Summary of Significant Accounting Polices and Adoption of New Accounting Pronouncements	3 Months Ended
Mar. 31, 2020
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 — Revenue consists of management and leasing fees (including performance fees), commissions, rental and hotel income and sales of real estate. ASC Topic 606, Revenue from Contracts with Customers, is a five step model to recognize revenue from customer contracts. The model identifies the contract, any separate performance obligations in the contract, determines the transaction price, allocates the transaction price and recognizes revenue when the performance obligations are satisfied. Management has concluded that, with the exception of performance fees, the nature of the Company's revenue streams is such that the requirements are generally satisfied at the time that the fee becomes receivable. Rental income from operating leases is generally recognized on a straight-line basis over the terms of the leases in accordance with ASC Topic 842, Leases. Hotel income is earned when rooms are occupied or goods and services have been delivered or rendered. Sales of real estate are recognized when title to the real property passes to the buyer and there is no continuing involvement in the real property. Management fees are primarily comprised of investment management and property services fees. Investment management fees are earned from limited partners of funds, co-investments, or separate accounts and are generally based on a fixed percentage of committed capital or net asset value. Property services fees are earned for managing the operations of real estate assets and are generally based on a fixed percentage of the revenues generated from the respective real estate assets. The Company provides investment management and property services on investments it also has an ownership interest in. Fees earned on consolidated properties are eliminated in consolidation and fees on unconsolidated investments are eliminated for the portion that relate to the Company's ownership interest. Commissions primarily consist of acquisition and disposition fees, auction and real estate sales commissions, leasing commissions, and consulting fees. Acquisition and disposition fees are earned for identifying and closing investments on behalf of investors and are based on a fixed percentage of the acquisition or disposition price, as applicable. Acquisition and disposition fees are recognized upon the successful completion of an acquisition or disposition after all required services have been performed. In the case of auction and real estate sales commissions, the revenue is generally recognized when escrow closes. In accordance with the guidelines established for Reporting Revenue Gross as a Principal versus Net as an Agent in the ASC Topic 606, Kennedy Wilson records commission revenues and expenses on a gross basis. Of the criteria listed in ASC Topic 606, Kennedy Wilson is the primary obligor in the transaction, does not have inventory risk, performs all or part of the service, has credit risk, and has wide latitude in establishing the price of services rendered and discretion in selection of agents and determination of service specifications. Leasing fees that are payable upon tenant occupancy, payment of rent or other events beyond Kennedy Wilson's control are recognized upon the occurrence of such events. Sales of real estate are recognized when title to the real property passes to the buyer and there is no continuing involvement in the real property. ASC Subtopic 610-20, Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets. Under ASC Subtopic 610-20, the Company recognizes the entire gain attributed to contributions of real estate properties to unconsolidated entities. 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). The ownership of the other interest holders in consolidated subsidiaries is reflected as noncontrolling interests. Real estate is recorded based on cumulative costs incurred and allocated based on relative fair value. 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. UNCONSOLIDATED INVESTMENTS — Kennedy Wilson has a number of joint venture interests that were formed to acquire, manage, and/or sell real estate. Investments in unconsolidated investments are accounted for under the equity method of accounting as Kennedy Wilson can exercise significant influence, but does not have the ability to control the unconsolidated investment. An investment in an unconsolidated investment is recorded at its initial investment and is increased or decreased by Kennedy Wilson’s share of income or loss, plus additional contributions and less distributions. A decline in the value of an unconsolidated investment that is other than temporary is recognized when evidence indicates that such a decline has occurred in accordance with ASC Topic 323, Investments - Equity Method and Joint Ventures. Kennedy Wilson records its investments in certain commingled funds it manages and sponsors (the "Funds") that are investment companies under the ASC Topic 946, Financial Services - Investment Companies, based upon the net assets that would be allocated to its interests in the Funds assuming the Funds were to liquidate their investments at fair value as of the reporting date. Thus, the Funds reflect their investments at fair value, with unrealized gains and losses resulting from changes in fair value reflected in their earnings. Additionally, Kennedy Wilson elected the fair value option for 33 investments in unconsolidated investment entities ("FV Option" investments). Due to the nature of these investments, Kennedy Wilson elected to record these investments at fair value in order to report the change in value in the underlying investments in the results of our current operations. Performance fees or carried interest are allocated to the general partner, special limited partner or asset manager of Kennedy Wilson's real estate funds based on the cumulative performance of the fund and are subject to preferred return thresholds of the limited partners. At the end of each reporting period, Kennedy Wilson calculates the performance fee that would be due as if the fair value of the underlying investments were realized as of such date, irrespective of whether such amounts have been realized. As the fair value of underlying investments varies between reporting periods, it is necessary to make adjustments to amounts recorded as performance fees to reflect either (a) positive performance resulting in an increase in the performance fee allocated to the general partner or asset manager or (b) negative performance that would cause the amount due to Kennedy Wilson to be less than the amount previously recognized as revenue, resulting in a negative adjustment to performance fees allocated to the general partner or asset manager. The Company has concluded that performance fees to the Company, based on cumulative fund performance to-date, represent carried interests. For equity method investments, these fees are included as a component of the income reported from the underlying equity method investee and for equity method investments where the fair value option has been elected, these fees are included in the determination of fair value under ASC Topic 820, Fair Value Measurement. FAIR VALUE MEASUREMENTS — Kennedy Wilson accounts for fair value measurements of financial assets and financial liabilities and for fair value measurements of non-financial items that are recognized or disclosed at fair value in the financial statements on a recurring basis under the provisions of ASC Topic 820. ASC Topic 820 defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When estimating fair value in the absence of an orderly transaction between market participants, valuations of real estate are based on management estimates of the real estate assets using income and market approaches. The indebtedness securing the real estate and the investments in debt securities are valued, in part, based on third party valuations and management estimates also using an income approach. The use of different market assumptions or estimation methodologies may have a material impact on the estimated fair value amounts. See Note 5 for further discussion of the estimation uncertainty related to COVID-19. FAIR VALUE OF FINANCIAL INSTRUMENTS — The estimated fair value of financial instruments is determined using available market information and appropriate valuation methodologies. Considerable judgment, is necessary, however, to interpret market data and develop the related estimates of fair value. Accordingly, the estimates presented herein are not necessarily indicative of the amounts that could be realized upon disposition of the financial instruments. The use of different market assumptions or estimation methodologies may have a material impact on the estimated fair value amounts. FOREIGN CURRENCIES — The financial statements of Kennedy Wilson'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 and the British pound sterling. 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 the Company's 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 exposure to foreign currencies. See Note 5 for a complete discussion on currency derivative contracts. RECENT ACCOUNTING PRONOUNCEMENTS COVID-19 LEASE MODIFICATION ACCOUNTING RELIEF—Due to the business disruptions and challenges severely affecting the global economy caused by the COVID-19 pandemic, many lessors may be required to provide rent deferrals and other lease concessions to lessees. While the lease modification guidance in ASC 842 addresses routine changes to lease terms resulting from negotiations between the lessee and the lessor, this guidance did not contemplate concessions being so rapidly executed to address the sudden liquidity constraints of some lessees arising from the COVID-19 pandemic and restrictions intended to prevent its spread. In April 2020, the FASB staff issued a question and answer document (the “Lease Modification Q&A”) focused on the application of lease accounting guidance to lease concessions provided as a result of the COVID-19 pandemic. Under existing lease guidance, on a lease by lease basis the Company would have to determine, if a lease concession was the result of a new arrangement reached with the tenant (treated within the lease modification accounting framework) or if a lease concession was under the enforceable rights and obligations within the existing lease agreement (precluded from applying the lease modification accounting framework). The Lease Modification Q&A allows the Company, if certain criteria have been met, to bypass the lease by lease analysis, and instead elect to either apply the lease modification accounting framework or not, with such election applied consistently to leases with similar characteristics and similar circumstances. The Company has had strong rental collections in April and has received some requests for lease modifications but is still evaluating what if anything may be granted. Should the volume of lease concessions be insignificant the Company may account for any lease modifications under existing ASC 842 guidance. The Lease Modification Q&A had no material impact on the Company’s consolidated financial statements as of and for the three months ended March 31, 2020. The Company will continue to evaluate the extent of lease concessions granted to tenants as a result of the COVID-19 pandemic in future periods and the elections made by the Company at the time of entering into such concessions. In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment, 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. The adoption of this standard did not have a material impact on Kennedy Wilson's consolidated financial statements. In June 2016, the FASB updated ASC Topic 326 Financial Instruments - Credit Losses with ASU 2016-13 Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). ASU 2016-13 enhances the methodology of measuring expected credit losses to include the use of forward-looking information to better inform credit loss estimates. This ASU is effective for all entities for annual and interim periods in fiscal years beginning after December 15, 2019. In addition, in November 2018 the FASB issued ASU 2018-19, which clarifies that receivables arising from operating leases are not within the scope of the credit losses standard, but rather, should be accounted for in accordance with the leases standard. The adoption of this standard did not have a material impact on Kennedy Wilson's consolidated financial statements. In March 2020, the FASB issued ASU No. 2020-04, Reference Rate Reform (Topic 848), which provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendments apply only to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. The ASU was effective upon issuance on a prospective basis beginning January 1, 2020 and may be elected over time as reference rate reform activities occur. The Company are currently evaluating the impact of adopting ASU 2020-04 on our consolidated financial statements. In December 2019, the FASB issued ASU No. 2019-12, Simplifying the Accounting for Income Taxes (Topic 740) removes certain exceptions to the general principles in Topic 740 related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. The new guidance also simplifies aspects of the accounting for franchise taxes and enacted changes in tax laws or rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. This ASU is effective for the Company for all interim and annual periods beginning January 1, 2021, with early adoption permitted. The Company early adopted ASU 2019-12 beginning January 1, 2020 on a prospective basis. The adoption of this standard did not have any impact on the Company's condensed consolidated financial statements and related disclosures. The FASB did not issue any other ASUs during the first three months of 2020 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.

REVENUE RECOGNITION — Revenue consists of management and leasing fees (including performance fees), commissions, rental and hotel income and sales of real estate. ASC Topic 606, Revenue from Contracts with Customers, is a five step model to recognize revenue from customer contracts. The model identifies the contract, any separate performance obligations in the contract, determines the transaction price, allocates the transaction price and recognizes revenue when the performance obligations are satisfied. Management has concluded that, with the exception of performance fees, the nature of the Company's revenue streams is such that the requirements are generally satisfied at the time that the fee becomes receivable.

Rental income from operating leases is generally recognized on a straight-line basis over the terms of the leases in accordance with ASC Topic 842, Leases. Hotel income is earned when rooms are occupied or goods and services have been delivered or rendered. Sales of real estate are recognized when title to the real property passes to the buyer and there is no continuing involvement in the real property.

Management fees are primarily comprised of investment management and property services fees. Investment management fees are earned from limited partners of funds, co-investments, or separate accounts and are generally based on a fixed percentage of committed capital or net asset value. Property services fees are earned for managing the operations of real estate assets and are generally based on a fixed percentage of the revenues generated from the respective real estate assets. The Company provides investment management and property services on investments it also has an ownership interest in. Fees earned on consolidated properties are eliminated in consolidation and fees on unconsolidated investments are eliminated for the portion that relate to the Company's ownership interest.

of investors and are based on a fixed percentage of the acquisition or disposition price, as applicable. Acquisition and disposition fees are recognized upon the successful completion of an acquisition or disposition after all required services have been performed. In the case of auction and real estate sales commissions, the revenue is generally recognized when escrow closes. In accordance with the guidelines established for Reporting Revenue Gross as a Principal versus Net as an Agent in the ASC Topic 606, Kennedy Wilson records commission revenues and expenses on a gross basis. Of the criteria listed in ASC Topic 606, Kennedy Wilson is the primary obligor in the transaction, does not have inventory risk, performs all or part of the service, has credit risk, and has wide latitude in establishing the price of services rendered and discretion in selection of agents and determination of service specifications. Leasing fees that are payable upon tenant occupancy, payment of rent or other events beyond Kennedy Wilson's control are recognized upon the occurrence of such events.

Sales of real estate are recognized when title to the real property passes to the buyer and there is no continuing involvement in the real property. ASC Subtopic 610-20, Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets. Under ASC Subtopic 610-20, the Company recognizes the entire gain attributed to contributions of real estate properties to unconsolidated entities.

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). The ownership of the other interest holders in consolidated subsidiaries is reflected as noncontrolling interests. Real estate is recorded based on cumulative costs incurred and allocated based on relative fair value.

UNCONSOLIDATED INVESTMENTS — Kennedy Wilson has a number of joint venture interests that were formed to acquire, manage, and/or sell real estate. Investments in unconsolidated investments are accounted for under the equity method of accounting as Kennedy Wilson can exercise significant influence, but does not have the ability to control the unconsolidated investment. An investment in an unconsolidated investment is recorded at its initial investment and is increased or decreased by Kennedy Wilson’s share of income or loss, plus additional contributions and less distributions. A decline in the value of an unconsolidated investment that is other than temporary is recognized when evidence indicates that such a decline has occurred in accordance with ASC Topic 323, Investments - Equity Method and Joint Ventures.

Kennedy Wilson records its investments in certain commingled funds it manages and sponsors (the "Funds") that are investment companies under the ASC Topic 946, Financial Services - Investment Companies, based upon the net assets that would be allocated to its interests in the Funds assuming the Funds were to liquidate their investments at fair value as of the reporting date. Thus, the Funds reflect their investments at fair value, with unrealized gains and losses resulting from changes in fair value reflected in their earnings.

Additionally, Kennedy Wilson elected the fair value option for 33 investments in unconsolidated investment entities ("FV Option" investments). Due to the nature of these investments, Kennedy Wilson elected to record these investments at fair value in order to report the change in value in the underlying investments in the results of our current operations.

Performance fees or carried interest are allocated to the general partner, special limited partner or asset manager of Kennedy Wilson's real estate funds based on the cumulative performance of the fund and are subject to preferred return thresholds of the limited partners. At the end of each reporting period, Kennedy Wilson calculates the performance fee that would be due as if the fair value of the underlying investments were realized as of such date, irrespective of whether such amounts have been realized. As the fair value of underlying investments varies between reporting periods, it is necessary to make adjustments to amounts recorded as performance fees to reflect either (a) positive performance resulting in an increase in the performance fee allocated to the general partner or asset manager or (b) negative performance that would cause the amount due to Kennedy Wilson to be less than the amount previously recognized as revenue, resulting in a negative adjustment to performance fees allocated to the general partner or asset manager.

The Company has concluded that performance fees to the Company, based on cumulative fund performance to-date, represent carried interests. For equity method investments, these fees are included as a component of the income reported from the underlying equity method investee and for equity method investments where the fair value option has been elected, these fees are included in the determination of fair value under ASC Topic 820, Fair Value Measurement.

FAIR VALUE MEASUREMENTS — Kennedy Wilson accounts for fair value measurements of financial assets and financial liabilities and for fair value measurements of non-financial items that are recognized or disclosed at fair value in the financial statements on a recurring basis under the provisions of ASC Topic 820. ASC Topic 820 defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When estimating fair value in the absence of an orderly transaction between market participants, valuations of real estate are based on management estimates of the real estate assets using income and market approaches. The indebtedness securing the real estate and the investments in debt securities are valued, in part, based on third party valuations and management estimates also using an income approach. The use of different market assumptions or estimation methodologies may have a material impact on the estimated fair value amounts. See Note 5 for further discussion of the estimation uncertainty related to COVID-19.

FAIR VALUE OF FINANCIAL INSTRUMENTS — The estimated fair value of financial instruments is determined using available market information and appropriate valuation methodologies. Considerable judgment, is necessary, however, to interpret market data and develop the related estimates of fair value. Accordingly, the estimates presented herein are not necessarily indicative of the amounts that could be realized upon disposition of the financial instruments. The use of different market assumptions or estimation methodologies may have a material impact on the estimated fair value amounts.

FOREIGN CURRENCIES — The financial statements of Kennedy Wilson'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 and the British pound sterling. 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 the Company's 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 exposure to foreign currencies. See Note 5 for a complete discussion on currency derivative contracts.

COVID-19 LEASE MODIFICATION ACCOUNTING RELIEF—Due to the business disruptions and challenges severely affecting the global economy caused by the COVID-19 pandemic, many lessors may be required to provide rent deferrals and other lease concessions to lessees. While the lease modification guidance in ASC 842 addresses routine changes to lease terms resulting from negotiations between the lessee and the lessor, this guidance did not contemplate concessions being so rapidly executed to address the sudden liquidity constraints of some lessees arising from the COVID-19 pandemic and restrictions intended to prevent its spread.

In April 2020, the FASB staff issued a question and answer document (the “Lease Modification Q&A”) focused on the application of lease accounting guidance to lease concessions provided as a result of the COVID-19 pandemic. Under existing lease guidance, on a lease by lease basis the Company would have to determine, if a lease concession was the result of a new arrangement reached with the tenant (treated within the lease modification accounting framework) or if a lease concession was under the enforceable rights and obligations within the existing lease agreement (precluded from applying the lease modification accounting framework). The Lease Modification Q&A allows the Company, if certain criteria have been met, to bypass the lease by lease analysis, and instead elect to either apply the lease modification accounting framework or not, with such election applied consistently to leases with similar characteristics and similar circumstances. The Company has had strong rental collections in April and has received some requests for lease modifications but is still evaluating what if anything may be granted. Should the volume of lease concessions be insignificant the Company may account for any lease modifications under existing ASC 842 guidance. The Lease Modification Q&A had no material impact on the Company’s consolidated financial statements as of and for the three months ended March 31, 2020. The Company will continue to evaluate the extent of lease concessions granted to tenants as a result of the COVID-19 pandemic in future periods and the elections made by the Company at the time of entering into such concessions.

In June 2016, the FASB updated ASC Topic 326 Financial Instruments - Credit Losses with ASU 2016-13 Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). ASU 2016-13 enhances the methodology of measuring expected credit losses to include the use of forward-looking information to better inform credit loss estimates. This ASU is effective for all entities for annual and interim periods in fiscal years beginning after December 15, 2019. In addition, in November 2018 the FASB issued ASU 2018-19, which clarifies that receivables arising from operating leases are not within the scope of the credit losses standard, but rather, should be accounted for in accordance with the leases standard. The adoption of this standard did not have a material impact on Kennedy Wilson's consolidated financial statements.

In March 2020, the FASB issued ASU No. 2020-04, Reference Rate Reform (Topic 848), which provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendments apply only to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. The ASU was effective upon issuance on a prospective basis beginning January 1, 2020 and may be elected over time as reference rate reform activities occur. The Company are currently evaluating the impact of adopting ASU 2020-04 on our consolidated financial statements.

In December 2019, the FASB issued ASU No. 2019-12, Simplifying the Accounting for Income Taxes (Topic 740) removes certain exceptions to the general principles in Topic 740 related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. The new guidance also simplifies aspects of the accounting for franchise taxes and enacted changes in tax laws or rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. This ASU is effective for the Company for all interim and annual periods beginning January 1, 2021, with early adoption permitted. The Company early adopted ASU 2019-12 beginning January 1, 2020 on a prospective basis. The adoption of this standard did not have any impact on the Company's condensed consolidated financial statements and related disclosures.