortization of $42.0 and $28.1 at September 30, 2017 and December 31, 2016, respectively $ 67.3 $ 72.4 Development project asset 46.4 — Deferred tax asset, net 31.3 23.2 VAT receivable 30.5 28.4 Goodwill 23.9 23.9 Office furniture and equipment net of accumulated depreciation of $35.1 and $24.4 at September 30, 2017 and December 31, 2016, respectively 23.6 25.4 Straight line rent 21.6 11.7 Prepaid expenses 15.2 10.2 Other, net of accumulated amortization of $4.9 and $3.7 at September 30, 2017 and December 31, 2016, respectively 12.3 12.5 Acquisition costs 10.0 — Marketable securities (1) 7.8 7.5 Leasing commissions, net of accumulated amortization of $2.7 and $1.7 at September 30, 2017 and December 31, 2016, respectively 6.5 7.4 Hedge assets 3.6 20.2 Deposits 3.3 1.8 Other Assets $ 303.3 $ 244.6 (1) The amount above excludes Kennedy Wilson's 30.0 million shares in KWE as the investment is eliminated due to the consolidation of KWE's results.

Investment Debt (Tables)

Investment Debt (Tables)	9 Months Ended
	Sep. 30, 2017
Debt Disclosure [Abstract]
Schedule of Mortgage Loans and Notes Payable	Investment debt at September 30, 2017 and December 31, 2016 consists of the following: (Dollars in millions) Carrying Amount of Investment Debt as of (1) Investment Debt by Product Type Region September 30, December 31, Mortgage debt Multifamily (1) Western U.S. $ 1,202.1 $ 1,180.8 Commercial Western U.S. 385.9 290.2 Residential, Hotel and Other Western U.S. 49.3 49.8 Commercial (1)(2) Ireland 446.5 331.5 Multifamily (1)(2) Ireland 147.4 131.3 Residential and Other (1)(2) Ireland 42.9 28.0 Hotel Ireland 85.1 75.7 Commercial (2) Spain 94.2 84.4 Commercial (1)(2) United Kingdom 599.1 616.9 Secured investment debt 3,052.5 2,788.6 Unsecured investment debt (1)(2) United Kingdom 1,315.6 1,192.4 Investment debt (excluding loan fees) $ 4,368.1 $ 3,981.0 Unamortized loan fees (27.3 ) (24.9 ) Total Investment debt $ 4,340.8 $ 3,956.1 (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 (discount) as of September 30, 2017 and December 31, 2016 was ( $0.4 million ) and $0.9 million , respectively. (2) Kennedy Wilson owned approximately 23.8% and 23.6% of the total issued share capital of KWE as of September 30, 2017 and December 31, 2016 , respectively. See the table below for a detailed breakout. (Dollars in millions) Carrying amount of investment debt as of (1) Types of Property Pledged as Collateral (KWE) Region September 30, December 31, Commercial (1)(2) Ireland 285.8 254.7 Commercial (1)(2) Spain 94.2 84.4 Commercial (1)(2) United Kingdom 528.0 551.4 Investment debt $ 908.0 $ 890.5 Unsecured (1)(2) United Kingdom 1,315.6 1,192.4 Investment debt (excluding loan fees) $ 2,223.6 $ 2,082.9 Unamortized loan fees (12.2 ) (13.3 ) Total Investment debt $ 2,211.4 $ 2,069.6 (1) The mortgage loan 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 discount as of September 30, 2017 and December 31, 2016 was $4.3 million and $4.1 million , respectively. (2) Kennedy Wilson owned approximately 23.8% and 23.6% of the total issued share capital of KWE as of September 30, 2017 and December 31, 2016 , respectively. September 30, 2017 December 31, 2016 (Dollars in millions) Unamortized Unamortized Interest Rate Maturity Date Face Value Net Premium/(Discount) Carrying Value Face Value Net Premium/(Discount) Carrying Value 2042 Notes 7.75% 12/1/2042 $ 55.0 $ — $ 55.0 $ 55.0 $ — $ 55.0 2024 Notes 5.88% 4/1/2024 900.0 (2.0 ) 898.0 900.0 (2.2 ) 897.8 Senior Notes $ 955.0 $ (2.0 ) $ 953.0 $ 955.0 $ (2.2 ) $ 952.8 Unamortized loan fees (14.9 ) (16.2 ) Total Senior Notes $ 938.1 $ 936.6
Schedule of Maturities of Mortgage Loans and Notes Payable	The aggregate maturities of investment debt subsequent to September 30, 2017 are as follows: (Dollars in millions) Aggregate Maturities 2017 $ 61.6 2018 173.5 2019 605.5 2020 269.5 2021 103.8 Thereafter 3,154.6 4,368.5 Debt discount (0.4 ) Unamortized loan fees (27.3 ) $ 4,340.8

Senior Notes (Tables)

Senior Notes (Tables)	9 Months Ended
	Sep. 30, 2017
Debt Disclosure [Abstract]
Schedule of Senior Notes	Investment debt at September 30, 2017 and December 31, 2016 consists of the following: (Dollars in millions) Carrying Amount of Investment Debt as of (1) Investment Debt by Product Type Region September 30, December 31, Mortgage debt Multifamily (1) Western U.S. $ 1,202.1 $ 1,180.8 Commercial Western U.S. 385.9 290.2 Residential, Hotel and Other Western U.S. 49.3 49.8 Commercial (1)(2) Ireland 446.5 331.5 Multifamily (1)(2) Ireland 147.4 131.3 Residential and Other (1)(2) Ireland 42.9 28.0 Hotel Ireland 85.1 75.7 Commercial (2) Spain 94.2 84.4 Commercial (1)(2) United Kingdom 599.1 616.9 Secured investment debt 3,052.5 2,788.6 Unsecured investment debt (1)(2) United Kingdom 1,315.6 1,192.4 Investment debt (excluding loan fees) $ 4,368.1 $ 3,981.0 Unamortized loan fees (27.3 ) (24.9 ) Total Investment debt $ 4,340.8 $ 3,956.1 (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 (discount) as of September 30, 2017 and December 31, 2016 was ( $0.4 million ) and $0.9 million , respectively. (2) Kennedy Wilson owned approximately 23.8% and 23.6% of the total issued share capital of KWE as of September 30, 2017 and December 31, 2016 , respectively. See the table below for a detailed breakout. (Dollars in millions) Carrying amount of investment debt as of (1) Types of Property Pledged as Collateral (KWE) Region September 30, December 31, Commercial (1)(2) Ireland 285.8 254.7 Commercial (1)(2) Spain 94.2 84.4 Commercial (1)(2) United Kingdom 528.0 551.4 Investment debt $ 908.0 $ 890.5 Unsecured (1)(2) United Kingdom 1,315.6 1,192.4 Investment debt (excluding loan fees) $ 2,223.6 $ 2,082.9 Unamortized loan fees (12.2 ) (13.3 ) Total Investment debt $ 2,211.4 $ 2,069.6 (1) The mortgage loan 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 discount as of September 30, 2017 and December 31, 2016 was $4.3 million and $4.1 million , respectively. (2) Kennedy Wilson owned approximately 23.8% and 23.6% of the total issued share capital of KWE as of September 30, 2017 and December 31, 2016 , respectively. September 30, 2017 December 31, 2016 (Dollars in millions) Unamortized Unamortized Interest Rate Maturity Date Face Value Net Premium/(Discount) Carrying Value Face Value Net Premium/(Discount) Carrying Value 2042 Notes 7.75% 12/1/2042 $ 55.0 $ — $ 55.0 $ 55.0 $ — $ 55.0 2024 Notes 5.88% 4/1/2024 900.0 (2.0 ) 898.0 900.0 (2.2 ) 897.8 Senior Notes $ 955.0 $ (2.0 ) $ 953.0 $ 955.0 $ (2.2 ) $ 952.8 Unamortized loan fees (14.9 ) (16.2 ) Total Senior Notes $ 938.1 $ 936.6

Equity (Tables)

Equity (Tables)	9 Months Ended
	Sep. 30, 2017
Equity [Abstract]
Schedule of Dividends Declared and Paid	During the following periods, Kennedy Wilson declared and paid the following cash distributions on its common and preferred stock: Nine Months Ended September 30, 2017 Nine Months Ended September 30, 2016 (Dollars in millions) Declared Paid Declared Paid Preferred Stock Series B (1) — — 1.6 1.6 Total Preferred Stock — — 1.6 1.6 Common Stock 58.6 57.1 48.1 45.9 Total (2) $ 58.6 $ 57.1 $ 49.7 $ 47.5 (1) The decrease in Series B dividends during the current year is due to the early conversion of the Series B preferred stock into common shares during the fourth quarter of 2016. (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 loss, net of taxes: Foreign Currency Translation Currency Derivative Contracts Marketable Securities Total Accumulated Other Comprehensive Loss (Dollars in millions) Balance at December 31, 2016 $ (98.6 ) $ 27.5 $ (0.1 ) $ (71.2 ) Unrealized gains (losses), arising during the period 197.7 (57.8 ) 0.3 140.2 Amounts reclassified out of AOCI during the period 0.1 — — 0.1 Noncontrolling interest (131.7 ) 24.2 — (107.5 ) Deferred taxes on unrealized (losses) gains, arising during the period (26.4 ) 13.5 (0.1 ) (13.0 ) Balance at September 30, 2017 $ (58.9 ) $ 7.4 $ 0.1 $ (51.4 )

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following is a summary of the elements used in calculating basic and diluted income (loss) per share for the three and nine months ended September 30, 2017 and 2016 : Three Months Ended September 30, Nine Months Ended September 30, (Dollars in millions, except share and per share amounts) 2017 2016 2017 2016 Net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ (8.9 ) $ (2.5 ) $ 1.3 $ (11.6 ) Dividends allocated to participating securities (0.2 ) (0.4 ) (0.7 ) (1.3 ) Net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders, net of allocation to participating securities (9.1 ) (2.9 ) 0.6 (12.9 ) Dividends declared on common shares (19.3 ) (15.6 ) (57.9 ) (46.7 ) Undistributed losses attributable to Kennedy-Wilson Holdings, Inc. common shareholders, net of allocation to participating securities $ (28.4 ) $ (18.5 ) $ (57.3 ) $ (59.6 ) Distributed earnings per share $ 0.17 $ 0.14 $ 0.52 $ 0.42 Undistributed losses per share (0.25 ) (0.17 ) (0.51 ) (0.54 ) (Loss) income per basic (0.08 ) (0.03 ) 0.01 (0.12 ) (Loss) income per diluted $ (0.08 ) $ (0.03 ) $ 0.01 $ (0.12 ) Weighted average shares outstanding for basic 111,966,716 108,634,228 111,955,924 108,966,540 Weighted average shares outstanding for diluted (1) 111,966,716 108,634,228 111,955,924 108,966,540 Dividends declared per common share $ 0.17 $ 0.14 $ 0.51 $ 0.42 (1) For the three and nine months ended September 30, 2017 , a total of 1,145,032 and 1,028,565 , respectively, potentially dilutive securities have not been included in the diluted weight average shares as they are anti-dilutive. For the three and nine months ended September 30, 2016 , a total of 3,782,564 and 3,493,709 , respectively, potentially dilutive securities have not been included in the diluted weighted average shares as they are anti-dilutive. Potentially anti-dilutive securities include preferred stock and unvested restricted stock grants.

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2017
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	The following tables summarize income activity by segment and corporate for the three and nine months ended September 30, 2017 and 2016 and balance sheet data as of September 30, 2017 and December 31, 2016 : Three Months Ended September 30, Nine Months Ended September 30, (Dollars in millions) 2017 2016 2017 2016 Investments Rental $ 125.5 $ 122.9 $ 373.6 $ 363.1 Hotel 37.3 31.4 95.8 87.3 Sale of real estate 89.8 2.5 103.4 16.7 Loan purchases, loan originations and other 8.5 3.4 15.0 9.2 Total revenue 261.1 160.2 587.8 476.3 Operating expenses (147.1 ) (80.4 ) (320.8 ) (241.7 ) Depreciation and amortization (55.4 ) (50.0 ) (157.2 ) (147.3 ) Income from unconsolidated investments 12.6 31.3 46.9 56.6 Operating income 71.2 61.1 156.7 143.9 Gain on sale of real estate 5.3 21.5 77.0 76.0 Acquisition-related gains — 7.6 — 16.2 Acquisition-related expenses (1.0 ) (1.0 ) (2.3 ) (9.4 ) Interest expense-investments (37.9 ) (36.8 ) (107.8 ) (102.9 ) Other (2.9 ) 1.9 (2.4 ) 7.6 Income before provision for income taxes 34.7 54.3 121.2 131.4 Provision for income taxes (1.4 ) 1.6 (3.7 ) (2.6 ) Net income 33.3 55.9 117.5 128.8 Net income attributable to the noncontrolling interests (18.7 ) (15.1 ) (31.3 ) (41.3 ) Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 14.6 $ 40.8 $ 86.2 $ 87.5 Three Months Ended September 30, Nine Months Ended September 30, (Dollars in millions) 2017 2016 2017 2016 Investment Management and Real Estate Services Investment management, property services and research fees (includes $7.5, $5.4, $17.5, and $22.9 of related party fees) $ 16.1 $ 14.1 $ 41.3 $ 46.7 Total revenue 16.1 14.1 41.3 46.7 Operating expenses (13.7 ) (14.2 ) (40.1 ) (43.6 ) Income from unconsolidated investments 0.3 0.4 2.0 2.7 Operating income 2.7 0.3 3.2 5.8 Net income attributable to the noncontrolling interests — — — — Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 2.7 $ 0.3 $ 3.2 $ 5.8 Three Months Ended September 30, Nine Months Ended September 30, (Dollars in millions) 2017 2016 2017 2016 Corporate Operating expenses $ (15.0 ) $ (21.5 ) $ (46.8 ) $ (65.0 ) Operating loss (15.0 ) (21.5 ) (46.8 ) (65.0 ) Interest expense-corporate (18.9 ) (14.5 ) (51.1 ) (38.8 ) Other 2.6 — 7.0 — Loss before provision for income taxes (31.3 ) (36.0 ) (90.9 ) (103.8 ) Benefit from (provision for) income taxes 5.1 (7.1 ) 2.8 0.5 Net loss (26.2 ) (43.1 ) (88.1 ) (103.3 ) Preferred dividends and accretion of preferred stock issuance costs — (0.5 ) — (1.6 ) Net loss attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ (26.2 ) $ (43.6 ) $ (88.1 ) $ (104.9 ) Three Months Ended September 30, Nine Months Ended September 30, (Dollars in millions) 2017 2016 2017 2016 Consolidated Rental $ 125.5 $ 122.9 $ 373.6 $ 363.1 Hotel 37.3 31.4 95.8 87.3 Sale of real estate 89.8 2.5 103.4 16.7 Investment management, property services and research fees (includes $7.5, $5.4, $17.5, and $22.9 of related party fees) 16.1 14.1 41.3 46.7 Loans and other 8.5 3.4 15.0 9.2 Total revenue 277.2 174.3 629.1 523.0 Operating expenses (175.8 ) (116.1 ) (407.6 ) (350.3 ) Depreciation and amortization (55.4 ) (50.0 ) (157.2 ) (147.3 ) Total operating expenses (231.2 ) (166.1 ) (564.8 ) (497.6 ) Income from unconsolidated investments 12.9 31.7 48.8 59.3 Operating income 58.9 39.9 113.1 84.7 Gain on sale of real estate 5.3 21.5 77.0 76.0 Acquisition-related gain — 7.6 — 16.2 Acquisition-related expenses (1.0 ) (1.0 ) (2.3 ) (9.4 ) Interest expense-investment (37.9 ) (36.8 ) (107.8 ) (102.9 ) Interest expense-corporate (18.9 ) (14.5 ) (51.1 ) (38.8 ) Other (0.3 ) 1.9 4.6 7.6 Income before benefit from (provision for) income taxes 6.1 18.6 33.5 33.4 Benefit from (provision for) income taxes 3.7 (5.5 ) (0.9 ) (2.1 ) Net income 9.8 13.1 32.6 31.3 Net income attributable to the noncontrolling interests (18.7 ) (15.1 ) (31.3 ) (41.3 ) Preferred dividends and accretion of preferred stock issuance costs — (0.5 ) — (1.6 ) Net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ (8.9 ) $ (2.5 ) $ 1.3 $ (11.6 ) (Dollars in millions) September 30, 2017 December 31, 2016 Total Assets Investments $ 7,977.1 $ 7,375.5 Investment management and real estate services 95.2 78.1 Corporate 464.3 205.5 Total assets $ 8,536.6 $ 7,659.1

Guarantor and Non-Guarantor F36

Guarantor and Non-Guarantor Financial Statements (Tables)	9 Months Ended
	Sep. 30, 2017
Guarantor and Nonguarantor Financial Statements [Abstract]
Condensed Consolidating Balance Sheet	CONDENSED CONSOLIDATING BALANCE SHEET AS OF SEPTEMBER 30, 2017 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Assets Cash and cash equivalents $ — $ 441.7 $ 45.5 $ 25.7 $ — $ 512.9 Cash held by consolidated investments — — — 719.8 — 719.8 Accounts receivable — — 51.8 34.8 — 86.6 Loan purchases and originations — 0.3 5.8 79.3 — 85.4 Real estate and acquired in place lease values, net of accumulated depreciation and amortization — — 1,507.6 4,813.2 — 6,320.8 Unconsolidated investments — 19.5 313.4 174.9 — 507.8 Investments in and advances to consolidated subsidiaries 1,032.9 1,936.5 1,134.3 — (4,103.7 ) — Other assets — 1.5 45.3 256.5 — 303.3 Total assets $ 1,032.9 $ 2,399.5 $ 3,103.7 $ 6,104.2 $ (4,103.7 ) $ 8,536.6 Liabilities and equity Liabilities Accounts payable $ — $ 0.9 $ 1.2 $ 18.3 $ — $ 20.4 Accrued expenses and other liabilities 19.5 77.6 159.7 236.2 — 493.0 Investment debt — — 1,006.3 3,334.5 — 4,340.8 Senior notes payable — 938.1 — — — 938.1 Line of credit — 350.0 — — — 350.0 Total liabilities 19.5 1,366.6 1,167.2 3,589.0 — 6,142.3 Equity Kennedy-Wilson Holdings, Inc. shareholders' equity 1,013.4 1,032.9 1,936.5 1,134.3 (4,103.7 ) 1,013.4 Noncontrolling interests — — — 1,380.9 — 1,380.9 Total equity 1,013.4 1,032.9 1,936.5 2,515.2 (4,103.7 ) 2,394.3 Total liabilities and equity $ 1,032.9 $ 2,399.5 $ 3,103.7 $ 6,104.2 $ (4,103.7 ) $ 8,536.6 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 $ 108.8 $ — $ 260.2 Cash held by consolidated investments — — — 625.5 — 625.5 Accounts receivable — — 37.5 33.8 — 71.3 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 2,073.2 1,171.6 — (4,308.6 ) — Other assets — 2.6 39.7 202.3 — 244.6 Total assets $ 1,063.8 $ 2,200.9 $ 3,168.8 $ 5,534.2 $ (4,308.6 ) $ 7,659.1 Liabilities Accounts payable $ — $ 0.5 $ 1.6 $ 9.1 $ — 11.2 Accrued expense and other liabilities 15.8 200.0 157.2 39.1 — 412.1 Senior notes payable — 936.6 — — — 936.6 Investment debt — — 936.8 3,019.3 — 3,956.1 Total liabilities 15.8 1,137.1 1,095.6 3,067.5 — 5,316.0 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 $ 2,200.9 $ 3,168.8 $ 5,534.2 $ (4,308.6 ) $ 7,659.1
Consolidating Statement of Operations	CONSOLIDATING STATEMENT OF OPERATIONS FOR THE THREE MONTHS ENDED SEPTEMBER 30, 2017 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Revenue Rental $ — $ — $ 36.1 $ 89.4 $ — $ 125.5 Hotel — — — 37.3 — 37.3 Sale of real estate — — 2.3 87.5 — 89.8 Investment management, property services and research fees — — 13.9 2.2 — 16.1 Loan purchases, loan originations and other — — — 8.5 — 8.5 Total revenue — — 52.3 224.9 — 277.2 Operating expenses Rental operating — — 13.8 24.2 — 38.0 Hotel operating — — — 26.1 — 26.1 Cost of real estate sold — — 1.8 61.6 — 63.4 Commission and marketing — — 2.0 0.1 — 2.1 Compensation and related 9.3 12.6 11.7 1.8 — 35.4 General and administrative — 3.8 4.3 2.7 — 10.8 Depreciation and amortization — 0.4 13.0 42.0 — 55.4 Total operating expenses 9.3 16.8 46.6 158.5 — 231.2 Income from unconsolidated subsidiaries — 0.6 7.4 4.9 — 12.9 Income from consolidated subsidiaries 19.1 46.4 42.8 — (108.3 ) — Operating income (loss) 9.8 30.2 55.9 71.3 (108.3 ) 58.9 Non-operating income (expense) Acquisition-related expenses — — (0.2 ) (0.8 ) — (1.0 ) Interest expense-corporate — (18.9 ) — — — (18.9 ) Interest expense-investment — — (10.1 ) (27.8 ) — (37.9 ) Gain on sale of real estate — — — 5.3 — 5.3 Other income (loss) — 2.7 (0.1 ) (2.9 ) — (0.3 ) Income (loss) before benefit from (provision for) income taxes 9.8 14.0 45.5 45.1 (108.3 ) 6.1 Benefit from (provision for) income taxes — 5.1 0.9 (2.3 ) — 3.7 Net income (loss) 9.8 19.1 46.4 42.8 (108.3 ) 9.8 Net income attributable to the noncontrolling interests — — — (18.7 ) — (18.7 ) Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. 9.8 19.1 46.4 24.1 (108.3 ) (8.9 ) Preferred dividends and accretion of preferred stock issuance costs — — — — — — Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 9.8 $ 19.1 $ 46.4 $ 24.1 $ (108.3 ) $ (8.9 ) CONSOLIDATING STATEMENT OF OPERATIONS FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2017 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Revenue Rental $ — $ — $ 104.4 $ 269.2 $ — $ 373.6 Hotel — — — 95.8 — 95.8 Sale of real estate — — 2.3 101.1 — 103.4 Investment management, property services and research fees — — 35.0 6.3 — 41.3 Loan purchases, loan originations and other — — 0.3 14.7 — 15.0 Total revenue — — 142.0 487.1 — 629.1 Operating expenses Rental operating — — 40.6 69.9 — 110.5 Hotel operating — — — 73.3 — 73.3 Cost of real estate sold — — 1.8 71.9 — 73.7 Commission and marketing — — 5.7 0.2 — 5.9 Compensation and related 29.4 40.4 37.9 5.8 — 113.5 General and administrative — 10.3 12.1 8.3 — 30.7 Depreciation and amortization — 1.1 36.6 119.5 — 157.2 Total operating expenses 29.4 51.8 134.7 348.9 — 564.8 Income from unconsolidated subsidiaries — 2.2 17.7 28.9 — 48.8 Income from consolidated subsidiaries 62.0 154.1 109.1 — (325.2 ) — Operating income (loss) 32.6 104.5 134.1 167.1 (325.2 ) 113.1 Non-operating income (expense) Acquisition-related expenses — (0.1 ) (0.9 ) (1.3 ) — (2.3 ) Interest expense-corporate — (51.1 ) — — — (51.1 ) Interest expense-investment — — (28.0 ) (79.8 ) — (107.8 ) Gain on sale of real estate — — 46.6 30.4 — 77.0 Other income (loss) — 5.9 — (1.3 ) — 4.6 Income (loss) before benefit from (provision for) income taxes 32.6 59.2 151.8 115.1 (325.2 ) 33.5 Benefit from (provision for) income taxes — 2.8 2.3 (6.0 ) — (0.9 ) Net income (loss) 32.6 62.0 154.1 109.1 (325.2 ) 32.6 Net income attributable to the noncontrolling interests — — — (31.3 ) — (31.3 ) Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. 32.6 62.0 154.1 77.8 (325.2 ) 1.3 Preferred dividends and accretion of preferred stock issuance costs — — — — — — Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 32.6 $ 62.0 $ 154.1 $ 77.8 $ (325.2 ) $ 1.3 CONSOLIDATING STATEMENT OF OPERATIONS FOR THE THREE MONTHS ENDED SEPTEMBER 30, 2016 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Revenue Rental $ — $ — $ 30.7 $ 92.2 $ — $ 122.9 Hotel — — — 31.4 — 31.4 Sale of real estate — — 2.5 — — 2.5 Investment management, property services and research fees — — 12.1 2.0 — 14.1 Loan purchases, loan originations and other — 0.1 0.2 3.1 — 3.4 Total revenue — 0.1 45.5 128.7 — 174.3 Operating expenses Rental operating — — 11.9 22.7 — 34.6 Hotel operating — — — 23.8 — 23.8 Cost of real estate sold — — 2.4 0.1 — 2.5 Commission and marketing — — 2.4 0.1 — 2.5 Compensation and related 15.5 13.9 10.9 1.9 — 42.2 General and administrative — 3.5 4.4 2.6 — 10.5 Depreciation and amortization — 0.4 10.5 39.1 — 50.0 Total operating expenses 15.5 17.8 42.5 90.3 — 166.1 Income from unconsolidated investments — 0.7 22.8 8.2 — 31.7 Income from consolidated subsidiaries 28.6 64.5 37.1 — (130.2 ) — Operating income (loss) 13.1 47.5 62.9 46.6 (130.2 ) 39.9 Non-operating income (expense) Acquisition-related gains — — 7.6 — — 7.6 Acquisition-related expenses — — (0.9 ) (0.1 ) — (1.0 ) Interest expense-corporate — (14.5 ) — — — (14.5 ) Interest expense-investment — — (6.8 ) (30.0 ) — (36.8 ) Gain (loss) on sale of real estate — — 0.4 21.1 — 21.5 Other income (loss) — 0.3 — 1.6 — 1.9 Income (loss) before benefit from (provision for) income taxes 13.1 33.3 63.2 39.2 (130.2 ) 18.6 Benefit (provision for) from income taxes — (4.7 ) 1.3 (2.1 ) — (5.5 ) Net income (loss) 13.1 28.6 64.5 37.1 (130.2 ) 13.1 Net (income) loss attributable to the noncontrolling interests — — — (15.1 ) — (15.1 ) Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. 13.1 28.6 64.5 22.0 (130.2 ) (2.0 ) Preferred dividends and accretion of preferred stock issuance costs (0.5 ) — — — — (0.5 ) Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 12.6 $ 28.6 $ 64.5 $ 22.0 $ (130.2 ) $ (2.5 ) CONSOLIDATING STATEMENT OF OPERATIONS FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2016 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Revenue Rental $ — $ — $ 81.9 $ 281.2 $ — $ 363.1 Hotel — — — 87.3 — 87.3 Sale of real estate — — 12.2 4.5 — 16.7 Investment management, property services and research fees — — 43.2 3.5 — 46.7 Loan purchases, loan originations and other — 0.1 0.8 8.3 — 9.2 Total revenue — 0.1 138.1 384.8 — 523.0 Operating expenses Rental operating — — 34.0 64.4 — 98.4 Hotel operating — — — 71.9 — 71.9 Cost of real estate sold — — 9.6 3.5 — 13.1 Commission and marketing — — 5.6 0.4 — 6.0 Compensation and related 47.8 39.5 35.4 5.7 — 128.4 General and administrative — 10.5 12.1 9.9 — 32.5 Depreciation and amortization — 1.0 28.0 118.3 — 147.3 Total operating expenses 47.8 51.0 124.7 274.1 — 497.6 Income from unconsolidated investments — 3.8 31.3 24.2 — 59.3 Income from consolidated subsidiaries 79.1 158.3 125.4 — (362.8 ) — Operating income (loss) 31.3 111.2 170.1 134.9 (362.8 ) 84.7 Non-operating income (expense) Acquisition-related gains — — 7.6 8.6 — 16.2 Acquisition-related expenses — — (2.1 ) (7.3 ) — (9.4 ) Interest expense-corporate — (38.8 ) — — — (38.8 ) Interest expense-investment — — (17.8 ) (85.1 ) — (102.9 ) Gain (loss) on sale of real estate — — 0.8 75.2 — 76.0 Other income (loss) — 7.6 (2.6 ) 2.6 — 7.6 Income (loss) before (provision for) benefit from income taxes 31.3 80.0 156.0 128.9 (362.8 ) 33.4 (Provision for) benefit from income taxes — (0.9 ) 2.3 (3.5 ) — (2.1 ) Net income (loss) 31.3 79.1 158.3 125.4 (362.8 ) 31.3 Net income attributable to the noncontrolling interests — — — (41.3 ) — (41.3 ) Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. 31.3 79.1 158.3 84.1 (362.8 ) (10.0 ) Preferred dividends and accretion of preferred stock issuance costs (1.6 ) — — — — (1.6 ) Net income (loss) attributable to Kennedy-Wilson Holdings, Inc. common shareholders $ 29.7 $ 79.1 $ 158.3 $ 84.1 $ (362.8 ) $ (11.6 )
Consolidated Statement of Comprehensive Income	CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME FOR THE THREE MONTHS ENDED SEPTEMBER 30, 2017 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Net income $ 9.8 $ 19.1 $ 46.4 $ 42.8 $ (108.3 ) $ 9.8 Other comprehensive income, net of tax: Unrealized foreign currency translation gain 50.5 50.5 6.0 50.3 (106.8 ) 50.5 Unrealized loss on marketable securities 0.1 0.1 — — (0.1 ) 0.1 Amounts reclassified out of AOCI during the period 0.1 0.1 — 0.1 (0.2 ) 0.1 Unrealized currency derivative contracts loss (11.5 ) (11.5 ) (5.7 ) (5.8 ) 23.0 (11.5 ) Total other comprehensive (loss) income for the period $ 39.2 $ 39.2 $ 0.3 $ 44.6 $ (84.1 ) $ 39.2 Comprehensive income $ 49.0 $ 58.3 $ 46.7 $ 87.4 $ (192.4 ) $ 49.0 Comprehensive income attributable to noncontrolling interests — — — (52.9 ) — (52.9 ) Comprehensive income (loss) attributable to Kennedy-Wilson Holdings, Inc. $ 49.0 $ 58.3 $ 46.7 $ 34.5 $ (192.4 ) $ (3.9 ) CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2017 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Net income $ 32.6 $ 62.0 $ 154.1 $ 109.1 $ (325.2 ) $ 32.6 Other comprehensive income, net of tax: Unrealized foreign currency translation gain 171.3 171.3 24.4 162.6 (358.3 ) 171.3 Unrealized gain on marketable securities 0.2 0.2 — — (0.2 ) 0.2 Amounts reclassified out of AOCI during the period 0.1 0.1 — 0.1 (0.2 ) 0.1 Unrealized currency derivative contracts loss (44.3 ) (44.3 ) (15.5 ) (28.8 ) 88.6 (44.3 ) Total other comprehensive income for the period $ 127.3 $ 127.3 $ 8.9 $ 133.9 $ (270.1 ) $ 127.3 Comprehensive income $ 159.9 $ 189.3 $ 163.0 $ 243.0 $ (595.3 ) $ 159.9 Comprehensive income attributable to noncontrolling interests — — — (138.8 ) — (138.8 ) Comprehensive income (loss) attributable to Kennedy-Wilson Holdings, Inc. $ 159.9 $ 189.3 $ 163.0 $ 104.2 $ (595.3 ) $ 21.1 CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME FOR THE THREE MONTHS ENDED SEPTEMBER 30, 2016 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Net income $ 13.1 $ 28.6 $ 64.5 $ 37.1 $ (130.2 ) $ 13.1 Other comprehensive income (loss), net of tax: Unrealized foreign currency translation loss (1.1 ) (1.1 ) (2.2 ) (0.1 ) 3.4 (1.1 ) Amounts reclassified out of AOCI during the period 0.7 0.7 — 0.7 (1.4 ) 0.7 Unrealized gain on marketable securities 0.1 0.1 — — (0.1 ) 0.1 Unrealized currency derivative contracts (loss) gain (35.6 ) (35.6 ) 1.4 (37.0 ) 71.2 (35.6 ) Total other comprehensive loss for the period $ (35.9 ) $ (35.9 ) $ (0.8 ) $ (36.4 ) $ 73.1 $ (35.9 ) Comprehensive (loss) income $ (22.8 ) $ (7.3 ) $ 63.7 $ 0.7 $ (57.1 ) $ (22.8 ) Comprehensive loss attributable to noncontrolling interests — — — 15.7 — 15.7 Comprehensive (loss) income attributable to Kennedy-Wilson Holdings, Inc. $ (22.8 ) $ (7.3 ) $ 63.7 $ 16.4 $ (57.1 ) $ (7.1 ) CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2016 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Elimination Consolidated Total Net income (loss) $ 31.3 $ 79.1 $ 158.3 $ 125.4 $ (362.8 ) $ 31.3 Other comprehensive income (loss), net of tax: Unrealized foreign currency translation loss (61.7 ) (61.7 ) (8.7 ) (64.4 ) 134.8 (61.7 ) Unrealized loss on marketable securities 0.2 0.2 — — (0.2 ) 0.2 Amounts reclassified out of AOCI during the period 3.4 3.4 — 3.4 (6.8 ) 3.4 Unrealized currency derivative contracts (loss) gain (125.0 ) (125.0 ) 11.8 (136.8 ) 250.0 (125.0 ) Total other comprehensive (loss) income for the period $ (183.1 ) $ (183.1 ) $ 3.1 $ (197.8 ) $ 377.8 $ (183.1 ) Comprehensive (loss) income $ (151.8 ) $ (104.0 ) $ 161.4 $ (72.4 ) $ 15.0 $ (151.8 ) Comprehensive loss attributable to noncontrolling interests — — — 127.8 — 127.8 Comprehensive (loss) income attributable to Kennedy-Wilson Holdings, Inc. $ (151.8 ) $ (104.0 ) $ 161.4 $ 55.4 $ 15.0 $ (24.0 )
Condensed Consolidated Statement of Cash Flows	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2017 (Dollars in millions) Parent Kennedy-Wilson, Inc. Guarantor Subsidiaries Non-guarantor Subsidiaries Consolidated Total Net cash provided by (used in) operating activities $ 2.0 $ (205.6 ) $ 47.4 $ 285.8 $ 129.6 Cash flows from investing activities: Additions to loans — — — — — Collections of loans — — 6.4 10.5 16.9 Net proceeds from sale of real estate — — 110.6 151.3 261.9 Purchases of and additions to real estate — — (224.8 ) (250.2 ) (475.0 ) Proceeds from settlement of foreign derivative contracts — 3.1 — — 3.1 Purchases of foreign derivative contracts — (0.6 ) — — (0.6 ) Investment in marketable securities — — (0.6 ) — (0.6 ) Proceeds from sale of marketable securities — — 0.6 — 0.6 Distributions from unconsolidated investments — — 70.5 18.9 89.4 Contributions to unconsolidated investments — — (40.6 ) (21.7 ) (62.3 ) Additions to development project assets — — — (13.0 ) (13.0 ) Proceeds from development project assets — — — 36.9 36.9 Distributions from (investments in) consolidated subsidiaries, net 100.7 188.9 (39.1 ) (250.5 ) — Net cash provided by (used in) investing activities 100.7 191.4 (117.0 ) (317.8 ) (142.7 ) Cash flows from financing activities: Borrowings under line of credit — 400.0 — — 400.0 Repayment of line of credit — (50.0 ) — — (50.0 ) Borrowings under investment debt — — 106.0 152.3 258.3 Repayment of investment debt — — (35.8 ) (106.8 ) (142.6 ) Debt issue costs — (0.1 ) (0.5 ) (0.8 ) (1.4 ) Costs associated with KWE transaction (10.0 ) — — — (10.0 ) Repurchase and retirement of common stock (35.6 ) — — — (35.6 ) Dividends paid (57.1 ) — — — (57.1 ) Acquisition of KWE shares from noncontrolling interest holders — — — (3.3 ) (3.3 ) Contributions from noncontrolling interests, excluding KWE — — — 43.6 43.6 Distributions to noncontrolling interests — — — (93.3 ) (93.3 ) Net cash (used in) provided by financing activities (102.7 ) 349.9 69.7 (8.3 ) 308.6 Effect of currency exchange rate changes on cash and cash equivalents — — — 51.5 51.5 Net change in cash and cash equivalents — 335.7 0.1 11.2 347.0 Cash and cash equivalents, beginning of period — 106.0 45.4 734.3 885.7 Cash and cash equivalents, end of period $ — $ 441.7 $ 45.5 $ 745.5 $ 1,232.7 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS FOR THE NINE MONTHS ENDED SEPTEMBER 30, 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 ) $ (224.2 ) $ 213.2 $ 89.6 $ 78.4 Cash flows from investing activities: Additions to loans — (11.6 ) (4.5 ) — (16.1 ) Collections of loans — 6.6 5.0 133.8 145.4 Net proceeds from sale of real estate — — 11.5 254.5 266.0 Purchases of and additions to real estate — — (297.1 ) (451.3 ) (748.4 ) Additions to nonrefundable escrow deposits — — — — — Proceeds from settlement of foreign derivative contracts — 43.3 — — 43.3 Purchases of foreign derivative contracts — (5.8 ) — — (5.8 ) Investment in marketable securities — — (0.9 ) — (0.9 ) Distributions from unconsolidated investments — — 28.7 34.7 63.4 Contributions to unconsolidated investments — (1.0 ) (52.5 ) (16.8 ) (70.3 ) Distributions from (investments in) consolidated subsidiaries, net 91.1 (9.9 ) (115.1 ) 33.9 — Net cash provided by (used in) investing activities 91.1 21.6 (424.9 ) (11.2 ) (323.4 ) Cash flows from financing activities: Borrowings under senior notes payable — 250.0 — — 250.0 Borrowings under line of credit — 125.0 — — 125.0 Repayment of lines of credit — (125.0 ) — — (125.0 ) Borrowings under investment debt — — 236.7 696.7 933.4 Repayment of investment debt — — (24.6 ) (382.5 ) (407.1 ) Debt issue costs — (3.5 ) (1.2 ) (4.7 ) (9.4 ) Issuance of common stock Repurchase and retirement of common stock (43.4 ) — — — (43.4 ) Dividends paid (47.5 ) — — — (47.5 ) Acquisition of KWE shares from noncontrolling interest holders — — — (70.6 ) (70.6 ) Contributions from noncontrolling interests, excluding KWE — — — 25.3 25.3 Distributions to noncontrolling interests — — — (94.8 ) (94.8 ) Net cash (used in) provided by financing activities (90.9 ) 246.5 210.9 169.4 535.9 Effect of currency exchange rate changes on cash and cash equivalents — — — (47.3 ) (47.3 ) Net change in cash and cash equivalents — 43.9 (0.8 ) 200.5 243.6 Cash and cash equivalents, beginning of period — 80.2 37.0 614.4 731.6 Cash and cash equivalents, end of period $ — $ 124.1 $ 36.2 $ 814.9 $ 975.2

Basis of Presentation (Details)

Basis of Presentation (Details) £ in Millions, $ in Millions		Oct. 23, 2017USD ($)shares	Oct. 23, 2017GBP (£)shares	Sep. 30, 2017USD ($)property	Dec. 31, 2016USD ($)
Noncontrolling Interest [Line Items]
Assets	[1]			$ 8,536.6	$ 7,659.1
Subsequent Event [Member] | KWE [Member]
Noncontrolling Interest [Line Items]
Cash consideration to shareholders		$ 697.2	£ 528.6
Equity interest issued (in shares) | shares		37,226,695	37,226,695
Properties, Loans and Servicing Platform in Europe [Member] | Europe [Member]
Noncontrolling Interest [Line Items]
Assets				$ 1,028.2
KWE [Member]
Noncontrolling Interest [Line Items]
Ownership percentage by parent				23.80%	23.60%
KWE [Member] | Equity Securities [Member]
Noncontrolling Interest [Line Items]
Investment, gross cash basis				$ 492.6
Properties, Loans and Servicing Platform in Europe [Member]
Noncontrolling Interest [Line Items]
Number of real estate investment properties in Europe | property				17
Properties, Loans and Servicing Platform in Europe [Member] | Europe [Member]
Noncontrolling Interest [Line Items]
Ownership percentage by parent				64.00%
Equity in consolidated investments				$ 295.3
[1]	The assets and liabilities as of September 30, 2017 include $4.9 billion (including cash held by consolidated investments of $0.7 billion and real estate and acquired in place lease values, net of accumulated depreciation and amortization of $3.9 billion) and $3.0 billion (including investment debt of $2.7 billion), 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 $0.6 billion 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.

Summary of Significant Accoun38

Summary of Significant Accounting Polices and Adoption of New Accounting Pronouncements (Details) - USD ($) $ in Millions		117 Months Ended
		Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Negative fund performance that would cause reversal of performance fees		$ 32.8
Accrued performance fees		5.4		$ 10.5
Noncontrolling interests		1,380.9	$ 1,295.1
Cumulative effect of ASU 2016-09 adoption	[1]		9.3
Retained Earnings (Accumulated Deficit) [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cumulative effect of ASU 2016-09 adoption	[1]		9.3
Accounting Standards Update 2016-09 [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Increase in deferred tax asset			9.3
Accounting Standards Update 2016-09 [Member] | Retained Earnings (Accumulated Deficit) [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cumulative effect of ASU 2016-09 adoption		9.3	9.3
KWE [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Noncontrolling interests		$ 1,200	$ 1,300
[1]	See Note 2 for further discussion.

Loan Purchases and Originatio39

Loan Purchases and Originations (Details) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2017USD ($)loan	Mar. 31, 2017USD ($)	Sep. 30, 2016USD ($)	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)	Dec. 31, 2016USD ($)
Business Acquisition [Line Items]
Loan purchases and originations	$ 85.4			$ 85.4		$ 87.7
Interest income on loans	8.5		$ 3.4	15	$ 9.2
Office Property in San Diego, California [Member]
Business Acquisition [Line Items]
Proceeds from collection of loans receivable		$ 6.4
Notes Receivable [Member]
Business Acquisition [Line Items]
Loan purchases and originations	$ 85.4			$ 85.4		$ 87.7
KWE [Member]
Business Acquisition [Line Items]
Number of loans sold | loan	1
Proceeds from sale of finance receivables	$ 10.5
KWE [Member] | 6 Hotels, United Kingdom [Member]
Business Acquisition [Line Items]
Distributions from loans receivable	$ 2.5
Number of loans | loan	6

Real Estate and In-Place Leas40

Real Estate and In-Place Lease Value - Schedule of Investments in Consolidated Properties (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Real Estate [Abstract]
Land	$ 1,487.2	$ 1,383.2
Buildings	4,458.8	4,048.7
Building improvements	473	373.5
In-place lease values	426.1	383.1
Real estate, gross	6,845.1	6,188.5
Less accumulated depreciation and amortization	(524.3)	(374.3)
Real estate and acquired in place lease values, net of accumulated depreciation and amortization	$ 6,320.8	$ 5,814.2

Real Estate and In-Place Leas41

Real Estate and In-Place Lease Value - Narrative (Details) $ in Millions	9 Months Ended
	Sep. 30, 2017USD ($)
Business Acquisition [Line Items]
Guarantor obligations, maximum exposure, percentage of property level debt	1.00%
Performance Guarantee [Member] | Loans Payable [Member]
Business Acquisition [Line Items]
Guarantor obligations, maximum exposure	$ 51.7
Leases, Acquired-in-Place [Member]
Business Acquisition [Line Items]
Acquired in-place lease estimated useful life	8 years 6 months
Building and Building Improvements [Member] | Maximum [Member]
Business Acquisition [Line Items]
Buildings and building improvements estimated lives	40 years

Real Estate and In-Place Leas42

Real Estate and In-Place Lease Value - Schedule of Acquisitions (Details) $ in Millions	9 Months Ended
	Sep. 30, 2017USD ($)property
Business Acquisition [Line Items]
Land	$ 65.1
Building	228.2
Acquired in place lease values	22.7
Investment debt	170.2
NCI	8.7
KWH Shareholders' Equity	138.4
Retail Centers and Commercial Property Acquired in the Western U.S. [Member]
Business Acquisition [Line Items]
Land	54.1
Building	228.2
Acquired in place lease values	22.7
Investment debt	170.2
NCI	3.8
KWH Shareholders' Equity	$ 131
Retail Centers and Commercial Property Acquired in the Western U.S. [Member] | Retail [Member]
Business Acquisition [Line Items]
Number of properties acquired | property	2
Retail Centers and Commercial Property Acquired in the Western U.S. [Member] | Multifamily [Member]
Business Acquisition [Line Items]
Number of properties acquired | property	3
Retail Centers and Commercial Property Acquired in the Western U.S. [Member] | Commercial [Member]
Business Acquisition [Line Items]
Number of properties acquired | property	1
Retail Centers and Commercial Property Acquired in the Western U.S. [Member] | Development Project [Member]
Business Acquisition [Line Items]
Number of properties acquired | property	1
Development Project Acquired in Ireland [Member]
Business Acquisition [Line Items]
Land	$ 11
Building	0
Acquired in place lease values	0
Investment debt	0
NCI	4.9
KWH Shareholders' Equity	$ 7.4

Real Estate and In-Place Leas43

Real Estate and In-Place Lease Value - Schedule of Gains on Real Estate (Details) $ in Millions	9 Months Ended
	Sep. 30, 2017USD ($)property	Sep. 30, 2016USD ($)
Gain on sale of real estate
Consolidated	$ 106.7	$ 79.6
NCI	35
Net of NCI	71.7
KW [Member]
Gain on sale of real estate
Consolidated	85.7
NCI	19
Net of NCI	66.7
KWE [Member]
Gain on sale of real estate
Consolidated	21
NCI	16
Net of NCI	$ 5
Multifamily [Member] | KW [Member] | Western U.S. [Member]
Gain on sale of real estate
Number of real estate properties sold | property	2
Retail Site [Member] | KW [Member] | Western U.S. [Member]
Gain on sale of real estate
Number of real estate properties sold | property	1
Commercial Development Property [Member] | KW [Member] | Ireland [Member]
Gain on sale of real estate
Number of real estate properties sold | property	1
Residential Property [Member] | KW [Member] | United Kingdom [Member]
Gain on sale of real estate
Number of real estate properties sold | property	1
Residential Property [Member] | KWE [Member] | Spain [Member]
Gain on sale of real estate
Number of real estate properties sold | property	1
Commercial [Member] | KWE [Member] | United Kingdom [Member]
Gain on sale of real estate
Number of real estate properties sold | property	16
Condominium Unit [Member] | KWE [Member] | Spain [Member]
Gain on sale of real estate
Number of real estate properties sold | property	2

Real Estate and In-Place Leas44

Real Estate and In-Place Lease Value - Schedule of Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Real Estate [Abstract]
Pro forma revenues	$ 279.3	$ 181	$ 639.4	$ 543.1
Pro forma net income	10.8	17.5	37.7	44.8
Pro forma net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	$ (8.1)	$ 1.6	$ 5.6	$ 1.2
Pro forma net (loss) income per share:
Basic (in dollars per share)	$ (0.07)	$ 0.02	$ 0.05	$ 0.01
Diluted (in dollars per share)	$ (0.07)	$ 0.02	$ 0.05	$ 0.01

Unconsolidated Investments - Na

Unconsolidated Investments - Narrative (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)	Sep. 30, 2017USD ($)joint_venturepropertylimited_partnership	Sep. 30, 2016USD ($)	Dec. 31, 2016USD ($)
Schedule of Equity Method Investments [Line Items]
Equity method investment distribution received			$ 67.6
Payments to acquire new equity method investments			11.5
Contributions to existing joint ventures			62.3
Proceeds from equity method investments			$ 157
Number of joint ventures with unfulfilled capital commitments | joint_venture			4
Multifamily [Member]
Schedule of Equity Method Investments [Line Items]
Number of properties acquired | property			4
Number of real estate properties sold | property			2
Equity method investment distribution received			$ 22.3
Commercial [Member]
Schedule of Equity Method Investments [Line Items]
Number of real estate properties sold | property			2
Equity method investment distribution received			$ 27.2
Equity Method Investments [Member]
Schedule of Equity Method Investments [Line Items]
Unfunded capital commitments	$ 63.8		$ 63.8
Vintage Housing Holdings [Member]
Schedule of Equity Method Investments [Line Items]
Number of syndicated limited partnerships (over) | limited_partnership			30
Equity method investments	106		$ 106		$ 84.2
Gain on fair value through equity income	3.7	$ 7.2	16.1	$ 20.5
Equity method investment distribution received	1.9	$ 1.6	5.1	$ 4.7
Kennedy Wilson Real Estate Fund VI, LP [Member] | Equity Method Investments [Member]
Schedule of Equity Method Investments [Line Items]
Unfunded capital commitments	$ 50		$ 50
Minimum [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	5.00%		5.00%
Maximum [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	50.00%		50.00%

Unconsolidated Investments - Sc

Unconsolidated Investments - Schedule of Joint Ventures (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	$ 507.8	$ 555.6
Western U.S. [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	477.2	519.8
United Kingdom [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	10.8	13.8
Spain [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	17.3	15.9
Japan [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	2.5	6.1
Multifamily [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	222	199
Multifamily [Member] | Western U.S. [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	219.5	192.9
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
Commercial [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	72.4	79.1
Commercial [Member] | Western U.S. [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	61.6	65.3
Commercial [Member] | United Kingdom [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	10.8	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
Residential and Other [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	213.4	277.5
Residential and Other [Member] | Western U.S. [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	196.1	261.6
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	17.3	15.9
Residential and Other [Member] | Japan [Member]
Schedule of Equity Method Investments [Line Items]
Investments in joint ventures	$ 0	$ 0

Unconsolidated Investments - Ca

Unconsolidated Investments - Cash Distributions by Investment Type and Location (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Schedule of Equity Method Investments [Line Items]
Operating	$ 67.6
Investing	89.4	$ 63.4
Multifamily [Member]
Schedule of Equity Method Investments [Line Items]
Operating	22.3
Investing	16.3
Commercial [Member]
Schedule of Equity Method Investments [Line Items]
Operating	27.2
Investing	16.1
Residential and Other [Member]
Schedule of Equity Method Investments [Line Items]
Operating	18.1
Investing	57
Western U.S. [Member]
Schedule of Equity Method Investments [Line Items]
Operating	64.8
Investing	85.7
Western U.S. [Member] | Multifamily [Member]
Schedule of Equity Method Investments [Line Items]
Operating	22.2
Investing	12.6
Western U.S. [Member] | Commercial [Member]
Schedule of Equity Method Investments [Line Items]
Operating	24.9
Investing	16.1
Western U.S. [Member] | Residential and Other [Member]
Schedule of Equity Method Investments [Line Items]
Operating	17.7
Investing	57
Japan [Member]
Schedule of Equity Method Investments [Line Items]
Operating	0.1
Investing	3.7
Japan [Member] | Multifamily [Member]
Schedule of Equity Method Investments [Line Items]
Operating	0.1
Investing	3.7
Japan [Member] | Commercial [Member]
Schedule of Equity Method Investments [Line Items]
Operating	0
Investing	0
Japan [Member] | Residential and Other [Member]
Schedule of Equity Method Investments [Line Items]
Operating	0
Investing	0
United Kingdom [Member]
Schedule of Equity Method Investments [Line Items]
Operating	2.3
Investing	0
United Kingdom [Member] | Multifamily [Member]
Schedule of Equity Method Investments [Line Items]
Operating	0
Investing	0
United Kingdom [Member] | Commercial [Member]
Schedule of Equity Method Investments [Line Items]
Operating	2.3
Investing	0
United Kingdom [Member] | Residential and Other [Member]
Schedule of Equity Method Investments [Line Items]
Operating	0
Investing	0
Spain [Member]
Schedule of Equity Method Investments [Line Items]
Operating	0.4
Investing	0
Spain [Member] | Multifamily [Member]
Schedule of Equity Method Investments [Line Items]
Operating	0
Investing	0
Spain [Member] | Commercial [Member]
Schedule of Equity Method Investments [Line Items]
Operating	0
Investing	0
Spain [Member] | Residential and Other [Member]
Schedule of Equity Method Investments [Line Items]
Operating	0.4
Investing	$ 0

Fair Value Measurements and t48

Fair Value Measurements and the Fair Value Option - Schedule of Fair Value Measurements (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unconsolidated investments	$ 342.9	$ 329.4
Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unconsolidated investments	342.9	329.4
Marketable securities	7.8	7.5
Total	239.7	289.7
Recurring [Member] | Foreign Exchange Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Currency derivative contracts	(111)	(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	7.8	7.5
Total	7.8	7.5
Recurring [Member] | Level 1 [Member] | Foreign Exchange Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
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
Total	(111)	(47.2)
Recurring [Member] | Level 2 [Member] | Foreign Exchange Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Currency derivative contracts	(111)	(47.2)
Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unconsolidated investments	342.9	329.4
Marketable securities	0	0
Total	342.9	329.4
Recurring [Member] | Level 3 [Member] | Foreign Exchange Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Currency derivative contracts	$ 0	$ 0

Fair Value Measurements and t49

Fair Value Measurements and the Fair Value Option - Unconsolidated Investments, Narrative (Details) (Details) $ in Millions	9 Months Ended
	Sep. 30, 2017USD ($)investment	Dec. 31, 2016USD ($)
Equity Method Investments [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair value option	$ 287.2	$ 282.4
Funds	55.7	$ 47
Unfunded capital commitments	63.8
Recurring [Member] | Level 3 [Member] | Real Estate Funds [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
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 with fair value option election | investment	17

Fair Value Measurements and t50

Fair Value Measurements and the Fair Value Option - Unconsolidated Investments (Details) - Equity Method Investments [Member] - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
FV Option	$ 287.2	$ 282.4
Funds	55.7	47
Total	$ 342.9	$ 329.4

Fair Value Measurements and t51

Fair Value Measurements and the Fair Value Option - Schedule of Changes in Level 3 Investments (Details) - Equity Method Investments [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 330.8	$ 236.6	$ 329.4	$ 223.8
Unrealized and realized gains	11.2	10.1	38.9	36.2
Unrealized and realized losses	0	(0.6)	(0.8)	(0.1)
Contributions	22.4	10.2	47.5	30.3
Distributions	(21.4)	(29.2)	(95.9)	(64)
Other	(0.1)	(0.1)	23.8	0.8
Ending balance	$ 342.9	$ 227	$ 342.9	$ 227

Fair Value Measurements and t52

Fair Value Measurements and the Fair Value Option - Schedule of Significant Inputs (Details)	9 Months Ended
	Sep. 30, 2017
Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Entity credit risk percentage	1.55%
Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Entity credit risk percentage	3.46%
Office [Member] | Minimum [Member] | Income and Market Approach Technique [Member] | Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Capitalization Rates	4.50%
Discount Rates	6.75%
Office [Member] | Maximum [Member] | Income and Market Approach Technique [Member] | Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Capitalization Rates	8.60%
Discount Rates	9.75%
Retail [Member] | Minimum [Member] | Income and Market Approach Technique [Member] | Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Capitalization Rates	5.50%
Discount Rates	7.25%
Retail [Member] | Maximum [Member] | Income and Market Approach Technique [Member] | Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Capitalization Rates	9.00%
Discount Rates	11.00%
Multifamily [Member] | Minimum [Member] | Income and Market Approach Technique [Member] | Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Capitalization Rates	4.75%
Discount Rates	8.00%
Multifamily [Member] | Maximum [Member] | Income and Market Approach Technique [Member] | Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Capitalization Rates	7.75%
Discount Rates	9.75%
Land and condominium units [Member] | Minimum [Member] | Income and Market Approach Technique [Member] | Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount Rates	8.00%
Land and condominium units [Member] | Maximum [Member] | Income and Market Approach Technique [Member] | Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount Rates	15.00%

Fair Value Measurements and t53

Fair Value Measurements and the Fair Value Option - Marketable Securities, Narrative (Details) shares in Millions	Sep. 30, 2017shares
KWE [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Shares in KWE (in shares)	30

Fair Value Measurements and t54

Fair Value Measurements and the Fair Value Option - Derivatives Financial Instruments (Details) € in Millions, ¥ in Millions, £ in Millions, $ in Millions	9 Months Ended
	Sep. 30, 2017USD ($)	Sep. 30, 2017JPY (¥)	Sep. 30, 2017GBP (£)	Sep. 30, 2017EUR (€)	Dec. 31, 2016USD ($)
Derivative [Line Items]
Hedge Asset	$ 3.6				$ 20.2
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Level 2 [Member]
Derivative [Line Items]
Hedge Asset	3.6
Hedge Liability	(114.6)
Change in Unrealized Gains (Losses)	(57.8)
Realized Gains (Losses)	(15.3)
Cash Received (Paid)
Total	2.5
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Level 2 [Member] | Noncontrolling Interest [Member]
Derivative [Line Items]
Hedge Asset	0
Hedge Liability	66.3
Change in Unrealized Gains (Losses)	24.2
Realized Gains (Losses)	0
Cash Received (Paid)
Total	0
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Level 2 [Member] | Net of NCI [Member]
Derivative [Line Items]
Hedge Asset	3.6
Hedge Liability	(48.3)
Change in Unrealized Gains (Losses)	(33.6)
Realized Gains (Losses)	(15.3)
Cash Received (Paid)
Total	2.5
Designated as Hedging Instrument [Member] | Derivatives Outstanding [Member] | Level 2 [Member]
Derivative [Line Items]
Hedge Asset	3.6
Hedge Liability	(114.6)
Change in Unrealized Gains (Losses)	(57.9)
Realized Gains (Losses)	(15.5)
Cash Received (Paid)
Cash Paid	(0.6)
Designated as Hedging Instrument [Member] | Foreign Exchange Contract, One [Member]
Derivative [Line Items]
Notional Amount | €				€ 145
Designated as Hedging Instrument [Member] | Foreign Exchange Contract, One [Member] | Level 2 [Member]
Derivative [Line Items]
Hedge Asset	0.3
Hedge Liability	(6.1)
Change in Unrealized Gains (Losses)	(9.5)
Realized Gains (Losses)	0
Cash Received (Paid)
Cash Paid	0
Designated as Hedging Instrument [Member] | Foreign Exchange Contract, Two [Member] | KWE [Member]
Derivative [Line Items]
Notional Amount | €				€ 360
Designated as Hedging Instrument [Member] | Foreign Exchange Contract, Two [Member] | Level 2 [Member] | KWE [Member]
Derivative [Line Items]
Hedge Asset	0
Hedge Liability	(87)
Change in Unrealized Gains (Losses)	(13.9)
Realized Gains (Losses)	0
Cash Received (Paid)
Cash Paid	0
Designated as Hedging Instrument [Member] | Foreign Exchange Contract, Three [Member] | Level 2 [Member] | KWE [Member]
Derivative [Line Items]
Hedge Asset	0
Hedge Liability	0
Change in Unrealized Gains (Losses)	(17.9)
Realized Gains (Losses)	0
Cash Received (Paid)
Cash Paid	0
Designated as Hedging Instrument [Member] | Foreign Exchange Contract, Four [Member]
Derivative [Line Items]
Notional Amount | £			£ 381
Designated as Hedging Instrument [Member] | Foreign Exchange Contract, Four [Member] | Level 2 [Member]
Derivative [Line Items]
Hedge Asset	3.3
Hedge Liability	(5.9)
Change in Unrealized Gains (Losses)	(16.5)
Realized Gains (Losses)	0
Cash Received (Paid)
Cash Paid	(0.4)
Designated as Hedging Instrument [Member] | Foreign Exchange Contract, Five [Member]
Derivative [Line Items]
Notional Amount | £			£ 259.7
Designated as Hedging Instrument [Member] | Foreign Exchange Contract, Five [Member] | Level 2 [Member]
Derivative [Line Items]
Hedge Asset	0
Hedge Liability	(15.5)
Change in Unrealized Gains (Losses)	0
Realized Gains (Losses)	(15.5)
Cash Received (Paid)
Cash Paid	0
Designated as Hedging Instrument [Member] | Foreign Exchange Contract, Six [Member]
Derivative [Line Items]
Notional Amount | ¥		¥ 115.1
Designated as Hedging Instrument [Member] | Foreign Exchange Contract, Six [Member] | Level 2 [Member]
Derivative [Line Items]
Hedge Asset	0
Hedge Liability	(0.1)
Change in Unrealized Gains (Losses)	(0.1)
Realized Gains (Losses)	0
Cash Received (Paid)
Cash Paid	(0.2)
Designated as Hedging Instrument [Member] | Derivative Settled [Member] | Level 2 [Member]
Derivative [Line Items]
Hedge Asset	0
Hedge Liability	0
Change in Unrealized Gains (Losses)	0.1
Realized Gains (Losses)	0.2
Cash Received (Paid)
Cash Received	3.1
Designated as Hedging Instrument [Member] | Foreign Exchange Contract, Seven [Member] | Level 2 [Member]
Derivative [Line Items]
Hedge Asset	0
Hedge Liability	0
Change in Unrealized Gains (Losses)	(0.1)
Realized Gains (Losses)	0
Cash Received (Paid)
Cash Received	0.1
Designated as Hedging Instrument [Member] | Foreign Exchange Contract, Eight [Member] | Level 2 [Member]
Derivative [Line Items]
Hedge Asset	0
Hedge Liability	0
Change in Unrealized Gains (Losses)	0.2
Realized Gains (Losses)	0.2
Cash Received (Paid)
Cash Received	$ 3

Fair Value Measurements and t55

Fair Value Measurements and the Fair Value Option - Fair Value of Financial Instruments, Narrative (Details) - USD ($) $ in Billions	Sep. 30, 2017	Dec. 31, 2016
Reported Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt fair value	$ 5.6	$ 4.9
Level 2 [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt fair value	$ 5.7	$ 5

Other Assets - Schedule of Othe

Other Assets - Schedule of Other Assets (Details) - USD ($) shares in Millions, $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Other Assets [Abstract]
Development project asset	$ 46.4	$ 0
Deferred tax asset, net	31.3	23.2
VAT receivable	30.5	28.4
Goodwill	23.9	23.9
Office furniture and equipment net of accumulated depreciation of $35.1 and $24.4 at September 30, 2017 and December 31, 2016, respectively	23.6	25.4
Prepaid expenses	15.2	10.2
Other, net of accumulated amortization of $4.9 and $3.7 at September 30, 2017 and December 31, 2016, respectively	12.3	12.5
Acquisition costs	10	0
Marketable securities	7.8	7.5
Leasing commissions, net of accumulated amortization of $2.7 and $1.7 at September 30, 2017 and December 31, 2016, respectively	6.5	7.4
Hedge assets	3.6	20.2
Deposits	3.3	1.8
Other Assets	303.3	244.6
Accumulated amortization, other	4.9	3.7
Accumulated amortization, leasing commissions	$ 2.7	1.7
KWE [Member]
Other Assets [Abstract]
Shares in KWE (in shares)	30
Furniture and Fixtures [Member]
Other Assets [Abstract]
Straight line rent	$ 21.6	11.7
Accumulated amortization, office furniture and equipment	35.1	24.4
Above Market Leases [Member]
Other Assets [Abstract]
Above-market leases, net of accumulated amortization of $42.0 and $28.1 at September 30, 2017 and December 31, 2016, respectively	67.3	72.4
Accumulated amortization, above-market leases	$ 42	$ 28.1

Other Assets - Additional Infor

Other Assets - Additional Information (Details) ft² in Thousands, $ in Millions	May 12, 2017ft²	Sep. 30, 2017USD ($)	Jun. 30, 2017USD ($)	Sep. 30, 2016USD ($)	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)
Real Estate [Line Items]
Sale of real estate		$ 89.8		$ 2.5	$ 103.4	$ 16.7
Cost of real estate sold		$ 63.4		$ 2.5	$ 73.7	$ 13.1
Office Building [Member] | Ireland [Member]
Real Estate [Line Items]
Square feet of property sold | ft²	130
Sale of real estate			$ 83.5
Cost of real estate sold			$ 57.6

Investment Debt - Mortgage Loan

Investment Debt - Mortgage Loans (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
KWE [Member]
Debt Instrument [Line Items]
Ownership percentage by parent	23.80%	23.60%
KWE [Member]
Debt Instrument [Line Items]
Unamortized premium (discount)	$ (4.3)	$ (4.1)
Investment Debt [Member]
Debt Instrument [Line Items]
Investment debt (excluding loan fees)	4,368.1	3,981
Unamortized loan fees	(27.3)	(24.9)
Total debt	4,340.8	3,956.1
Investment Debt [Member] | KWE [Member]
Debt Instrument [Line Items]
Investment debt (excluding loan fees)	2,223.6	2,082.9
Unamortized loan fees	(12.2)	(13.3)
Total debt	2,211.4	2,069.6
Secured Investment Debt [Member]
Debt Instrument [Line Items]
Investment debt (excluding loan fees)	3,052.5	2,788.6
Unamortized premium (discount)	(0.4)	0.9
Secured Investment Debt [Member] | KWE [Member]
Debt Instrument [Line Items]
Investment debt (excluding loan fees)	908	890.5
Secured Investment Debt [Member] | Mortgage Loans Secured by Multi-Family Properties [Member] | Western U.S. [Member]
Debt Instrument [Line Items]
Investment debt (excluding loan fees)	1,202.1	1,180.8
Secured Investment Debt [Member] | Mortgage Loans Secured by Multi-Family Properties [Member] | Ireland [Member]
Debt Instrument [Line Items]
Investment debt (excluding loan fees)	147.4	131.3
Secured Investment Debt [Member] | Mortgage Loans Secured by Commercial Properties [Member] | Western U.S. [Member]
Debt Instrument [Line Items]
Investment debt (excluding loan fees)	385.9	290.2
Secured Investment Debt [Member] | Mortgage Loans Secured by Commercial Properties [Member] | Ireland [Member]
Debt Instrument [Line Items]
Investment debt (excluding loan fees)	446.5	331.5
Secured Investment Debt [Member] | Mortgage Loans Secured by Commercial Properties [Member] | Ireland [Member] | KWE [Member]
Debt Instrument [Line Items]
Investment debt (excluding loan fees)	285.8	254.7
Secured Investment Debt [Member] | Mortgage Loans Secured by Commercial Properties [Member] | Spain [Member]
Debt Instrument [Line Items]
Investment debt (excluding loan fees)	94.2	84.4
Secured Investment Debt [Member] | Mortgage Loans Secured by Commercial Properties [Member] | Spain [Member] | KWE [Member]
Debt Instrument [Line Items]
Investment debt (excluding loan fees)	94.2	84.4
Secured Investment Debt [Member] | Mortgage Loans Secured by Commercial Properties [Member] | United Kingdom [Member]
Debt Instrument [Line Items]
Investment debt (excluding loan fees)	599.1	616.9
Secured Investment Debt [Member] | Mortgage Loans Secured by Commercial Properties [Member] | United Kingdom [Member] | KWE [Member]
Debt Instrument [Line Items]
Investment debt (excluding loan fees)	528	551.4
Secured Investment Debt [Member] | Mortgage Loans Secured by Residential, Hotel and Other [Member] | Western U.S. [Member]
Debt Instrument [Line Items]
Investment debt (excluding loan fees)	49.3	49.8
Secured Investment Debt [Member] | Mortgage Loans Secured by Residential and Other [Member] | Ireland [Member]
Debt Instrument [Line Items]
Investment debt (excluding loan fees)	42.9	28
Secured Investment Debt [Member] | Mortgage Loans Secured by Hotel [Member] | Ireland [Member]
Debt Instrument [Line Items]
Investment debt (excluding loan fees)	85.1	75.7
Unsecured Debt [Member] | Mortgage Loans, Unsecured [Member] | United Kingdom [Member]
Debt Instrument [Line Items]
Investment debt (excluding loan fees)	1,315.6	1,192.4
Unsecured Debt [Member] | Mortgage Loans, Unsecured [Member] | United Kingdom [Member] | KWE [Member]
Debt Instrument [Line Items]
Investment debt (excluding loan fees)	$ 1,315.6	$ 1,192.4

Investment Debt - Narrative (De

Investment Debt - Narrative (Details) € in Millions, $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Aug. 31, 2014USD ($)	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)	Sep. 30, 2017USD ($)investment	Sep. 30, 2016USD ($)	Jun. 30, 2016USD ($)	Jun. 30, 2016EUR (€)	Sep. 30, 2017GBP (£)	Dec. 31, 2016	Sep. 30, 2016GBP (£)	Dec. 31, 2015USD ($)	Dec. 31, 2015GBP (£)	Jun. 30, 2015USD ($)	Jun. 30, 2015GBP (£)	Aug. 31, 2014GBP (£)
Debt Instrument [Line Items]
Unrealized foreign currency translation gain (loss) | $		$ 50.5	$ (1.1)	$ 171.3	$ (61.7)
Number of investments partially financed with mortgages | investment				1
Number of acquisitions partially financed with mortgages | investment				6
Number of properties that acquired supplemental financing | investment				1
Euro Member Countries, Euro [Member]
Debt Instrument [Line Items]
Unrealized foreign currency translation gain (loss) | $				$ (17.9)
Secured Investment Debt [Member]
Debt Instrument [Line Items]
Weighted-average interest rate of investment debt		3.39%		3.39%				3.39%	3.33%
Percent of property level debt with fixed rate		68.00%		68.00%				68.00%	75.00%
Percent of property level debt with floating rate and interest caps		15.00%		15.00%				15.00%	15.00%
Percent of property level debt with floating rate, without interest caps		17.00%		17.00%				17.00%	10.00%
Secured Investment Debt [Member] | KWE [Member] | KWE Facility [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt instrument term	3 years
Maximum borrowing capacity	$ 301.5														£ 225,000,000
Remaining borrowing capacity		$ 301.5		$ 301.5				£ 225,000,000
Secured Investment Debt [Member] | KWE [Member] | United Kingdom [Member] | Mortgage Loans, Unsecured [Member]
Debt Instrument [Line Items]
Debt face value			$ 268		$ 268					£ 200,000,000			$ 401.9	£ 300,000,000
Stated interest rate			3.95%		3.95%					3.95%			3.95%	3.95%
Effective interest rate			3.35%		3.35%					3.35%
Percentage of proceeds converted to Euros with swaps			50.00%
Maximum percentage of total assets		60.00%		60.00%				60.00%
Maximum ratio of consolidated secured indebtedness to total assets		50.00%		50.00%				50.00%
Interest coverage ratio		1.50		1.50				1.50
Maximum ratio of unencumbered assets to unsecured indebtedness		125.00%		125.00%				125.00%
Secured Investment Debt [Member] | KWE [Member] | United Kingdom [Member] | Euro Medium Term Note [Member]
Debt Instrument [Line Items]
Debt face value											$ 2,700	£ 2,000,000,000
Proceeds from issuance of debt						$ 649.8	€ 550
Long-term debt | $		$ 645.9		$ 645.9
Annual fixed coupon rate			3.25%		3.25%					3.25%

Investment Debt - Schedule of M

Investment Debt - Schedule of Maturities (Details) - Investment Debt [Member] - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
2,017	$ 61.6
2,018	173.5
2,019	605.5
2,020	269.5
2,021	103.8
Thereafter	3,154.6
Long-term debt, gross	4,368.5
Debt discount	(0.4)
Unamortized loan fees	(27.3)	$ (24.9)
Total debt	$ 4,340.8	$ 3,956.1

Senior Notes - Schedule of Seni

Senior Notes - Schedule of Senior Notes (Details) - Senior Notes [Member] - USD ($)	Sep. 30, 2017	Dec. 31, 2016	Aug. 31, 2016
Debt Instrument [Line Items]
Face Value	$ 955,000,000	$ 955,000,000
Unamortized Net Premium/(Discount)	(2,000,000)	(2,200,000)
Carrying Value	953,000,000	952,800,000
Unamortized loan fees	(14,900,000)	(16,200,000)
Total debt	$ 938,100,000	936,600,000
7.75% Senior Notes Due 2042 [Member]
Debt Instrument [Line Items]
Interest Rate	7.75%
Face Value	$ 55,000,000	55,000,000
Unamortized Net Premium/(Discount)	0	0
Carrying Value	$ 55,000,000	55,000,000
5.875% Senior Notes Dues April 2024 [Member]
Debt Instrument [Line Items]
Interest Rate	5.875%		5.875%
Face Value	$ 900,000,000	900,000,000
Unamortized Net Premium/(Discount)	(2,000,000)	(2,200,000)
Carrying Value	$ 898,000,000	$ 897,800,000

Senior Notes - Narrative (Detai

Senior Notes - Narrative (Details) - Senior Notes [Member]	Dec. 01, 2017	Sep. 30, 2017USD ($)	Dec. 31, 2016USD ($)	Aug. 31, 2016USD ($)
Debt Instrument [Line Items]
Debt face value		$ 955,000,000	$ 955,000,000
Balance sheet leverage ratio		1.50
Maximum [Member]
Debt Instrument [Line Items]
Maximum balance sheet leverage ratio		1.29
5.875% Senior Notes Due April 2024 Issued August 2016 [Member]
Debt Instrument [Line Items]
Debt face value				$ 250,000,000
5.875% Senior Notes Dues April 2024 [Member]
Debt Instrument [Line Items]
Debt face value		$ 900,000,000	900,000,000
Stated interest rate		5.875%		5.875%
Public offering price, percentage of principal amount				100.00%
5.875% Senior Notes Due April 2024 Issued Under Indenture [Member]
Debt Instrument [Line Items]
Debt face value				$ 650,000,000
7.75% Senior Notes Due 2042 [Member]
Debt Instrument [Line Items]
Debt face value		$ 55,000,000	$ 55,000,000
Stated interest rate		7.75%
7.75% Senior Notes Due 2042 [Member] | Subsequent Event [Member] | Forecast [Member]
Debt Instrument [Line Items]
Percentage of principal amount redeemed	100.00%

Borrowings Under Lines of Cre63

Borrowings Under Lines of Credit (Details) - USD ($)	Oct. 03, 2017	Dec. 10, 2015	Sep. 30, 2017	Sep. 30, 2016	Oct. 20, 2017	Dec. 31, 2016
Line of Credit Facility [Line Items]
Borrowings under line of credit			$ 400,000,000	$ 125,000,000
Repayments of lines of credit			50,000,000	$ 125,000,000
Outstanding unsecured facility line of credit			350,000,000			$ 0
A&R Facility [Member] | Subsequent Event [Member]
Line of Credit Facility [Line Items]
Credit facility maximum and term loan face amount	$ 700,000,000				$ 700,000,000
Unsecured Debt [Member] | Revolving Credit Facility [Member] | KW Revolving Facility [Member]
Line of Credit Facility [Line Items]
Borrowings under line of credit			400,000,000
Repayments of lines of credit			50,000,000
Maximum borrowing capacity			475,000,000
Outstanding unsecured facility line of credit			350,000,000
Remaining borrowing capacity			$ 125,000,000			$ 475,000,000
Unsecured Debt [Member] | Revolving Credit Facility [Member] | KW Revolving Facility [Member] | Subsequent Event [Member]
Line of Credit Facility [Line Items]
Repayments of lines of credit	$ 150,000,000
Line of Credit [Member] | A&R Facility [Member] | Subsequent Event [Member]
Line of Credit Facility [Line Items]
Period of extension	1 year
Line of Credit [Member] | Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Fixed charge coverage ratio			2.7
Covenant, tangible net worth			$ 1,323,100,000
Secured recourse leverage ratio			1.10%
Liquidity covenant			$ 1,077,800,000
Adjusted secured leverage ratio			40.10%
Consolidated leverage ratio			60.80%
Recourse leverage ratio			1.03
Line of Credit [Member] | Revolving Credit Facility [Member] | KW Revolving Facility [Member]
Line of Credit Facility [Line Items]
Period of extension		1 year
Maximum consolidated leverage ratio		65.00%
Rolling average basis period		12 months
Covenant, percent of new equity offerings		50.00%
Maximum secured recourse leverage multiplier		1.5
Line of Credit [Member] | Revolving Credit Facility [Member] | KW Revolving Facility [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Fixed charge coverage ratio		1.60
Covenant, tangible net worth		$ 920,660,504.65
Liquidity covenant		$ 250,000,000
Line of Credit [Member] | Revolving Credit Facility [Member] | KW Revolving Facility [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Secured recourse leverage ratio		3.50%
Liquidity covenant		$ 138,187,197
Adjusted secured leverage ratio		55.00%
Line of Credit [Member] | Revolving Credit Facility [Member] | KW Revolving Facility [Member] | LIBOR [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate		2.50%
Line of Credit [Member] | Revolving Credit Facility [Member] | KW Revolving Facility [Member] | LIBOR [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate		3.00%
Line of Credit [Member] | Revolving Credit Facility [Member] | A&R Facility [Member] | Subsequent Event [Member]
Line of Credit Facility [Line Items]
Borrowings under line of credit	$ 200,000,000
Maximum borrowing capacity	500,000,000
Remaining borrowing capacity	$ 300,000,000
Line of Credit [Member] | Revolving Credit Facility [Member] | A&R Facility [Member] | LIBOR [Member] | Minimum [Member] | Subsequent Event [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.75%
Line of Credit [Member] | Revolving Credit Facility [Member] | A&R Facility [Member] | LIBOR [Member] | Maximum [Member] | Subsequent Event [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.75%

Equity - Common Stock (Details)

Equity - Common Stock (Details) - USD ($)	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Feb. 25, 2016
Equity [Abstract]
Authorized amount of stock to repurchase			$ 100,000,000
Stock repurchased during period, value	$ 1,600,000	$ 28,700,000
Common Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Shares retired due to common stock repurchase program (in shares)	77,155	1,453,837

Equity - Dividend Distributions

Equity - Dividend Distributions (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Declared
Preferred Stock	$ 0	$ 1.6
Common stock	58.6	48.1
Total	58.6	49.7
Paid
Preferred Stock	0	1.6
Common Stock	57.1	45.9
Total	57.1	47.5
Series B Preferred Stock [Member]
Declared
Preferred Stock	0	1.6
Paid
Preferred Stock	$ 0	$ 1.6

Equity - Share-Based Compensati

Equity - Share-Based Compensation (Details) - Restricted Stock [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 9.3	$ 15.6	$ 29.4	$ 47.8
Shares paid for tax withholding for share based compensation (in shares)			1,460,251	693,942
Payments related to tax withholding for share-based compensation			$ 34	$ 14.7

Equity - Accumulated Other Comp

Equity - Accumulated Other Comprehensive Income (Details) $ in Millions	9 Months Ended
	Sep. 30, 2017USD ($)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance beginning of period	$ 2,343.1
Unrealized gains (losses), arising during the period	140.2
Amounts reclassified out of AOCI during the period	0.1
Noncontrolling interest	(107.5)
Deferred taxes on unrealized (losses) gains, arising during the period	(13)
Balance end of period	2,394.3
Accumulated Other Comprehensive Income Loss [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance beginning of period	(71.2)
Balance end of period	(51.4)
Foreign Currency Translation [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance beginning of period	(98.6)
Unrealized gains (losses), arising during the period	197.7
Amounts reclassified out of AOCI during the period	0.1
Noncontrolling interest	(131.7)
Deferred taxes on unrealized (losses) gains, arising during the period	(26.4)
Balance end of period	(58.9)
Currency Derivative Contracts [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance beginning of period	27.5
Unrealized gains (losses), arising during the period	(57.8)
Amounts reclassified out of AOCI during the period	0
Noncontrolling interest	24.2
Deferred taxes on unrealized (losses) gains, arising during the period	13.5
Balance end of period	7.4
Marketable Securities [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance beginning of period	(0.1)
Unrealized gains (losses), arising during the period	0.3
Amounts reclassified out of AOCI during the period	0
Noncontrolling interest	0
Deferred taxes on unrealized (losses) gains, arising during the period	(0.1)
Balance end of period	$ 0.1

Equity - Noncontrolling Interes

Equity - Noncontrolling Interests (Details) £ in Millions, $ in Millions	Oct. 23, 2017USD ($)shares	Oct. 23, 2017GBP (£)shares	Sep. 30, 2017USD ($)	Dec. 31, 2016USD ($)
Noncontrolling Interest [Line Items]
Noncontrolling interests			$ 1,380.9	$ 1,295.1
Subsequent Event [Member] | KWE [Member]
Noncontrolling Interest [Line Items]
Cash consideration to shareholders	$ 697.2	£ 528.6
Equity interest issued (in shares) | shares	37,226,695	37,226,695
KWE [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interests			$ 1,200	$ 1,300
Ownership percentage by parent			23.80%	23.60%
Noncontrolling Interest [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interests			$ 1,400	$ 1,300

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Earnings Per Share [Abstract]
Net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	$ (8.9)	$ (2.5)	$ 1.3	$ (11.6)
Dividends allocated to participating securities	(0.2)	(0.4)	(0.7)	(1.3)
Net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders, net of allocation to participating securities	(9.1)	(2.9)	0.6	(12.9)
Dividends declared on common shares	(19.3)	(15.6)	(57.9)	(46.7)
Undistributed losses attributable to Kennedy-Wilson Holdings, Inc. common shareholders, net of allocation to participating securities	$ (28.4)	$ (18.5)	$ (57.3)	$ (59.6)
Distributed earnings per share (in dollars per share)	$ 0.17	$ 0.14	$ 0.52	$ 0.42
Undistributed losses per share (in dollars per share)	(0.25)	(0.17)	(0.51)	(0.54)
(Loss) income per basic (in dollars per share)	(0.08)	(0.03)	0.01	(0.12)
(Loss) income per diluted (in dollars per share)	$ (0.08)	$ (0.03)	$ 0.01	$ (0.12)
Weighted average shares outstanding for basic (in shares)	111,966,716	108,634,228	111,955,924	108,966,540
Weighted average shares outstanding for diluted (in shares)	111,966,716	108,634,228	111,955,924	108,966,540
Dividends declared per common share (in dollars per share)	$ 0.17	$ 0.14	$ 0.51	$ 0.42
Potentially dilutive securities (in shares)	1,145,032	3,782,564	1,028,565	3,493,709

Segment Information (Details)

Segment Information (Details) ft² in Millions, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2017USD ($)ft²office	Sep. 30, 2016USD ($)	Sep. 30, 2017USD ($)ft²officesegmentline_of_business	Sep. 30, 2016USD ($)	Dec. 31, 2016USD ($)
Segment Reporting Information [Line Items]
Number of core operating segments | segment				2
Number of main lines of businesses | line_of_business				5
Segment Reporting Information, Profit (Loss) [Abstract]
Rental		$ 125.5	$ 122.9	$ 373.6	$ 363.1
Hotel		37.3	31.4	95.8	87.3
Sale of real estate		89.8	2.5	103.4	16.7
Investment management, property services and research fees		16.1	14.1	41.3	46.7
Loan purchases, loan originations and other		8.5	3.4	15	9.2
Total revenue		277.2	174.3	629.1	523
Operating expenses		(175.8)	(116.1)	(407.6)	(350.3)
Depreciation and amortization		(55.4)	(50)	(157.2)	(147.3)
Total operating expenses		(231.2)	(166.1)	(564.8)	(497.6)
Income from unconsolidated investments		12.9	31.7	48.8	59.3
Operating income		58.9	39.9	113.1	84.7
Gain on sale of real estate		5.3	21.5	77	76
Acquisition-related gains		0	7.6	0	16.2
Acquisition-related expenses		(1)	(1)	(2.3)	(9.4)
Interest expense-investments		(37.9)	(36.8)	(107.8)	(102.9)
Interest expense-corporate		(18.9)	(14.5)	(51.1)	(38.8)
Other		(0.3)	1.9	4.6	7.6
Income before benefit from (provision for) income taxes		6.1	18.6	33.5	33.4
Benefit from (provision for) income taxes		3.7	(5.5)	(0.9)	(2.1)
Net income		9.8	13.1	32.6	31.3
Net income attributable to the noncontrolling interests		(18.7)	(15.1)	(31.3)	(41.3)
Preferred dividends and accretion of preferred stock issuance costs		0	(0.5)	0	(1.6)
Net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders		(8.9)	(2.5)	1.3	(11.6)
Property service and research fees		7.5	5.4	17.5	22.9
Segment Reporting Information, Assets [Abstract]
Total assets	[1]	8,536.6		8,536.6		$ 7,659.1
Corporate, Non-Segment [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Operating expenses		(15)	(21.5)	(46.8)	(65)
Operating income		(15)	(21.5)	(46.8)	(65)
Interest expense-corporate		(18.9)	(14.5)	(51.1)	(38.8)
Other		2.6	0	7	0
Income before benefit from (provision for) income taxes		(31.3)	(36)	(90.9)	(103.8)
Benefit from (provision for) income taxes		5.1	(7.1)	2.8	0.5
Net income		(26.2)	(43.1)	(88.1)	(103.3)
Preferred dividends and accretion of preferred stock issuance costs		0	(0.5)	0	(1.6)
Net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders		(26.2)	(43.6)	(88.1)	(104.9)
Segment Reporting Information, Assets [Abstract]
Total assets		$ 464.3		$ 464.3		205.5
Investments [Member]
Segment Reporting Information [Line Items]
Average ownership interest in investments		39.00%		39.00%
Segment Reporting Information, Profit (Loss) [Abstract]
Rental		$ 125.5	122.9	$ 373.6	363.1
Hotel		37.3	31.4	95.8	87.3
Sale of real estate				103.4	16.7
Loan purchases, loan originations and other		8.5	3.4	15	9.2
Total revenue		261.1	160.2	587.8	476.3
Investments [Member] | Operating Segments [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Operating expenses		(147.1)	(80.4)	(320.8)	(241.7)
Depreciation and amortization		(55.4)	(50)	(157.2)	(147.3)
Income from unconsolidated investments		12.6	31.3	46.9	56.6
Operating income		71.2	61.1	156.7	143.9
Gain on sale of real estate		5.3	21.5	77	76
Acquisition-related gains		0	7.6	0	16.2
Acquisition-related expenses		(1)	(1)	(2.3)	(9.4)
Interest expense-investments		(37.9)	(36.8)	(107.8)	(102.9)
Other		(2.9)	1.9	(2.4)	7.6
Income before benefit from (provision for) income taxes		34.7	54.3	121.2	131.4
Benefit from (provision for) income taxes		(1.4)	1.6	(3.7)	(2.6)
Net income		33.3	55.9	117.5	128.8
Net income attributable to the noncontrolling interests		(18.7)	(15.1)	(31.3)	(41.3)
Net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders		14.6	40.8	86.2	87.5
Segment Reporting Information, Assets [Abstract]
Total assets		$ 7,977.1		$ 7,977.1		7,375.5
IMRES [Member]
Segment Reporting Information [Line Items]
Area of real estate property | ft²		59		59
Number of offices | office		27		27
Segment Reporting Information, Profit (Loss) [Abstract]
Property service and research fees		$ 7.5	5.4	$ 17.5	22.9
IMRES [Member] | Operating Segments [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Investment management, property services and research fees		16.1	14.1	41.3	46.7
Total revenue		16.1	14.1	41.3	46.7
Operating expenses		(13.7)	(14.2)	(40.1)	(43.6)
Income from unconsolidated investments		0.3	0.4	2	2.7
Operating income		2.7	0.3	3.2	5.8
Net income attributable to the noncontrolling interests		0	0	0	0
Net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders		2.7	$ 0.3	3.2	$ 5.8
Segment Reporting Information, Assets [Abstract]
Total assets		$ 95.2		$ 95.2		$ 78.1
[1]	The assets and liabilities as of September 30, 2017 include $4.9 billion (including cash held by consolidated investments of $0.7 billion and real estate and acquired in place lease values, net of accumulated depreciation and amortization of $3.9 billion) and $3.0 billion (including investment debt of $2.7 billion), 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 $0.6 billion 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.

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Income Taxes [Line Items]
Income before income taxes		$ 6.1	$ 18.6	$ 33.5	$ 33.4
Income tax expense		(3.7)	$ 5.5	0.9	$ 2.1
Cumulative effect of ASU 2016-09 adoption	[1]					$ 9.3
Tax benefit from share-based compensation cost				4.1
US domestic taxes would be incurred if repatriated to the United States		3.1		3.1
Ireland and Jersey [Member]
Income Taxes [Line Items]
Undistributed earnings of foreign subsidiaries		12.6		$ 12.6
U.S. Federal [Member]
Income Taxes [Line Items]
Federal statutory rate				35.00%
Retained Earnings (Accumulated Deficit) [Member]
Income Taxes [Line Items]
Cumulative effect of ASU 2016-09 adoption	[1]					9.3
Accounting Standards Update 2016-09 [Member] | Retained Earnings (Accumulated Deficit) [Member]
Income Taxes [Line Items]
Cumulative effect of ASU 2016-09 adoption		$ 9.3		$ 9.3		$ 9.3
[1]	See Note 2 for further discussion.

Guarantor and Non-Guarantor F72

Guarantor and Non-Guarantor Financial Statements - Condensed Consolidating Balance Sheet (Details) - USD ($) $ in Millions		Sep. 30, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents		$ 512.9	$ 260.2
Cash held by consolidated investments		719.8	625.5
Accounts receivable		86.6	71.3
Loan purchases and originations		85.4	87.7
Real estate and acquired in place lease values, net of accumulated depreciation and amortization		6,320.8	5,814.2
Unconsolidated investments		507.8	555.6
Investments in and advances to consolidated subsidiaries		0	0
Other assets		303.3	244.6
Total assets	[1]	8,536.6	7,659.1
Liabilities
Accounts payable		20.4	11.2
Accrued expenses and other liabilities		493	412.1
Total liabilities	[1]	6,142.3	5,316
Equity
Kennedy-Wilson Holdings, Inc. shareholders' equity		1,013.4	1,048
Noncontrolling interests		1,380.9	1,295.1
Total equity		2,394.3	2,343.1
Total liabilities and equity		8,536.6	7,659.1
Investment Debt [Member]
Liabilities
Long-term debt		4,340.8	3,956.1
Senior Notes [Member]
Liabilities
Long-term debt		938.1	936.6
Line of Credit [Member]
Liabilities
Long-term debt		350
Reportable Legal Entities [Member] | Parent [Member]
Assets
Cash and cash equivalents		0	0
Cash held by consolidated investments		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		1,032.9	1,063.8
Other assets		0	0
Total assets		1,032.9	1,063.8
Liabilities
Accounts payable		0	0
Accrued expenses and other liabilities		19.5	15.8
Total liabilities		19.5	15.8
Equity
Kennedy-Wilson Holdings, Inc. shareholders' equity		1,013.4	1,048
Noncontrolling interests		0	0
Total equity		1,013.4	1,048
Total liabilities and equity		1,032.9	1,063.8
Reportable Legal Entities [Member] | Kennedy-Wilson, Inc. [Member]
Assets
Cash and cash equivalents		441.7	106
Cash held by consolidated investments		0	0
Accounts receivable		0	0
Loan purchases and originations		0.3	0.3
Real estate and acquired in place lease values, net of accumulated depreciation and amortization		0	0
Unconsolidated investments		19.5	18.8
Investments in and advances to consolidated subsidiaries		1,936.5	2,073.2
Other assets		1.5	2.6
Total assets		2,399.5	2,200.9
Liabilities
Accounts payable		0.9	0.5
Accrued expenses and other liabilities		77.6	200
Total liabilities		1,366.6	1,137.1
Equity
Kennedy-Wilson Holdings, Inc. shareholders' equity		1,032.9	1,063.8
Noncontrolling interests		0	0
Total equity		1,032.9	1,063.8
Total liabilities and equity		2,399.5	2,200.9
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents		45.5	45.4
Cash held by consolidated investments		0	0
Accounts receivable		51.8	37.5
Loan purchases and originations		5.8	12.1
Real estate and acquired in place lease values, net of accumulated depreciation and amortization		1,507.6	1,482.5
Unconsolidated investments		313.4	380
Investments in and advances to consolidated subsidiaries		1,134.3	1,171.6
Other assets		45.3	39.7
Total assets		3,103.7	3,168.8
Liabilities
Accounts payable		1.2	1.6
Accrued expenses and other liabilities		159.7	157.2
Total liabilities		1,167.2	1,095.6
Equity
Kennedy-Wilson Holdings, Inc. shareholders' equity		1,936.5	2,073.2
Noncontrolling interests		0	0
Total equity		1,936.5	2,073.2
Total liabilities and equity		3,103.7	3,168.8
Reportable Legal Entities [Member] | Non-guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents		25.7	108.8
Cash held by consolidated investments		719.8	625.5
Accounts receivable		34.8	33.8
Loan purchases and originations		79.3	75.3
Real estate and acquired in place lease values, net of accumulated depreciation and amortization		4,813.2	4,331.7
Unconsolidated investments		174.9	156.8
Investments in and advances to consolidated subsidiaries		0	0
Other assets		256.5	202.3
Total assets		6,104.2	5,534.2
Liabilities
Accounts payable		18.3	9.1
Accrued expenses and other liabilities		236.2	39.1
Total liabilities		3,589	3,067.5
Equity
Kennedy-Wilson Holdings, Inc. shareholders' equity		1,134.3	1,171.6
Noncontrolling interests		1,380.9	1,295.1
Total equity		2,515.2	2,466.7
Total liabilities and equity		6,104.2	5,534.2
Reportable Legal Entities [Member] | Investment Debt [Member] | Parent [Member]
Liabilities
Long-term debt		0	0
Reportable Legal Entities [Member] | Investment Debt [Member] | Kennedy-Wilson, Inc. [Member]
Liabilities
Long-term debt		0	0
Reportable Legal Entities [Member] | Investment Debt [Member] | Guarantor Subsidiaries [Member]
Liabilities
Long-term debt		1,006.3	936.8
Reportable Legal Entities [Member] | Investment Debt [Member] | Non-guarantor Subsidiaries [Member]
Liabilities
Long-term debt		3,334.5	3,019.3
Reportable Legal Entities [Member] | Senior Notes [Member] | Parent [Member]
Liabilities
Long-term debt		0	0
Reportable Legal Entities [Member] | Senior Notes [Member] | Kennedy-Wilson, Inc. [Member]
Liabilities
Long-term debt		938.1	936.6
Reportable Legal Entities [Member] | Senior Notes [Member] | Guarantor Subsidiaries [Member]
Liabilities
Long-term debt		0	0
Reportable Legal Entities [Member] | Senior Notes [Member] | Non-guarantor Subsidiaries [Member]
Liabilities
Long-term debt		0	0
Reportable Legal Entities [Member] | Line of Credit [Member] | Parent [Member]
Liabilities
Long-term debt		0
Reportable Legal Entities [Member] | Line of Credit [Member] | Kennedy-Wilson, Inc. [Member]
Liabilities
Long-term debt		350
Reportable Legal Entities [Member] | Line of Credit [Member] | Guarantor Subsidiaries [Member]
Liabilities
Long-term debt		0
Reportable Legal Entities [Member] | Line of Credit [Member] | Non-guarantor Subsidiaries [Member]
Liabilities
Long-term debt		0
Elimination [Member]
Assets
Cash and cash equivalents		0	0
Cash held by consolidated investments		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		(4,103.7)	(4,308.6)
Other assets		0	0
Total assets		(4,103.7)	(4,308.6)
Liabilities
Accounts payable		0	0
Accrued expenses and other liabilities		0	0
Total liabilities		0	0
Equity
Kennedy-Wilson Holdings, Inc. shareholders' equity		(4,103.7)	(4,308.6)
Noncontrolling interests		0	0
Total equity		(4,103.7)	(4,308.6)
Total liabilities and equity		(4,103.7)	(4,308.6)
Elimination [Member] | Investment Debt [Member]
Liabilities
Long-term debt		0	0
Elimination [Member] | Senior Notes [Member]
Liabilities
Long-term debt		0	$ 0
Elimination [Member] | Line of Credit [Member]
Liabilities
Long-term debt		$ 0
[1]	The assets and liabilities as of September 30, 2017 include $4.9 billion (including cash held by consolidated investments of $0.7 billion and real estate and acquired in place lease values, net of accumulated depreciation and amortization of $3.9 billion) and $3.0 billion (including investment debt of $2.7 billion), 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 $0.6 billion 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 F73

Guarantor and Non-Guarantor Financial Statements - Consolidating Statement of Operations (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenue
Rental	$ 125.5	$ 122.9	$ 373.6	$ 363.1
Hotel	37.3	31.4	95.8	87.3
Sale of real estate	89.8	2.5	103.4	16.7
Investment management, property services and research fees	16.1	14.1	41.3	46.7
Loan purchases, loan originations and other	8.5	3.4	15	9.2
Total revenue	277.2	174.3	629.1	523
Operating expenses
Rental operating	38	34.6	110.5	98.4
Hotel operating	26.1	23.8	73.3	71.9
Cost of real estate sold	63.4	2.5	73.7	13.1
Commission and marketing	2.1	2.5	5.9	6
Compensation and related	35.4	42.2	113.5	128.4
General and administrative	10.8	10.5	30.7	32.5
Depreciation and amortization	55.4	50	157.2	147.3
Total operating expenses	231.2	166.1	564.8	497.6
Income from unconsolidated investments	12.9	31.7	48.8	59.3
Income from consolidated subsidiaries	0	0	0	0
Operating income	58.9	39.9	113.1	84.7
Non-operating income (expense)
Acquisition-related gains	0	7.6	0	16.2
Acquisition-related expenses	(1)	(1)	(2.3)	(9.4)
Interest expense-corporate	(18.9)	(14.5)	(51.1)	(38.8)
Interest expense-investment	(37.9)	(36.8)	(107.8)	(102.9)
Gain on sale of real estate	5.3	21.5	77	76
Other income (loss)	(0.3)	1.9	4.6	7.6
Income before benefit from (provision for) income taxes	6.1	18.6	33.5	33.4
Benefit from (provision for) income taxes	3.7	(5.5)	(0.9)	(2.1)
Net income	9.8	13.1	32.6	31.3
Net income attributable to the noncontrolling interests	(18.7)	(15.1)	(31.3)	(41.3)
Net income (loss) attributable to Kennedy-Wilson Holdings, Inc.	(8.9)	(2)	1.3	(10)
Preferred dividends and accretion of preferred stock issuance costs	0	(0.5)	0	(1.6)
Net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	(8.9)	(2.5)	1.3	(11.6)
Reportable Legal Entities [Member] | Parent [Member]
Revenue
Rental	0	0	0	0
Hotel	0	0	0	0
Sale of real estate	0	0	0	0
Investment management, property services and research fees	0	0	0	0
Loan purchases, loan originations and other	0	0	0	0
Total revenue	0	0	0	0
Operating expenses
Rental operating	0	0	0	0
Hotel operating	0	0	0	0
Cost of real estate sold	0	0	0	0
Commission and marketing	0	0	0	0
Compensation and related	9.3	15.5	29.4	47.8
General and administrative	0	0	0	0
Depreciation and amortization	0	0	0	0
Total operating expenses	9.3	15.5	29.4	47.8
Income from unconsolidated investments	0	0	0	0
Income from consolidated subsidiaries	19.1	28.6	62	79.1
Operating income	9.8	13.1	32.6	31.3
Non-operating income (expense)
Acquisition-related gains		0		0
Acquisition-related expenses	0	0	0	0
Interest expense-corporate	0	0	0	0
Interest expense-investment	0	0	0	0
Gain on sale of real estate	0	0	0	0
Other income (loss)	0	0	0	0
Income before benefit from (provision for) income taxes	9.8	13.1	32.6	31.3
Benefit from (provision for) income taxes	0	0	0	0
Net income	9.8	13.1	32.6	31.3
Net income attributable to the noncontrolling interests	0	0	0	0
Net income (loss) attributable to Kennedy-Wilson Holdings, Inc.	9.8	13.1	32.6	31.3
Preferred dividends and accretion of preferred stock issuance costs	0	(0.5)	0	(1.6)
Net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	9.8	12.6	32.6	29.7
Reportable Legal Entities [Member] | Kennedy-Wilson, Inc. [Member]
Revenue
Rental	0	0	0	0
Hotel	0	0	0	0
Sale of real estate	0	0	0	0
Investment management, property services and research fees	0	0	0	0
Loan purchases, loan originations and other	0	0.1	0	0.1
Total revenue	0	0.1	0	0.1
Operating expenses
Rental operating	0	0	0	0
Hotel operating	0	0	0	0
Cost of real estate sold	0	0	0	0
Commission and marketing	0	0	0	0
Compensation and related	12.6	13.9	40.4	39.5
General and administrative	3.8	3.5	10.3	10.5
Depreciation and amortization	0.4	0.4	1.1	1
Total operating expenses	16.8	17.8	51.8	51
Income from unconsolidated investments	0.6	0.7	2.2	3.8
Income from consolidated subsidiaries	46.4	64.5	154.1	158.3
Operating income	30.2	47.5	104.5	111.2
Non-operating income (expense)
Acquisition-related gains		0		0
Acquisition-related expenses	0	0	(0.1)	0
Interest expense-corporate	(18.9)	(14.5)	(51.1)	(38.8)
Interest expense-investment	0	0	0	0
Gain on sale of real estate	0	0	0	0
Other income (loss)	2.7	0.3	5.9	7.6
Income before benefit from (provision for) income taxes	14	33.3	59.2	80
Benefit from (provision for) income taxes	5.1	(4.7)	2.8	(0.9)
Net income	19.1	28.6	62	79.1
Net income attributable to the noncontrolling interests	0	0	0	0
Net income (loss) attributable to Kennedy-Wilson Holdings, Inc.	19.1	28.6	62	79.1
Preferred dividends and accretion of preferred stock issuance costs	0	0	0	0
Net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	19.1	28.6	62	79.1
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Revenue
Rental	36.1	30.7	104.4	81.9
Hotel	0	0	0	0
Sale of real estate	2.3	2.5	2.3	12.2
Investment management, property services and research fees	13.9	12.1	35	43.2
Loan purchases, loan originations and other	0	0.2	0.3	0.8
Total revenue	52.3	45.5	142	138.1
Operating expenses
Rental operating	13.8	11.9	40.6	34
Hotel operating	0	0	0	0
Cost of real estate sold	1.8	2.4	1.8	9.6
Commission and marketing	2	2.4	5.7	5.6
Compensation and related	11.7	10.9	37.9	35.4
General and administrative	4.3	4.4	12.1	12.1
Depreciation and amortization	13	10.5	36.6	28
Total operating expenses	46.6	42.5	134.7	124.7
Income from unconsolidated investments	7.4	22.8	17.7	31.3
Income from consolidated subsidiaries	42.8	37.1	109.1	125.4
Operating income	55.9	62.9	134.1	170.1
Non-operating income (expense)
Acquisition-related gains		7.6		7.6
Acquisition-related expenses	(0.2)	(0.9)	(0.9)	(2.1)
Interest expense-corporate	0	0	0	0
Interest expense-investment	(10.1)	(6.8)	(28)	(17.8)
Gain on sale of real estate	0	0.4	46.6	0.8
Other income (loss)	(0.1)	0	0	(2.6)
Income before benefit from (provision for) income taxes	45.5	63.2	151.8	156
Benefit from (provision for) income taxes	0.9	1.3	2.3	2.3
Net income	46.4	64.5	154.1	158.3
Net income attributable to the noncontrolling interests	0	0	0	0
Net income (loss) attributable to Kennedy-Wilson Holdings, Inc.	46.4	64.5	154.1	158.3
Preferred dividends and accretion of preferred stock issuance costs	0	0	0	0
Net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	46.4	64.5	154.1	158.3
Reportable Legal Entities [Member] | Non-guarantor Subsidiaries [Member]
Revenue
Rental	89.4	92.2	269.2	281.2
Hotel	37.3	31.4	95.8	87.3
Sale of real estate	87.5	0	101.1	4.5
Investment management, property services and research fees	2.2	2	6.3	3.5
Loan purchases, loan originations and other	8.5	3.1	14.7	8.3
Total revenue	224.9	128.7	487.1	384.8
Operating expenses
Rental operating	24.2	22.7	69.9	64.4
Hotel operating	26.1	23.8	73.3	71.9
Cost of real estate sold	61.6	0.1	71.9	3.5
Commission and marketing	0.1	0.1	0.2	0.4
Compensation and related	1.8	1.9	5.8	5.7
General and administrative	2.7	2.6	8.3	9.9
Depreciation and amortization	42	39.1	119.5	118.3
Total operating expenses	158.5	90.3	348.9	274.1
Income from unconsolidated investments	4.9	8.2	28.9	24.2
Income from consolidated subsidiaries	0	0	0	0
Operating income	71.3	46.6	167.1	134.9
Non-operating income (expense)
Acquisition-related gains		0		8.6
Acquisition-related expenses	(0.8)	(0.1)	(1.3)	(7.3)
Interest expense-corporate	0	0	0	0
Interest expense-investment	(27.8)	(30)	(79.8)	(85.1)
Gain on sale of real estate	5.3	21.1	30.4	75.2
Other income (loss)	(2.9)	1.6	(1.3)	2.6
Income before benefit from (provision for) income taxes	45.1	39.2	115.1	128.9
Benefit from (provision for) income taxes	(2.3)	(2.1)	(6)	(3.5)
Net income	42.8	37.1	109.1	125.4
Net income attributable to the noncontrolling interests	(18.7)	(15.1)	(31.3)	(41.3)
Net income (loss) attributable to Kennedy-Wilson Holdings, Inc.	24.1	22	77.8	84.1
Preferred dividends and accretion of preferred stock issuance costs	0	0	0	0
Net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	24.1	22	77.8	84.1
Elimination [Member]
Revenue
Rental	0	0	0	0
Hotel	0	0	0	0
Sale of real estate	0	0	0	0
Investment management, property services and research fees	0	0	0	0
Loan purchases, loan originations and other	0	0	0	0
Total revenue	0	0	0	0
Operating expenses
Rental operating	0	0	0	0
Hotel operating	0	0	0	0
Cost of real estate sold	0	0	0	0
Commission and marketing	0	0	0	0
Compensation and related	0	0	0	0
General and administrative	0	0	0	0
Depreciation and amortization	0	0	0	0
Total operating expenses	0	0	0	0
Income from unconsolidated investments	0	0	0	0
Income from consolidated subsidiaries	(108.3)	(130.2)	(325.2)	(362.8)
Operating income	(108.3)	(130.2)	(325.2)	(362.8)
Non-operating income (expense)
Acquisition-related gains		0		0
Acquisition-related expenses	0	0	0	0
Interest expense-corporate	0	0	0	0
Interest expense-investment	0	0	0	0
Gain on sale of real estate	0	0	0	0
Other income (loss)	0	0	0	0
Income before benefit from (provision for) income taxes	(108.3)	(130.2)	(325.2)	(362.8)
Benefit from (provision for) income taxes	0	0	0	0
Net income	(108.3)	(130.2)	(325.2)	(362.8)
Net income attributable to the noncontrolling interests	0	0	0	0
Net income (loss) attributable to Kennedy-Wilson Holdings, Inc.	(108.3)	(130.2)	(325.2)	(362.8)
Preferred dividends and accretion of preferred stock issuance costs	0	0	0	0
Net (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	$ (108.3)	$ (130.2)	$ (325.2)	$ (362.8)

Guarantor and Non-Guarantor F74

Guarantor and Non-Guarantor Financial Statements - Consolidated Statement of Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Condensed Financial Statements, Captions [Line Items]
Net income	$ 9.8	$ 13.1	$ 32.6	$ 31.3
Other comprehensive income (loss), net of tax:
Unrealized foreign currency translation (loss) gain	50.5	(1.1)	171.3	(61.7)
Unrealized gain on marketable securities	0.1	0.1	0.2	0.2
Amounts reclassified out of AOCI during the period	0.1	0.7	0.1	3.4
Unrealized currency derivative contracts loss	(11.5)	(35.6)	(44.3)	(125)
Total other comprehensive income (loss) for the period	39.2	(35.9)	127.3	(183.1)
Comprehensive income (loss)	49	(22.8)	159.9	(151.8)
Comprehensive income attributable to noncontrolling interests	(52.9)	15.7	(138.8)	127.8
Comprehensive (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	(3.9)	(7.1)	21.1	(24)
Reportable Legal Entities [Member] | Parent [Member]
Condensed Financial Statements, Captions [Line Items]
Net income	9.8	13.1	32.6	31.3
Other comprehensive income (loss), net of tax:
Unrealized foreign currency translation (loss) gain	50.5	(1.1)	171.3	(61.7)
Unrealized gain on marketable securities	0.1	0.1	0.2	0.2
Amounts reclassified out of AOCI during the period	0.1	0.7	0.1	3.4
Unrealized currency derivative contracts loss	(11.5)	(35.6)	(44.3)	(125)
Total other comprehensive income (loss) for the period	39.2	(35.9)	127.3	(183.1)
Comprehensive income (loss)	49	(22.8)	159.9	(151.8)
Comprehensive income attributable to noncontrolling interests	0	0	0	0
Comprehensive (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	49	(22.8)	159.9	(151.8)
Reportable Legal Entities [Member] | Kennedy-Wilson, Inc. [Member]
Condensed Financial Statements, Captions [Line Items]
Net income	19.1	28.6	62	79.1
Other comprehensive income (loss), net of tax:
Unrealized foreign currency translation (loss) gain	50.5	(1.1)	171.3	(61.7)
Unrealized gain on marketable securities	0.1	0.1	0.2	0.2
Amounts reclassified out of AOCI during the period	0.1	0.7	0.1	3.4
Unrealized currency derivative contracts loss	(11.5)	(35.6)	(44.3)	(125)
Total other comprehensive income (loss) for the period	39.2	(35.9)	127.3	(183.1)
Comprehensive income (loss)	58.3	(7.3)	189.3	(104)
Comprehensive income attributable to noncontrolling interests	0	0	0	0
Comprehensive (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	58.3	(7.3)	189.3	(104)
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net income	46.4	64.5	154.1	158.3
Other comprehensive income (loss), net of tax:
Unrealized foreign currency translation (loss) gain	6	(2.2)	24.4	(8.7)
Unrealized gain on marketable securities	0	0	0	0
Amounts reclassified out of AOCI during the period	0	0	0	0
Unrealized currency derivative contracts loss	(5.7)	1.4	(15.5)	11.8
Total other comprehensive income (loss) for the period	0.3	(0.8)	8.9	3.1
Comprehensive income (loss)	46.7	63.7	163	161.4
Comprehensive income attributable to noncontrolling interests	0	0	0	0
Comprehensive (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	46.7	63.7	163	161.4
Reportable Legal Entities [Member] | Non-guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net income	42.8	37.1	109.1	125.4
Other comprehensive income (loss), net of tax:
Unrealized foreign currency translation (loss) gain	50.3	(0.1)	162.6	(64.4)
Unrealized gain on marketable securities	0	0	0	0
Amounts reclassified out of AOCI during the period	0.1	0.7	0.1	3.4
Unrealized currency derivative contracts loss	(5.8)	(37)	(28.8)	(136.8)
Total other comprehensive income (loss) for the period	44.6	(36.4)	133.9	(197.8)
Comprehensive income (loss)	87.4	0.7	243	(72.4)
Comprehensive income attributable to noncontrolling interests	(52.9)	15.7	(138.8)	127.8
Comprehensive (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	34.5	16.4	104.2	55.4
Elimination [Member]
Condensed Financial Statements, Captions [Line Items]
Net income	(108.3)	(130.2)	(325.2)	(362.8)
Other comprehensive income (loss), net of tax:
Unrealized foreign currency translation (loss) gain	(106.8)	3.4	(358.3)	134.8
Unrealized gain on marketable securities	(0.1)	(0.1)	(0.2)	(0.2)
Amounts reclassified out of AOCI during the period	(0.2)	(1.4)	(0.2)	(6.8)
Unrealized currency derivative contracts loss	23	71.2	88.6	250
Total other comprehensive income (loss) for the period	(84.1)	73.1	(270.1)	377.8
Comprehensive income (loss)	(192.4)	(57.1)	(595.3)	15
Comprehensive income attributable to noncontrolling interests	0	0	0	0
Comprehensive (loss) income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	$ (192.4)	$ (57.1)	$ (595.3)	$ 15

Guarantor and Non-Guarantor F75

Guarantor and Non-Guarantor Financial Statements - Condensed Consolidating Statement of Cash Flows (Details) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities		$ 129.6	$ 78.4
Cash flows from investing activities:
Additions to loans		0	(16.1)
Collections of loans		16.9	145.4
Net proceeds from sale of real estate		261.9	266
Purchases of and additions to real estate		(475)	(748.4)
Additions to nonrefundable escrow deposits			0
Proceeds from settlement of foreign derivative contracts		3.1	43.3
Purchases of foreign derivative contracts		(0.6)	(5.8)
Investment in marketable securities		(0.6)	(0.9)
Proceeds from sale of marketable securities		0.6	0
Distributions from unconsolidated investments		89.4	63.4
Contributions to unconsolidated investments		(62.3)	(70.3)
Additions to development project asset		(13)	0
Proceeds from development project asset		36.9	0
Distributions from (investments in) consolidated subsidiaries, net		0	0
Net cash used in investing activities		(142.7)	(323.4)
Cash flows from financing activities:
Borrowings under senior notes payable		0	250
Borrowings under line of credit		400	125
Repayment of lines of credit		(50)	(125)
Borrowings under investment debt		258.3	933.4
Repayment of investment debt		(142.6)	(407.1)
Debt issue costs		(1.4)	(9.4)
Costs associated with KWE transaction		(10)	0
Repurchase and retirement of common stock		(35.6)	(43.4)
Dividends paid		(57.1)	(47.5)
Acquisition of KWE shares from noncontrolling interest holders		(3.3)	(70.6)
Contributions from noncontrolling interests, excluding KWE		43.6	25.3
Distributions to noncontrolling interests		(93.3)	(94.8)
Net cash provided by financing activities		308.6	535.9
Effect of currency exchange rate changes on cash and cash equivalents		51.5	(47.3)
Net change in cash and cash equivalents	[1]	347	243.6
Cash and cash equivalents, beginning of period		885.7	731.6
Cash and cash equivalents, end of period		1,232.7	975.2
Parent [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities		2	(0.2)
Cash flows from investing activities:
Additions to loans		0	0
Collections of loans		0	0
Net proceeds from sale of real estate		0	0
Purchases of and additions to real estate		0	0
Additions to nonrefundable escrow deposits			0
Proceeds from settlement of foreign derivative contracts		0	0
Purchases of foreign derivative contracts		0	0
Investment in marketable securities		0	0
Proceeds from sale of marketable securities		0
Distributions from unconsolidated investments		0	0
Contributions to unconsolidated investments		0	0
Additions to development project asset		0
Proceeds from development project asset		0
Distributions from (investments in) consolidated subsidiaries, net		100.7	91.1
Net cash used in investing activities		100.7	91.1
Cash flows from financing activities:
Borrowings under senior notes payable			0
Borrowings under line of credit		0	0
Repayment of lines of credit		0	0
Borrowings under investment debt		0	0
Repayment of investment debt		0	0
Debt issue costs		0	0
Costs associated with KWE transaction		(10)
Repurchase and retirement of common stock		(35.6)	(43.4)
Dividends paid		(57.1)	(47.5)
Acquisition of KWE shares from noncontrolling interest holders		0	0
Contributions from noncontrolling interests, excluding KWE		0	0
Distributions to noncontrolling interests		0	0
Net cash provided by financing activities		(102.7)	(90.9)
Effect of currency exchange rate changes on cash and cash equivalents		0	0
Net change in cash and cash equivalents		0	0
Cash and cash equivalents, beginning of period		0	0
Cash and cash equivalents, end of period		0	0
Kennedy-Wilson, Inc. [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities		(205.6)	(224.2)
Cash flows from investing activities:
Additions to loans		0	(11.6)
Collections of loans		0	6.6
Net proceeds from sale of real estate		0	0
Purchases of and additions to real estate		0	0
Additions to nonrefundable escrow deposits			0
Proceeds from settlement of foreign derivative contracts		3.1	43.3
Purchases of foreign derivative contracts		(0.6)	(5.8)
Investment in marketable securities		0	0
Proceeds from sale of marketable securities		0
Distributions from unconsolidated investments		0	0
Contributions to unconsolidated investments		0	(1)
Additions to development project asset		0
Proceeds from development project asset		0
Distributions from (investments in) consolidated subsidiaries, net		188.9	(9.9)
Net cash used in investing activities		191.4	21.6
Cash flows from financing activities:
Borrowings under senior notes payable			250
Borrowings under line of credit		400	125
Repayment of lines of credit		(50)	(125)
Borrowings under investment debt		0	0
Repayment of investment debt		0	0
Debt issue costs		(0.1)	(3.5)
Costs associated with KWE transaction		0
Repurchase and retirement of common stock		0	0
Dividends paid		0	0
Acquisition of KWE shares from noncontrolling interest holders		0	0
Contributions from noncontrolling interests, excluding KWE		0	0
Distributions to noncontrolling interests		0	0
Net cash provided by financing activities		349.9	246.5
Effect of currency exchange rate changes on cash and cash equivalents		0	0
Net change in cash and cash equivalents		335.7	43.9
Cash and cash equivalents, beginning of period		106	80.2
Cash and cash equivalents, end of period		441.7	124.1
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities		47.4	213.2
Cash flows from investing activities:
Additions to loans		0	(4.5)
Collections of loans		6.4	5
Net proceeds from sale of real estate		110.6	11.5
Purchases of and additions to real estate		(224.8)	(297.1)
Additions to nonrefundable escrow deposits			0
Proceeds from settlement of foreign derivative contracts		0	0
Purchases of foreign derivative contracts		0	0
Investment in marketable securities		(0.6)	(0.9)
Proceeds from sale of marketable securities		0.6
Distributions from unconsolidated investments		70.5	28.7
Contributions to unconsolidated investments		(40.6)	(52.5)
Additions to development project asset		0
Proceeds from development project asset		0
Distributions from (investments in) consolidated subsidiaries, net		(39.1)	(115.1)
Net cash used in investing activities		(117)	(424.9)
Cash flows from financing activities:
Borrowings under senior notes payable			0
Borrowings under line of credit		0	0
Repayment of lines of credit		0	0
Borrowings under investment debt		106	236.7
Repayment of investment debt		(35.8)	(24.6)
Debt issue costs		(0.5)	(1.2)
Costs associated with KWE transaction		0
Repurchase and retirement of common stock		0	0
Dividends paid		0	0
Acquisition of KWE shares from noncontrolling interest holders		0	0
Contributions from noncontrolling interests, excluding KWE		0	0
Distributions to noncontrolling interests		0	0
Net cash provided by financing activities		69.7	210.9
Effect of currency exchange rate changes on cash and cash equivalents		0	0
Net change in cash and cash equivalents		0.1	(0.8)
Cash and cash equivalents, beginning of period		45.4	37
Cash and cash equivalents, end of period		45.5	36.2
Non-guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities		285.8	89.6
Cash flows from investing activities:
Additions to loans		0	0
Collections of loans		10.5	133.8
Net proceeds from sale of real estate		151.3	254.5
Purchases of and additions to real estate		(250.2)	(451.3)
Additions to nonrefundable escrow deposits			0
Proceeds from settlement of foreign derivative contracts		0	0
Purchases of foreign derivative contracts		0	0
Investment in marketable securities		0	0
Proceeds from sale of marketable securities		0
Distributions from unconsolidated investments		18.9	34.7
Contributions to unconsolidated investments		(21.7)	(16.8)
Additions to development project asset		(13)
Proceeds from development project asset		36.9
Distributions from (investments in) consolidated subsidiaries, net		(250.5)	33.9
Net cash used in investing activities		(317.8)	(11.2)
Cash flows from financing activities:
Borrowings under senior notes payable			0
Borrowings under line of credit		0	0
Repayment of lines of credit		0	0
Borrowings under investment debt		152.3	696.7
Repayment of investment debt		(106.8)	(382.5)
Debt issue costs		(0.8)	(4.7)
Costs associated with KWE transaction		0
Repurchase and retirement of common stock		0	0
Dividends paid		0	0
Acquisition of KWE shares from noncontrolling interest holders		(3.3)	(70.6)
Contributions from noncontrolling interests, excluding KWE		43.6	25.3
Distributions to noncontrolling interests		(93.3)	(94.8)
Net cash provided by financing activities		(8.3)	169.4
Effect of currency exchange rate changes on cash and cash equivalents		51.5	(47.3)
Net change in cash and cash equivalents		11.2	200.5
Cash and cash equivalents, beginning of period		734.3	614.4
Cash and cash equivalents, end of period		$ 745.5	$ 814.9
[1]	See discussion of non-cash effects in notes to consolidated statements of cash flows.

Subsequent Events - KWE Merger

Subsequent Events - KWE Merger (Details) - Subsequent Event [Member] £ / shares in Units, $ / shares in Units, £ in Millions, $ in Millions	Oct. 23, 2017USD ($)$ / sharesshares	Oct. 23, 2017GBP (£)£ / sharesshares	Oct. 20, 2017$ / shares	Oct. 20, 2017£ / shares	Oct. 19, 2017
Subsequent Event [Line Items]
Common stock, par value (in dollars per share) | $ / shares	$ 0.0001		$ 0.0001
KWE [Member] | United Kingdom, Pounds [Member]
Subsequent Event [Line Items]
Foreign currency exchange rate					1.3182
Original Merger Offer [Member] | KWE [Member]
Subsequent Event [Line Items]
Dividends payable (per share) | (per share)			0.16	£ 0.12
New Merger Offer [Member] | KWE [Member]
Subsequent Event [Line Items]
Dividends payable (per share) | (per share)			$ 0.17	£ 0.13
KWE [Member]
Subsequent Event [Line Items]
Equity interest issued (in shares)	37,226,695	37,226,695
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
Settlement period	14 days	14 days
KWE [Member] | Original Merger Offer [Member]
Subsequent Event [Line Items]
Share consideration to shareholders (in shares)	0.667	0.667
KWE [Member] | New Merger Offer [Member]
Subsequent Event [Line Items]
Share consideration to shareholders (in shares)	0.3854	0.3854
Purchase of interest by parent (in pence per share) | £ / shares		£ 3
Purchase of interest by KWE (in pence per share) | £ / shares		£ 2.50
Eligible ordinary shares (in shares)	11,227,921	11,227,921
Percent of eligible ordinary shares	11.65%	11.65%
Unsatisfied share elections (in shares)	9,974,888	9,974,888
KWE [Member] | Merger Offer, Mix and Match Facility [Member]
Subsequent Event [Line Items]
Share consideration to shareholders (in shares)	0.5923	0.5923
Purchase of interest by KWE (in pence per share) | £ / shares		£ 8.59
Eligible ordinary shares (in shares)	30,889,536	30,889,536
Percent of eligible ordinary shares	32.05%	32.05%

Subsequent Events - Credit Faci

Subsequent Events - Credit Facility (Details) - USD ($)	Oct. 03, 2017	Dec. 10, 2015	Sep. 30, 2017	Sep. 30, 2016	Oct. 20, 2017	Dec. 31, 2016
Subsequent Event [Line Items]
Line of credit			$ 350,000,000			$ 0
Repayment of lines of credit			50,000,000	$ 125,000,000
Borrowings under line of credit			400,000,000	$ 125,000,000
Unsecured Debt [Member] | Revolving Credit Facility [Member] | KW Revolving Facility [Member]
Subsequent Event [Line Items]
Line of credit			350,000,000
Maximum borrowing capacity			475,000,000
Repayment of lines of credit			50,000,000
Borrowings under line of credit			400,000,000
Remaining borrowing capacity			125,000,000			$ 475,000,000
Line of Credit [Member]
Subsequent Event [Line Items]
Long-term debt			$ 350,000,000
Line of Credit [Member] | Revolving Credit Facility [Member] | KW Revolving Facility [Member]
Subsequent Event [Line Items]
Period of extension		1 year
Line of Credit [Member] | Revolving Credit Facility [Member] | KW Revolving Facility [Member] | Minimum [Member] | LIBOR [Member]
Subsequent Event [Line Items]
Basis spread on variable rate		2.50%
Line of Credit [Member] | Revolving Credit Facility [Member] | KW Revolving Facility [Member] | Maximum [Member] | LIBOR [Member]
Subsequent Event [Line Items]
Basis spread on variable rate		3.00%
Subsequent Event [Member] | A&R Facility [Member]
Subsequent Event [Line Items]
Credit facility maximum and term loan face amount	$ 700,000,000				$ 700,000,000
Long-term debt	400,000,000
Subsequent Event [Member] | Unsecured Debt [Member] | Revolving Credit Facility [Member] | KW Revolving Facility [Member]
Subsequent Event [Line Items]
Repayment of lines of credit	$ 150,000,000
Subsequent Event [Member] | Line of Credit [Member] | A&R Facility [Member]
Subsequent Event [Line Items]
Period of extension	1 year
Subsequent Event [Member] | Line of Credit [Member] | Revolving Credit Facility [Member] | A&R Facility [Member]
Subsequent Event [Line Items]
Maximum borrowing capacity	$ 500,000,000
Borrowings under line of credit	200,000,000
Remaining borrowing capacity	$ 300,000,000
Subsequent Event [Member] | Line of Credit [Member] | Revolving Credit Facility [Member] | A&R Facility [Member] | Minimum [Member] | LIBOR [Member]
Subsequent Event [Line Items]
Basis spread on variable rate	1.75%
Subsequent Event [Member] | Line of Credit [Member] | Revolving Credit Facility [Member] | A&R Facility [Member] | Maximum [Member] | LIBOR [Member]
Subsequent Event [Line Items]
Basis spread on variable rate	2.75%
Subsequent Event [Member] | Medium-term Notes [Member] | A&R Facility [Member]
Subsequent Event [Line Items]
Maximum borrowing capacity	$ 200,000,000
Proceeds from issuance of debt	$ 200,000,000
Subsequent Event [Member] | Medium-term Notes [Member] | A&R Facility [Member] | Minimum [Member] | LIBOR [Member]
Subsequent Event [Line Items]
Basis spread on variable rate	1.65%
Subsequent Event [Member] | Medium-term Notes [Member] | A&R Facility [Member] | Maximum [Member] | LIBOR [Member]
Subsequent Event [Line Items]
Basis spread on variable rate	2.65%

Subsequent Events - 2042 Notes

Subsequent Events - 2042 Notes Redemption (Details)	Dec. 01, 2017
Subsequent Event [Member] | Forecast [Member] | Senior Notes [Member] | 7.75% Senior Notes Due 2042 [Member]
Subsequent Event [Line Items]
Percentage of principal amount redeemed	100.00%