Summary of Significant Accounting Policies and Adoption of New Accounting Pronouncements	9 Months Ended
Sep. 30, 2014
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 our 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, we calculate 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 us 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, and substantially all of the carried interest is recognized in income from unconsolidated investments in our consolidated statements of operations. Total performance fees recognized from inception through September 30, 2014 that may be reversed in future periods if there is negative fund or loan pool performance totaled $7.3 million. Performance fees accrued as of September 30, 2014 and December 31, 2013 were $7.3 million and $6.1 million, respectively, and are included in accounts receivable 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 Subtopics 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 interests are reported within equity as a separate component of Kennedy Wilson's equity in accordance with ASC Subtopic 810-10, Noncontrolling Interests in Consolidated Financial Statements. Revenues, expenses, gains, losses, net income (loss), and other comprehensive income are reported in the consolidated statements of operations at the consolidated amounts and net income (loss) and comprehensive income attributable to noncontrolling interests are separately stated. FOREIGN CURRENCIES—The financial statements of 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 the 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. 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. 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—On April 10, 2014, the FASB issued ASU 2014-08, which amends the definition of discontinued operations and requires additional disclosures for disposal transactions that do not meet the revised discontinued operations criteria. ASU 2014-08 is required to be adopted for fiscal years beginning after December 15, 2014, with early adoption permitted. Our early adoption of this pronouncement on January 1, 2014 did not have a material impact on KW Group's consolidated financial statements. In May 2014, the FASB issued an accounting standard update that will use 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 replace most existing revenue recognition in GAAP when it becomes effective for the Company on January 1, 2017. We have not yet selected a transition method nor has it determined the effect of the standard on its ongoing financial reporting. The FASB did not issue any other ASCs during the first nine months of 2014 that we expect to be applicable and have a material impact on our financial position or results of operations. RECLASSIFICATIONS—Certain balances included in prior year's financial statements have been reclassified to conform with the current year's presentation.

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 our 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, we calculate 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 us 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, and substantially all of the carried interest is recognized in income from unconsolidated investments in our consolidated statements of operations. Total performance fees recognized from inception through September 30, 2014 that may be reversed in future periods if there is negative fund or loan pool performance totaled $7.3 million. Performance fees accrued as of September 30, 2014 and December 31, 2013 were $7.3 million and $6.1 million, respectively, and are included in accounts receivable 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 Subtopics 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 interests are reported within equity as a separate component of Kennedy Wilson's equity in accordance with ASC Subtopic 810-10, Noncontrolling Interests in Consolidated Financial Statements. Revenues, expenses, gains, losses, net income (loss), and other comprehensive income are reported in the consolidated statements of operations at the consolidated amounts and net income (loss) and comprehensive income attributable to noncontrolling interests are separately stated.

FOREIGN CURRENCIES—The financial statements of 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 the 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.

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.

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—On April 10, 2014, the FASB issued ASU 2014-08, which amends the definition of discontinued operations and requires additional disclosures for disposal transactions that do not meet the revised discontinued operations criteria. ASU 2014-08 is required to be adopted for fiscal years beginning after December 15, 2014, with early adoption permitted. Our early adoption of this pronouncement on January 1, 2014 did not have a material impact on KW Group's consolidated financial statements.

In May 2014, the FASB issued an accounting standard update that will use 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 replace most existing revenue recognition in GAAP when it becomes effective for the Company on January 1, 2017. We have not yet selected a transition method nor has it determined the effect of the standard on its ongoing financial reporting.

The FASB did not issue any other ASCs during the first nine months of 2014 that we expect to be applicable and have a material impact on our financial position or results of operations.

RECLASSIFICATIONS—Certain balances included in prior year's financial statements have been reclassified to conform with the current year's presentation.