Oaktree Capital Group, LLC 6.625% PFD UT A (OAK-PA) 10-Q 4 May 18 2018 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	Apr. 30, 2018
Entity Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Trading Symbol	OAK
Entity Registrant Name	Oaktree Capital Group, LLC
Entity Central Index Key	1,403,528
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Class A Units
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		71,178,664
Class B Units
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		86,007,356

Condensed Consolidated Statemen

Condensed Consolidated Statements of Financial Condition (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Assets
Cash and cash-equivalents	$ 1,049,331	$ 959,465
Receivable for securities sold	62,265	98,738
Derivative assets, at fair value	9,005	5,751
Total assets	9,122,721	9,014,796
Liabilities:
Derivative liabilities, at fair value	37,112	21,586
Debt obligations	862,934	862,401
Total liabilities	6,203,781	6,133,631
Commitments and contingencies (Note 17)
Non-controlling redeemable interests in consolidated funds	861,864	860,548
Unitholders’ capital:
Paid-in capital	866,576	788,413
Retained earnings	99,789	80,128
Accumulated other comprehensive income	357	443
Class A unitholders’ capital	966,722	868,984
Non-controlling interests in consolidated subsidiaries	1,079,586	1,121,237
Non-controlling interests in consolidated funds	10,768	30,396
Total unitholders’ capital	2,057,076	2,020,617
Total liabilities and unitholders’ capital	9,122,721	9,014,796
Class A units, no par value, unlimited units authorized, 71,171,509 and 65,310,226 units issued and outstanding as of March 31, 2018 and December 31, 2017, respectively
Unitholders’ capital:
Common stock	0	0
Class B units, no par value, unlimited units authorized, 86,007,356 and 90,975,687 units issued and outstanding as of March 31, 2018 and December 31, 2017, respectively
Unitholders’ capital:
Common stock	0	0
Oaktree Capital Group Excluding Consolidated Funds
Assets
Cash and cash-equivalents	634,691	481,631
U.S. Treasury and other securities	229,274	176,602
Corporate investments (includes $56,377 and $50,778 measured at fair value as of March 31, 2018 and December 31, 2017, respectively)	1,002,201	1,009,631
Due from affiliates	153,425	223,224
Deferred tax assets	243,241	202,460
Investments, at fair value	56,377	50,778
Other assets	562,633	564,529
Liabilities:
Accrued compensation expense	201,806	274,984
Accounts payable, accrued expenses and other liabilities	173,855	158,716
Due to affiliates	211,736	177,873
Derivative liabilities, at fair value	34,921	20,633
Debt obligations	745,546	746,274
Consolidated Funds
Assets
Cash and cash-equivalents	414,640	477,834
Investments, at fair value	5,717,648	5,660,540
Dividends and interest receivable	22,156	21,144
Due from brokers	62,911	54,289
Receivable for securities sold	78,147	141,582
Derivative assets, at fair value	346	731
Other assets	1,408	599
Liabilities:
Accounts payable, accrued expenses and other liabilities	20,257	18,111
Payables for securities purchased	590,154	580,906
Securities sold short, at fair value	69,808	86,467
Derivative liabilities, at fair value	2,191	953
Distributions payable	6,625	7,354
Borrowings under credit facilities	862,934	862,401
Debt obligations	$ 3,318,869	$ 3,219,592

Condensed Consolidated Stateme3

Condensed Consolidated Statements of Financial Condition (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Class A Units
Par Value (in dollars per share)	$ 0	$ 0
Units Authorized (in shares)	Unlimited	Unlimited
Issued (in shares)	71,171,509	65,310,226
Outstanding (in shares)	71,171,509	65,310,226
Class B Units
Par Value (in dollars per share)	$ 0	$ 0
Units Authorized (in shares)	Unlimited	Unlimited
Issued (in shares)	86,007,356	90,975,687
Outstanding (in shares)	86,007,356	90,975,687
Oaktree Capital Group Excluding Consolidated Funds
Investments, at fair value	$ 56,377	$ 50,778

Condensed Consolidated Stateme4

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenues:
Management fees	$ 185,415	$ 180,928
Incentive income	151,906	108,657
Total revenues	337,321	289,585
Expenses:
Compensation and benefits	(108,754)	(104,487)
Equity-based compensation	(14,621)	(14,953)
Incentive income compensation	(84,815)	(34,608)
Total compensation and benefits expense	(208,190)	(154,048)
General and administrative	(32,964)	(32,219)
Depreciation and amortization	(6,402)	(3,824)
Consolidated fund expenses	(3,480)	(2,471)
Total expenses	(251,036)	(192,562)
Other income (loss):
Interest expense	(40,579)	(48,770)
Interest and dividend income	62,619	47,960
Net realized gain (loss) on consolidated funds’ investments	14,599	(1,872)
Net change in unrealized appreciation (depreciation) on consolidated funds’ investments	(14,386)	24,678
Investment income	34,563	50,451
Non-Operating Group income (expense)	697	4,663
Total other income	57,513	77,110
Income before income taxes	143,798	174,133
Income taxes	(6,397)	(12,302)
Net income	137,401	161,831
Less:
Net income attributable to Oaktree Capital Group, LLC	$ 52,732	$ 54,915
Distributions declared per Class A unit (in dollars per share)	$ 0.76	$ 0.63
Net income per unit (basic and diluted):
Net income per Class A unit (in dollars per share)	$ 0.78	$ 0.87
Weighted average number of Class A units outstanding (in shares)	67,918	63,022
Consolidated Funds
Less:
Net (income) loss attributable to non-controlling interests	$ (10,725)	$ (9,692)
Consolidated Subsidiaries
Less:
Net (income) loss attributable to non-controlling interests	$ (73,944)	$ (97,224)

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Net income	$ 137,401	$ 161,831
Other comprehensive loss, net of tax:
Foreign currency translation adjustments	(219)	(4,657)
Unrealized gain on interest-rate swap designated as cash-flow hedge		60
Other comprehensive loss, net of tax	(219)	(4,597)
Total comprehensive income	137,182	157,234
Less: Comprehensive income attributable to non-controlling interests	(84,536)	(104,192)
Comprehensive income attributable to Oaktree Capital Group, LLC	52,646	53,042
Oaktree Capital Group, LLC
Net income	52,732	54,915
Other comprehensive loss, net of tax:
Foreign currency translation adjustments	(86)	(1,897)
Unrealized gain on interest-rate swap designated as cash-flow hedge		24
Other comprehensive loss, net of tax	(86)	(1,873)
Total comprehensive income	52,646	53,042
Less: Comprehensive income attributable to non-controlling interests	0	0
Comprehensive income attributable to Oaktree Capital Group, LLC	52,646	53,042
Non-controlling Interests in Consolidated Subsidiaries
Net income	73,944	97,224
Other comprehensive loss, net of tax:
Foreign currency translation adjustments	(133)	(2,760)
Unrealized gain on interest-rate swap designated as cash-flow hedge		36
Other comprehensive loss, net of tax	(133)	(2,724)
Total comprehensive income	73,811	94,500
Less: Comprehensive income attributable to non-controlling interests	(73,811)	(94,500)
Comprehensive income attributable to Oaktree Capital Group, LLC	0	0
Non-controlling Interests in Consolidated Funds
Net income	10,725	9,692
Other comprehensive loss, net of tax:
Foreign currency translation adjustments	0	0
Unrealized gain on interest-rate swap designated as cash-flow hedge		0
Other comprehensive loss, net of tax	0	0
Total comprehensive income	10,725	9,692
Less: Comprehensive income attributable to non-controlling interests	(10,725)	(9,692)
Comprehensive income attributable to Oaktree Capital Group, LLC	$ 0	$ 0

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net income	$ 137,401	$ 161,831
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Adoption of revenue recognition standard	48,709	0
Investment income	(34,563)	(50,451)
Depreciation and amortization	6,402	3,824
Equity-based compensation	14,621	14,953
Net realized and unrealized (gain) loss from consolidated funds’ investments	(213)	(22,806)
Amortization (accretion) of original issue and market discount of consolidated funds’ investments, net	(838)	(413)
Income distributions from corporate investments in funds and companies	60,794	44,465
Other non-cash items	139	517
Cash flows due to changes in operating assets and liabilities:
Net cash provided by (used in) operating activities	147,730	(245,574)
Cash flows from investing activities:
Purchases of U.S. Treasury and other securities	(142,163)	(220,035)
Proceeds from maturities and sales of U.S. Treasury and other securities	89,654	380,741
Corporate investments in funds and companies	(76,149)	(8,150)
Distributions and proceeds from corporate investments in funds and companies	209,006	79,998
Purchases of fixed assets	(205)	(4,250)
Net cash provided by investing activities	80,143	228,304
Cash flows from financing activities:
Net cash used in financing activities	(125,750)	(14,751)
Effect of exchange rate changes on cash	58	(3,168)
Net increase (decrease) in cash and cash-equivalents	102,181	(35,189)
Deconsolidation of funds	(12,315)	0
Cash and cash-equivalents, beginning balance	959,465	959,200
Cash and cash-equivalents, ending balance	1,049,331	924,011
Consolidated Funds
Cash flows due to changes in operating assets and liabilities:
Increase in dividends and interest receivable	(826)	(631)
(Increase) decrease in due from brokers	(8,622)	48,895
(Increase) decrease in receivables for securities sold	65,327	(104,540)
Increase in other assets	(809)	(78)
Increase in accounts payable, accrued expenses and other liabilities	1,985	6,246
Increase in payables for securities purchased	833	332,907
Purchases of securities	(1,147,150)	(1,537,496)
Proceeds from maturities and sales of securities	1,015,016	912,891
Cash flows from financing activities:
Payment of debt issuance costs	(899)	0
Repayment on debt obligations issued by CLOs	(455,691)	(412,500)
Distributions to non-controlling interests	(93,323)	(9,762)
Contributions from non-controlling interests	59,745	34,786
Proceeds from debt obligations issued by CLOs	505,480	412,500
Borrowings on credit facilities	0	91,500
Repayments on credit facilities	0	(8,251)
Cash and cash-equivalents, beginning balance	477,834
Cash and cash-equivalents, ending balance	414,640	561,122
Oaktree Capital Group Excluding Consolidated Funds
Cash flows due to changes in operating assets and liabilities:
(Increase) decrease in other assets	(6,298)	1,325
Increase in net due to affiliates	69,374	69,025
Decrease in accrued compensation expense	(73,603)	(132,186)
Increase in accounts payable, accrued expenses and other liabilities	51	6,148
Cash flows from financing activities:
Proceeds from issuance of Class A units	219,750	0
Purchase of OCGH units	(219,525)	0
Repurchase and cancellation of units	(10,453)	(9,689)
Distributions to Class A unitholders	(53,426)	(39,785)
Distributions to OCGH unitholders	(73,933)	(72,376)
Payment of debt issuance costs	(2,235)	0
Distributions to non-controlling interests	(1,240)	(1,174)
Cash and cash-equivalents, beginning balance	481,631
Cash and cash-equivalents, ending balance	$ 634,691	$ 362,889

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Changes in Unitholders' Capital (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Increase (decrease) in Stockholders' Equity:
Unitholders' capital, value	$ 2,020,617	$ 1,885,171
Cumulative-effect adjustment from adoption of accounting guidance			$ 48,709	$ 0
Issuance of units	219,750
Repurchase and cancellation of units	(229,978)	(9,689)
Deferred tax effect resulting from the purchase of OCGH units	6,051
Equity reallocation between controlling and non-controlling interests	(73,830)	(12,061)
Capital increase related to equity-based compensation	13,697	13,673
Distributions declared	(148,399)	(113,924)
Net income	126,848	152,828
Foreign currency translation adjustment, net of tax	(219)	(4,657)
Unrealized gain on interest-rate swap designated as cash-flow hedge, net of tax		60
Unitholders' capital, value	2,057,076	1,923,462
Paid-in Capital
Increase (decrease) in Stockholders' Equity:
Unitholders' capital, value	788,413	749,618
Cumulative-effect adjustment from adoption of accounting guidance			0	(352)
Issuance of units	219,750
Repurchase and cancellation of units	(227,424)	(7,186)
Equity reallocation between controlling and non-controlling interests	73,830	12,061
Capital increase related to equity-based compensation	5,956	5,571
Distributions declared		0
Unitholders' capital, value	866,576	759,712
Retained Earnings
Increase (decrease) in Stockholders' Equity:
Unitholders' capital, value	80,128	54,494
Cumulative-effect adjustment from adoption of accounting guidance			20,355	352
Distributions declared	(53,426)	(39,785)
Net income	52,732	54,915
Unitholders' capital, value	99,789	69,976
Accumulated Other Comprehensive Income (Loss)
Increase (decrease) in Stockholders' Equity:
Unitholders' capital, value	443	1,793
Foreign currency translation adjustment, net of tax	(86)	(1,897)
Unrealized gain on interest-rate swap designated as cash-flow hedge, net of tax		24
Unitholders' capital, value	357	(80)
Non-controlling Interests in Consolidated Subsidiaries
Increase (decrease) in Stockholders' Equity:
Unitholders' capital, value	1,121,237	1,050,319
Cumulative-effect adjustment from adoption of accounting guidance			$ 28,354	$ 0
Repurchase and cancellation of units	(2,554)	(2,503)
Equity reallocation between controlling and non-controlling interests	(73,830)	(12,061)
Capital increase related to equity-based compensation	7,741	8,102
Distributions declared	(75,173)	(73,550)
Net income	73,944	97,224
Foreign currency translation adjustment, net of tax	(133)	(2,760)
Unrealized gain on interest-rate swap designated as cash-flow hedge, net of tax		36
Unitholders' capital, value	1,079,586	1,064,807
Non-controlling Interests in Consolidated Funds
Increase (decrease) in Stockholders' Equity:
Unitholders' capital, value	30,396	28,947
Distributions declared	(19,800)	(589)
Net income	172	689
Foreign currency translation adjustment, net of tax	0	0
Unrealized gain on interest-rate swap designated as cash-flow hedge, net of tax		0
Unitholders' capital, value	$ 10,768	$ 29,047
Class A Units | Common Units
Increase (decrease) in Stockholders' Equity:
Unitholders' capital (in shares)	65,310	63,032
Issuance of units (in shares)	6,143	1,333
Cancellation of units associated with forfeitures (in shares)	(81)
Repurchase and cancellation of units (in shares)	(200)	(180)
Unitholders' capital (in shares)	71,172	64,185
Class B Units | Common Units
Increase (decrease) in Stockholders' Equity:
Unitholders' capital (in shares)	90,976	91,758
Issuance of units (in shares)	114	21
Cancellation of units (in shares)		(140)
Repurchase and cancellation of units (in shares)	(5,083)	(71)
Unitholders' capital (in shares)	86,007	91,568

ORGANIZATION AND BASIS OF PRESE

ORGANIZATION AND BASIS OF PRESENTATION	3 Months Ended
	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
ORGANIZATION AND BASIS OF PRESENTATION	ORGANIZATION AND BASIS OF PRESENTATION Oaktree Capital Group, LLC (together with its subsidiaries, “Oaktree” or the “Company”) is a leader among global investment managers specializing in alternative investments. Oaktree emphasizes an opportunistic, value-oriented and risk-controlled approach to investments in credit, private equity, real assets and listed equities. Funds managed by Oaktree (the “Oaktree funds”) include commingled funds, separate accounts, collateralized loan obligation vehicles (“CLOs”) and publicly-traded business development companies (“BDCs”). Commingled funds include open-end and closed-end limited partnerships in which the Company makes an investment and for which it serves as the general partner. CLOs are structured finance vehicles in which the Company typically makes an investment and for which it serves as collateral manager. Oaktree Capital Group, LLC is a Delaware limited liability company that was formed on April 13, 2007. The Company is owned by its Class A and Class B unitholders. Oaktree Capital Group Holdings GP, LLC acts as the Company’s manager and is the general partner of Oaktree Capital Group Holdings, L.P. (“OCGH”), which owns 100% of the Company’s outstanding Class B units. OCGH is owned by the Company’s senior executives, current and former employees, and certain other investors (collectively, the “OCGH unitholders”). The Company’s operations are conducted through a group of operating entities collectively referred to as the “Oaktree Operating Group.” OCGH has a direct economic interest in the Oaktree Operating Group and the Company has an indirect economic interest in the Oaktree Operating Group. The interests in the Oaktree Operating Group are referred to as the “Oaktree Operating Group units.” An Oaktree Operating Group unit is not a separate legal interest but represents one limited partnership interest in each of the Oaktree Operating Group entities. Class A units are entitled to one vote per unit. Class B units are entitled to ten votes per unit and do not represent an economic interest in the Company. The number of Class B units held by OCGH increases or decreases in response to corresponding changes in OCGH’s economic interest in the Oaktree Operating Group; consequently, the OCGH unitholders’ economic interest in the Oaktree Operating Group is reflected within non-controlling interests in consolidated subsidiaries in the accompanying condensed consolidated financial statements. Basis of Presentation The accompanying unaudited condensed consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information. The condensed consolidated financial statements, including these notes, are unaudited and exclude some of the disclosures required in annual financial statements. Management believes it has made all necessary adjustments (consisting of only normal recurring items) such that the condensed consolidated financial statements are presented fairly and that estimates made in preparing its condensed consolidated financial statements are reasonable and prudent. The operating results presented for interim periods are not necessarily indicative of the results that may be expected for any other interim period or for the entire year. The condensed consolidated financial statements include the accounts of the Company, its wholly-owned or majority-owned subsidiaries and entities in which the Company is deemed to have a direct or indirect controlling financial interest based on either a variable interest model or voting interest model. Certain of the Oaktree funds consolidated by the Company are investment companies that follow a specialized basis of accounting established by GAAP. All intercompany transactions and balances have been eliminated in consolidation. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements of the Company for the year ended December 31, 2017 included in the Company’s Annual Report on Form 10-K filed with the U.S. Securities and Exchange Commission (“SEC”) on February 23, 2018.

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Accounting Policies of the Company Consolidation The Company consolidates entities in which it has a direct or indirect controlling financial interest based on either a variable interest model or voting interest model. A limited partnership or similar entity is a variable interest entity (“VIE”) if the unaffiliated limited partners do not have substantive kick-out or participating rights. Most of the Oaktree funds are VIEs because they have not granted unaffiliated limited partners substantive kick-out or participating rights. The Company consolidates those VIEs in which it is the primary beneficiary. An entity is deemed to be the primary beneficiary if it holds a controlling financial interest. A controlling financial interest is defined as (a) the power to direct the activities of a VIE that most significantly impact the entity’s economic performance and (b) the obligation to absorb losses of the entity or the right to receive benefits from the entity that could potentially be significant to the VIE. The consolidation guidance requires an analysis to determine (a) whether an entity in which the Company holds a variable interest is a VIE and (b) whether the Company’s involvement, through holding interests directly or indirectly in the entity or contractually through other variable interests (e.g., management and performance-based fees), would give it a controlling financial interest. A decision maker’s fee arrangement is not considered a variable interest if (a) it is compensation for services provided, commensurate with the level of effort required to provide those services, and part of a compensation arrangement that includes only terms, conditions or amounts that are customarily present in arrangements for similar services negotiated at arm’s length (“at-market”), and (b) the decision maker does not hold any other variable interests that absorb more than an insignificant amount of the potential VIE’s expected residual returns. The Company determines whether it is the primary beneficiary of a VIE at the time it becomes involved with a VIE and reconsiders that conclusion at each reporting date. In evaluating whether the Company is the primary beneficiary, the Company evaluates its economic interests in the entity held either directly by the Company or indirectly through related parties. The consolidation analysis can generally be performed qualitatively; however, if it is not readily apparent that the Company is not the primary beneficiary, a quantitative analysis may also be performed. Investments and redemptions (either by the Company, affiliates of the Company or third parties) or amendments to the governing documents of the respective Oaktree funds could affect an entity’s status as a VIE or the determination of the primary beneficiary. The Company does not consolidate most of the Oaktree funds because it is not the primary beneficiary of those funds due to the fact that its fee arrangements are considered at-market and thus not deemed to be variable interests, and it does not hold any other interests in those funds that are considered to be more than insignificant. Please see note 5 for more information regarding both consolidated and unconsolidated VIEs. For entities that are not VIEs, consolidation is evaluated through a majority voting interest model. “Consolidated funds” refers to Oaktree-managed funds and CLOs that the Company is required to consolidate. When funds or CLOs are consolidated, the Company reflects the assets, liabilities, revenues, expenses and cash flows of the funds or CLOs on a gross basis, and the majority of the economic interests in those funds or CLOs, which are held by third-party investors, are reflected as non-controlling interests in consolidated funds or debt obligations of CLOs in the condensed consolidated financial statements. All of the revenues earned by the Company as investment manager of the consolidated funds are eliminated in consolidation. However, because the eliminated amounts are earned from and funded by third-party investors, the consolidation of a fund does not impact net income or loss attributable to the Company. Certain entities in which the Company has the ability to exert significant influence, including unconsolidated Oaktree funds for which the Company acts as general partner, are accounted for under the equity method of accounting. Non-controlling Redeemable Interests in Consolidated Funds The Company records non-controlling interests to reflect the economic interests of the unaffiliated limited partners. These interests are presented as non-controlling redeemable interests in consolidated funds within the condensed consolidated statements of financial condition, outside of the permanent capital section. Limited partners in open-end and evergreen funds generally have the right to withdraw their capital, subject to the terms of the respective limited partnership agreements, over periods ranging from one month to three years . While limited partners in consolidated closed-end funds generally have not been granted redemption rights, these limited partners do have withdrawal or redemption rights in certain limited circumstances that are beyond the control of the Company, such as instances in which retaining the limited partnership interest could cause the limited partner to violate a law, regulation or rule. The allocation of net income or loss to non-controlling redeemable interests in consolidated funds is based on the relative ownership interests of the unaffiliated limited partners after the consideration of contractual arrangements that govern allocations of income or loss. At the consolidated level, potential incentives are allocated to non-controlling redeemable interests in consolidated funds until such incentives become allocable to the Company under the substantive contractual terms of the limited partnership agreements of the funds. Non-controlling Interests in Consolidated Funds Non-controlling interests in consolidated funds represent the equity interests held by third-party investors in CLOs that had not yet priced as of the respective period end. All non-controlling interests in those CLOs are attributed a share of income or loss arising from the respective CLO based on the relative ownership interests of third-party investors after consideration of contractual arrangements that govern allocations of income or loss. Investors in those CLOs are generally unable to redeem their interests until the respective CLO liquidates, is called or otherwise terminates. Non-controlling Interests in Consolidated Subsidiaries Non-controlling interests in consolidated subsidiaries reflect the portion of unitholders’ capital attributable to OCGH unitholders (“OCGH non-controlling interest”) and third parties. All non-controlling interests in consolidated subsidiaries are attributed a share of income or loss in the respective consolidated subsidiary based on the relative economic interests of the OCGH unitholders or third parties after consideration of contractual arrangements that govern allocations of income or loss. Please see note 13 for more information. Acquisitions The Company accounts for business combinations using the acquisition method of accounting, which requires the use of estimates and judgment to measure the fair value of identifiable tangible and intangible assets acquired, liabilities assumed, and non-controlling interests in the acquiree as of the acquisition date. Contingent consideration that is determined to be part of the business combination is recognized at fair value as of the acquisition date and is included in the purchase price. Transaction costs are expensed as incurred. Transactions that do not meet the definition of a business are accounted for as asset acquisitions. The cost of an asset acquisition is allocated to the individual assets acquired and liabilities assumed on a relative fair value basis. Transaction costs are included in the cost of the acquisition and no goodwill is recognized. Goodwill and Intangibles Goodwill represents the excess of cost over the fair value of identifiable net assets of acquired businesses. Goodwill has an indefinite useful life and is not amortized, but instead is tested for impairment annually in the fourth quarter of each fiscal year, or more frequently when events or circumstances indicate that impairment may have occurred. The Company’s acquired identifiable intangible assets primarily relate to contractual rights to earn future management fees and incentive income. Finite-lived intangible assets are amortized over their estimated useful lives, which range from seven to 25 years, and are reviewed for impairment whenever events or circumstances indicate that the carrying amount of the asset may not be recoverable. Fair Value of Financial Instruments GAAP establishes a hierarchical disclosure framework that prioritizes the inputs used in measuring financial instruments at fair value into three levels based on their market observability. Market price observability is affected by a number of factors, such as the type of instrument and the characteristics specific to the instrument. Financial instruments with readily available quoted prices from an active market or for which fair value can be measured based on actively quoted prices generally will have a higher degree of market price observability and a lesser degree of judgment inherent in measuring fair value. Financial assets and liabilities measured and reported at fair value are classified as follows: • Level I – Quoted unadjusted prices for identical instruments in active markets to which the Company has access at the date of measurement. The types of investments in Level I include exchange-traded equities, debt and derivatives with quoted prices. • Level II – Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs are directly or indirectly observable. Level II inputs include interest rates, yield curves, volatilities, prepayment risks, loss severities, credit risks and default rates. The types of investments in Level II generally include corporate bonds and loans, government and agency securities, less liquid and restricted equity investments, over-the-counter traded derivatives, debt obligations of consolidated CLOs, and other investments where the fair value is based on observable inputs. • Level III – Valuations for which one or more significant inputs are unobservable. These inputs reflect the Company’s assessment of the assumptions that market participants use to value the investment based on the best available information. Level III inputs include prices of quoted securities in markets for which there are few transactions, less public information exists or prices vary among brokered market makers. The types of investments in Level III include non-publicly traded equity, debt, real estate and derivatives. In some instances, the inputs used to value an instrument may fall into multiple levels of the fair-value hierarchy. In such instances, the instrument’s level within the fair-value hierarchy is based on the lowest of the three levels (with Level III being the lowest) that is significant to the fair-value measurement. The Company’s assessment of the significance of an input requires judgment and considers factors specific to the instrument. Transfers of assets into or out of each fair value hierarchy level as a result of changes in the observability of the inputs used in measuring fair value are accounted for as of the beginning of the reporting period. Transfers resulting from a specific event, such as a reorganization or restructuring, are accounted for as of the date of the event that caused the transfer. In the absence of observable market prices, the Company values Level III investments using valuation methodologies applied on a consistent basis. The quarterly valuation process for Level III investments begins with each portfolio company, property or security being valued by the investment and/or valuation teams. With the exception of open-end funds, all unquoted Level III investment values are reviewed and approved by (i) the Company’s valuation officer, who is independent of the investment teams, (ii) a designated investment professional of each strategy and (iii) for a substantial majority of unquoted Level III holdings as measured by market value, a valuation committee of the respective strategy. For open-end funds, unquoted Level III investment values are reviewed and approved by the Company’s valuation officer. For certain investments, the valuation process also includes a review by independent valuation parties, at least annually, to determine whether the fair values determined by management are reasonable. Results of the valuation process are evaluated each quarter, including an assessment of whether the underlying calculations should be adjusted or recalibrated. In connection with this process, the Company periodically evaluates changes in fair-value measurements for reasonableness, considering items such as industry trends, general economic and market conditions, and factors specific to the investment. Certain assets are valued using prices obtained from pricing vendors or brokers. The Company seeks to obtain prices from at least two pricing vendors for the subject or similar securities. In cases where vendor pricing is not reflective of fair value, a secondary vendor is unavailable, or no vendor pricing is available, a comparison value made up of quotes for the subject or similar securities received from broker dealers may be used. These investments may be classified as Level III because the quoted prices may be indicative in nature for securities that are in an inactive market, may be for similar securities, or may require adjustment for investment-specific factors or restrictions. The Company evaluates the prices obtained from brokers or pricing vendors based on available market information, including trading activity of the subject or similar securities, or by performing a comparable security analysis to ensure that fair values are reasonably estimated. The Company also performs back-testing of valuation information obtained from pricing vendors and brokers against actual prices received in transactions. In addition to ongoing monitoring and back-testing, the Company performs due diligence procedures surrounding pricing vendors to understand their methodology and controls to support their use in the valuation process. Fair Value Option The Company has elected the fair value option for certain corporate investments that otherwise would not have reflected unrealized gains and losses in current-period earnings. Such election is irrevocable and is applied on an investment-by-investment basis at initial recognition. Unrealized gains and losses resulting from changes in fair value are reflected as a component of investment income in the condensed consolidated statements of operations. The Company’s accounting for these investments is similar to its accounting for investments held by the consolidated funds at fair value and the valuation methods are consistent with those used to determine the fair value of the consolidated funds’ investments. The Company has elected the fair value option for the financial assets and financial liabilities of its consolidated CLOs. The assets and liabilities of CLOs are primarily reflected within the investments, at fair value and within the debt obligations of CLOs line items in the condensed consolidated statements of financial condition. The Company’s accounting for CLO assets is similar to its accounting for its funds with respect to both carrying investments held by CLOs at fair value and the valuation methods used to determine the fair value of those investments. The fair value of CLO liabilities are measured as the fair value of CLO assets less the sum of (a) the fair value of any beneficial interests held by the Company and (b) the carrying value of any beneficial interests that represent compensation for services. Realized gains or losses and changes in the fair value of CLO assets, respectively, are included in net realized gain on consolidated funds’ investments and net change in unrealized appreciation (depreciation) on consolidated funds’ investments in the condensed consolidated statements of operations. Interest income of CLOs is included in interest and dividend income, and interest expense and other expenses, respectively, are included in interest expense and consolidated fund expenses in the condensed consolidated statements of operations. Changes in the fair value of a CLO’s financial liabilities in accordance with the CLO measurement guidance are included in net change in unrealized appreciation (depreciation) on consolidated funds’ investments in the condensed consolidated statements of operations. Please see notes 7 and 11 for more information. Accounting Policies of Consolidated Funds Investments, at Fair Value The consolidated funds include investment limited partnerships and CLOs that reflect their investments, including majority-owned and controlled investments, at fair value. The Company has retained the specialized investment company accounting guidance under GAAP for investment limited partnerships with respect to consolidated investments and has elected the fair value option for the financial assets of CLOs. Thus, the consolidated investments are reflected in the condensed consolidated statements of financial condition at fair value, with unrealized gains and losses resulting from changes in fair value reflected as a component of net change in unrealized appreciation (depreciation) on consolidated funds’ investments in the condensed consolidated statements of operations. Fair value is the amount 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 (i.e., the exit price). Non-publicly traded debt and equity securities and other securities or instruments for which reliable market quotations are not available are valued by management using valuation methodologies applied on a consistent basis. These securities may initially be valued at the acquisition price as the best indicator of fair value. The Company reviews the significant unobservable inputs, valuations of comparable investments and other similar transactions for investments valued at acquisition price to determine whether another valuation methodology should be utilized. Subsequent valuations will depend on the facts and circumstances known as of the valuation date and the application of valuation methodologies as further described below under “—Non-publicly Traded Equity and Real Estate Investments.” The fair value may also be based on a pending transaction expected to close after the valuation date. Exchange-traded Investments Securities listed on one or more national securities exchanges are valued at their last reported sales price on the date of valuation. If no sale occurred on the valuation date, the security is valued at the mean of the last “bid” and “ask” prices on the valuation date. Securities that are not readily marketable due to legal restrictions that may limit or restrict transferability are generally valued at a discount from quoted market prices. The discount would reflect the amount market participants would require due to the risk relating to the inability to access a public market for the security for the specified period and would vary depending on the nature and duration of the restriction and the perceived risk and volatility of the underlying securities. Securities with longer duration restrictions or higher volatility are generally valued at a higher discount. Such discounts are generally estimated based on put option models or an analysis of market studies. Instances where the Company has applied discounts to quoted prices of restricted listed securities have been infrequent. The impact of such discounts is not material to the Company’s condensed consolidated statements of financial condition and results of operations for all periods presented. Credit-oriented Investments (including Real Estate Loan Portfolios) Investments in corporate and government debt which are not listed or admitted to trading on any securities exchange are valued at the mean of the last bid and ask prices on the valuation date based on quotations supplied by recognized quotation services or by reputable broker-dealers. The market-yield approach is considered in the valuation of non-publicly traded debt securities, utilizing expected future cash flows and discounted using estimated current market rates. Discounted cash-flow calculations may be adjusted to reflect current market conditions and/or the perceived credit risk of the borrower. Consideration is also given to a borrower’s ability to meet principal and interest obligations; this may include an evaluation of collateral and/or the underlying value of the borrower utilizing techniques described below under “—Non-publicly Traded Equity and Real Estate Investments.” Non-publicly Traded Equity and Real Estate Investments The fair value of equity and real estate investments is determined using a cost, market or income approach. The cost approach is based on the current cost of reproducing a real estate investment less deterioration and functional and economic obsolescence. The market approach utilizes valuations of comparable public companies and transactions, and generally seeks to establish the enterprise value of the portfolio company or investment property using a market-multiple methodology. This approach takes into account the financial measure (such as EBITDA, adjusted EBITDA, free cash flow, net operating income, net income, book value or net asset value) believed to be most relevant for the given company or investment property. Consideration also may be given to factors such as acquisition price of the security or investment property, historical and projected operational and financial results for the portfolio company, the strengths and weaknesses of the portfolio company or investment property relative to its comparable companies or properties, industry trends, general economic and market conditions, and others deemed relevant. The income approach is typically a discounted cash-flow method that incorporates expected timing and level of cash flows. It incorporates assumptions in determining growth rates, income and expense projections, discount and capitalization rates, capital structure, terminal values, and other factors. The applicability and weight assigned to market and income approaches are determined based on the availability of reliable projections and comparable companies and transactions. The valuation of securities may be impacted by expectations of investors’ receptiveness to a public offering of the securities, the size of the holding of the securities and any associated control, information with respect to transactions or offers for the securities (including the transaction pursuant to which the investment was made and the elapsed time from the date of the investment to the valuation date), and applicable restrictions on the transferability of the securities. These valuation methodologies involve a significant degree of management judgment. Accordingly, valuations by the Company do not necessarily represent the amounts that eventually may be realized from sales or other dispositions of investments. Fair values may differ from the values that would have been used had a ready market for the investment existed, and the differences could be material to the condensed consolidated financial statements. Recent Accounting Developments In January 2017, the Financial Accounting Standards Board (“FASB”) issued guidance to simplify the accounting for goodwill impairments by eliminating step 2 of the goodwill impairment test. This step currently requires an entity to perform a hypothetical purchase price allocation to derive the implied fair value of goodwill. Under the new guidance, an impairment loss is recognized if the carrying value of a reporting unit exceeds its fair value. The impairment loss would equal the amount of that excess, limited to the total amount of goodwill. All other goodwill impairment guidance remains largely unchanged. Entities will continue to have the option to perform a qualitative assessment to determine if a quantitative impairment test is necessary. The guidance is effective for the Company in the first quarter of 2020 on a prospective basis, with early adoption permitted. The Company expects that adoption of this guidance will not have a material impact on the consolidated financial statements. In August 2016, the FASB issued guidance on the classification of certain cash receipts and payments in the statement of cash flows. The amendments add to or clarify guidance on a number of cash flow issues, including debt prepayment or debt extinguishment costs, contingent consideration payments made after a business combination, distributions received from equity-method investees and beneficial interests in securitization transactions. The Company adopted this guidance in the first quarter of 2018 on a retrospective basis. The impact of adoption was not material to the Company’s consolidated financial statements. In February 2016, the FASB issued guidance that will require a lessee to recognize a lease asset and a lease liability for most of its operating leases. Under current GAAP, operating leases are not recognized by a lessee in its statements of financial position. In general, the new asset and liability will each equal the present value of lease payments. The guidance does not significantly change the recognition, measurement and presentation of expenses and cash flows arising from a lease by a lessee. The Company expects to adopt the guidance in the first quarter of 2019 under the modified retrospective transition approach, which requires application of the new guidance at the beginning of the earliest comparative period presented. The Company does not expect that adoption will have a material impact on the consolidated statements of operations because all of the Company’s leases are currently classified as operating leases, which under the guidance will continue to be recognized as expense on a straight-line basis. The adoption, however, will result in a significant gross-up in total assets and total liabilities on the consolidated statements of financial position. As of March 31, 2018, the Company’s minimum lease payments under lease obligations aggregated $155.0 million . In May 2014, the FASB issued guidance on revenue recognition that superseded most existing revenue recognition guidance, including industry-specific guidance. The guidance outlined a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers, and provides a largely principles-based framework for addressing revenue recognition issues on a comprehensive basis. Under the guidance, revenue is recognized when an entity satisfies a performance obligation by transferring control of a promised good or service to a customer in an amount that reflects the consideration for which the entity expects to be entitled for that good or service. The guidance also requires qualitative and quantitative disclosures about revenue that has been recognized and revenue that is expected to be recognized in the future from existing contracts, significant judgments and changes in those judgments made by management in recognizing revenue, disaggregation of revenue, and information about contract balances. The Company adopted this guidance in the first quarter of 2018 on a modified retrospective basis. The most significant effect of the guidance for the Company relates to the recognition of incentive income. The guidance requires the Company to recognize incentive income when it concludes that it is probable that significant reversals of revenue will not occur in subsequent periods. Under legacy GAAP, the amount of incentive income recognized by the Company was generally limited to the amount not contingent on a future event. Upon adoption, the Company recorded a cumulative-effect increase to unitholders’ capital of $ 48.7 million , net of tax, as of January 1, 2018. This adjustment relates to incentive income that would have met the “probable that significant reversal will not occur” criteria as of that date. In addition, effective January 1, 2018, certain reimbursements received by the Company from the investment funds it manages are reported as revenues on a gross basis with an equal offset to expenses in the consolidated statements of operations. Please see note 4 for more information on revenues.

ACQUISITIONS

ACQUISITIONS	3 Months Ended
	Mar. 31, 2018
Asset Acquisitions [Abstract]
ACQUISITIONS	ACQUISITIONS On October 17, 2017, the Company completed a transaction in which it became the new investment adviser to two business development companies (the “BDCs”): Oaktree Specialty Lending Corporation (NASDAQ: OCSL) and Oaktree Strategic Income Corporation (NASDAQ: OCSI). Upon the closing of the transaction (the “BDC acquisition”), the Company paid $ 320.0 million in cash to Fifth Street Management LLC (“FSM”), net of certain transaction-related expenses, for all of FSM’s right, title and interest in specified business records related to FSM’s then-existing investment advisory agreements with each BDC. The transaction was accounted for as an asset acquisition. The net purchase price was $ 319.4 million , consisting of the $ 320.0 million cash payment, net of certain transaction-related expenses and reimbursements received from the seller. Of the purchase price, $ 319.4 million was allocated to finite-lived contractual rights, $ 56.2 million to indemnification assets and $ 56.2 million to contingent liabilities.

REVENUES

REVENUES	3 Months Ended
	Mar. 31, 2018
Revenue from Contract with Customer [Abstract]
REVENUES	REVENUES On January 1, 2018, the Company adopted the new revenue recognition standard on a modified retrospective basis. As a result, prior period amounts continue to be reported under historic GAAP. Upon adoption, the Company recorded a cumulative-effect increase to unitholders’ capital as of January 1, 2018 of $ 48.7 million , net of tax. This adjustment relates to incentive income that would have met the “probable that significant reversal will not occur” criteria as of January 1, 2018 under the new revenue standard. Revenue Recognition The Company earns management fees and incentive income from the investment advisory services it provides to its customers. Revenue is recognized when control of the promised services is transferred to customers in an amount that reflects the consideration the Company expects to receive in exchange for those services. The Company typically enters into contracts with investment funds to provide investment management and administrative services. These services are generally capable of being distinct and each is accounted for as separate performance obligations comprised of distinct service periods because the services are performed over time. The Company determined that for accounting purposes the investment funds are generally considered to be the customers with respect to commingled funds, while the individual investors are the customers with respect to separate account and fund-of-one vehicles. The Company receives management fees and/or incentive income with respect to its investment management services, and it is reimbursed by the funds for expenses incurred or paid on behalf of the funds with respect to its investment advisory services and its administrative services. The Company evaluates whether it is the principal (i.e., report as management fees on a gross basis) or agent (i.e., report as management fees on a net basis) with respect to each performance obligation and associated reimbursement arrangements. The Company has elected to apply the variable consideration exemption for its fee arrangements with its customers. Management Fees Management fees are recognized over the period in which the investment management services are performed because customers simultaneously consume and receive benefits that are satisfied over time. The contractual terms of management fees generally vary by fund structure. For most closed-end funds, the management fee rate is applied against committed capital during the fund’s investment period and the lesser of total funded capital or cost basis of assets in the liquidation period. Certain closed-end funds pay management fees during the investment period based on drawn capital or cost basis. Additionally, for closed-end funds that pay management fees based on committed capital, the Company may elect to delay the start of the fund’s investment period and thus its full management fees, in which case it earns management fees based on drawn capital, and in certain cases outstanding borrowings under a fund-level credit facility made in lieu of drawing capital, until the Company elects to start the fund’s investment period. In the case of CLOs, the management fee is based on the aggregate par value of collateral assets and principal cash, as defined in the applicable CLO indentures, and a portion of the management fees is dependent on the sufficiency of the particular vehicle’s cash flow. For open-end and evergreen funds, the management fee is generally based on the NAV of the fund. For the publicly-traded BDCs, the management fee is based on gross assets (including assets acquired with leverage), net of cash. In the case of certain open-end fund accounts, the Company has the potential to earn performance-based fees, typically in reference to a relevant benchmark index or hurdle rate, which are classified as management fees. The Company also earns quarterly incentive fees on the investment income from certain evergreen funds, such as the publicly-traded BDCs and other fund accounts, which are generally recurring in nature and reflected as management fees. The ultimate amount of management fees that will be earned over the life of the contract is subject to a large number and broad range of possible outcomes due to market volatility and other factors outside of the Company’s control. However, the amount of revenue earned in any given period is generally determined at the end of each reporting period and relates to services performed during that period. The impact on management fees as a result of applying the new revenue standard was an increase of $ 4.2 million for the three months ended March 31, 2018. This amount relates to the gross-up of reimbursable costs incurred on behalf of Oaktree funds in which the Company has determined it is the principal. Such costs are presented in compensation and benefits and general and administrative expenses. Incentive Income Incentive income generally represents 20% of each closed-end fund’s profits, subject to the return of contributed capital and a preferred return of typically 8% per annum, and up to 20% of certain evergreen fund’s annual profits, subject to high-water marks or hurdle rates. Incentive income is recognized when it is probable that a significant reversal will not occur. Revenue recognition is typically met (a) for closed-end funds, only after all contributed capital and the preferred return on that capital have been distributed to the fund’s investors, and (b) for certain evergreen funds, at the conclusion of each annual measurement period. Potential incentive income is highly susceptible to market volatility, the judgment and actions of third parties, and other factors outside of the Company’s control. The Company’s experience has demonstrated little predictive value in the amount of potential incentive income ultimately earned due to the highly uncertain nature of returns inherent in the markets and contingencies associated with many realization events. As a result, the amount of incentive income recognized in any given period is generally determined after giving consideration to a number of factors, including whether the fund is in its investment or liquidation period, and the nature and level of risk associated with changes in fair value of the remaining assets in the fund. In general, it would be unlikely that any amount of potential incentive income would be recognized until (a) the uncertainty is resolved or (b) the fund is near final liquidation, assets are under contract for sale or are of low risk of significant fluctuation in fair value, and the assets are significantly in excess of the threshold at which incentive income would be earned. The impact on incentive income as a result of applying the new revenue standard was a decrease of $ 47.0 million for the three months ended March 31, 2018. Incentives received by Oaktree before the revenue recognition criteria have been met are deferred and recorded as a deferred incentive income liability within accounts payable, accrued expenses and other liabilities in the condensed consolidated statements of financial condition. The Company may receive tax distributions related to taxable income allocated by funds, which are treated as an advance of incentive income and subject to the same recognition criteria. Tax distributions are contractually not subject to clawback. The following schedule presents revenues disaggregated by fund structure, each of which is affected by economic factors related to the asset class composition of the holdings and the contractual terms such as the basis for calculating the management fees and investors’ ability to redeem: Three Months Ended March 31, 2018 2017 Management Fees Closed-end $ 123,387 $ 127,721 Open-end 37,552 39,945 Evergreen 24,476 13,262 Total $ 185,415 $ 180,928 Incentive Income Closed-end $ 151,906 $ 108,657 Contract Balances The Company receives management fees monthly or quarterly in accordance with its contracts with customers. Incentive income is received when the fund makes a distribution. Contract assets relate to the Company’s conditional right to receive payment for its performance completed under the contract. Receivables are recorded when the right to consideration becomes unconditional (i.e., only requires the passage of time). Contract liabilities (i.e., deferred revenues) relate to payments received in advance of performance under the contract. Contract liabilities are recognized as revenues when the Company provides investment management services. The table below sets forth contract balances for the periods indicated: As of March 31, 2018 December 31, 2017 Receivables (1) $ 62,265 $ 98,738 Contract assets (1) 24,000 54,221 Contract liabilities (2) (23,592 ) (25,297 ) (1) The decline in balances was primarily related to payments received, net of accruals. (2)

VARIABLE INTEREST ENTITIES

VARIABLE INTEREST ENTITIES	3 Months Ended
	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
VARIABLE INTEREST ENTITIES	VARIABLE INTEREST ENTITIES The Company consolidates VIEs for which it is the primary beneficiary. VIEs include funds managed by Oaktree and CLOs for which Oaktree acts as collateral manager. The purpose of these VIEs is to provide investment opportunities for investors in exchange for management fees and, in certain cases, performance-based fees. While the investment strategies of the funds and CLOs differ by product, in general the fundamental risks of the funds and CLOs have similar characteristics, including loss of invested capital and reduction or absence of management and performance-based fees. As general partner or collateral manager, respectively, Oaktree generally considers itself the sponsor of the applicable fund or CLO. The Company does not provide performance guarantees and, other than capital commitments, has no financial obligation to provide funding to VIEs. Consolidated VIEs As of March 31, 2018, the Company consolidated 20 VIEs for which it was the primary beneficiary, including 11 funds managed by Oaktree, eight CLOs for which Oaktree serves as collateral manager, and Oaktree AIF Holdings, Inc., which was formed to hold certain assets for regulatory and other purposes. Two of the consolidated funds, Oaktree Enhanced Income Retention Holdings III, LLC and Oaktree CLO RR Holder, LLC, were formed to satisfy risk retention requirements under Section 15G of the Exchange Act. One of the CLOs had not priced as of March 31, 2018. As of December 31, 2017, the Company consolidated 21 VIEs. As of March 31, 2018, the assets and liabilities of the 19 consolidated VIEs representing funds and CLOs amounted to $6.0 billion and $4.7 billion , respectively. The assets of these consolidated VIEs primarily consisted of investments in debt and equity securities, while their liabilities primarily represented debt obligations issued by CLOs. The assets of these VIEs may be used only to settle obligations of the same VIE. In addition, there is no recourse to the Company for the VIEs’ liabilities. In exchange for managing either the funds’ or CLOs’ collateral, the Company typically earns management fees and may earn performance fees, all of which are eliminated in consolidation. As of March 31, 2018, the Company’s investments in consolidated VIEs had a carrying value of $485.1 million , which represented its maximum risk of loss as of that date. The Company’s investments in CLOs are generally subordinated to other interests in the CLOs and entitle the Company to receive a pro-rata portion of the residual cash flows, if any, from the CLOs. Please see note 11 for more information on CLO debt obligations. Unconsolidated VIEs The Company holds variable interests in certain VIEs in the form of direct equity interests that are not consolidated because it is not the primary beneficiary, inasmuch as its fee arrangements are considered at-market and it does not hold interests in those entities that are considered more than insignificant. The carrying value of the Company’s investments in VIEs that were not consolidated are shown below. Carrying Value as of March 31, 2018 December 31, 2017 Corporate investments $ 911,132 $ 930,699 Due from affiliates 87,482 160,257 Maximum exposure to loss $ 998,614 $ 1,090,956

INVESTMENTS

INVESTMENTS	3 Months Ended
	Mar. 31, 2018
Investments [Abstract]
INVESTMENTS	INVESTMENTS Corporate Investments Corporate investments consist of investments in funds and companies in which the Company does not have a controlling financial interest. Investments for which the Company is deemed to exert significant influence are accounted for under the equity method of accounting and reflect Oaktree’s ownership interest in each fund or company. In the case of investments for which the Company is not deemed to exert significant influence or control, the fair value option of accounting has been elected. Investment income represents the Company’s pro-rata share of income or loss from these funds or companies, or the change in fair value of the investment, as applicable. Oaktree’s general partnership interests are substantially illiquid. While investments in funds reflect each respective fund’s holdings at fair value, equity-method investments in DoubleLine Capital LP and its affiliates (collectively, “DoubleLine”) and other companies are not adjusted to reflect the fair value of the underlying company. The fair value of the underlying investments in Oaktree funds is based on the Company’s assessment, which takes into account expected cash flows, earnings multiples and/or comparisons to similar market transactions, among other factors. Valuation adjustments reflecting consideration of credit quality, concentration risk, sales restrictions and other liquidity factors are integral to valuing these instruments. Corporate investments consisted of the following: As of Corporate Investments March 31, 2018 December 31, 2017 Equity-method investments: Funds $ 910,479 $ 916,559 Companies 35,345 42,294 Other investments, at fair value 56,377 50,778 Total corporate investments $ 1,002,201 $ 1,009,631 The components of investment income are set forth below: Three Months Ended March 31, Investment Income 2018 2017 Equity-method investments: Funds $ 27,266 $ 32,921 Companies 18,138 15,894 Other investments, at fair value (10,841 ) 1,636 Total investment income $ 34,563 $ 50,451 Equity-method Investments The Company’s equity-method investments include its investments in Oaktree funds for which it serves as general partner and other third-party funds and companies that are not consolidated but for which the Company is deemed to exert significant influence. The Company’s share of income or loss generated by these investments is recorded within investment income in the condensed consolidated statements of operations. The Company’s equity-method investments in Oaktree funds principally reflect the Company’s general partner interests in those funds, which typically does not exceed 2.5% in each fund. The Oaktree funds are investment companies that follow a specialized basis of accounting established by GAAP. Equity-method investments in companies include the Company’s one-fifth equity stake in DoubleLine. Each reporting period, the Company evaluates each of its equity-method investments to determine if any are considered significant, as defined by the SEC. As of or for the year ended December 31, 2017, no individual equity-method investment met the significance criteria. As a result, separate financial statements were not required for any of the Company’s equity-method investments. Summarized financial information of the Company’s equity-method investments is set forth below. As of Statements of Financial Condition March 31, 2018 December 31, 2017 Assets: Cash and cash-equivalents $ 2,495,772 $ 2,654,311 Investments, at fair value 41,915,841 41,754,054 Other assets 2,051,923 2,116,751 Total assets $ 46,463,536 $ 46,525,116 Liabilities and Capital: Debt obligations $ 8,064,952 $ 8,393,314 Other liabilities 2,184,074 2,264,579 Total liabilities 10,249,026 10,657,893 Total capital 36,214,510 35,867,223 Total liabilities and capital $ 46,463,536 $ 46,525,116 Three Months Ended March 31, Statements of Operations 2018 2017 Revenues / investment income $ 477,491 $ 520,610 Interest expense (67,230 ) (47,014 ) Other expenses (201,436 ) (211,158 ) Net realized and unrealized gain on investments 530,361 924,551 Net income $ 739,186 $ 1,186,989 Other Investments, at Fair Value Other investments, at fair value primarily consist of (a) investments in certain Oaktree and non-Oaktree funds for which the fair value option of accounting has been elected and (b) derivatives utilized to hedge the Company’s exposure to investment income earned from its funds. The following table summarizes net gains (losses) attributable to the Company’s other investments: Three Months Ended March 31, 2018 2017 Realized gain (loss) $ 796 $ 1,496 Net change in unrealized gain (loss) (11,637 ) 140 Total gain (loss) $ (10,841 ) $ 1,636 Investments of Consolidated Funds Investments, at Fair Value Investments held and securities sold short by the consolidated funds are summarized below: Fair Value as of Fair Value as a Percentage of Investments of Consolidated Funds as of Investments March 31, 2018 December 31, 2017 March 31, 2018 December 31, 2017 United States: Debt securities: Consumer discretionary $ 796,820 $ 796,681 13.9 % 14.0 % Consumer staples 114,094 100,863 2.0 1.8 Energy 126,046 106,414 2.2 1.9 Financials 153,572 161,807 2.7 2.9 Government 1,534 3,033 0.0 0.1 Health care 400,027 416,779 7.0 7.4 Industrials 415,020 441,440 7.3 7.8 Information technology 474,554 431,010 8.3 7.6 Materials 364,346 384,310 6.4 6.8 Real estate 131,746 146,836 2.3 2.6 Telecommunication services 161,496 178,984 2.8 3.2 Utilities 95,167 117,805 1.7 2.1 Total debt securities (cost: $3,210,058 and $3,284,346 as of March 31, 2018 and December 31, 2017, respectively) 3,234,422 3,285,962 56.6 58.2 Equity securities: Consumer discretionary 1,397 1,778 0.1 0.0 Energy 554 649 0.0 0.0 Financials 725 3,061 0.0 0.1 Health care 1,364 527 0.0 0.0 Industrials 175 316 0.0 0.0 Telecommunication services — 305 — 0.0 Utilities 1,107 1,192 0.0 0.0 Total equity securities (cost: $6,199 and $8,102 as of March 31, 2018 and December 31, 2017, respectively) 5,322 7,828 0.1 0.1 Real estate: Real estate — 121,588 — 2.1 Total real estate securities (cost: $0 and $121,582 as of March 31, 2018 and December 31, 2017, respectively) — 121,588 — 2.1 Fair Value as of Fair Value as a Percentage of Investments of Consolidated Funds as of Investments March 31, 2018 December 31, 2017 March 31, 2018 December 31, 2017 Europe: Debt securities: Consumer discretionary $ 659,689 $ 573,270 11.5 % 10.1 % Consumer staples 155,063 121,636 2.7 2.1 Energy 8,919 5,929 0.2 0.1 Financials 40,008 40,130 0.7 0.7 Health care 368,119 333,693 6.4 5.9 Industrials 194,467 163,972 3.4 2.9 Information technology 121,296 95,409 2.1 1.7 Materials 279,123 267,252 4.9 4.7 Real estate 13,562 12,528 0.2 0.2 Telecommunication services 285,254 278,358 5.0 4.9 Utilities 3,014 8,949 0.1 0.2 Total debt securities (cost: $2,130,240 and $1,894,727 as of March 31, 2018 and December 31, 2017, respectively) 2,128,514 1,901,126 37.2 33.5 Equity securities: Consumer staples 1,057 1,449 0.0 0.0 Energy 4,377 3,827 0.1 0.1 Financials 5,536 7,410 0.1 0.1 Health care 858 601 0.0 0.0 Materials 1,089 1,622 0.0 0.0 Total equity securities (cost: $9,632 and $12,787 as of March 31, 2018 and December 31, 2017, respectively) 12,917 14,909 0.2 0.2 Asia and other: Debt securities: Consumer discretionary 16,020 30,332 0.3 0.5 Consumer staples 3,850 748 0.1 0.0 Energy 9,635 10,175 0.2 0.2 Financials 31,607 20,362 0.5 0.4 Health care 6,337 13,806 0.1 0.2 Industrials 42,317 22,935 0.7 0.4 Information technology 233 536 0.0 0.0 Materials 10,622 8,515 0.2 0.2 Real estate 6,270 6,272 0.1 0.1 Telecommunication services 15,543 8,104 0.3 0.1 Utilities 1,057 769 0.0 0.0 Total debt securities (cost: $145,078 and $124,723 as of March 31, 2018 and December 31, 2017, respectively) 143,491 122,554 2.5 2.1 Fair Value as of Fair Value as a Percentage of Investments of Consolidated Funds as of Investments March 31, 2018 December 31, 2017 March 31, 2018 December 31, 2017 Asia and other: Equity securities: Consumer discretionary $ 22,577 $ 29,026 0.4 % 0.5 % Consumer staples 9,462 7,279 0.2 0.1 Energy 6,670 5,551 0.1 0.1 Financials 56,818 58,632 1.1 1.2 Industrials 31,445 34,019 0.6 0.7 Information technology 19,897 23,900 0.3 0.4 Materials 18,923 28,590 0.3 0.5 Real estate 17,303 15,339 0.3 0.3 Telecommunication services 2,148 1,735 0.0 0.0 Utilities 7,739 2,502 0.1 0.0 Total equity securities (cost: $189,517 and $185,164 as of March 31, 2018 and December 31, 2017, respectively) 192,982 206,573 3.4 3.8 Total debt securities 5,506,427 5,309,642 96.3 93.8 Total equity securities 211,221 229,310 3.7 4.1 Total real estate securities — 121,588 — 2.1 Total investments, at fair value $ 5,717,648 $ 5,660,540 100.0 % 100.0 % Securities Sold Short Equity securities (proceeds: $66,783 and $82,502 as of March 31, 2018 and December 31, 2017, respectively) $ (69,808 ) $ (86,467 ) As of March 31, 2018 and December 31, 2017, no single issuer or investment had a fair value that exceeded 5% of Oaktree’s total consolidated net assets. Net Gains (Losses) From Investment Activities of Consolidated Funds Net gains (losses) from investment activities in the condensed consolidated statements of operations consist primarily of realized and unrealized gains and losses on the consolidated funds’ investments (including foreign-exchange gains and losses attributable to foreign-denominated investments and related activities) and other financial instruments. Unrealized gains or losses result from changes in the fair value of these investments and other financial instruments. Upon disposition of an investment, unrealized gains or losses are reversed and an offsetting realized gain or loss is recognized in the current period. The following table summarizes net gains (losses) from investment activities: Three Months Ended March 31, 2018 2017 Net Realized Gain (Loss) on Investments Net Change in Unrealized Appreciation (Depreciation) on Investments Net Realized Gain (Loss) on Investments Net Change in Unrealized Appreciation (Depreciation) on Investments Investments and other financial instruments $ 11,322 $ (30,588 ) $ 739 $ 3,736 CLO liabilities (1) — 18,072 — 19,831 Foreign-currency forward contracts (2) 1,439 (711 ) 179 (314 ) Total-return and interest-rate swaps (2) 20 (86 ) (746 ) 1,235 Options and futures (2) 1,818 (1,073 ) (2,044 ) 190 Total $ 14,599 $ (14,386 ) $ (1,872 ) $ 24,678 (1) Represents the net change in the fair value of CLO liabilities based on the more observable fair value of CLO assets, as measured under the CLO measurement guidance. Please see note 2 for more information. (2) Please see note 8 for additional information.

FAIR VALUE

FAIR VALUE	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
FAIR VALUE	FAIR VALUE Fair Value of Financial Assets and Liabilities The short-term nature of cash and cash-equivalents, receivables and accounts payable causes each of their carrying values to approximate fair value. The fair value of short-term investments included in cash and cash-equivalents is a Level I valuation. The Company’s other financial assets and financial liabilities by fair-value hierarchy level are set forth below. Please see notes 11 and 18 for the fair value of the Company’s outstanding debt obligations and amounts due from/to affiliates, respectively. As of March 31, 2018 As of December 31, 2017 Level I Level II Level III Total Level I Level II Level III Total Assets U.S. Treasury and other securities (1) $ 229,274 $ — $ — $ 229,274 $ 176,602 $ — $ — $ 176,602 Corporate investments — 4,255 53,095 57,350 — 1,833 50,902 52,735 Foreign-currency forward contracts (2) — 8,659 — 8,659 — 5,020 — 5,020 Total assets $ 229,274 $ 12,914 $ 53,095 $ 295,283 $ 176,602 $ 6,853 $ 50,902 $ 234,357 Liabilities Contingent consideration (3) $ — $ — $ (16,203 ) $ (16,203 ) $ — $ — $ (18,778 ) $ (18,778 ) Foreign-currency forward contracts (4) — (15,153 ) — (15,153 ) — (13,154 ) — (13,154 ) Cross-currency swap (3) — (19,768 ) — (19,768 ) — (7,479 ) — (7,479 ) Total liabilities $ — $ (34,921 ) $ (16,203 ) $ (51,124 ) $ — $ (20,633 ) $ (18,778 ) $ (39,411 ) (1) Carrying value approximates fair value due to the short-term nature. (2) Amounts are included in other assets in the condensed consolidated statements of financial condition. (3) Amounts are included in accounts payable, accrued expenses and other liabilities in the condensed consolidated statements of financial condition. (4) Amounts are included in accounts payable, accrued expenses and other liabilities in the condensed consolidated statements of financial condition, except for $973 and $1,957 as of March 31, 2018 and December 31, 2017, respectively, which are included within corporate investments in the condensed consolidated statements of financial condition. There were no transfers between Level I and Level II positions for the three months ended March 31, 2018 and 2017. The table below sets forth a summary of changes in the fair value of Level III financial instruments: Three Months Ended March 31, 2018 2017 Corporate Investments Contingent Consideration Liability Corporate Investments Contingent Consideration Liability Beginning balance $ 50,902 $ (18,778 ) $ 74,663 $ (23,567 ) Contributions or additions 1,293 — 156 — Distributions (815 ) — (3,135 ) — Net gain (loss) included in earnings 1,715 2,575 3,757 (601 ) Ending balance $ 53,095 $ (16,203 ) $ 75,441 $ (24,168 ) Net change in unrealized gains (losses) attributable to financial instruments still held at end of period $ 919 $ 2,575 $ 2,261 $ (601 ) The table below sets forth a summary of the valuation techniques and quantitative information utilized in determining the fair value of the Company’s Level III financial instruments: Fair Value as of Significant Unobservable Input Financial Instrument March 31, 2018 December 31, 2017 Valuation Technique Range Weighted Average Corporate investment – Limited partnership interests $ 53,095 $ 50,902 Market approach Not applicable Not applicable Not applicable Contingent consideration liability (16,203 ) (18,778 ) Discounted cash flow Assumed % of total potential contingent payments 0% – 100% 34% Fair Value of Financial Instruments Held By Consolidated Funds The short-term nature of cash and cash-equivalents held at the consolidated funds causes their carrying value to approximate fair value. The fair value of cash-equivalents is a Level I valuation. Derivatives may relate to a mix of Level I, II or III investments, and therefore their fair-value hierarchy level may not correspond to the fair-value hierarchy level of the economically hedged investment. The table below summarizes the investments and other financial instruments of the consolidated funds by fair-value hierarchy level: As of March 31, 2018 As of December 31, 2017 Level I Level II Level III Total Level I Level II Level III Total Assets Investments: Corporate debt – bank debt $ — $ 4,570,896 $ 94,495 $ 4,665,391 $ — $ 4,340,860 $ 86,999 $ 4,427,859 Corporate debt – all other 1,158 752,477 87,401 841,036 736 805,659 75,388 881,783 Equities – common stock 206,139 34 3,703 209,876 222,439 65 3,427 225,931 Equities – preferred stock 645 89 611 1,345 3,041 338 — 3,379 Real estate — — — — — — 121,588 121,588 Total investments 207,942 5,323,496 186,210 5,717,648 226,216 5,146,922 287,402 5,660,540 Derivatives: Foreign-currency forward contracts — 227 — 227 — 590 — 590 Swaps — 30 — 30 — 49 — 49 Options and futures 89 — — 89 92 — — 92 Total derivatives 89 257 — 346 92 639 — 731 Total assets $ 208,031 $ 5,323,753 $ 186,210 $ 5,717,994 $ 226,308 $ 5,147,561 $ 287,402 $ 5,661,271 Liabilities CLO debt obligations: Senior secured notes (1) $ — $ (3,203,723 ) $ — $ (3,203,723 ) $ — $ (3,107,955 ) $ — $ (3,107,955 ) Subordinated notes (1) — (115,146 ) — (115,146 ) — (111,637 ) — (111,637 ) Total CLO debt obligations — (3,318,869 ) — (3,318,869 ) — (3,219,592 ) — (3,219,592 ) Securities sold short: Equity securities (69,808 ) — — (69,808 ) (86,467 ) — — (86,467 ) Derivatives: Foreign-currency forward contracts — (911 ) — (911 ) — (817 ) — (817 ) Swaps — (203 ) — (203 ) — (136 ) — (136 ) Options and futures (1,077 ) — — (1,077 ) — — — — Total derivatives (1,077 ) (1,114 ) — (2,191 ) — (953 ) — (953 ) Total liabilities $ (70,885 ) $ (3,319,983 ) $ — $ (3,390,868 ) $ (86,467 ) $ (3,220,545 ) $ — $ (3,307,012 ) (1) The fair value of CLO liabilities is classified based on the more observable fair value of CLO assets. Please see notes 2 and 11 for more information. The following tables set forth a summary of changes in the fair value of Level III investments: Corporate Debt – Bank Debt Corporate Debt – All Other Equities – Common Stock Equities – Preferred Stock Real Estate Total Three Months Ended March 31, 2018 Beginning balance $ 86,999 $ 75,388 $ 3,427 $ — $ 121,588 $ 287,402 Deconsolidation of funds — — — — (121,087 ) (121,087 ) Transfers into Level III 25,164 607 490 — — 26,261 Transfers out of Level III (7,289 ) (490 ) (57 ) — — (7,836 ) Purchases 4,816 31,123 56 236 — 36,231 Sales (17,472 ) (19,110 ) (311 ) — (501 ) (37,394 ) Realized gains (losses), net 328 86 — — — 414 Unrealized appreciation (depreciation), net 1,949 (203 ) 98 375 — 2,219 Ending balance $ 94,495 $ 87,401 $ 3,703 $ 611 $ — $ 186,210 Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period $ 1,965 $ (185 ) $ 96 $ 375 $ — $ 2,251 Three Months Ended March 31, 2017 Beginning balance $ 208,868 $ 28,793 $ 6,693 $ — $ — $ 244,354 Transfers into Level III 19,844 — — — — 19,844 Transfers out of Level III (41,469 ) — — — — (41,469 ) Purchases 15,008 16,199 — — — 31,207 Sales (24,134 ) (6,416 ) (116 ) — — (30,666 ) Realized gains (losses), net 104 195 87 — — 386 Unrealized appreciation (depreciation), net 859 162 (19 ) — — 1,002 Ending balance $ 179,080 $ 38,933 $ 6,645 $ — $ — $ 224,658 Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period $ 447 $ 162 $ (19 ) $ — $ — $ 590 Total realized and unrealized gains and losses recorded for Level III investments are included in net realized gain on consolidated funds’ investments or net change in unrealized appreciation (depreciation) on consolidated funds’ investments in the condensed consolidated statements of operations. Transfers between Level I and Level II positions for the three months ended March 31, 2018 included $ 0.7 million from Level I to Level II due to a decline in trading activity for one credit-oriented security, which was valued using vendor prices. Transfers between Level I and Level II positions for the three months ended March 31, 2017 included $0.4 million from Level I to Level II due to a decline in trading activity for one credit-oriented security, which was valued using broker quotes. Transfers out of Level III are generally attributable to certain investments that experienced a more significant level of market trading activity or completed an initial public offering during the respective period and thus were valued using observable inputs. Transfers into Level III typically reflect either investments that experienced a less significant level of market trading activity during the period or portfolio companies that undertook restructurings or bankruptcy proceedings and thus were valued in the absence of observable inputs. The following table sets forth a summary of the valuation techniques and quantitative information utilized in determining the fair value of the consolidated funds’ Level III investments as of March 31, 2018: Investment Type Fair Value Valuation Technique Significant Unobservable (1)(2) Range Weighted Average (3) Credit-oriented investments: Consumer $ 1,819 Discounted cash flow (4) Discount rate 11% – 20% 17% 18,085 Recent market information (5) Quoted prices Not applicable Not applicable 6,201 Recent transaction price (8) Not applicable Not applicable Not applicable Financials: 66,963 Recent market information (5) Quoted prices Not applicable Not applicable Industrials: 7,173 Discounted cash flow (4) Discount rate 6% – 11% 9% 11,842 Recent market information (5) Quoted prices Not applicable Not applicable Information 5,421 Discounted cash flow (4) Discount rate 12% – 13% 13% 10,574 Recent market information (5) Quoted prices Not applicable Not applicable Real estate: 2,764 Discounted cash flow (4) Discount rate 11% – 13% 12% 21,477 Recent market information (5) Quoted prices Not applicable Not applicable Other: 11,683 Discounted cash flow (4) Discount rate 8% – 16% 13% 17,894 Recent market information (5) Quoted prices Not applicable Not applicable Equity investments: 1,253 Discounted cash flow (4) Discount rate 9% – 30% 11% 1,386 Market approach (6) Earnings multiple (7) 4x – 10x 8x 1,675 Recent market information (5) Quoted prices Not applicable Not applicable Total Level III $ 186,210 The following table sets forth a summary of the valuation techniques and quantitative information utilized in determining the fair value of the consolidated funds’ Level III investments as of December 31, 2017: Investment Type Fair Value Valuation Technique Significant Unobservable (1)(2) Range Weighted Average (3) Credit-oriented investments: Financials: $ 53,732 Recent market information (5) Quoted prices Not applicable Not applicable Industrials: 14,563 Discounted cash flow (4) Discount rate 6% – 11% 7% 3,782 Recent market information (5) Quoted prices Not applicable Not applicable Information 5,331 Discounted cash flow (4) Discount rate 11% – 13% 12% 13,965 Recent market information (5) Quoted prices Not applicable Not applicable Real estate: 2,897 Discounted cash flow (4) Discount rate 11% – 13% 12% 22,297 Recent market information (5) Quoted prices Not applicable Not applicable 327 Recent transaction price (8) Not applicable Not applicable Not applicable Other: 15,881 Discounted cash flow (4) Discount rate 8% – 20% 12% 660 Market approach (6) Earnings multiple (7) 8x – 10x 9x 29,452 Recent market information (5) Quoted prices Not applicable Not applicable Equity investments: 378 Market approach (6) Earnings multiple (7) 9x – 11x 10x 1,343 Discounted cash flow (4) Discount rate 11% – 30% 13% 1,707 Recent market information (5) Quoted prices Not applicable Not applicable Real estate investments: Real estate: 121,087 Recent transaction price (8) Not applicable Not applicable Not applicable Total Level III $ 287,402 (1) The discount rate is the significant unobservable input used in the fair-value measurement of performing credit-oriented investments in which the consolidated funds do not have a controlling interest in the underlying issuer, as well as certain equity investments and real estate loan portfolios. An increase (decrease) in the discount rate would result in a lower (higher) fair-value measurement. (2) Multiple of either earnings or underlying assets is the significant unobservable input used in the market approach for the fair-value measurement of distressed credit-oriented investments, credit-oriented investments in which the consolidated funds have a controlling interest in the underlying issuer, equity investments and certain real estate-oriented investments. An increase (decrease) in the multiple would result in a higher (lower) fair-value measurement. (3) The weighted average is based on the fair value of the investments included in the range. (4) A discounted cash-flow method is generally used to value performing credit-oriented investments in which the consolidated funds do not have a controlling interest in the underlying issuer, as well as certain equity investments, real estate-oriented investments and real estate loan portfolios. (5) Certain investments are valued using vendor prices or broker quotes for the subject or similar securities. Generally, investments valued in this manner are classified as Level III because the quoted prices may be indicative in nature for securities that are in an inactive market, may be for similar securities, or may require adjustment for investment-specific factors or restrictions. (6) A market approach is generally used to value distressed investments and investments in which the consolidated funds have a controlling interest in the underlying issuer. (7) Earnings multiples are based on comparable public companies and transactions with comparable companies. The Company typically utilizes multiples of EBITDA; however, in certain cases the Company may use other earnings multiples believed to be most relevant to the investment. The Company typically applies the multiple to trailing twelve-months’ EBITDA. However, in certain cases other earnings measures, such as pro forma EBITDA, may be utilized if deemed to be more relevant. (8) Certain investments are valued based on recent transactions, generally defined as investments purchased or sold within six months of the valuation date. The fair value may also be based on a pending transaction expected to close after the valuation date. A significant amount of judgment may be required when using unobservable inputs, including assessing the accuracy of source data and the results of pricing models. The Company assesses the accuracy and reliability of the sources it uses to develop unobservable inputs. These sources may include third-party vendors that the Company believes are reliable and commonly utilized by other marketplace participants. As described in note 2, other factors beyond the unobservable inputs described above may have a significant impact on investment valuations. During the three months ended March 31, 2018 and 2017, there were no changes in the valuation techniques for Level III securities.

DERIVATIVES AND HEDGING

DERIVATIVES AND HEDGING	3 Months Ended
	Mar. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVES AND HEDGING	DERIVATIVES AND HEDGING The Company enters into derivatives as part of its overall risk management strategy or to facilitate its investment management activities. Risks associated with fluctuations in interest rates and foreign-currency exchange rates in the normal course of business are addressed as part of the Company’s overall risk management strategy that may include the use of derivatives to economically hedge or reduce these exposures. From time to time, the Company may enter into (a) foreign-currency option and forward contracts to reduce earnings and cash-flow volatility associated with changes in foreign-currency exchange rates, and (b) interest-rate swaps to manage all or a portion of the interest-rate risk associated with its variable-rate borrowings. As a result of the use of these or other derivative contracts, the Company is exposed to the risk that counterparties will fail to fulfill their contractual obligations. The Company attempts to mitigate this counterparty risk by entering into derivative contracts only with major financial institutions that have investment-grade credit ratings. Counterparty credit risk is evaluated in determining the fair value of derivatives. When the Company enters into a derivative contract, it may elect to designate the derivative as a hedging instrument and apply hedge accounting as part of its overall risk management strategy. In other situations, when a derivative does not qualify for hedge accounting or when the derivative and the hedged item are both recorded in current-period earnings and thus deemed to be economic hedges, hedge accounting is not applied. Freestanding derivatives are financial instruments that the Company enters into as part of its overall risk management strategy but does not utilize hedge accounting. These financial instruments may include foreign-currency exchange contracts, interest-rate swaps and other derivative contracts. There were no derivatives outstanding that were designated as hedging instruments for accounting purposes as of March 31, 2018 and December 31, 2017. The fair value of freestanding derivatives consisted of the following: Assets Liabilities Notional Fair Value Notional Fair Value As of March 31, 2018 Foreign-currency forward contracts $ 220,186 $ 8,659 $ (254,708 ) $ (15,153 ) Cross-currency swap — — (261,548 ) (19,768 ) Total $ 220,186 $ 8,659 $ (516,256 ) $ (34,921 ) As of December 31, 2017 Foreign-currency forward contracts $ 288,451 $ 5,020 $ (242,972 ) $ (13,154 ) Cross-currency swap — — (255,210 ) (7,479 ) Total $ 288,451 $ 5,020 $ (498,182 ) $ (20,633 ) Realized and unrealized gains and losses arising from freestanding derivatives were recorded in the condensed consolidated statements of operations as follows: Three Months Ended March 31, 2018 2017 Investment income $ (12,373 ) $ (873 ) General and administrative expense (1) (3,072 ) (2,683 ) Total $ (15,445 ) $ (3,556 ) (1) To the extent that the Company’s freestanding derivatives are utilized to hedge its foreign-currency exposure to investment income and management fees earned from consolidated funds, the related hedged items are eliminated in consolidation, with the derivative impact (a positive number reflects a reduction in expenses) reflected in consolidated general and administrative expense. Derivatives Held By Consolidated Funds Certain consolidated funds utilize derivatives in their ongoing investment operations. These derivatives primarily consist of foreign-currency forward contracts and options utilized to manage currency risk, interest-rate swaps to hedge interest-rate risk, options and futures used to hedge certain exposures for specific securities, and total-return swaps utilized mainly to obtain exposure to leveraged loans or to participate in foreign markets not readily accessible. The primary risk exposure for options and futures is price, while the primary risk exposure for total-return swaps is credit. None of the derivative instruments are accounted for as a hedging instrument utilizing hedge accounting. Three Months Ended March 31, 2018 2017 Net Realized Gain (Loss) on Investments Net Change in Unrealized Appreciation (Depreciation) on Investments Net Realized Gain (Loss) on Investments Net Change in Unrealized Appreciation (Depreciation) on Investments Foreign-currency forward contracts 1,439 (711 ) 179 (314 ) Total-return and interest-rate swaps 20 (86 ) (746 ) 1,235 Options and futures 1,818 (1,073 ) (2,044 ) 190 Total $ 3,277 $ (1,870 ) $ (2,611 ) $ 1,111 Balance Sheet Offsetting The Company recognizes all derivatives as assets or liabilities at fair value in its condensed consolidated statements of financial condition. In connection with its derivative activities, the Company generally enters into agreements subject to enforceable master netting arrangements that allow the Company to offset derivative assets and liabilities in the same currency by specific derivative type or, in the event of default by the counterparty, to offset derivative assets and liabilities with the same counterparty. While these derivatives are eligible to be offset in accordance with applicable accounting guidance, the Company has elected to present derivative assets and liabilities based on gross fair value in its condensed consolidated statements of financial condition. The table below sets forth the setoff rights and related arrangements associated with derivatives held by the Company. The “gross amounts not offset in statements of financial condition” columns represent derivatives that management has elected not to offset in the consolidated statements of financial condition even though they are eligible to be offset in accordance with applicable accounting guidance. Gross and Net Amounts of Assets (Liabilities) Presented Gross Amounts Not Offset in Statements of Financial Condition Net Amount As of March 31, 2018 Derivative Assets (Liabilities) Cash Collateral Received (Pledged) Derivative Assets: Foreign-currency forward contracts $ 8,659 $ 8,659 $ — $ — Derivative assets of consolidated funds: Foreign-currency forward contracts 227 111 — 116 Total-return and interest-rate swaps 30 30 — — Options and futures 89 — — 89 Subtotal 346 141 — 205 Total $ 9,005 $ 8,800 $ — $ 205 Derivative Liabilities: Foreign-currency forward contracts $ (15,153 ) $ (8,659 ) $ — $ (6,494 ) Cross-currency swap (19,768 ) — — (19,768 ) Subtotal (34,921 ) (8,659 ) — (26,262 ) Derivative liabilities of consolidated funds: Foreign-currency forward contracts (911 ) (111 ) — (800 ) Total-return and interest-rate swaps (203 ) (30 ) — (173 ) Options and futures (1,077 ) — (1,077 ) — Subtotal (2,191 ) (141 ) (1,077 ) (973 ) Total $ (37,112 ) $ (8,800 ) $ (1,077 ) $ (27,235 ) Gross and Net Amounts of Assets (Liabilities) Presented Gross Amounts Not Offset in Statements of Financial Condition Net Amount As of December 31, 2017 Derivative Assets (Liabilities) Cash Collateral Received (Pledged) Derivative Assets: Foreign-currency forward contracts $ 5,020 $ 5,020 $ — $ — Derivative assets of consolidated funds: Foreign-currency forward contracts 590 115 — 475 Total-return and interest-rate swaps 49 49 — — Options and futures 92 — — 92 Subtotal 731 164 — 567 Total $ 5,751 $ 5,184 $ — $ 567 Derivative Liabilities: Foreign-currency forward contracts $ (13,154 ) $ (5,020 ) $ — $ (8,134 ) Cross-currency swap (7,479 ) — — (7,479 ) Subtotal (20,633 ) (5,020 ) — (15,613 ) Derivative liabilities of consolidated funds: Foreign-currency forward contracts (817 ) (115 ) — (702 ) Total-return and interest-rate swaps (136 ) (49 ) (87 ) — Subtotal (953 ) (164 ) (87 ) (702 ) Total $ (21,586 ) $ (5,184 ) $ (87 ) $ (16,315 )

FIXED ASSETS

FIXED ASSETS	3 Months Ended
	Mar. 31, 2018
Property, Plant and Equipment [Abstract]
FIXED ASSETS	FIXED ASSETS Fixed assets, which consist of furniture and equipment, capitalized software, office leasehold improvements, and company-owned aircraft, are included in other assets in the condensed consolidated statements of financial position. The following table sets forth the Company’s fixed assets and accumulated depreciation: As of March 31, 2018 December 31, 2017 Furniture, equipment and capitalized software $ 25,994 $ 25,618 Leasehold improvements 67,913 66,940 Corporate aircraft 66,120 66,120 Other 5,309 5,229 Fixed assets 165,336 163,907 Accumulated depreciation (56,618 ) (53,744 ) Fixed assets, net $ 108,718 $ 110,163

GOODWILL AND INTANGIBLES

GOODWILL AND INTANGIBLES	3 Months Ended
	Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND INTANGIBLES	GOODWILL AND INTANGIBLES Goodwill represents the excess of cost over the fair value of identifiable net assets of acquired businesses. Goodwill has an indefinite useful life and is not amortized, but instead is tested for impairment annually in the fourth quarter of each fiscal year, or more frequently if events or circumstances indicate that impairment may have occurred. As of March 31, 2018, the Company had determined there was no goodwill impairment. The carrying value of goodwill was $69.3 million as of March 31, 2018 and December 31, 2017. The following table summarizes the carrying value of intangible assets: As of March 31, 2018 December 31, 2017 Contractual rights $ 347,452 $ 347,452 Accumulated amortization (20,448 ) (16,301 ) Intangible assets, net $ 327,004 $ 331,151 Amortization expense associated with the Company’s intangible assets was $4.2 million and $1.0 million for the three months ended March 31, 2018 and 2017, respectively. Amortization expense is estimated to be $12.6 million for the remaining nine months of 2018, $16.8 million per annum for each of the years ending December 31, 2019 and 2020, $15.1 million for 2021, and $12.8 million for 2022. Goodwill and intangible assets are included in other assets in the condensed consolidated statements of financial position.

DEBT OBLIGATIONS AND CREDIT FAC

DEBT OBLIGATIONS AND CREDIT FACILITIES	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
DEBT OBLIGATIONS AND CREDIT FACILITIES	DEBT OBLIGATIONS AND CREDIT FACILITIES The Company’s debt obligations are set forth below: As of March 31, 2018 December 31, 2017 $250,000, 3.78%, issued in December 2017, payable on December 18, 2032 $ 250,000 $ 250,000 $250,000, variable-rate term loan, issued in March 2014, payable on March 29, 2023 (1) 150,000 150,000 $50,000, 3.91%, issued in September 2014, payable on September 3, 2024 50,000 50,000 $100,000, 4.01%, issued in September 2014, payable on September 3, 2026 100,000 100,000 $100,000, 4.21%, issued in September 2014, payable on September 3, 2029 100,000 100,000 $100,000, 3.69%, issued in July 2016, payable on July 12, 2031 100,000 100,000 Total remaining principal 750,000 750,000 Less: Debt issuance costs (4,454 ) (3,726 ) Debt obligations $ 745,546 $ 746,274 (1) On March 29, 2018, the credit facility was amended to among other things, extend the maturity date from March 31, 2021 to March 29, 2023, favorably update the commitment fee in the corporate ratings-based pricing grid and increase the permitted combined leverage ratio to a ratio of 3:50 to 1:00. The credit facility consists of a $150 million term loan and a $500 million revolving credit facility. Borrowings generally bear interest at a spread to either LIBOR or an alternative base rate. Based on the current credit ratings of Oaktree Capital Management, L.P., the interest rate on borrowings is LIBOR plus 1.00% per annum and the commitment fee on the unused portions of the revolving credit facility is 0.10% per annum. The credit agreement contains customary financial covenants and restrictions, including ones regarding a maximum leverage ratio and a minimum required level of assets under management (as defined in the credit agreement, as amended above). As of March 31, 2018, the Company had no outstanding borrowings under the revolving credit facility. As of March 31, 2018, future scheduled principal payments of debt obligations were as follows: Last nine months of 2018 $ — 2019 — 2020 — 2021 — 2022 — Thereafter 750,000 Total $ 750,000 The Company was in compliance with all financial maintenance covenants associated with its senior notes and bank credit facility as of March 31, 2018 and December 31, 2017. The fair value of the Company’s debt obligations, which are carried at amortized cost, is a Level III valuation that is estimated based on a discounted cash-flow calculation using estimated rates that would be offered to Oaktree for debt of similar terms and maturities. The fair value of these debt obligations, gross of debt issuance costs, was $757.3 million and $762.7 million as of March 31, 2018 and December 31, 2017, respectively, utilizing an average borrowing rate of 3.8% and 3.6% , respectively. As of March 31, 2018, a 10% increase in the assumed average borrowing rate would lower the estimated fair value to $734.2 million , whereas a 10% decrease would increase the estimated fair value to $783.0 million . In July 2017, the Company agreed to guarantee a $17.5 million standby letter of credit extended to one of the investment funds that it manages, which expired in January 2018. Credit Facilities of the Consolidated Funds Certain consolidated funds may maintain revolving credit facilities that are secured by the assets of the fund or may issue senior variable rate notes to fund investments on a longer term basis, generally up to ten years. The obligations of the consolidated funds are nonrecourse to the Company. The consolidated funds had the following debt obligations outstanding: Outstanding Amount as of Facility Capacity Weighted Average Interest Rate Weighted Average Remaining Maturity (years) Commitment Fee Rate L/C Fee Credit Agreement March 31, 2018 December 31, 2017 Senior variable rate notes $ 870,098 $ 870,098 $ 870,100 3.32% 10.5 N/A N/A Less: Debt issuance costs (7,164 ) (7,697 ) Total debt obligations, net $ 862,934 $ 862,401 As of both March 31, 2018 and December 31, 2017, the consolidated funds had debt obligations with an aggregate outstanding principal balance of $870.1 million . The fair value of the senior variable rate notes is a Level III valuation and aggregated $872.9 million and $872.1 million as of March 31, 2018 and December 31, 2017, respectively, using prices obtained from pricing vendors. Financial instruments that are valued using quoted prices for the security or similar securities are generally classified as Level III because the quoted prices may be indicative in nature for securities that are in an inactive market, may be for similar securities, or may require adjustment for investment-specific factors or restrictions. Debt Obligations of CLOs Debt obligations of CLOs represent amounts due to holders of debt securities issued by the CLOs, as well as term loans of CLOs that had not priced as of period end. Outstanding debt obligations of CLOs were as follows: As of March 31, 2018 As of December 31, 2017 Fair Value (1) Weighted Average Interest Rate Weighted Average Remaining Maturity (years) Fair Value (1) Weighted Average Interest Rate Weighted Average Remaining Maturity (years) Senior secured notes $ 3,203,723 2.36% 10.2 $ 3,107,955 2.18% 10.7 Subordinated note (2) 115,146 N/A 10.6 111,637 N/A 10.8 Total CLO debt obligations $ 3,318,869 $ 3,219,592 (1) The fair value of CLO liabilities was measured as the fair value of CLO assets less the sum of (a) the fair value of any beneficial interests held by the Company and (b) the carrying value of any beneficial interests that represent compensation for services. Please see notes 2 and 7 for more information. (2) The subordinated notes do not have a contractual interest rate; instead, they receive distributions from the excess cash flows generated by the CLO. The debt obligations of CLOs are nonrecourse to the Company and are backed by the investments held by the respective CLO. Assets of one CLO may not be used to satisfy the liabilities of another. As of both March 31, 2018 and December 31, 2017, the fair value of CLO assets was $3.9 billion and consisted of cash, corporate loans, corporate bonds and other securities. As of March 31, 2018, future scheduled principal or par value payments with respect to the debt obligations of CLOs were as follows: Last nine months of 2018 $ 99,729 2019 — 2020 — 2021 — 2022 — Thereafter 3,144,310 Total $ 3,244,039

NON-CONTROLLING REDEEMABLE INTE

NON-CONTROLLING REDEEMABLE INTERESTS IN CONSOLIDATED FUNDS	3 Months Ended
	Mar. 31, 2018
Non-Controlling Redeemable Interests in Consolidated Funds [Abstract]
NON-CONTROLLING REDEEMABLE INTERESTS IN CONSOLIDATED FUNDS	NON-CONTROLLING REDEEMABLE INTERESTS IN CONSOLIDATED FUNDS The following table sets forth a summary of changes in the non-controlling redeemable interests in the consolidated funds. Dividends reinvested and in-kind contributions or distributions are non-cash in nature and have been presented on a gross basis in the table below. Three Months Ended March 31, 2018 2017 Beginning balance $ 860,548 $ 344,047 Initial consolidation of a fund — 70,817 Contributions 59,745 34,786 Distributions (73,523 ) (9,173 ) Net income 10,553 9,003 Change in distributions payable 729 4,098 Foreign currency translation and other 3,812 — Ending balance $ 861,864 $ 453,578

UNITHOLDERS' CAPITAL

UNITHOLDERS' CAPITAL	3 Months Ended
	Mar. 31, 2018
Stockholders' Equity Note [Abstract]
UNITHOLDERS' CAPITAL	UNITHOLDERS’ CAPITAL Unitholders’ capital reflects the economic interests attributable to Class A unitholders, non-controlling interests in consolidated subsidiaries and non-controlling interests in consolidated funds. Non-controlling interests in consolidated subsidiaries represent the portion of unitholders’ capital attributable to the OCGH non-controlling interest and third parties. The OCGH non-controlling interest is determined at the Oaktree Operating Group level based on the proportionate share of Oaktree Operating Group units held by the OCGH unitholders. Certain expenses, such as income tax and related administrative expenses of Oaktree Capital Group, LLC and its Intermediate Holding Companies, are solely attributable to the Class A unitholders. As of March 31, 2018 and December 31, 2017, respectively, OCGH units represented 86,007,356 of the total 157,178,865 Oaktree Operating Group units and 90,975,687 of the total 156,285,913 Oaktree Operating Group units. Based on total allocable Oaktree Operating Group capital of $1,959,477 and $1,912,517 as of March 31, 2018 and December 31, 2017, respectively, the OCGH non-controlling interest was $1,072,211 and $1,113,314 . As of March 31, 2018 and December 31, 2017, non-controlling interests attributable to third parties was $7,375 and $7,923 , respectively. In February 2018, the Company issued and sold 5,000,000 Class A units in a public offering, resulting in $ 219.5 million in net proceeds to the Company. The Company did not retain any proceeds from the sale of Class A units in this offering. The proceeds were used to acquire interests in the Company’s business from certain of the Company’s directors, employees and other investors, including certain senior executives and other members of the Company’s senior management. The following table sets forth a summary of net income attributable to the OCGH unitholders’ non-controlling interest and to Class A unitholders: Three Months Ended March 31, 2018 2017 Weighted average Oaktree Operating Group units outstanding (in thousands): OCGH non-controlling interest 88,270 91,644 Class A unitholders 67,918 63,022 Total weighted average units outstanding 156,188 154,666 Oaktree Operating Group net income: Net income attributable to OCGH non-controlling interest $ 73,255 $ 96,598 Net income attributable to Class A unitholders 56,362 66,428 Oaktree Operating Group net income (1) $ 129,617 $ 163,026 Net income attributable to Oaktree Capital Group, LLC: Oaktree Operating Group net income attributable to Class A unitholders $ 56,362 $ 66,428 Non-Operating Group income (expense) 20 (232 ) Income tax expense of Intermediate Holding Companies (3,650 ) (11,281 ) Net income attributable to Oaktree Capital Group, LLC $ 52,732 $ 54,915 (1) Oaktree Operating Group net income does not include amounts attributable to other non-controlling interests, which amounted to $692 and $626 for the three months ended March 31, 2018 and 2017, respectively. The change in the Company’s ownership interest in the Oaktree Operating Group is set forth below: Three Months Ended March 31, 2018 2017 Net income attributable to Oaktree Capital Group, LLC $ 52,732 $ 54,915 Equity reallocation between controlling and non-controlling interests 73,830 12,061 Change from net income attributable to Oaktree Capital Group, LLC and transfers from non-controlling interests $ 126,562 $ 66,976 Please see notes 14, 15 and 16 for additional information regarding transactions that impacted unitholders’ capital.

EARNINGS PER UNIT

EARNINGS PER UNIT	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
EARNINGS PER UNIT	EARNINGS PER UNIT The computation of net income per Class A unit is set forth below: Three Months Ended March 31, 2018 2017 Net income per Class A unit (basic and diluted): (in thousands, except per unit amounts) Net income attributable to Oaktree Capital Group, LLC $ 52,732 $ 54,915 Weighted average number of Class A units outstanding (basic and diluted) 67,918 63,022 Basic and diluted net income per Class A unit $ 0.78 $ 0.87 OCGH units may be exchanged on a one -for- one basis into Class A units, subject to certain restrictions. As of March 31, 2018, there were 86,007,356 OCGH units outstanding, which are vested or will vest through February 15, 2028, that ultimately may be exchanged into 86,007,356 Class A units. The exchange of these units would proportionally increase the Company’s interest in the Oaktree Operating Group. However, as the restrictions set forth in the exchange agreement were in place at the end of each respective reporting period, those units were not included in the computation of diluted earnings per unit for the three months ended March 31, 2018 and 2017. A deferred equity unit represents a special unit award that, when vested, will be settled with an unvested OCGH unit on a one -for- one basis. The number of deferred equity units that will vest is based on the achievement of certain performance targets through June 2021. Once a performance target has been met, the applicable number of OCGH units will be issued and begin to vest over 4.0 years. The holder of a deferred equity unit is not entitled to any distributions until the issuance of an OCGH unit in settlement of a deferred equity unit. As of March 31, 2018, no OCGH units were considered issuable under the terms of the arrangement; consequently, no contingently issuable units were included in the computation of diluted earnings per unit for the three months ended March 31, 2018. Please see note 15 for more information. Certain compensation arrangements include performance-based awards that could result in the issuance of up to 340,000 OCGH units in total, which would vest over periods of four to ten years from date of issuance. As of March 31, 2018, no OCGH units were considered issuable under the terms of these arrangements; consequently, no contingently issuable units were included in the computation of diluted earnings per unit for the three months ended March 31, 2018. In connection with the 2014 Highstar acquisition, the Company has a contingent consideration liability that is payable in a combination of cash and fully-vested OCGH units. The amount of contingent consideration, if any, is based on the achievement of certain performance targets over a period of up to seven years from the acquisition date. As of March 31, 2018 and 2017, no OCGH units were considered issuable under the terms of the contingent consideration arrangement; consequently, no contingently issuable units were included in the computation of diluted earnings per unit for the three months ended March 31, 2018 and 2017. Please see note 17 for more information.

EQUITY-BASED COMPENSATION

EQUITY-BASED COMPENSATION	3 Months Ended
	Mar. 31, 2018
Share-based Compensation [Abstract]
EQUITY-BASED COMPENSATION	EQUITY-BASED COMPENSATION Class A and OCGH Unit Awards During the three months ended March 31, 2018, the Company granted 1,150,196 Class A units and 113,801 restricted OCGH units to its employees and directors, subject to annual vesting over a weighted average period of approximately 4.4 years . The grant date fair value of OCGH units awarded during the three months ended March 31, 2018 was determined by applying a 20% discount to the Class A unit trading price on the New York Stock Exchange as of the grant date. With respect to forfeitures, the Company has made an accounting policy election to account for forfeitures when they occur. Accordingly, no forfeitures have been assumed in the calculation of compensation expense. As of March 31, 2018, the Company expected to recognize compensation expense on its unvested Class A and OCGH unit awards of $178.1 million over a weighted average period of 4.2 years. A summary of the status of the Company’s unvested Class A and OCGH unit awards and changes for the period presented are set forth below (actual dollars per unit): Class A Units OCGH Units (1) Number of Units Weighted Average Grant Date Fair Value Number of Units Weighted Average Grant Date Fair Value Balance, December 31, 2017 2,556,316 $ 44.05 2,158,835 $ 39.79 Granted 1,150,196 39.60 113,801 31.68 Vested (863,389 ) 42.53 (282,028 ) 37.61 Forfeited (65,225 ) 39.72 — — Balance, March 31, 2018 2,777,898 $ 42.78 1,990,608 $ 39.63 (1) Excludes certain performance-based awards that could result in the issuance of up to 340,000 OCGH units, which would vest over periods of four to ten years from date of issuance. Though no units have been issued to date under these arrangements, as of March 31, 2018 the Company expected to recognize compensation expense on 120,000 unvested OCGH performance awards of $ 3.8 million over a weighted average period of 5.0 years under applicable accounting rules. Equity Value Units OCGH equity value units (“EVUs”) represent special limited partnership units in OCGH that entitle the holder the right to receive special distributions that will be settled in OCGH units, based on value created during a specified period in excess of a fixed “Base Value.” The value created will be measured on a per unit basis, based on the appreciation of the Class A units and certain components of quarterly distributions with respect to OCGH units over the period beginning on January 1, 2015 and ending on each of December 31, 2019, December 31, 2020 and December 31, 2021, with one-third of the EVUs recapitalizing on each such date. EVUs also give the holder the right, subject to service vesting and Oaktree performance relative to the accreting Base Value, to receive certain quarterly distributions from OCGH. EVUs do not entitle the holder to any voting rights. The value received under the EVUs will be reduced by (i) distributions received by the holder on 225,000 OCGH units granted to the holder on April 26, 2017, (ii) the value of the portion of profit sharing payments received by the holder attributable to the net incentive income received from certain funds, and (iii) the full value of the OCGH units granted to the holder on April 26, 2017. To the extent that the reduction relates to the value of any such OCGH units that are unvested at the time of the reduction, such OCGH units will vest at that time. Certain EVUs provide the holder with liquidity rights in respect of the special distributions, if any, that will be settled in OCGH units. The Company accounts for EVUs with liquidity rights as liability-classified awards. As of March 31, 2018, there were 1,000,000 equity-classified EVUs and 1,000,000 liability-classified EVUs outstanding. As of March 31, 2018, the Company expected to recognize $2.6 million of compensation expense on its unvested EVUs over the next 1.8 years . Equity-classified EVUs that require future service are expensed on a straight-line basis over the requisite service period. Liability-classified EVUs are remeasured at the end of each quarter. The fair value of EVUs was determined using a Monte Carlo simulation model. The fair value is affected by the Class A unit trading price and assumptions regarding certain complex and subjective variables, including the expected Class A unit trading price volatility, distributions and exercise timing, and the risk-free interest rate. Deferred Equity Units A deferred equity unit represents a special unit award that, when vested, will be settled with an unvested OCGH unit on a one -for- one basis. The number of deferred equity units that will vest is based on the achievement of certain performance targets through June 2021. Once a performance target has been met, the applicable number of OCGH units will be issued and begin to vest over 4.0 years. The holder of a deferred equity unit is not entitled to any distributions until settled by the issuance of an OCGH unit. As of March 31, 2018, there were 250,000 deferred equity units outstanding, all of which were granted in the second quarter of 2017. As of March 31, 2018, the Company expected to recognize $2.6 million of compensation expense on its unvested deferred equity units over a weighted average period of approximately 5.7 years. The fair value of the deferred equity units was determined at the grant date based on the then-prevailing Class A unit trading price and reflected a 20% lack-of-marketability discount for the OCGH units that will be issued upon vesting.

INCOME TAXES AND RELATED PAYMEN

INCOME TAXES AND RELATED PAYMENTS	3 Months Ended
	Mar. 31, 2018
Income Tax Disclosure [Abstract]
INCOME TAXES AND RELATED PAYMENTS	INCOME TAXES AND RELATED PAYMENTS Oaktree is a publicly traded partnership and Oaktree Holdings, Inc. and Oaktree AIF Holdings, Inc., two of its Intermediate Holding Companies, are wholly-owned corporate subsidiaries. Income earned by these corporate subsidiaries is subject to U.S. federal and state income taxation and taxed at prevailing rates. Income earned by non-corporate subsidiaries is not subject to U.S. federal corporate income tax and is allocated to the Oaktree Operating Group’s unitholders. The Company’s effective tax rate is dependent on many factors, including the estimated nature of many amounts and the mix of revenues and expenses between the subsidiaries that are or are not subject to income tax; consequently, from period to period the effective tax rate is subject to significant variation. The Company’s effective tax rate used for interim periods is based on the estimated full-year income tax rate. Certain future items that cannot be reliably estimated, such as incentive income, are excluded from the estimated annual effective tax rate. The tax expense or benefit stemming from these items is recognized in the same period as the underlying income or expense. Tax authorities currently are examining certain income tax returns of Oaktree, with certain of these examinations at an advanced stage. Over the next four quarters ending March 31, 2019, the Company believes that it is reasonably possible that one outcome of these examinations and expiring statutes of limitation on other items may be the release of up to approximately $5.3 million of previously accrued Operating Group income taxes. The Company believes that it has adequately provided for any reasonably foreseeable outcomes related to its tax examinations and that any settlements related thereto will not have a material adverse effect on the Company’s consolidated financial statements; however, there can be no assurances as to the ultimate outcomes. Tax Legislation On December 22, 2017, the Tax Cuts and Jobs Act (the “Tax Act”) was enacted. The Tax Act reduced the corporate income tax rate from 35% to 21%, and included significant changes to other domestic and international corporate income tax provisions. The rate change resulted in a net reduction to net income attributable to Oaktree Capital Group, LLC of $ 33.2 million in the fourth quarter of 2017. The SEC Staff issued Staff Accounting Bulletin No. 118 in December 2017, which allows a financial statement issuer that does not have all necessary information to fully account for the income tax effect of the Tax Act to record a provisional amount in its financial statements that may be subject to adjustment during a subsequent measurement period. As of March 31, 2018, no adjustments have been made to the above provisional amounts. The Company will continue to evaluate the impact of the Tax Act with respect to certain international provisions as well as provisions that have been identified as requiring additional technical guidance. The Company expects to complete its evaluation of the provisional amounts during the second half of 2018 as technical guidance is released and as it completes its 2017 federal and state income tax returns. Exchange Agreement and Tax Receivable Agreement Subject to certain restrictions and the approval of the Company’s board of directors, each holder of OCGH units has the right to exchange his or her vested units for, at the option of the Company’s board of directors, Class A units, an equivalent amount of cash based on then-prevailing market prices and/or other consideration of equal value. Certain of the Oaktree Operating Group entities made an election under Section 754 of the U.S. Internal Revenue Code, as amended, which may result in an adjustment to the tax basis of the assets owned by the Oaktree Operating Group at the time of an exchange. These exchanges may result in increases in tax deductions and tax basis that would reduce the amount of tax that Oaktree Holdings, Inc. and Oaktree AIF Holdings, Inc. would otherwise be required to pay in the future. Oaktree Holdings, Inc. and Oaktree AIF Holdings, Inc. have entered into a tax receivable agreement with OCGH unitholders that, as amended, provides for the payment to an exchanging or selling OCGH unitholder of 85% of the amount of cash savings, if any, in U.S. federal, state, local and foreign income taxes that they actually realize (or are deemed to realize in the case of an early termination payment by Oaktree Holdings, Inc. or Oaktree AIF Holdings, Inc., or a change of control) as a result of an increase in the tax basis of the assets owned by the Oaktree Operating Group. When an exchange of OCGH units results in an increase to the tax basis of the assets owned by the Oaktree Operating Group, a deferred tax asset and an associated liability for payments to OCGH unitholders under the tax receivable agreement are recorded, subject to realizability considerations. The establishment of a deferred tax asset increases additional paid-in capital because the transactions are between Oaktree and its unitholders. Assuming no further material changes in the relevant tax law and that the Company earns sufficient taxable income to realize the full tax benefit of the increased amortization of the assets, the expected estimated future payments to OCGH unitholders under the tax receivable agreement, as of March 31, 2018, are set forth below: Transaction Total Future Payments Payments Through Fiscal Year 2007 Private Offering $ 17,339 2029 Initial public offering 36,767 2034 May 2013 Offering 51,122 2035 March 2014 Offering 38,557 2036 March 2015 Offering 32,498 2037 February 2018 Offering 34,288 2040 Total $ 210,571 Future estimated payments to OCGH unitholders under the tax receivable agreement are subject to increase in the event of additional exchanges of OCGH units. No amounts were paid under the tax receivable agreement during the three months ended March 31, 2018.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES In the normal course of business, Oaktree enters into contracts that contain certain representations, warranties and indemnifications. The Company’s exposure under these arrangements would involve future claims that have not yet been asserted. Inasmuch as no such claims currently exist or are expected to arise, the Company has not accrued any liability in connection with these indemnifications. Legal Actions Oaktree, its affiliates, investment professionals, and portfolio companies are routinely involved in litigation and other legal actions in the ordinary course of their business and investing activities. In addition, Oaktree is subject to the authority of a number of U.S. and non-U.S. regulators, including the SEC and the Financial Industry Regulatory Authority, and those authorities periodically conduct examinations of Oaktree and make other inquiries that may result in the commencement of regulatory proceedings against Oaktree and its personnel. Oaktree is currently not subject to any pending actions or regulatory proceedings that either individually or in the aggregate are expected to have a material impact on its consolidated financial statements. Incentive Income In addition to the incentive income recognized by the Company, certain of its funds have amounts recorded as potentially allocable to the Company as its share of potential future incentive income, based on each fund’s net asset value. Inasmuch as this incentive income is contingent upon future investment activity and other factors, it is not recognized by the Company as revenue until it is probable that a significant reversal will not occur. As of March 31, 2018 and December 31, 2017, respectively, the aggregate of such amounts recorded at the fund level in excess of incentive income recognized by the Company was $1,770,580 and $1,918,952 , for which related direct incentive income compensation expense was estimated to be $918,696 and $1,000,232 . Contingent Liabilities The Company has a contingent consideration obligation of up to $60.0 million related to the Highstar acquisition, payable in cash and fully-vested OCGH units. The amount of contingent consideration is based on the achievement of certain performance targets over a period of up to seven years from the acquisition date of August 2014. As of March 31, 2018 and December 31, 2017, respectively, the fair value of the contingent consideration liability was $16.2 million and $18.8 million . Changes in this liability resulted in income of $2.6 million and expense of $0.6 million for the three months ended March 31, 2018 and 2017, respectively. The fair value of the contingent consideration liability is a Level III valuation, which uses a discounted cash-flow analysis based on a probability-weighted average estimate of certain performance targets, including fundraising and revenue levels. The assumptions used in the analysis are inherently subjective, and thus the ultimate amount of the contingent consideration liability may differ materially from the most recent estimate. The contingent consideration liability is included in accounts payable, accrued expenses and other liabilities in the condensed consolidated statements of financial condition. Changes in the liability are recorded in general and administrative expense in the condensed consolidated statements of operations. In connection with the October 2017 BDC acquisition, the Company recorded a $ 56.2 million contingent liability and a $ 56.2 million indemnification asset as part of the purchase price allocation. Please see note 3 for more information. Commitments to Funds As of March 31, 2018 and December 31, 2017, the Company, generally in its capacity as general partner, had undrawn capital commitments of $360.3 million and $429.1 million , respectively, including commitments to both unconsolidated and consolidated funds. Investment Commitments of the Consolidated Funds Certain of the consolidated funds are parties to credit arrangements that provide for the issuance of letters of credit and/or revolving loans, which may require the particular fund to extend loans to investee companies. The consolidated funds use the same investment criteria in making these commitments as they do for investments that are included in the condensed consolidated statements of financial condition. The unfunded liability associated with these credit arrangements is equal to the amount by which the contractual loan commitment exceeds the sum of funded debt and cash held in escrow, if any. As of March 31, 2018 and December 31, 2017, the consolidated funds had potential aggregate commitments of $7.5 million and $6.0 million , respectively. These commitments are expected to be funded by the funds’ cash balances, proceeds from asset sales or drawdowns against existing capital commitments. A consolidated fund may agree to guarantee the repayment obligations of certain investee companies. As of March 31, 2018 and December 31, 2017, there were no guaranteed amounts under such arrangements. Certain consolidated funds are investment companies that are required to disclose financial support provided or contractually required to be provided to any of their portfolio companies. During the three months ended March 31, 2018, the consolidated funds did not provide any financial support to portfolio companies.

RELATED-PARTY TRANSACTIONS

RELATED-PARTY TRANSACTIONS	3 Months Ended
	Mar. 31, 2018
Related Party Transactions [Abstract]
RELATED-PARTY TRANSACTIONS	RELATED-PARTY TRANSACTIONS The Company considers its senior executives, employees and unconsolidated Oaktree funds to be affiliates (as defined in the FASB ASC Master Glossary). Amounts due from and to affiliates are set forth below. The fair value of amounts due from and to affiliates is a Level III valuation and was valued based on a discounted cash-flow analysis. The carrying value of amounts due from affiliates approximated fair value due to their short-term nature or because their average interest rate, which ranged from 2.0% to 3.0% , approximated the Company’s cost of debt. The fair value of amounts due to affiliates approximated $108,417 and $93,772 as of March 31, 2018 and December 31, 2017, respectively, based on a discount rate of 10.0% . As of March 31, 2018 December 31, 2017 Due from affiliates: Loans $ 6,951 $ 9,239 Amounts due from unconsolidated funds 55,873 57,155 Management fees and incentive income due from unconsolidated funds 86,265 152,959 Payments made on behalf of unconsolidated entities 4,310 3,784 Non-interest bearing advances made to certain non-controlling interest holders and employees 26 87 Total due from affiliates $ 153,425 $ 223,224 Due to affiliates: Due to OCGH unitholders in connection with the tax receivable agreement (please see note 16) $ 210,571 $ 176,283 Amounts due to senior executives, certain non-controlling interest holders and employees 1,165 1,590 Total due to affiliates $ 211,736 $ 177,873 Loans Loans primarily consist of interest-bearing loans made to certain non-controlling interest holders, primarily certain employees, to meet tax obligations related to vesting of equity awards. The loans, which are generally recourse to the borrower or secured by vested equity and other collateral, typically bear interest at the Company’s cost of debt and generated interest income of $109 and $151 for the three months ended March 31, 2018 and 2017, respectively. Due From Oaktree Funds and Portfolio Companies In the normal course of business, the Company advances certain expenses on behalf of Oaktree funds. Amounts advanced on behalf of consolidated funds are eliminated in consolidation. Certain expenses paid by the Company, which typically are employee travel and other costs associated with particular portfolio company holdings, are reimbursed to the Company by the portfolio companies. Revenues Earned From Oaktree Funds Management fees and incentive income earned from unconsolidated Oaktree funds totaled $312.0 million and $260.2 million for the three months ended March 31, 2018 and 2017, respectively. Other Investment Transactions The Company’s senior executives, directors and senior professionals are permitted to invest their own capital (or the capital of family trusts or other estate planning vehicles they control) in Oaktree funds, for which they pay the particular fund’s full management fee but not its incentive allocation. To facilitate the funding of capital calls by funds in which employees are invested, the Company periodically advances on a short-term basis the capital calls on certain employees’ behalf. These advances are reimbursed generally toward the end of the calendar quarter in which the capital calls occurred. Amounts advanced by the Company are included within “non-interest bearing advances made to certain non-controlling interest holders and employees” in the above table. Aircraft Services The Company owns an aircraft for business purposes. Howard Marks, the Company’s co-chairman, may use this aircraft for personal travel and will reimburse the Company to the extent his use of the aircraft for personal travel exceeds a certain threshold pursuant to a Company policy adopted as of January 1, 2017. The Company also provides certain senior executives a personal travel allowance for private aircraft usage up to a certain threshold pursuant to the same Company policy. Additionally, the Company occasionally makes use of an aircraft owned by one of its senior executives for business purposes at a price to the Company that is based on market rates. Special Allocations Certain senior executives receive special allocations based on a percentage of profits of the Oaktree Operating Group. These special allocations, which are recorded as compensation expense, are made on a current basis for so long as they remain senior executives of the Company, with limited exceptions.

SEGMENT REPORTING

SEGMENT REPORTING	3 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
SEGMENT REPORTING	SEGMENT REPORTING As a global investment manager, the Company provides investment management services through funds and separate accounts. The Company earns revenues from the management fees and incentive income generated by the funds that it manages. Management uses a consolidated approach to assess performance and allocate resources. As such, the Company’s business is comprised of one segment, the investment management business. The Company conducts its investment management business primarily in the United States, where substantially all of its revenues are generated.

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	3 Months Ended
	Mar. 31, 2018
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS On April 26, 2018, the Company announced a distribution of $0.96 per Class A unit. This distribution, which is related to the first quarter of 2018, will be paid on May 11, 2018 to Class A unitholders of record at the close of business on May 7, 2018.

SUMMARY OF SIGNIFICANT ACCOUN28

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Consolidation	Consolidation The Company consolidates entities in which it has a direct or indirect controlling financial interest based on either a variable interest model or voting interest model. A limited partnership or similar entity is a variable interest entity (“VIE”) if the unaffiliated limited partners do not have substantive kick-out or participating rights. Most of the Oaktree funds are VIEs because they have not granted unaffiliated limited partners substantive kick-out or participating rights. The Company consolidates those VIEs in which it is the primary beneficiary. An entity is deemed to be the primary beneficiary if it holds a controlling financial interest. A controlling financial interest is defined as (a) the power to direct the activities of a VIE that most significantly impact the entity’s economic performance and (b) the obligation to absorb losses of the entity or the right to receive benefits from the entity that could potentially be significant to the VIE. The consolidation guidance requires an analysis to determine (a) whether an entity in which the Company holds a variable interest is a VIE and (b) whether the Company’s involvement, through holding interests directly or indirectly in the entity or contractually through other variable interests (e.g., management and performance-based fees), would give it a controlling financial interest. A decision maker’s fee arrangement is not considered a variable interest if (a) it is compensation for services provided, commensurate with the level of effort required to provide those services, and part of a compensation arrangement that includes only terms, conditions or amounts that are customarily present in arrangements for similar services negotiated at arm’s length (“at-market”), and (b) the decision maker does not hold any other variable interests that absorb more than an insignificant amount of the potential VIE’s expected residual returns. The Company determines whether it is the primary beneficiary of a VIE at the time it becomes involved with a VIE and reconsiders that conclusion at each reporting date. In evaluating whether the Company is the primary beneficiary, the Company evaluates its economic interests in the entity held either directly by the Company or indirectly through related parties. The consolidation analysis can generally be performed qualitatively; however, if it is not readily apparent that the Company is not the primary beneficiary, a quantitative analysis may also be performed. Investments and redemptions (either by the Company, affiliates of the Company or third parties) or amendments to the governing documents of the respective Oaktree funds could affect an entity’s status as a VIE or the determination of the primary beneficiary. The Company does not consolidate most of the Oaktree funds because it is not the primary beneficiary of those funds due to the fact that its fee arrangements are considered at-market and thus not deemed to be variable interests, and it does not hold any other interests in those funds that are considered to be more than insignificant. Please see note 5 for more information regarding both consolidated and unconsolidated VIEs. For entities that are not VIEs, consolidation is evaluated through a majority voting interest model. “Consolidated funds” refers to Oaktree-managed funds and CLOs that the Company is required to consolidate. When funds or CLOs are consolidated, the Company reflects the assets, liabilities, revenues, expenses and cash flows of the funds or CLOs on a gross basis, and the majority of the economic interests in those funds or CLOs, which are held by third-party investors, are reflected as non-controlling interests in consolidated funds or debt obligations of CLOs in the condensed consolidated financial statements. All of the revenues earned by the Company as investment manager of the consolidated funds are eliminated in consolidation. However, because the eliminated amounts are earned from and funded by third-party investors, the consolidation of a fund does not impact net income or loss attributable to the Company. Certain entities in which the Company has the ability to exert significant influence, including unconsolidated Oaktree funds for which the Company acts as general partner, are accounted for under the equity method of accounting.
Non-controlling Interests in Consolidated Funds and Subsidiaries	Non-controlling Redeemable Interests in Consolidated Funds The Company records non-controlling interests to reflect the economic interests of the unaffiliated limited partners. These interests are presented as non-controlling redeemable interests in consolidated funds within the condensed consolidated statements of financial condition, outside of the permanent capital section. Limited partners in open-end and evergreen funds generally have the right to withdraw their capital, subject to the terms of the respective limited partnership agreements, over periods ranging from one month to three years . While limited partners in consolidated closed-end funds generally have not been granted redemption rights, these limited partners do have withdrawal or redemption rights in certain limited circumstances that are beyond the control of the Company, such as instances in which retaining the limited partnership interest could cause the limited partner to violate a law, regulation or rule. The allocation of net income or loss to non-controlling redeemable interests in consolidated funds is based on the relative ownership interests of the unaffiliated limited partners after the consideration of contractual arrangements that govern allocations of income or loss. At the consolidated level, potential incentives are allocated to non-controlling redeemable interests in consolidated funds until such incentives become allocable to the Company under the substantive contractual terms of the limited partnership agreements of the funds. Non-controlling Interests in Consolidated Funds Non-controlling interests in consolidated funds represent the equity interests held by third-party investors in CLOs that had not yet priced as of the respective period end. All non-controlling interests in those CLOs are attributed a share of income or loss arising from the respective CLO based on the relative ownership interests of third-party investors after consideration of contractual arrangements that govern allocations of income or loss. Investors in those CLOs are generally unable to redeem their interests until the respective CLO liquidates, is called or otherwise terminates. Non-controlling Interests in Consolidated Subsidiaries Non-controlling interests in consolidated subsidiaries reflect the portion of unitholders’ capital attributable to OCGH unitholders (“OCGH non-controlling interest”) and third parties. All non-controlling interests in consolidated subsidiaries are attributed a share of income or loss in the respective consolidated subsidiary based on the relative economic interests of the OCGH unitholders or third parties after consideration of contractual arrangements that govern allocations of income or loss. Please see note 13 for more information.
Acquisitions	Acquisitions The Company accounts for business combinations using the acquisition method of accounting, which requires the use of estimates and judgment to measure the fair value of identifiable tangible and intangible assets acquired, liabilities assumed, and non-controlling interests in the acquiree as of the acquisition date. Contingent consideration that is determined to be part of the business combination is recognized at fair value as of the acquisition date and is included in the purchase price. Transaction costs are expensed as incurred. Transactions that do not meet the definition of a business are accounted for as asset acquisitions. The cost of an asset acquisition is allocated to the individual assets acquired and liabilities assumed on a relative fair value basis. Transaction costs are included in the cost of the acquisition and no goodwill is recognized.
Goodwill and Intangibles	Goodwill and Intangibles Goodwill represents the excess of cost over the fair value of identifiable net assets of acquired businesses. Goodwill has an indefinite useful life and is not amortized, but instead is tested for impairment annually in the fourth quarter of each fiscal year, or more frequently when events or circumstances indicate that impairment may have occurred. The Company’s acquired identifiable intangible assets primarily relate to contractual rights to earn future management fees and incentive income. Finite-lived intangible assets are amortized over their estimated useful lives, which range from seven to 25 years, and are reviewed for impairment whenever events or circumstances indicate that the carrying amount of the asset may not be recoverable.
Fair Value of Financial Instruments and Fair Value Option	Fair Value of Financial Instruments GAAP establishes a hierarchical disclosure framework that prioritizes the inputs used in measuring financial instruments at fair value into three levels based on their market observability. Market price observability is affected by a number of factors, such as the type of instrument and the characteristics specific to the instrument. Financial instruments with readily available quoted prices from an active market or for which fair value can be measured based on actively quoted prices generally will have a higher degree of market price observability and a lesser degree of judgment inherent in measuring fair value. Financial assets and liabilities measured and reported at fair value are classified as follows: • Level I – Quoted unadjusted prices for identical instruments in active markets to which the Company has access at the date of measurement. The types of investments in Level I include exchange-traded equities, debt and derivatives with quoted prices. • Level II – Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs are directly or indirectly observable. Level II inputs include interest rates, yield curves, volatilities, prepayment risks, loss severities, credit risks and default rates. The types of investments in Level II generally include corporate bonds and loans, government and agency securities, less liquid and restricted equity investments, over-the-counter traded derivatives, debt obligations of consolidated CLOs, and other investments where the fair value is based on observable inputs. • Level III – Valuations for which one or more significant inputs are unobservable. These inputs reflect the Company’s assessment of the assumptions that market participants use to value the investment based on the best available information. Level III inputs include prices of quoted securities in markets for which there are few transactions, less public information exists or prices vary among brokered market makers. The types of investments in Level III include non-publicly traded equity, debt, real estate and derivatives. In some instances, the inputs used to value an instrument may fall into multiple levels of the fair-value hierarchy. In such instances, the instrument’s level within the fair-value hierarchy is based on the lowest of the three levels (with Level III being the lowest) that is significant to the fair-value measurement. The Company’s assessment of the significance of an input requires judgment and considers factors specific to the instrument. Transfers of assets into or out of each fair value hierarchy level as a result of changes in the observability of the inputs used in measuring fair value are accounted for as of the beginning of the reporting period. Transfers resulting from a specific event, such as a reorganization or restructuring, are accounted for as of the date of the event that caused the transfer. In the absence of observable market prices, the Company values Level III investments using valuation methodologies applied on a consistent basis. The quarterly valuation process for Level III investments begins with each portfolio company, property or security being valued by the investment and/or valuation teams. With the exception of open-end funds, all unquoted Level III investment values are reviewed and approved by (i) the Company’s valuation officer, who is independent of the investment teams, (ii) a designated investment professional of each strategy and (iii) for a substantial majority of unquoted Level III holdings as measured by market value, a valuation committee of the respective strategy. For open-end funds, unquoted Level III investment values are reviewed and approved by the Company’s valuation officer. For certain investments, the valuation process also includes a review by independent valuation parties, at least annually, to determine whether the fair values determined by management are reasonable. Results of the valuation process are evaluated each quarter, including an assessment of whether the underlying calculations should be adjusted or recalibrated. In connection with this process, the Company periodically evaluates changes in fair-value measurements for reasonableness, considering items such as industry trends, general economic and market conditions, and factors specific to the investment. Certain assets are valued using prices obtained from pricing vendors or brokers. The Company seeks to obtain prices from at least two pricing vendors for the subject or similar securities. In cases where vendor pricing is not reflective of fair value, a secondary vendor is unavailable, or no vendor pricing is available, a comparison value made up of quotes for the subject or similar securities received from broker dealers may be used. These investments may be classified as Level III because the quoted prices may be indicative in nature for securities that are in an inactive market, may be for similar securities, or may require adjustment for investment-specific factors or restrictions. The Company evaluates the prices obtained from brokers or pricing vendors based on available market information, including trading activity of the subject or similar securities, or by performing a comparable security analysis to ensure that fair values are reasonably estimated. The Company also performs back-testing of valuation information obtained from pricing vendors and brokers against actual prices received in transactions. In addition to ongoing monitoring and back-testing, the Company performs due diligence procedures surrounding pricing vendors to understand their methodology and controls to support their use in the valuation process. Fair Value Option The Company has elected the fair value option for certain corporate investments that otherwise would not have reflected unrealized gains and losses in current-period earnings. Such election is irrevocable and is applied on an investment-by-investment basis at initial recognition. Unrealized gains and losses resulting from changes in fair value are reflected as a component of investment income in the condensed consolidated statements of operations. The Company’s accounting for these investments is similar to its accounting for investments held by the consolidated funds at fair value and the valuation methods are consistent with those used to determine the fair value of the consolidated funds’ investments. The Company has elected the fair value option for the financial assets and financial liabilities of its consolidated CLOs. The assets and liabilities of CLOs are primarily reflected within the investments, at fair value and within the debt obligations of CLOs line items in the condensed consolidated statements of financial condition. The Company’s accounting for CLO assets is similar to its accounting for its funds with respect to both carrying investments held by CLOs at fair value and the valuation methods used to determine the fair value of those investments. The fair value of CLO liabilities are measured as the fair value of CLO assets less the sum of (a) the fair value of any beneficial interests held by the Company and (b) the carrying value of any beneficial interests that represent compensation for services. Realized gains or losses and changes in the fair value of CLO assets, respectively, are included in net realized gain on consolidated funds’ investments and net change in unrealized appreciation (depreciation) on consolidated funds’ investments in the condensed consolidated statements of operations. Interest income of CLOs is included in interest and dividend income, and interest expense and other expenses, respectively, are included in interest expense and consolidated fund expenses in the condensed consolidated statements of operations. Changes in the fair value of a CLO’s financial liabilities in accordance with the CLO measurement guidance are included in net change in unrealized appreciation (depreciation) on consolidated funds’ investments in the condensed consolidated statements of operations. Please see notes 7 and 11 for more information.
Investments, at Fair Value	Investments, at Fair Value The consolidated funds include investment limited partnerships and CLOs that reflect their investments, including majority-owned and controlled investments, at fair value. The Company has retained the specialized investment company accounting guidance under GAAP for investment limited partnerships with respect to consolidated investments and has elected the fair value option for the financial assets of CLOs. Thus, the consolidated investments are reflected in the condensed consolidated statements of financial condition at fair value, with unrealized gains and losses resulting from changes in fair value reflected as a component of net change in unrealized appreciation (depreciation) on consolidated funds’ investments in the condensed consolidated statements of operations. Fair value is the amount 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 (i.e., the exit price). Non-publicly traded debt and equity securities and other securities or instruments for which reliable market quotations are not available are valued by management using valuation methodologies applied on a consistent basis. These securities may initially be valued at the acquisition price as the best indicator of fair value. The Company reviews the significant unobservable inputs, valuations of comparable investments and other similar transactions for investments valued at acquisition price to determine whether another valuation methodology should be utilized. Subsequent valuations will depend on the facts and circumstances known as of the valuation date and the application of valuation methodologies as further described below under “—Non-publicly Traded Equity and Real Estate Investments.” The fair value may also be based on a pending transaction expected to close after the valuation date. Exchange-traded Investments Securities listed on one or more national securities exchanges are valued at their last reported sales price on the date of valuation. If no sale occurred on the valuation date, the security is valued at the mean of the last “bid” and “ask” prices on the valuation date. Securities that are not readily marketable due to legal restrictions that may limit or restrict transferability are generally valued at a discount from quoted market prices. The discount would reflect the amount market participants would require due to the risk relating to the inability to access a public market for the security for the specified period and would vary depending on the nature and duration of the restriction and the perceived risk and volatility of the underlying securities. Securities with longer duration restrictions or higher volatility are generally valued at a higher discount. Such discounts are generally estimated based on put option models or an analysis of market studies. Instances where the Company has applied discounts to quoted prices of restricted listed securities have been infrequent. The impact of such discounts is not material to the Company’s condensed consolidated statements of financial condition and results of operations for all periods presented. Credit-oriented Investments (including Real Estate Loan Portfolios) Investments in corporate and government debt which are not listed or admitted to trading on any securities exchange are valued at the mean of the last bid and ask prices on the valuation date based on quotations supplied by recognized quotation services or by reputable broker-dealers. The market-yield approach is considered in the valuation of non-publicly traded debt securities, utilizing expected future cash flows and discounted using estimated current market rates. Discounted cash-flow calculations may be adjusted to reflect current market conditions and/or the perceived credit risk of the borrower. Consideration is also given to a borrower’s ability to meet principal and interest obligations; this may include an evaluation of collateral and/or the underlying value of the borrower utilizing techniques described below under “—Non-publicly Traded Equity and Real Estate Investments.” Non-publicly Traded Equity and Real Estate Investments The fair value of equity and real estate investments is determined using a cost, market or income approach. The cost approach is based on the current cost of reproducing a real estate investment less deterioration and functional and economic obsolescence. The market approach utilizes valuations of comparable public companies and transactions, and generally seeks to establish the enterprise value of the portfolio company or investment property using a market-multiple methodology. This approach takes into account the financial measure (such as EBITDA, adjusted EBITDA, free cash flow, net operating income, net income, book value or net asset value) believed to be most relevant for the given company or investment property. Consideration also may be given to factors such as acquisition price of the security or investment property, historical and projected operational and financial results for the portfolio company, the strengths and weaknesses of the portfolio company or investment property relative to its comparable companies or properties, industry trends, general economic and market conditions, and others deemed relevant. The income approach is typically a discounted cash-flow method that incorporates expected timing and level of cash flows. It incorporates assumptions in determining growth rates, income and expense projections, discount and capitalization rates, capital structure, terminal values, and other factors. The applicability and weight assigned to market and income approaches are determined based on the availability of reliable projections and comparable companies and transactions. The valuation of securities may be impacted by expectations of investors’ receptiveness to a public offering of the securities, the size of the holding of the securities and any associated control, information with respect to transactions or offers for the securities (including the transaction pursuant to which the investment was made and the elapsed time from the date of the investment to the valuation date), and applicable restrictions on the transferability of the securities. These valuation methodologies involve a significant degree of management judgment. Accordingly, valuations by the Company do not necessarily represent the amounts that eventually may be realized from sales or other dispositions of investments. Fair values may differ from the values that would have been used had a ready market for the investment existed, and the differences could be material to the condensed consolidated financial statements.
Recent Accounting Developments	Recent Accounting Developments In January 2017, the Financial Accounting Standards Board (“FASB”) issued guidance to simplify the accounting for goodwill impairments by eliminating step 2 of the goodwill impairment test. This step currently requires an entity to perform a hypothetical purchase price allocation to derive the implied fair value of goodwill. Under the new guidance, an impairment loss is recognized if the carrying value of a reporting unit exceeds its fair value. The impairment loss would equal the amount of that excess, limited to the total amount of goodwill. All other goodwill impairment guidance remains largely unchanged. Entities will continue to have the option to perform a qualitative assessment to determine if a quantitative impairment test is necessary. The guidance is effective for the Company in the first quarter of 2020 on a prospective basis, with early adoption permitted. The Company expects that adoption of this guidance will not have a material impact on the consolidated financial statements. In August 2016, the FASB issued guidance on the classification of certain cash receipts and payments in the statement of cash flows. The amendments add to or clarify guidance on a number of cash flow issues, including debt prepayment or debt extinguishment costs, contingent consideration payments made after a business combination, distributions received from equity-method investees and beneficial interests in securitization transactions. The Company adopted this guidance in the first quarter of 2018 on a retrospective basis. The impact of adoption was not material to the Company’s consolidated financial statements. In February 2016, the FASB issued guidance that will require a lessee to recognize a lease asset and a lease liability for most of its operating leases. Under current GAAP, operating leases are not recognized by a lessee in its statements of financial position. In general, the new asset and liability will each equal the present value of lease payments. The guidance does not significantly change the recognition, measurement and presentation of expenses and cash flows arising from a lease by a lessee. The Company expects to adopt the guidance in the first quarter of 2019 under the modified retrospective transition approach, which requires application of the new guidance at the beginning of the earliest comparative period presented. The Company does not expect that adoption will have a material impact on the consolidated statements of operations because all of the Company’s leases are currently classified as operating leases, which under the guidance will continue to be recognized as expense on a straight-line basis. The adoption, however, will result in a significant gross-up in total assets and total liabilities on the consolidated statements of financial position. As of March 31, 2018, the Company’s minimum lease payments under lease obligations aggregated $155.0 million . In May 2014, the FASB issued guidance on revenue recognition that superseded most existing revenue recognition guidance, including industry-specific guidance. The guidance outlined a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers, and provides a largely principles-based framework for addressing revenue recognition issues on a comprehensive basis. Under the guidance, revenue is recognized when an entity satisfies a performance obligation by transferring control of a promised good or service to a customer in an amount that reflects the consideration for which the entity expects to be entitled for that good or service. The guidance also requires qualitative and quantitative disclosures about revenue that has been recognized and revenue that is expected to be recognized in the future from existing contracts, significant judgments and changes in those judgments made by management in recognizing revenue, disaggregation of revenue, and information about contract balances. The Company adopted this guidance in the first quarter of 2018 on a modified retrospective basis. The most significant effect of the guidance for the Company relates to the recognition of incentive income. The guidance requires the Company to recognize incentive income when it concludes that it is probable that significant reversals of revenue will not occur in subsequent periods. Under legacy GAAP, the amount of incentive income recognized by the Company was generally limited to the amount not contingent on a future event. Upon adoption, the Company recorded a cumulative-effect increase to unitholders’ capital of $ 48.7 million , net of tax, as of January 1, 2018. This adjustment relates to incentive income that would have met the “probable that significant reversal will not occur” criteria as of that date. In addition, effective January 1, 2018, certain reimbursements received by the Company from the investment funds it manages are reported as revenues on a gross basis with an equal offset to expenses in the consolidated statements of operations. Please see note 4 for more information on revenues.

REVENUES (Tables)

REVENUES (Tables)	3 Months Ended
	Mar. 31, 2018
Revenue from Contract with Customer [Abstract]
Revenue Disaggregated by Fund Structure	The following schedule presents revenues disaggregated by fund structure, each of which is affected by economic factors related to the asset class composition of the holdings and the contractual terms such as the basis for calculating the management fees and investors’ ability to redeem: Three Months Ended March 31, 2018 2017 Management Fees Closed-end $ 123,387 $ 127,721 Open-end 37,552 39,945 Evergreen 24,476 13,262 Total $ 185,415 $ 180,928 Incentive Income Closed-end $ 151,906 $ 108,657
Contract Balances	The table below sets forth contract balances for the periods indicated: As of March 31, 2018 December 31, 2017 Receivables (1) $ 62,265 $ 98,738 Contract assets (1) 24,000 54,221 Contract liabilities (2) (23,592 ) (25,297 ) (1) The decline in balances was primarily related to payments received, net of accruals. (2) Revenue recognized in the three months ended March 31, 2018 from amounts included in the contract liability balance as of December 31, 2017 was $17.9 million .

VARIABLE INTEREST ENTITIES (Tab

VARIABLE INTEREST ENTITIES (Tables)	3 Months Ended
	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
VARIABLE INTEREST ENTITIES	The carrying value of the Company’s investments in VIEs that were not consolidated are shown below. Carrying Value as of March 31, 2018 December 31, 2017 Corporate investments $ 911,132 $ 930,699 Due from affiliates 87,482 160,257 Maximum exposure to loss $ 998,614 $ 1,090,956

INVESTMENTS (Tables)

INVESTMENTS (Tables)	3 Months Ended
	Mar. 31, 2018
Investments [Abstract]
Equity Method Investments	Summarized financial information of the Company’s equity-method investments is set forth below. As of Statements of Financial Condition March 31, 2018 December 31, 2017 Assets: Cash and cash-equivalents $ 2,495,772 $ 2,654,311 Investments, at fair value 41,915,841 41,754,054 Other assets 2,051,923 2,116,751 Total assets $ 46,463,536 $ 46,525,116 Liabilities and Capital: Debt obligations $ 8,064,952 $ 8,393,314 Other liabilities 2,184,074 2,264,579 Total liabilities 10,249,026 10,657,893 Total capital 36,214,510 35,867,223 Total liabilities and capital $ 46,463,536 $ 46,525,116 Three Months Ended March 31, Statements of Operations 2018 2017 Revenues / investment income $ 477,491 $ 520,610 Interest expense (67,230 ) (47,014 ) Other expenses (201,436 ) (211,158 ) Net realized and unrealized gain on investments 530,361 924,551 Net income $ 739,186 $ 1,186,989 Corporate investments consisted of the following: As of Corporate Investments March 31, 2018 December 31, 2017 Equity-method investments: Funds $ 910,479 $ 916,559 Companies 35,345 42,294 Other investments, at fair value 56,377 50,778 Total corporate investments $ 1,002,201 $ 1,009,631
Investment Income	The components of investment income are set forth below: Three Months Ended March 31, Investment Income 2018 2017 Equity-method investments: Funds $ 27,266 $ 32,921 Companies 18,138 15,894 Other investments, at fair value (10,841 ) 1,636 Total investment income $ 34,563 $ 50,451
Investments, at Fair Value	Investments held and securities sold short by the consolidated funds are summarized below: Fair Value as of Fair Value as a Percentage of Investments of Consolidated Funds as of Investments March 31, 2018 December 31, 2017 March 31, 2018 December 31, 2017 United States: Debt securities: Consumer discretionary $ 796,820 $ 796,681 13.9 % 14.0 % Consumer staples 114,094 100,863 2.0 1.8 Energy 126,046 106,414 2.2 1.9 Financials 153,572 161,807 2.7 2.9 Government 1,534 3,033 0.0 0.1 Health care 400,027 416,779 7.0 7.4 Industrials 415,020 441,440 7.3 7.8 Information technology 474,554 431,010 8.3 7.6 Materials 364,346 384,310 6.4 6.8 Real estate 131,746 146,836 2.3 2.6 Telecommunication services 161,496 178,984 2.8 3.2 Utilities 95,167 117,805 1.7 2.1 Total debt securities (cost: $3,210,058 and $3,284,346 as of March 31, 2018 and December 31, 2017, respectively) 3,234,422 3,285,962 56.6 58.2 Equity securities: Consumer discretionary 1,397 1,778 0.1 0.0 Energy 554 649 0.0 0.0 Financials 725 3,061 0.0 0.1 Health care 1,364 527 0.0 0.0 Industrials 175 316 0.0 0.0 Telecommunication services — 305 — 0.0 Utilities 1,107 1,192 0.0 0.0 Total equity securities (cost: $6,199 and $8,102 as of March 31, 2018 and December 31, 2017, respectively) 5,322 7,828 0.1 0.1 Real estate: Real estate — 121,588 — 2.1 Total real estate securities (cost: $0 and $121,582 as of March 31, 2018 and December 31, 2017, respectively) — 121,588 — 2.1 Fair Value as of Fair Value as a Percentage of Investments of Consolidated Funds as of Investments March 31, 2018 December 31, 2017 March 31, 2018 December 31, 2017 Europe: Debt securities: Consumer discretionary $ 659,689 $ 573,270 11.5 % 10.1 % Consumer staples 155,063 121,636 2.7 2.1 Energy 8,919 5,929 0.2 0.1 Financials 40,008 40,130 0.7 0.7 Health care 368,119 333,693 6.4 5.9 Industrials 194,467 163,972 3.4 2.9 Information technology 121,296 95,409 2.1 1.7 Materials 279,123 267,252 4.9 4.7 Real estate 13,562 12,528 0.2 0.2 Telecommunication services 285,254 278,358 5.0 4.9 Utilities 3,014 8,949 0.1 0.2 Total debt securities (cost: $2,130,240 and $1,894,727 as of March 31, 2018 and December 31, 2017, respectively) 2,128,514 1,901,126 37.2 33.5 Equity securities: Consumer staples 1,057 1,449 0.0 0.0 Energy 4,377 3,827 0.1 0.1 Financials 5,536 7,410 0.1 0.1 Health care 858 601 0.0 0.0 Materials 1,089 1,622 0.0 0.0 Total equity securities (cost: $9,632 and $12,787 as of March 31, 2018 and December 31, 2017, respectively) 12,917 14,909 0.2 0.2 Asia and other: Debt securities: Consumer discretionary 16,020 30,332 0.3 0.5 Consumer staples 3,850 748 0.1 0.0 Energy 9,635 10,175 0.2 0.2 Financials 31,607 20,362 0.5 0.4 Health care 6,337 13,806 0.1 0.2 Industrials 42,317 22,935 0.7 0.4 Information technology 233 536 0.0 0.0 Materials 10,622 8,515 0.2 0.2 Real estate 6,270 6,272 0.1 0.1 Telecommunication services 15,543 8,104 0.3 0.1 Utilities 1,057 769 0.0 0.0 Total debt securities (cost: $145,078 and $124,723 as of March 31, 2018 and December 31, 2017, respectively) 143,491 122,554 2.5 2.1 Fair Value as of Fair Value as a Percentage of Investments of Consolidated Funds as of Investments March 31, 2018 December 31, 2017 March 31, 2018 December 31, 2017 Asia and other: Equity securities: Consumer discretionary $ 22,577 $ 29,026 0.4 % 0.5 % Consumer staples 9,462 7,279 0.2 0.1 Energy 6,670 5,551 0.1 0.1 Financials 56,818 58,632 1.1 1.2 Industrials 31,445 34,019 0.6 0.7 Information technology 19,897 23,900 0.3 0.4 Materials 18,923 28,590 0.3 0.5 Real estate 17,303 15,339 0.3 0.3 Telecommunication services 2,148 1,735 0.0 0.0 Utilities 7,739 2,502 0.1 0.0 Total equity securities (cost: $189,517 and $185,164 as of March 31, 2018 and December 31, 2017, respectively) 192,982 206,573 3.4 3.8 Total debt securities 5,506,427 5,309,642 96.3 93.8 Total equity securities 211,221 229,310 3.7 4.1 Total real estate securities — 121,588 — 2.1 Total investments, at fair value $ 5,717,648 $ 5,660,540 100.0 % 100.0 % Securities Sold Short Equity securities (proceeds: $66,783 and $82,502 as of March 31, 2018 and December 31, 2017, respectively) $ (69,808 ) $ (86,467 ) The following table summarizes net gains (losses) attributable to the Company’s other investments: Three Months Ended March 31, 2018 2017 Realized gain (loss) $ 796 $ 1,496 Net change in unrealized gain (loss) (11,637 ) 140 Total gain (loss) $ (10,841 ) $ 1,636
Net Gains (Losses) from Investment Activities of Consolidated Funds	The following table summarizes net gains (losses) from investment activities: Three Months Ended March 31, 2018 2017 Net Realized Gain (Loss) on Investments Net Change in Unrealized Appreciation (Depreciation) on Investments Net Realized Gain (Loss) on Investments Net Change in Unrealized Appreciation (Depreciation) on Investments Investments and other financial instruments $ 11,322 $ (30,588 ) $ 739 $ 3,736 CLO liabilities (1) — 18,072 — 19,831 Foreign-currency forward contracts (2) 1,439 (711 ) 179 (314 ) Total-return and interest-rate swaps (2) 20 (86 ) (746 ) 1,235 Options and futures (2) 1,818 (1,073 ) (2,044 ) 190 Total $ 14,599 $ (14,386 ) $ (1,872 ) $ 24,678 (1) Represents the net change in the fair value of CLO liabilities based on the more observable fair value of CLO assets, as measured under the CLO measurement guidance. Please see note 2 for more information. (2) Please see note 8 for additional information.

FAIR VALUE (Tables)

FAIR VALUE (Tables)	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value, by Balance Sheet Grouping	The Company’s other financial assets and financial liabilities by fair-value hierarchy level are set forth below. Please see notes 11 and 18 for the fair value of the Company’s outstanding debt obligations and amounts due from/to affiliates, respectively. As of March 31, 2018 As of December 31, 2017 Level I Level II Level III Total Level I Level II Level III Total Assets U.S. Treasury and other securities (1) $ 229,274 $ — $ — $ 229,274 $ 176,602 $ — $ — $ 176,602 Corporate investments — 4,255 53,095 57,350 — 1,833 50,902 52,735 Foreign-currency forward contracts (2) — 8,659 — 8,659 — 5,020 — 5,020 Total assets $ 229,274 $ 12,914 $ 53,095 $ 295,283 $ 176,602 $ 6,853 $ 50,902 $ 234,357 Liabilities Contingent consideration (3) $ — $ — $ (16,203 ) $ (16,203 ) $ — $ — $ (18,778 ) $ (18,778 ) Foreign-currency forward contracts (4) — (15,153 ) — (15,153 ) — (13,154 ) — (13,154 ) Cross-currency swap (3) — (19,768 ) — (19,768 ) — (7,479 ) — (7,479 ) Total liabilities $ — $ (34,921 ) $ (16,203 ) $ (51,124 ) $ — $ (20,633 ) $ (18,778 ) $ (39,411 ) (1) Carrying value approximates fair value due to the short-term nature. (2) Amounts are included in other assets in the condensed consolidated statements of financial condition. (3) Amounts are included in accounts payable, accrued expenses and other liabilities in the condensed consolidated statements of financial condition. (4) Amounts are included in accounts payable, accrued expenses and other liabilities in the condensed consolidated statements of financial condition, except for $973 and $1,957 as of March 31, 2018 and December 31, 2017, respectively, which are included within corporate investments in the condensed consolidated statements of financial condition.
Summary of Changes in Fair Value of Level III Investments	The table below sets forth a summary of changes in the fair value of Level III financial instruments: Three Months Ended March 31, 2018 2017 Corporate Investments Contingent Consideration Liability Corporate Investments Contingent Consideration Liability Beginning balance $ 50,902 $ (18,778 ) $ 74,663 $ (23,567 ) Contributions or additions 1,293 — 156 — Distributions (815 ) — (3,135 ) — Net gain (loss) included in earnings 1,715 2,575 3,757 (601 ) Ending balance $ 53,095 $ (16,203 ) $ 75,441 $ (24,168 ) Net change in unrealized gains (losses) attributable to financial instruments still held at end of period $ 919 $ 2,575 $ 2,261 $ (601 )
Summary of Changes in Fair Value of Level III Investments	The following tables set forth a summary of changes in the fair value of Level III investments: Corporate Debt – Bank Debt Corporate Debt – All Other Equities – Common Stock Equities – Preferred Stock Real Estate Total Three Months Ended March 31, 2018 Beginning balance $ 86,999 $ 75,388 $ 3,427 $ — $ 121,588 $ 287,402 Deconsolidation of funds — — — — (121,087 ) (121,087 ) Transfers into Level III 25,164 607 490 — — 26,261 Transfers out of Level III (7,289 ) (490 ) (57 ) — — (7,836 ) Purchases 4,816 31,123 56 236 — 36,231 Sales (17,472 ) (19,110 ) (311 ) — (501 ) (37,394 ) Realized gains (losses), net 328 86 — — — 414 Unrealized appreciation (depreciation), net 1,949 (203 ) 98 375 — 2,219 Ending balance $ 94,495 $ 87,401 $ 3,703 $ 611 $ — $ 186,210 Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period $ 1,965 $ (185 ) $ 96 $ 375 $ — $ 2,251 Three Months Ended March 31, 2017 Beginning balance $ 208,868 $ 28,793 $ 6,693 $ — $ — $ 244,354 Transfers into Level III 19,844 — — — — 19,844 Transfers out of Level III (41,469 ) — — — — (41,469 ) Purchases 15,008 16,199 — — — 31,207 Sales (24,134 ) (6,416 ) (116 ) — — (30,666 ) Realized gains (losses), net 104 195 87 — — 386 Unrealized appreciation (depreciation), net 859 162 (19 ) — — 1,002 Ending balance $ 179,080 $ 38,933 $ 6,645 $ — $ — $ 224,658 Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period $ 447 $ 162 $ (19 ) $ — $ — $ 590 The table below sets forth a summary of changes in the fair value of Level III financial instruments: Three Months Ended March 31, 2018 2017 Corporate Investments Contingent Consideration Liability Corporate Investments Contingent Consideration Liability Beginning balance $ 50,902 $ (18,778 ) $ 74,663 $ (23,567 ) Contributions or additions 1,293 — 156 — Distributions (815 ) — (3,135 ) — Net gain (loss) included in earnings 1,715 2,575 3,757 (601 ) Ending balance $ 53,095 $ (16,203 ) $ 75,441 $ (24,168 ) Net change in unrealized gains (losses) attributable to financial instruments still held at end of period $ 919 $ 2,575 $ 2,261 $ (601 )
Summary of Valuation Techniques and Quantitative Information	The following table sets forth a summary of the valuation techniques and quantitative information utilized in determining the fair value of the consolidated funds’ Level III investments as of March 31, 2018: Investment Type Fair Value Valuation Technique Significant Unobservable (1)(2) Range Weighted Average (3) Credit-oriented investments: Consumer $ 1,819 Discounted cash flow (4) Discount rate 11% – 20% 17% 18,085 Recent market information (5) Quoted prices Not applicable Not applicable 6,201 Recent transaction price (8) Not applicable Not applicable Not applicable Financials: 66,963 Recent market information (5) Quoted prices Not applicable Not applicable Industrials: 7,173 Discounted cash flow (4) Discount rate 6% – 11% 9% 11,842 Recent market information (5) Quoted prices Not applicable Not applicable Information 5,421 Discounted cash flow (4) Discount rate 12% – 13% 13% 10,574 Recent market information (5) Quoted prices Not applicable Not applicable Real estate: 2,764 Discounted cash flow (4) Discount rate 11% – 13% 12% 21,477 Recent market information (5) Quoted prices Not applicable Not applicable Other: 11,683 Discounted cash flow (4) Discount rate 8% – 16% 13% 17,894 Recent market information (5) Quoted prices Not applicable Not applicable Equity investments: 1,253 Discounted cash flow (4) Discount rate 9% – 30% 11% 1,386 Market approach (6) Earnings multiple (7) 4x – 10x 8x 1,675 Recent market information (5) Quoted prices Not applicable Not applicable Total Level III $ 186,210 The following table sets forth a summary of the valuation techniques and quantitative information utilized in determining the fair value of the consolidated funds’ Level III investments as of December 31, 2017: Investment Type Fair Value Valuation Technique Significant Unobservable (1)(2) Range Weighted Average (3) Credit-oriented investments: Financials: $ 53,732 Recent market information (5) Quoted prices Not applicable Not applicable Industrials: 14,563 Discounted cash flow (4) Discount rate 6% – 11% 7% 3,782 Recent market information (5) Quoted prices Not applicable Not applicable Information 5,331 Discounted cash flow (4) Discount rate 11% – 13% 12% 13,965 Recent market information (5) Quoted prices Not applicable Not applicable Real estate: 2,897 Discounted cash flow (4) Discount rate 11% – 13% 12% 22,297 Recent market information (5) Quoted prices Not applicable Not applicable 327 Recent transaction price (8) Not applicable Not applicable Not applicable Other: 15,881 Discounted cash flow (4) Discount rate 8% – 20% 12% 660 Market approach (6) Earnings multiple (7) 8x – 10x 9x 29,452 Recent market information (5) Quoted prices Not applicable Not applicable Equity investments: 378 Market approach (6) Earnings multiple (7) 9x – 11x 10x 1,343 Discounted cash flow (4) Discount rate 11% – 30% 13% 1,707 Recent market information (5) Quoted prices Not applicable Not applicable Real estate investments: Real estate: 121,087 Recent transaction price (8) Not applicable Not applicable Not applicable Total Level III $ 287,402 (1) The discount rate is the significant unobservable input used in the fair-value measurement of performing credit-oriented investments in which the consolidated funds do not have a controlling interest in the underlying issuer, as well as certain equity investments and real estate loan portfolios. An increase (decrease) in the discount rate would result in a lower (higher) fair-value measurement. (2) Multiple of either earnings or underlying assets is the significant unobservable input used in the market approach for the fair-value measurement of distressed credit-oriented investments, credit-oriented investments in which the consolidated funds have a controlling interest in the underlying issuer, equity investments and certain real estate-oriented investments. An increase (decrease) in the multiple would result in a higher (lower) fair-value measurement. (3) The weighted average is based on the fair value of the investments included in the range. (4) A discounted cash-flow method is generally used to value performing credit-oriented investments in which the consolidated funds do not have a controlling interest in the underlying issuer, as well as certain equity investments, real estate-oriented investments and real estate loan portfolios. (5) Certain investments are valued using vendor prices or broker quotes for the subject or similar securities. Generally, investments valued in this manner are classified as Level III because the quoted prices may be indicative in nature for securities that are in an inactive market, may be for similar securities, or may require adjustment for investment-specific factors or restrictions. (6) A market approach is generally used to value distressed investments and investments in which the consolidated funds have a controlling interest in the underlying issuer. (7) Earnings multiples are based on comparable public companies and transactions with comparable companies. The Company typically utilizes multiples of EBITDA; however, in certain cases the Company may use other earnings multiples believed to be most relevant to the investment. The Company typically applies the multiple to trailing twelve-months’ EBITDA. However, in certain cases other earnings measures, such as pro forma EBITDA, may be utilized if deemed to be more relevant. (8) Certain investments are valued based on recent transactions, generally defined as investments purchased or sold within six months of the valuation date. The fair value may also be based on a pending transaction expected to close after the valuation date. The table below sets forth a summary of the valuation techniques and quantitative information utilized in determining the fair value of the Company’s Level III financial instruments: Fair Value as of Significant Unobservable Input Financial Instrument March 31, 2018 December 31, 2017 Valuation Technique Range Weighted Average Corporate investment – Limited partnership interests $ 53,095 $ 50,902 Market approach Not applicable Not applicable Not applicable Contingent consideration liability (16,203 ) (18,778 ) Discounted cash flow Assumed % of total potential contingent payments 0% – 100% 34%
Valuation of Investments and Other Financial Instruments	The table below summarizes the investments and other financial instruments of the consolidated funds by fair-value hierarchy level: As of March 31, 2018 As of December 31, 2017 Level I Level II Level III Total Level I Level II Level III Total Assets Investments: Corporate debt – bank debt $ — $ 4,570,896 $ 94,495 $ 4,665,391 $ — $ 4,340,860 $ 86,999 $ 4,427,859 Corporate debt – all other 1,158 752,477 87,401 841,036 736 805,659 75,388 881,783 Equities – common stock 206,139 34 3,703 209,876 222,439 65 3,427 225,931 Equities – preferred stock 645 89 611 1,345 3,041 338 — 3,379 Real estate — — — — — — 121,588 121,588 Total investments 207,942 5,323,496 186,210 5,717,648 226,216 5,146,922 287,402 5,660,540 Derivatives: Foreign-currency forward contracts — 227 — 227 — 590 — 590 Swaps — 30 — 30 — 49 — 49 Options and futures 89 — — 89 92 — — 92 Total derivatives 89 257 — 346 92 639 — 731 Total assets $ 208,031 $ 5,323,753 $ 186,210 $ 5,717,994 $ 226,308 $ 5,147,561 $ 287,402 $ 5,661,271 Liabilities CLO debt obligations: Senior secured notes (1) $ — $ (3,203,723 ) $ — $ (3,203,723 ) $ — $ (3,107,955 ) $ — $ (3,107,955 ) Subordinated notes (1) — (115,146 ) — (115,146 ) — (111,637 ) — (111,637 ) Total CLO debt obligations — (3,318,869 ) — (3,318,869 ) — (3,219,592 ) — (3,219,592 ) Securities sold short: Equity securities (69,808 ) — — (69,808 ) (86,467 ) — — (86,467 ) Derivatives: Foreign-currency forward contracts — (911 ) — (911 ) — (817 ) — (817 ) Swaps — (203 ) — (203 ) — (136 ) — (136 ) Options and futures (1,077 ) — — (1,077 ) — — — — Total derivatives (1,077 ) (1,114 ) — (2,191 ) — (953 ) — (953 ) Total liabilities $ (70,885 ) $ (3,319,983 ) $ — $ (3,390,868 ) $ (86,467 ) $ (3,220,545 ) $ — $ (3,307,012 ) (1) The fair value of CLO liabilities is classified based on the more observable fair value of CLO assets. Please see notes 2 and 11 for more information.

DERIVATIVES AND HEDGING (Tables

DERIVATIVES AND HEDGING (Tables)	3 Months Ended
	Mar. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary of Net Forward Currency Sell Contracts Under Freestanding Derivatives	The fair value of freestanding derivatives consisted of the following: Assets Liabilities Notional Fair Value Notional Fair Value As of March 31, 2018 Foreign-currency forward contracts $ 220,186 $ 8,659 $ (254,708 ) $ (15,153 ) Cross-currency swap — — (261,548 ) (19,768 ) Total $ 220,186 $ 8,659 $ (516,256 ) $ (34,921 ) As of December 31, 2017 Foreign-currency forward contracts $ 288,451 $ 5,020 $ (242,972 ) $ (13,154 ) Cross-currency swap — — (255,210 ) (7,479 ) Total $ 288,451 $ 5,020 $ (498,182 ) $ (20,633 )
Summary of Impact of Freestanding Derivative Instruments on Condensed Consolidated Statement of Operations	Realized and unrealized gains and losses arising from freestanding derivatives were recorded in the condensed consolidated statements of operations as follows: Three Months Ended March 31, 2018 2017 Investment income $ (12,373 ) $ (873 ) General and administrative expense (1) (3,072 ) (2,683 ) Total $ (15,445 ) $ (3,556 ) (1) To the extent that the Company’s freestanding derivatives are utilized to hedge its foreign-currency exposure to investment income and management fees earned from consolidated funds, the related hedged items are eliminated in consolidation, with the derivative impact (a positive number reflects a reduction in expenses) reflected in consolidated general and administrative expense. Three Months Ended March 31, 2018 2017 Net Realized Gain (Loss) on Investments Net Change in Unrealized Appreciation (Depreciation) on Investments Net Realized Gain (Loss) on Investments Net Change in Unrealized Appreciation (Depreciation) on Investments Foreign-currency forward contracts 1,439 (711 ) 179 (314 ) Total-return and interest-rate swaps 20 (86 ) (746 ) 1,235 Options and futures 1,818 (1,073 ) (2,044 ) 190 Total $ 3,277 $ (1,870 ) $ (2,611 ) $ 1,111
Balance Sheet Offsetting Assets	The table below sets forth the setoff rights and related arrangements associated with derivatives held by the Company. The “gross amounts not offset in statements of financial condition” columns represent derivatives that management has elected not to offset in the consolidated statements of financial condition even though they are eligible to be offset in accordance with applicable accounting guidance. Gross and Net Amounts of Assets (Liabilities) Presented Gross Amounts Not Offset in Statements of Financial Condition Net Amount As of March 31, 2018 Derivative Assets (Liabilities) Cash Collateral Received (Pledged) Derivative Assets: Foreign-currency forward contracts $ 8,659 $ 8,659 $ — $ — Derivative assets of consolidated funds: Foreign-currency forward contracts 227 111 — 116 Total-return and interest-rate swaps 30 30 — — Options and futures 89 — — 89 Subtotal 346 141 — 205 Total $ 9,005 $ 8,800 $ — $ 205 Derivative Liabilities: Foreign-currency forward contracts $ (15,153 ) $ (8,659 ) $ — $ (6,494 ) Cross-currency swap (19,768 ) — — (19,768 ) Subtotal (34,921 ) (8,659 ) — (26,262 ) Derivative liabilities of consolidated funds: Foreign-currency forward contracts (911 ) (111 ) — (800 ) Total-return and interest-rate swaps (203 ) (30 ) — (173 ) Options and futures (1,077 ) — (1,077 ) — Subtotal (2,191 ) (141 ) (1,077 ) (973 ) Total $ (37,112 ) $ (8,800 ) $ (1,077 ) $ (27,235 ) Gross and Net Amounts of Assets (Liabilities) Presented Gross Amounts Not Offset in Statements of Financial Condition Net Amount As of December 31, 2017 Derivative Assets (Liabilities) Cash Collateral Received (Pledged) Derivative Assets: Foreign-currency forward contracts $ 5,020 $ 5,020 $ — $ — Derivative assets of consolidated funds: Foreign-currency forward contracts 590 115 — 475 Total-return and interest-rate swaps 49 49 — — Options and futures 92 — — 92 Subtotal 731 164 — 567 Total $ 5,751 $ 5,184 $ — $ 567 Derivative Liabilities: Foreign-currency forward contracts $ (13,154 ) $ (5,020 ) $ — $ (8,134 ) Cross-currency swap (7,479 ) — — (7,479 ) Subtotal (20,633 ) (5,020 ) — (15,613 ) Derivative liabilities of consolidated funds: Foreign-currency forward contracts (817 ) (115 ) — (702 ) Total-return and interest-rate swaps (136 ) (49 ) (87 ) — Subtotal (953 ) (164 ) (87 ) (702 ) Total $ (21,586 ) $ (5,184 ) $ (87 ) $ (16,315 )
Balance Sheet Offsetting Liabilities	The table below sets forth the setoff rights and related arrangements associated with derivatives held by the Company. The “gross amounts not offset in statements of financial condition” columns represent derivatives that management has elected not to offset in the consolidated statements of financial condition even though they are eligible to be offset in accordance with applicable accounting guidance. Gross and Net Amounts of Assets (Liabilities) Presented Gross Amounts Not Offset in Statements of Financial Condition Net Amount As of March 31, 2018 Derivative Assets (Liabilities) Cash Collateral Received (Pledged) Derivative Assets: Foreign-currency forward contracts $ 8,659 $ 8,659 $ — $ — Derivative assets of consolidated funds: Foreign-currency forward contracts 227 111 — 116 Total-return and interest-rate swaps 30 30 — — Options and futures 89 — — 89 Subtotal 346 141 — 205 Total $ 9,005 $ 8,800 $ — $ 205 Derivative Liabilities: Foreign-currency forward contracts $ (15,153 ) $ (8,659 ) $ — $ (6,494 ) Cross-currency swap (19,768 ) — — (19,768 ) Subtotal (34,921 ) (8,659 ) — (26,262 ) Derivative liabilities of consolidated funds: Foreign-currency forward contracts (911 ) (111 ) — (800 ) Total-return and interest-rate swaps (203 ) (30 ) — (173 ) Options and futures (1,077 ) — (1,077 ) — Subtotal (2,191 ) (141 ) (1,077 ) (973 ) Total $ (37,112 ) $ (8,800 ) $ (1,077 ) $ (27,235 ) Gross and Net Amounts of Assets (Liabilities) Presented Gross Amounts Not Offset in Statements of Financial Condition Net Amount As of December 31, 2017 Derivative Assets (Liabilities) Cash Collateral Received (Pledged) Derivative Assets: Foreign-currency forward contracts $ 5,020 $ 5,020 $ — $ — Derivative assets of consolidated funds: Foreign-currency forward contracts 590 115 — 475 Total-return and interest-rate swaps 49 49 — — Options and futures 92 — — 92 Subtotal 731 164 — 567 Total $ 5,751 $ 5,184 $ — $ 567 Derivative Liabilities: Foreign-currency forward contracts $ (13,154 ) $ (5,020 ) $ — $ (8,134 ) Cross-currency swap (7,479 ) — — (7,479 ) Subtotal (20,633 ) (5,020 ) — (15,613 ) Derivative liabilities of consolidated funds: Foreign-currency forward contracts (817 ) (115 ) — (702 ) Total-return and interest-rate swaps (136 ) (49 ) (87 ) — Subtotal (953 ) (164 ) (87 ) (702 ) Total $ (21,586 ) $ (5,184 ) $ (87 ) $ (16,315 )

FIXED ASSETS (Tables)

FIXED ASSETS (Tables)	3 Months Ended
	Mar. 31, 2018
Property, Plant and Equipment [Abstract]
FIXED ASSETS	The following table sets forth the Company’s fixed assets and accumulated depreciation: As of March 31, 2018 December 31, 2017 Furniture, equipment and capitalized software $ 25,994 $ 25,618 Leasehold improvements 67,913 66,940 Corporate aircraft 66,120 66,120 Other 5,309 5,229 Fixed assets 165,336 163,907 Accumulated depreciation (56,618 ) (53,744 ) Fixed assets, net $ 108,718 $ 110,163

GOODWILL AND INTANGIBLES (Table

GOODWILL AND INTANGIBLES (Tables)	3 Months Ended
	Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND INTANGIBLES	The following table summarizes the carrying value of intangible assets: As of March 31, 2018 December 31, 2017 Contractual rights $ 347,452 $ 347,452 Accumulated amortization (20,448 ) (16,301 ) Intangible assets, net $ 327,004 $ 331,151

DEBT OBLIGATIONS AND CREDIT F36

DEBT OBLIGATIONS AND CREDIT FACILITIES (Tables)	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Debt Obligations	The Company’s debt obligations are set forth below: As of March 31, 2018 December 31, 2017 $250,000, 3.78%, issued in December 2017, payable on December 18, 2032 $ 250,000 $ 250,000 $250,000, variable-rate term loan, issued in March 2014, payable on March 29, 2023 (1) 150,000 150,000 $50,000, 3.91%, issued in September 2014, payable on September 3, 2024 50,000 50,000 $100,000, 4.01%, issued in September 2014, payable on September 3, 2026 100,000 100,000 $100,000, 4.21%, issued in September 2014, payable on September 3, 2029 100,000 100,000 $100,000, 3.69%, issued in July 2016, payable on July 12, 2031 100,000 100,000 Total remaining principal 750,000 750,000 Less: Debt issuance costs (4,454 ) (3,726 ) Debt obligations $ 745,546 $ 746,274 (1) On March 29, 2018, the credit facility was amended to among other things, extend the maturity date from March 31, 2021 to March 29, 2023, favorably update the commitment fee in the corporate ratings-based pricing grid and increase the permitted combined leverage ratio to a ratio of 3:50 to 1:00. The credit facility consists of a $150 million term loan and a $500 million revolving credit facility. Borrowings generally bear interest at a spread to either LIBOR or an alternative base rate. Based on the current credit ratings of Oaktree Capital Management, L.P., the interest rate on borrowings is LIBOR plus 1.00% per annum and the commitment fee on the unused portions of the revolving credit facility is 0.10% per annum. The credit agreement contains customary financial covenants and restrictions, including ones regarding a maximum leverage ratio and a minimum required level of assets under management (as defined in the credit agreement, as amended above). As of March 31, 2018, the Company had no outstanding borrowings under the revolving credit facility.
Future Principal Payments of Debt Obligations	As of March 31, 2018, future scheduled principal or par value payments with respect to the debt obligations of CLOs were as follows: Last nine months of 2018 $ 99,729 2019 — 2020 — 2021 — 2022 — Thereafter 3,144,310 Total $ 3,244,039 As of March 31, 2018, future scheduled principal payments of debt obligations were as follows: Last nine months of 2018 $ — 2019 — 2020 — 2021 — 2022 — Thereafter 750,000 Total $ 750,000
Schedule of Collateralized Loan Obligation	Outstanding debt obligations of CLOs were as follows: As of March 31, 2018 As of December 31, 2017 Fair Value (1) Weighted Average Interest Rate Weighted Average Remaining Maturity (years) Fair Value (1) Weighted Average Interest Rate Weighted Average Remaining Maturity (years) Senior secured notes $ 3,203,723 2.36% 10.2 $ 3,107,955 2.18% 10.7 Subordinated note (2) 115,146 N/A 10.6 111,637 N/A 10.8 Total CLO debt obligations $ 3,318,869 $ 3,219,592 (1) The fair value of CLO liabilities was measured as the fair value of CLO assets less the sum of (a) the fair value of any beneficial interests held by the Company and (b) the carrying value of any beneficial interests that represent compensation for services. Please see notes 2 and 7 for more information. (2) The subordinated notes do not have a contractual interest rate; instead, they receive distributions from the excess cash flows generated by the CLO. The consolidated funds had the following debt obligations outstanding: Outstanding Amount as of Facility Capacity Weighted Average Interest Rate Weighted Average Remaining Maturity (years) Commitment Fee Rate L/C Fee Credit Agreement March 31, 2018 December 31, 2017 Senior variable rate notes $ 870,098 $ 870,098 $ 870,100 3.32% 10.5 N/A N/A Less: Debt issuance costs (7,164 ) (7,697 ) Total debt obligations, net $ 862,934 $ 862,401

NON-CONTROLLING REDEEMABLE IN37

NON-CONTROLLING REDEEMABLE INTERESTS IN CONSOLIDATED FUNDS (Tables)	3 Months Ended
	Mar. 31, 2018
Non-Controlling Redeemable Interests in Consolidated Funds [Abstract]
Summary of Changes in Non-controlling Redeemable Interests in Consolidated Funds	The following table sets forth a summary of changes in the non-controlling redeemable interests in the consolidated funds. Dividends reinvested and in-kind contributions or distributions are non-cash in nature and have been presented on a gross basis in the table below. Three Months Ended March 31, 2018 2017 Beginning balance $ 860,548 $ 344,047 Initial consolidation of a fund — 70,817 Contributions 59,745 34,786 Distributions (73,523 ) (9,173 ) Net income 10,553 9,003 Change in distributions payable 729 4,098 Foreign currency translation and other 3,812 — Ending balance $ 861,864 $ 453,578

UNITHOLDERS' CAPITAL (Tables)

UNITHOLDERS' CAPITAL (Tables)	3 Months Ended
	Mar. 31, 2018
Stockholders' Equity Note [Abstract]
Summary of Net Income (Loss)	The following table sets forth a summary of net income attributable to the OCGH unitholders’ non-controlling interest and to Class A unitholders: Three Months Ended March 31, 2018 2017 Weighted average Oaktree Operating Group units outstanding (in thousands): OCGH non-controlling interest 88,270 91,644 Class A unitholders 67,918 63,022 Total weighted average units outstanding 156,188 154,666 Oaktree Operating Group net income: Net income attributable to OCGH non-controlling interest $ 73,255 $ 96,598 Net income attributable to Class A unitholders 56,362 66,428 Oaktree Operating Group net income (1) $ 129,617 $ 163,026 Net income attributable to Oaktree Capital Group, LLC: Oaktree Operating Group net income attributable to Class A unitholders $ 56,362 $ 66,428 Non-Operating Group income (expense) 20 (232 ) Income tax expense of Intermediate Holding Companies (3,650 ) (11,281 ) Net income attributable to Oaktree Capital Group, LLC $ 52,732 $ 54,915 (1) Oaktree Operating Group net income does not include amounts attributable to other non-controlling interests, which amounted to $692 and $626 for the three months ended March 31, 2018 and 2017, respectively.
Changes in Company Ownership Interest	The change in the Company’s ownership interest in the Oaktree Operating Group is set forth below: Three Months Ended March 31, 2018 2017 Net income attributable to Oaktree Capital Group, LLC $ 52,732 $ 54,915 Equity reallocation between controlling and non-controlling interests 73,830 12,061 Change from net income attributable to Oaktree Capital Group, LLC and transfers from non-controlling interests $ 126,562 $ 66,976

EARNINGS PER UNIT (Tables)

EARNINGS PER UNIT (Tables)	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
Computations of Net Income (Loss) Per Unit	The computation of net income per Class A unit is set forth below: Three Months Ended March 31, 2018 2017 Net income per Class A unit (basic and diluted): (in thousands, except per unit amounts) Net income attributable to Oaktree Capital Group, LLC $ 52,732 $ 54,915 Weighted average number of Class A units outstanding (basic and diluted) 67,918 63,022 Basic and diluted net income per Class A unit $ 0.78 $ 0.87

EQUITY-BASED COMPENSATION (Tabl

EQUITY-BASED COMPENSATION (Tables)	3 Months Ended
	Mar. 31, 2018
Share-based Compensation [Abstract]
Summary of Unvested Equity-Based Awards and Changes	A summary of the status of the Company’s unvested Class A and OCGH unit awards and changes for the period presented are set forth below (actual dollars per unit): Class A Units OCGH Units (1) Number of Units Weighted Average Grant Date Fair Value Number of Units Weighted Average Grant Date Fair Value Balance, December 31, 2017 2,556,316 $ 44.05 2,158,835 $ 39.79 Granted 1,150,196 39.60 113,801 31.68 Vested (863,389 ) 42.53 (282,028 ) 37.61 Forfeited (65,225 ) 39.72 — — Balance, March 31, 2018 2,777,898 $ 42.78 1,990,608 $ 39.63 (1) Excludes certain performance-based awards that could result in the issuance of up to 340,000 OCGH units, which would vest over periods of four to ten years from date of issuance. Though no units have been issued to date under these arrangements, as of March 31, 2018 the Company expected to recognize compensation expense on 120,000 unvested OCGH performance awards of $ 3.8 million over a weighted average period of 5.0 years under applicable accounting rules.

INCOME TAXES AND RELATED PAYM41

INCOME TAXES AND RELATED PAYMENTS (Tables)	3 Months Ended
	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Expected Estimated Future Payments to OCGH Agreements	Assuming no further material changes in the relevant tax law and that the Company earns sufficient taxable income to realize the full tax benefit of the increased amortization of the assets, the expected estimated future payments to OCGH unitholders under the tax receivable agreement, as of March 31, 2018, are set forth below: Transaction Total Future Payments Payments Through Fiscal Year 2007 Private Offering $ 17,339 2029 Initial public offering 36,767 2034 May 2013 Offering 51,122 2035 March 2014 Offering 38,557 2036 March 2015 Offering 32,498 2037 February 2018 Offering 34,288 2040 Total $ 210,571

RELATED-PARTY TRANSACTIONS (Tab

RELATED-PARTY TRANSACTIONS (Tables)	3 Months Ended
	Mar. 31, 2018
Related Party Transactions [Abstract]
Amounts Due from and Due to Affiliates	The fair value of amounts due to affiliates approximated $108,417 and $93,772 as of March 31, 2018 and December 31, 2017, respectively, based on a discount rate of 10.0% . As of March 31, 2018 December 31, 2017 Due from affiliates: Loans $ 6,951 $ 9,239 Amounts due from unconsolidated funds 55,873 57,155 Management fees and incentive income due from unconsolidated funds 86,265 152,959 Payments made on behalf of unconsolidated entities 4,310 3,784 Non-interest bearing advances made to certain non-controlling interest holders and employees 26 87 Total due from affiliates $ 153,425 $ 223,224 Due to affiliates: Due to OCGH unitholders in connection with the tax receivable agreement (please see note 16) $ 210,571 $ 176,283 Amounts due to senior executives, certain non-controlling interest holders and employees 1,165 1,590 Total due to affiliates $ 211,736 $ 177,873

ORGANIZATION AND BASIS OF PRE43

ORGANIZATION AND BASIS OF PRESENTATION (Details)	3 Months Ended
	Mar. 31, 2018partnership_interestvote
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Limited liability company (LLC) ownership interest	100.00%
Number of partnership interests | partnership_interest	1
Number of votes per class A unit	1
Number of votes per class B unit	10

SUMMARY OF SIGNIFICANT ACCOUN44

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Jan. 01, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Aggregate minimum lease payments under lease obligations	$ 155,000
Unitholders' capital	$ 99,789	$ 80,128
Minimum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Withdrawal period	1 month
Maximum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Withdrawal period	3 years
Contractual Rights to Earn Future Fee Income | Minimum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Useful lives		7 years
Contractual Rights to Earn Future Fee Income | Maximum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Useful lives		25 years
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Unitholders' capital			$ 48,700

ACQUISITIONS (Details)

ACQUISITIONS (Details) - Fifth Street Management LLC $ in Millions	Oct. 17, 2017USD ($)company
Asset Acquisitions [Line Items]
Number of companies acquired | company	2
Cash purchase price	$ 320
Net purchase price	319.4
Finite-lived contractual rights	319.4
Indemnification assets	56.2
Contingent liabilities	$ 56.2

REVENUES - Additional Informati

REVENUES - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Jan. 01, 2018	Dec. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Unitholders' capital	$ 99,789			$ 80,128
Management fees	185,415	$ 180,928
Incentive income	$ 151,906	$ 108,657
Closed-end Incentive Income
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Percentage of fund profits	20.00%
Preferred return	8.00%
Evergreen Incentive Income
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Percentage of fund profits	20.00%
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Unitholders' capital			$ 48,700
Management fees	$ 4,200
Incentive income	$ (47,000)

REVENUES - Revenues Disaggrega

REVENUES - Revenues Disaggregated by Fund Structure (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Closed-end Management Fees
Disaggregation of Revenue [Line Items]
Revenues	$ 123,387	$ 127,721
Open-end Management Fees
Disaggregation of Revenue [Line Items]
Revenues	37,552	39,945
Evergreen Management Fees
Disaggregation of Revenue [Line Items]
Revenues	24,476	13,262
Management Fees
Disaggregation of Revenue [Line Items]
Revenues	185,415	180,928
Closed-end Incentive Income
Disaggregation of Revenue [Line Items]
Revenues	$ 151,906	$ 108,657

REVENUES - Contract Balances (D

REVENUES - Contract Balances (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Revenue from Contract with Customer [Abstract]
Receivables	$ 62,265	$ 98,738
Contract assets	24,000	54,221
Contract liabilities	(23,592)	$ (25,297)
Revenue recognized from amounts included in contract liability balance	$ 17,900

VARIABLE INTEREST ENTITIES - Ad

VARIABLE INTEREST ENTITIES - Additional Information (Details) - Consolidated VIEs $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2018USD ($)entity	Dec. 31, 2017entity
Variable Interest Entity
Number of VIE's consolidated (in entity)	20	21
VIE consolidated assets | $	$ 6,000
VIE consolidated liabilities | $	4,700
Maximum loss exposure | $	$ 485.1
Funds Managed by Oaktree
Variable Interest Entity
Number of VIE's consolidated (in entity)	11
CLO's for Which Oaktree Acts as Collateral Manager
Variable Interest Entity
Number of VIE's consolidated (in entity)	8
Consolidated Funds Formed to Satisfy Risk Retention Requirements
Variable Interest Entity
Number of VIE's consolidated (in entity)	2
CLO not Priced
Variable Interest Entity
Number of VIE's consolidated (in entity)	1
Remaining Variable Interest Entities
Variable Interest Entity
Number of VIE's consolidated (in entity)	19

VARIABLE INTEREST ENTITIES - VI

VARIABLE INTEREST ENTITIES - VIEs Not Consolidated (Details) - Unconsolidated VIEs - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Variable Interest Entity
Maximum exposure to loss	$ 998,614	$ 1,090,956
Corporate investments
Variable Interest Entity
Assets and liabilities, net	911,132	930,699
Due from affiliates
Variable Interest Entity
Assets and liabilities, net	$ 87,482	$ 160,257

INVESTMENTS - Corporate investm

INVESTMENTS - Corporate investments (Details) - Oaktree Capital Group Excluding Consolidated Funds - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Investment [Line Items]
Other investments, at fair value	$ 56,377	$ 50,778
Total corporate investments	1,002,201	1,009,631
Funds
Investment [Line Items]
Equity-method investments	910,479	916,559
Companies
Investment [Line Items]
Equity-method investments	$ 35,345	$ 42,294

INVESTMENTS - Investment income

INVESTMENTS - Investment income (loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Schedule of Equity Method Investments [Line Items]
Other investments, at fair value	$ (10,841)	$ 1,636
Total investment income	34,563	50,451
Funds
Schedule of Equity Method Investments [Line Items]
Equity-method investments	27,266	32,921
Companies
Schedule of Equity Method Investments [Line Items]
Equity-method investments	$ 18,138	$ 15,894

INVESTMENTS - Additional Inform

INVESTMENTS - Additional Information (Details)	Mar. 31, 2018
Maximum
Schedule of Equity Method Investments [Line Items]
Ownership percentage	2.50%

INVESTMENTS - Equity-method Inv

INVESTMENTS - Equity-method Investments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Assets:
Cash and cash-equivalents	$ 2,495,772		$ 2,654,311
Investments, at fair value	41,915,841		41,754,054
Other assets	2,051,923		2,116,751
Total assets	46,463,536		46,525,116
Liabilities and Capital:
Debt obligations	8,064,952		8,393,314
Other liabilities	2,184,074		2,264,579
Total liabilities	10,249,026		10,657,893
Total capital	36,214,510		35,867,223
Total liabilities and capital	46,463,536		$ 46,525,116
Statements of Operations
Revenues / investment income	477,491	$ 520,610
Interest expense	(67,230)	(47,014)
Other expenses	(201,436)	(211,158)
Net realized and unrealized gain on investments	530,361	924,551
Net income	$ 739,186	$ 1,186,989

INVESTMENTS - Other Investments

INVESTMENTS - Other Investments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Investment [Line Items]
Realized gain (loss)	$ 14,599	$ (1,872)
Net change in unrealized gain (loss)	(14,386)	24,678
Total gain (loss)	213	22,806
Other Investments at Fair Value
Investment [Line Items]
Realized gain (loss)	796	1,496
Net change in unrealized gain (loss)	(11,637)	140
Total gain (loss)	$ (10,841)	$ 1,636

INVESTMENTS - Fair Value (Detai

INVESTMENTS - Fair Value (Details) - Consolidated Funds - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 5,506,427	$ 5,309,642
Equity securities	211,221	229,310
Real estate securities	$ 0	$ 121,588
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	96.30%	93.80%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	3.70%	4.10%
Real estate securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.00%	2.10%
Investments, at fair value	$ 5,717,648	$ 5,660,540
Investments, at fair value, Fair Value as a Percentage of Investments of Consolidated Funds	100.00%	100.00%
Total securities sold short, at fair value	$ (69,808)	$ (86,467)
United States
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	3,234,422	3,285,962
Equity securities	5,322	7,828
Real estate securities	$ 0	$ 121,588
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	56.60%	58.20%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.10%	0.10%
Real estate securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.00%	2.10%
United States | Consumer discretionary
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 796,820	$ 796,681
Equity securities	$ 1,397	$ 1,778
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	13.90%	14.00%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.10%	0.00%
United States | Consumer staples
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 114,094	$ 100,863
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	2.00%	1.80%
United States | Energy
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 126,046	$ 106,414
Equity securities	$ 554	$ 649
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	2.20%	1.90%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.00%	0.00%
United States | Financials
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 153,572	$ 161,807
Equity securities	$ 725	$ 3,061
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	2.70%	2.90%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.00%	0.10%
United States | Government
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 1,534	$ 3,033
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.00%	0.10%
United States | Health care
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 400,027	$ 416,779
Equity securities	$ 1,364	$ 527
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	7.00%	7.40%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.00%	0.00%
United States | Industrials
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 415,020	$ 441,440
Equity securities	$ 175	$ 316
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	7.30%	7.80%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.00%	0.00%
United States | Information technology
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 474,554	$ 431,010
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	8.30%	7.60%
United States | Materials
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 364,346	$ 384,310
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	6.40%	6.80%
United States | Real estate
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 131,746	$ 146,836
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	2.30%	2.60%
United States | Telecommunication services
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 161,496	$ 178,984
Equity securities	$ 0	$ 305
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	2.80%	3.20%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.00%	0.00%
United States | Utilities
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 95,167	$ 117,805
Equity securities	$ 1,107	$ 1,192
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	1.70%	2.10%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.00%	0.00%
Europe
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 2,128,514	$ 1,901,126
Equity securities	$ 12,917	$ 14,909
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	37.20%	33.50%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.20%	0.20%
Europe | Consumer discretionary
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 659,689	$ 573,270
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	11.50%	10.10%
Europe | Consumer staples
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 155,063	$ 121,636
Equity securities	$ 1,057	$ 1,449
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	2.70%	2.10%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.00%	0.00%
Europe | Energy
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 8,919	$ 5,929
Equity securities	$ 4,377	$ 3,827
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.20%	0.10%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.10%	0.10%
Europe | Financials
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 40,008	$ 40,130
Equity securities	$ 5,536	$ 7,410
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.70%	0.70%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.10%	0.10%
Europe | Health care
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 368,119	$ 333,693
Equity securities	$ 858	$ 601
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	6.40%	5.90%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.00%	0.00%
Europe | Industrials
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 194,467	$ 163,972
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	3.40%	2.90%
Europe | Information technology
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 121,296	$ 95,409
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	2.10%	1.70%
Europe | Materials
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 279,123	$ 267,252
Equity securities	$ 1,089	$ 1,622
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	4.90%	4.70%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.00%	0.00%
Europe | Real estate
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 13,562	$ 12,528
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.20%	0.20%
Europe | Telecommunication services
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 285,254	$ 278,358
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	5.00%	4.90%
Europe | Utilities
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 3,014	$ 8,949
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.10%	0.20%
Asia and other
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 143,491	$ 122,554
Equity securities	$ 192,982	$ 206,573
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	2.50%	2.10%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	3.40%	3.80%
Asia and other | Consumer discretionary
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 16,020	$ 30,332
Equity securities	$ 22,577	$ 29,026
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.30%	0.50%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.40%	0.50%
Asia and other | Consumer staples
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 3,850	$ 748
Equity securities	$ 9,462	$ 7,279
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.10%	0.00%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.20%	0.10%
Asia and other | Energy
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 9,635	$ 10,175
Equity securities	$ 6,670	$ 5,551
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.20%	0.20%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.10%	0.10%
Asia and other | Financials
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 31,607	$ 20,362
Equity securities	$ 56,818	$ 58,632
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.50%	0.40%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	1.10%	1.20%
Asia and other | Health care
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 6,337	$ 13,806
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.10%	0.20%
Asia and other | Industrials
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 42,317	$ 22,935
Equity securities	$ 31,445	$ 34,019
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.70%	0.40%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.60%	0.70%
Asia and other | Information technology
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 233	$ 536
Equity securities	$ 19,897	$ 23,900
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.00%	0.00%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.30%	0.40%
Asia and other | Materials
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 10,622	$ 8,515
Equity securities	$ 18,923	$ 28,590
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.20%	0.20%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.30%	0.50%
Asia and other | Real estate
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 6,270	$ 6,272
Equity securities	$ 17,303	$ 15,339
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.10%	0.10%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.30%	0.30%
Asia and other | Telecommunication services
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 15,543	$ 8,104
Equity securities	$ 2,148	$ 1,735
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.30%	0.10%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.00%	0.00%
Asia and other | Utilities
Schedule Of Investments In Marketable Securities [Line Items]
Debt securities	$ 1,057	$ 769
Equity securities	$ 7,739	$ 2,502
Debt securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.00%	0.00%
Equity securities, Fair Value as a Percentage of Investments of Consolidated Funds	0.10%	0.00%

INVESTMENTS - Fair Value, Addit

INVESTMENTS - Fair Value, Additional Information (Details) - Consolidated Funds - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Schedule Of Investments In Marketable Securities [Line Items]
Securities sold short, proceeds	$ 66,783	$ 82,502
United States
Schedule Of Investments In Marketable Securities [Line Items]
Total debt securities, cost	3,210,058	3,284,346
Total equity securities, cost	6,199	8,102
Real Estate Estate Securities, Excluding Debt Securities, Cost	0	121,582
Europe
Schedule Of Investments In Marketable Securities [Line Items]
Total debt securities, cost	2,130,240	1,894,727
Total equity securities, cost	9,632	12,787
Asia and other
Schedule Of Investments In Marketable Securities [Line Items]
Total debt securities, cost	145,078	124,723
Total equity securities, cost	$ 189,517	$ 185,164

INVESTMENTS - Net Gains (Losses

INVESTMENTS - Net Gains (Losses) from Investment Activities of Consolidated Funds (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Gain (Loss) on Investments [Line Items]
Net realized gain (loss) on consolidated funds’ investments	$ 14,599	$ (1,872)
Net change in unrealized appreciation (depreciation) on consolidated funds’ investments	(14,386)	24,678
Consolidated Funds | Not Designated as Hedging Instrument
Gain (Loss) on Investments [Line Items]
Net realized gain (loss) on consolidated funds’ investments	14,599	(1,872)
Net change in unrealized appreciation (depreciation) on consolidated funds’ investments	(14,386)	24,678
Net Realized Gain (Loss) on Investments	3,277	(2,611)
Net Change in Unrealized Appreciation (Depreciation) on Investments	(1,870)	1,111
Consolidated Funds | Investments and other financial instruments | Not Designated as Hedging Instrument
Gain (Loss) on Investments [Line Items]
Net realized gain (loss) on consolidated funds’ investments	11,322	739
Net change in unrealized appreciation (depreciation) on consolidated funds’ investments	(30,588)	3,736
Consolidated Funds | CLO Liabilities | Not Designated as Hedging Instrument
Gain (Loss) on Investments [Line Items]
Net realized gain (loss) on consolidated funds’ investments	0	0
Net change in unrealized appreciation (depreciation) on consolidated funds’ investments	18,072	19,831
Consolidated Funds | Foreign-currency forward contracts | Not Designated as Hedging Instrument
Gain (Loss) on Investments [Line Items]
Net Realized Gain (Loss) on Investments	1,439	179
Net Change in Unrealized Appreciation (Depreciation) on Investments	(711)	(314)
Consolidated Funds | Total-return and interest-rate swaps | Not Designated as Hedging Instrument
Gain (Loss) on Investments [Line Items]
Net Realized Gain (Loss) on Investments	20	(746)
Net Change in Unrealized Appreciation (Depreciation) on Investments	(86)	1,235
Consolidated Funds | Options and futures | Not Designated as Hedging Instrument
Gain (Loss) on Investments [Line Items]
Net Realized Gain (Loss) on Investments	1,818	(2,044)
Net Change in Unrealized Appreciation (Depreciation) on Investments	$ (1,073)	$ 190

FAIR VALUE - Financial Instrume

FAIR VALUE - Financial Instruments by Fair-value Hierarchy Level (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	$ 9,005	$ 5,751
Derivative liabilities	(37,112)	(21,586)
Oaktree Capital Group Excluding Consolidated Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
U.S. Treasury and other securities	229,274	176,602
Corporate investments	1,002,201	1,009,631
Derivative liabilities	(34,921)	(20,633)
Oaktree Capital Group Excluding Consolidated Funds | Cross-currency swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	(19,768)	(7,479)
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	295,283	234,357
Total liabilities	(51,124)	(39,411)
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Contingent consideration liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	(16,203)	(18,778)
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Foreign-currency forward contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	8,659	5,020
Derivative liabilities	(15,153)	(13,154)
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Cross-currency swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	(19,768)	(7,479)
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | U.S. Treasury and other securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
U.S. Treasury and other securities	229,274	176,602
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Corporate investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Corporate investments	57,350	52,735
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Level I
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	229,274	176,602
Total liabilities	0	0
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Level I | Contingent consideration liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	0	0
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Level I | Foreign-currency forward contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Derivative liabilities	0	0
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Level I | Cross-currency swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	0	0
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Level I | U.S. Treasury and other securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
U.S. Treasury and other securities	229,274	176,602
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Level I | Corporate investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Corporate investments	0	0
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Level II
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	12,914	6,853
Total liabilities	(34,921)	(20,633)
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Level II | Contingent consideration liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	0	0
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Level II | Foreign-currency forward contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	8,659	5,020
Derivative liabilities	(15,153)	(13,154)
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Level II | Foreign-currency forward contracts | Corporate investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	(973)	(1,957)
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Level II | Cross-currency swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	(19,768)	(7,479)
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Level II | U.S. Treasury and other securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
U.S. Treasury and other securities	0	0
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Level II | Corporate investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Corporate investments	4,255	1,833
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Level III
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	53,095	50,902
Total liabilities	(16,203)	(18,778)
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Level III | Contingent consideration liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	(16,203)	(18,778)
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Level III | Foreign-currency forward contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Derivative liabilities	0	0
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Level III | Cross-currency swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	0	0
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Level III | U.S. Treasury and other securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
U.S. Treasury and other securities	0	0
Oaktree Capital Group Excluding Consolidated Funds | Fair Value, Measurements, Recurring | Level III | Corporate investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Corporate investments	$ 53,095	$ 50,902

FAIR VALUE - Changes in Fair Va

FAIR VALUE - Changes in Fair Value (Details) - Oaktree Capital Group Excluding Consolidated Funds - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Corporate Investments
Beginning balance	$ 50,902	$ 74,663
Contributions or additions	1,293	156
Distributions	(815)	(3,135)
Net gain (loss) included in earnings	1,715	3,757
Ending balance	53,095	75,441
Net change in unrealized gains (losses) attributable to financial instruments still held at end of period	919	2,261
Contingent Consideration Liability
Beginning balance	(18,778)	(23,567)
Contributions or additions	0	0
Distributions	0	0
Net gain (loss) included in earnings	2,575	(601)
Ending balance	(16,203)	(24,168)
Net change in unrealized gains (losses) attributable to financial instruments still held at end of period	$ 2,575	$ (601)

FAIR VALUE - Valuation Techniqu

FAIR VALUE - Valuation Techniques (Details) - Oaktree Capital Group Excluding Consolidated Funds - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	$ 56,377	$ 50,778
Corporate investment – Limited partnership interests | Market approach (value of underlying assets) | Level III
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	53,095	50,902
Contingent consideration liability | Discounted cash flow | Level III
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent consideration liability	$ (16,203)	$ (18,778)
Minimum | Contingent consideration liability | Discounted cash flow | Level III
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount rate	0.00%
Maximum | Contingent consideration liability | Discounted cash flow | Level III
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount rate	100.00%
Weighted Average | Contingent consideration liability | Discounted cash flow | Level III
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount rate	34.00%

FAIR VALUE - Consolidated Funds

FAIR VALUE - Consolidated Funds Valuation of Investments and Other Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total derivatives	$ 9,005	$ 5,751
Total CLO debt obligations		(3,219,592)
Total derivatives	(37,112)	(21,586)
Consolidated Funds
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	5,717,648	5,660,540
Total derivatives	346	731
Total CLO debt obligations	(3,318,869)
Equity securities	(69,808)	(86,467)
Total derivatives	(2,191)	(953)
Consolidated Funds | Options and futures
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total derivatives	89	92
Total derivatives	(1,077)
Consolidated Funds | Level III
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	186,210	287,402
Consolidated Funds | Fair Value, Measurements, Recurring
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	5,717,648	5,660,540
Total derivatives	346	731
Total assets	5,717,994	5,661,271
Total derivatives	(2,191)	(953)
Total liabilities	(3,390,868)	(3,307,012)
Consolidated Funds | Fair Value, Measurements, Recurring | Equity securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Equity securities	(69,808)	(86,467)
Consolidated Funds | Fair Value, Measurements, Recurring | CLO Debt Obligations
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total CLO debt obligations	(3,318,869)	(3,219,592)
Consolidated Funds | Fair Value, Measurements, Recurring | CLO Debt Obligations | Senior secured notes
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total CLO debt obligations	(3,203,723)	(3,107,955)
Consolidated Funds | Fair Value, Measurements, Recurring | CLO Debt Obligations | Subordinated notes
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total CLO debt obligations	(115,146)	(111,637)
Consolidated Funds | Fair Value, Measurements, Recurring | Foreign-currency forward contracts
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total derivatives	227	590
Total derivatives	(911)	(817)
Consolidated Funds | Fair Value, Measurements, Recurring | Swaps
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total derivatives	30	49
Total derivatives	(203)	(136)
Consolidated Funds | Fair Value, Measurements, Recurring | Options and futures
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total derivatives	89	92
Total derivatives	(1,077)	0
Consolidated Funds | Fair Value, Measurements, Recurring | Real estate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	0	121,588
Consolidated Funds | Fair Value, Measurements, Recurring | Corporate debt – bank debt
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	4,665,391	4,427,859
Consolidated Funds | Fair Value, Measurements, Recurring | Corporate debt – all other
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	841,036	881,783
Consolidated Funds | Fair Value, Measurements, Recurring | Equities – common stock
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	209,876	225,931
Consolidated Funds | Fair Value, Measurements, Recurring | Equities – preferred stock
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	1,345	3,379
Consolidated Funds | Fair Value, Measurements, Recurring | Level I
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	207,942	226,216
Total derivatives	89	92
Total assets	208,031	226,308
Total derivatives	(1,077)	0
Total liabilities	(70,885)	(86,467)
Consolidated Funds | Fair Value, Measurements, Recurring | Level I | Equity securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Equity securities	(69,808)	(86,467)
Consolidated Funds | Fair Value, Measurements, Recurring | Level I | CLO Debt Obligations
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total CLO debt obligations	0	0
Consolidated Funds | Fair Value, Measurements, Recurring | Level I | CLO Debt Obligations | Senior secured notes
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total CLO debt obligations	0	0
Consolidated Funds | Fair Value, Measurements, Recurring | Level I | CLO Debt Obligations | Subordinated notes
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total CLO debt obligations	0	0
Consolidated Funds | Fair Value, Measurements, Recurring | Level I | Foreign-currency forward contracts
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total derivatives	0	0
Total derivatives	0	0
Consolidated Funds | Fair Value, Measurements, Recurring | Level I | Swaps
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total derivatives	0	0
Total derivatives	0	0
Consolidated Funds | Fair Value, Measurements, Recurring | Level I | Options and futures
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total derivatives	89	92
Total derivatives	(1,077)	0
Consolidated Funds | Fair Value, Measurements, Recurring | Level I | Real estate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	0	0
Consolidated Funds | Fair Value, Measurements, Recurring | Level I | Corporate debt – bank debt
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	0	0
Consolidated Funds | Fair Value, Measurements, Recurring | Level I | Corporate debt – all other
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	1,158	736
Consolidated Funds | Fair Value, Measurements, Recurring | Level I | Equities – common stock
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	206,139	222,439
Consolidated Funds | Fair Value, Measurements, Recurring | Level I | Equities – preferred stock
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	645	3,041
Consolidated Funds | Fair Value, Measurements, Recurring | Level II
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	5,323,496	5,146,922
Total derivatives	257	639
Total assets	5,323,753	5,147,561
Total derivatives	(1,114)	(953)
Total liabilities	(3,319,983)	(3,220,545)
Consolidated Funds | Fair Value, Measurements, Recurring | Level II | Equity securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Equity securities	0	0
Consolidated Funds | Fair Value, Measurements, Recurring | Level II | CLO Debt Obligations
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total CLO debt obligations	(3,318,869)	(3,219,592)
Consolidated Funds | Fair Value, Measurements, Recurring | Level II | CLO Debt Obligations | Senior secured notes
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total CLO debt obligations	(3,203,723)	(3,107,955)
Consolidated Funds | Fair Value, Measurements, Recurring | Level II | CLO Debt Obligations | Subordinated notes
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total CLO debt obligations	(115,146)	(111,637)
Consolidated Funds | Fair Value, Measurements, Recurring | Level II | Foreign-currency forward contracts
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total derivatives	227	590
Total derivatives	(911)	(817)
Consolidated Funds | Fair Value, Measurements, Recurring | Level II | Swaps
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total derivatives	30	49
Total derivatives	(203)	(136)
Consolidated Funds | Fair Value, Measurements, Recurring | Level II | Options and futures
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total derivatives	0	0
Total derivatives	0	0
Consolidated Funds | Fair Value, Measurements, Recurring | Level II | Real estate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	0	0
Consolidated Funds | Fair Value, Measurements, Recurring | Level II | Corporate debt – bank debt
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	4,570,896	4,340,860
Consolidated Funds | Fair Value, Measurements, Recurring | Level II | Corporate debt – all other
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	752,477	805,659
Consolidated Funds | Fair Value, Measurements, Recurring | Level II | Equities – common stock
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	34	65
Consolidated Funds | Fair Value, Measurements, Recurring | Level II | Equities – preferred stock
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	89	338
Consolidated Funds | Fair Value, Measurements, Recurring | Level III
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	186,210	287,402
Total derivatives	0	0
Total assets	186,210	287,402
Total derivatives	0	0
Total liabilities	0	0
Consolidated Funds | Fair Value, Measurements, Recurring | Level III | Equity securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Equity securities	0	0
Consolidated Funds | Fair Value, Measurements, Recurring | Level III | CLO Debt Obligations
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total CLO debt obligations	0	0
Consolidated Funds | Fair Value, Measurements, Recurring | Level III | CLO Debt Obligations | Senior secured notes
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total CLO debt obligations	0	0
Consolidated Funds | Fair Value, Measurements, Recurring | Level III | CLO Debt Obligations | Subordinated notes
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total CLO debt obligations	0	0
Consolidated Funds | Fair Value, Measurements, Recurring | Level III | Foreign-currency forward contracts
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total derivatives	0	0
Total derivatives	0	0
Consolidated Funds | Fair Value, Measurements, Recurring | Level III | Swaps
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total derivatives	0	0
Total derivatives	0	0
Consolidated Funds | Fair Value, Measurements, Recurring | Level III | Options and futures
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total derivatives	0	0
Total derivatives	0	0
Consolidated Funds | Fair Value, Measurements, Recurring | Level III | Real estate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	0	121,588
Consolidated Funds | Fair Value, Measurements, Recurring | Level III | Corporate debt – bank debt
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	94,495	86,999
Consolidated Funds | Fair Value, Measurements, Recurring | Level III | Corporate debt – all other
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	87,401	75,388
Consolidated Funds | Fair Value, Measurements, Recurring | Level III | Equities – common stock
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	3,703	3,427
Consolidated Funds | Fair Value, Measurements, Recurring | Level III | Equities – preferred stock
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investments	$ 611	$ 0

FAIR VALUE - Consolidated Fun63

FAIR VALUE - Consolidated Funds Summary of Changes in Fair Value of Level III Investments (Details) - Consolidated Funds - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 287,402	$ 244,354
Deconsolidation of funds	(121,087)
Transfers into Level III	26,261	19,844
Transfers out of Level III	(7,836)	(41,469)
Purchases	36,231	31,207
Sales	(37,394)	(30,666)
Realized gains (losses), net	414	386
Unrealized appreciation (depreciation), net	2,219	1,002
Ending balance	186,210	224,658
Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period	2,251	590
Corporate debt – bank debt
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	86,999	208,868
Transfers into Level III	25,164	19,844
Transfers out of Level III	(7,289)	(41,469)
Purchases	4,816	15,008
Sales	(17,472)	(24,134)
Realized gains (losses), net	328	104
Unrealized appreciation (depreciation), net	1,949	859
Ending balance	94,495	179,080
Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period	1,965	447
Corporate debt – all other
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	75,388	28,793
Deconsolidation of funds	0
Transfers into Level III	607	0
Transfers out of Level III	(490)	0
Purchases	31,123	16,199
Sales	(19,110)	(6,416)
Realized gains (losses), net	86	195
Unrealized appreciation (depreciation), net	(203)	162
Ending balance	87,401	38,933
Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period	(185)	162
Equities – common stock
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	3,427	6,693
Deconsolidation of funds	0
Transfers into Level III	490	0
Transfers out of Level III	(57)	0
Purchases	56	0
Sales	(311)	(116)
Realized gains (losses), net		87
Unrealized appreciation (depreciation), net	98	(19)
Ending balance	3,703	6,645
Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period	96	(19)
Equities – Preferred Stock
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	0	0
Deconsolidation of funds	0
Transfers into Level III	0	0
Transfers out of Level III	0	0
Purchases	236	0
Sales		0
Realized gains (losses), net		0
Unrealized appreciation (depreciation), net	375	0
Ending balance	611	0
Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period	375	0
Real estate
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	121,588	0
Deconsolidation of funds	(121,087)
Transfers into Level III	0	0
Transfers out of Level III	0	0
Purchases	0	0
Sales	(501)	0
Realized gains (losses), net		0
Unrealized appreciation (depreciation), net		0
Ending balance	0	0
Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period	$ 0	$ 0

FAIR VALUE - Consolidated Fun64

FAIR VALUE - Consolidated Funds Additional Information (Details) - Consolidated Funds $ in Millions	3 Months Ended
	Mar. 31, 2018USD ($)investment	Mar. 31, 2017USD ($)investment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfer of investments from Level I to Level II | $	$ 0.7	$ 0.4
Number of investments that changed valuation technique | investment	0	0

FAIR VALUE - Consolidated Fun65

FAIR VALUE - Consolidated Funds Summary of Valuation Techniques and Quantitative Information (Details) - Consolidated Funds $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	$ 5,717,648	$ 5,660,540
Level III
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	186,210	287,402
Level III | Credit-oriented investments | Consumer discretionary | Discounted cash flow
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	$ 1,819
Level III | Credit-oriented investments | Consumer discretionary | Discounted cash flow | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	11.00%
Level III | Credit-oriented investments | Consumer discretionary | Discounted cash flow | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	20.00%
Level III | Credit-oriented investments | Consumer discretionary | Discounted cash flow | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	17.00%
Level III | Credit-oriented investments | Consumer discretionary | Recent market information
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	$ 18,085
Level III | Credit-oriented investments | Consumer discretionary | Recent transaction price
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	6,201
Level III | Credit-oriented investments | Financials | Recent market information
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	66,963	53,732
Level III | Credit-oriented investments | Industrials | Discounted cash flow
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	$ 7,173	$ 14,563
Level III | Credit-oriented investments | Industrials | Discounted cash flow | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	6.00%	6.00%
Level III | Credit-oriented investments | Industrials | Discounted cash flow | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	11.00%	11.00%
Level III | Credit-oriented investments | Industrials | Discounted cash flow | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	9.00%	7.00%
Level III | Credit-oriented investments | Industrials | Recent market information
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	$ 11,842	$ 3,782
Level III | Credit-oriented investments | Information technology | Discounted cash flow
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	$ 5,421	$ 5,331
Level III | Credit-oriented investments | Information technology | Discounted cash flow | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	12.00%	11.00%
Level III | Credit-oriented investments | Information technology | Discounted cash flow | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	13.00%	13.00%
Level III | Credit-oriented investments | Information technology | Discounted cash flow | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	13.00%	12.00%
Level III | Credit-oriented investments | Information technology | Recent market information
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	$ 10,574	$ 13,965
Level III | Credit-oriented investments | Real estate | Discounted cash flow
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	$ 2,764	$ 2,897
Level III | Credit-oriented investments | Real estate | Discounted cash flow | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	11.00%	11.00%
Level III | Credit-oriented investments | Real estate | Discounted cash flow | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	13.00%	13.00%
Level III | Credit-oriented investments | Real estate | Discounted cash flow | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	12.00%	12.00%
Level III | Credit-oriented investments | Real estate | Recent market information
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	$ 21,477	$ 22,297
Level III | Credit-oriented investments | Real estate | Recent transaction price
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value		327
Level III | Credit-oriented investments | Other | Discounted cash flow
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	$ 11,683	$ 15,881
Level III | Credit-oriented investments | Other | Discounted cash flow | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	8.00%	8.00%
Level III | Credit-oriented investments | Other | Discounted cash flow | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	16.00%	20.00%
Level III | Credit-oriented investments | Other | Discounted cash flow | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	13.00%	12.00%
Level III | Credit-oriented investments | Other | Recent market information
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	$ 17,894	$ 29,452
Level III | Credit-oriented investments | Other | Market approach (comparable companies)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value		$ 660
Level III | Credit-oriented investments | Other | Market approach (comparable companies) | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple		8
Level III | Credit-oriented investments | Other | Market approach (comparable companies) | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple		10
Level III | Credit-oriented investments | Other | Market approach (comparable companies) | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple		9
Level III | Equity investments | Discounted cash flow
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	$ 1,253	$ 1,343
Level III | Equity investments | Discounted cash flow | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	9.00%	11.00%
Level III | Equity investments | Discounted cash flow | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	30.00%	30.00%
Level III | Equity investments | Discounted cash flow | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	11.00%	13.00%
Level III | Equity investments | Recent market information
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	$ 1,675	$ 1,707
Level III | Equity investments | Market approach (comparable companies)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	$ 1,386	$ 378
Level III | Equity investments | Market approach (comparable companies) | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	4	9
Level III | Equity investments | Market approach (comparable companies) | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	10	11
Level III | Equity investments | Market approach (comparable companies) | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	8	10
Level III | Real estate | Recent transaction price
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value		$ 121,087

DERIVATIVES AND HEDGING - Fair

DERIVATIVES AND HEDGING - Fair Value of Freestanding Derivatives (Details) - Not Designated as Hedging Instrument - Oaktree Capital Group Excluding Consolidated Funds - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Derivative [Line Items]
Assets, Notional	$ 220,186	$ 288,451
Assets, Fair Value	8,659	5,020
Liabilities, Notional	(516,256)	(498,182)
Liabilities, Fair Value	(34,921)	(20,633)
Foreign-currency forward contracts
Derivative [Line Items]
Assets, Notional	220,186	288,451
Assets, Fair Value	8,659	5,020
Liabilities, Notional	(254,708)	(242,972)
Liabilities, Fair Value	(15,153)	(13,154)
Cross-currency swap
Derivative [Line Items]
Assets, Notional	0	0
Assets, Fair Value	0	0
Liabilities, Notional	(261,548)	(255,210)
Liabilities, Fair Value	$ (19,768)	$ (7,479)

DERIVATIVES AND HEDGING - Summa

DERIVATIVES AND HEDGING - Summary of Freestanding Derivative Instruments on Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Gains and losses from freestanding derivative instruments	$ (15,445)	$ (3,556)
Investment income | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gains and losses from freestanding derivative instruments	(12,373)	(873)
General and administrative expense | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gains and losses from freestanding derivative instruments	$ (3,072)	$ (2,683)

DERIVATIVES AND HEDGING - Impac

DERIVATIVES AND HEDGING - Impact of Derivatives Held by Consolidated Funds on Income (Details) - Not Designated as Hedging Instrument - Consolidated Funds - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Derivatives, Fair Value [Line Items]
Net Realized Gain (Loss) on Investments	$ 3,277	$ (2,611)
Net Change in Unrealized Appreciation (Depreciation) on Investments	(1,870)	1,111
Foreign-currency forward contracts
Derivatives, Fair Value [Line Items]
Net Realized Gain (Loss) on Investments	1,439	179
Net Change in Unrealized Appreciation (Depreciation) on Investments	(711)	(314)
Total-return and interest-rate swaps
Derivatives, Fair Value [Line Items]
Net Realized Gain (Loss) on Investments	20	(746)
Net Change in Unrealized Appreciation (Depreciation) on Investments	(86)	1,235
Options and futures
Derivatives, Fair Value [Line Items]
Net Realized Gain (Loss) on Investments	1,818	(2,044)
Net Change in Unrealized Appreciation (Depreciation) on Investments	$ (1,073)	$ 190

DERIVATIVES AND HEDGING - Balan

DERIVATIVES AND HEDGING - Balance Sheet Offsetting (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Derivative Assets:
Derivative assets	$ 9,005	$ 5,751
Gross Amounts Not Offset in Statements of Financial Condition
Derivative Assets	8,800	5,184
Cash Collateral Received	0	0
Net Amount	205	567
Derivative Liabilities:
Derivative liabilities	(37,112)	(21,586)
Gross Amounts Not Offset in Statements of Financial Condition
Derivative Liabilities	(8,800)	(5,184)
Cash Collateral Pledged	(1,077)	(87)
Net Amount	(27,235)	(16,315)
Consolidated Funds
Derivative Assets:
Derivative assets	346	731
Gross Amounts Not Offset in Statements of Financial Condition
Derivative Assets	141	164
Cash Collateral Received	0	0
Net Amount	205	567
Derivative Liabilities:
Derivative liabilities	(2,191)	(953)
Gross Amounts Not Offset in Statements of Financial Condition
Derivative Liabilities	(141)	(164)
Cash Collateral Pledged	(1,077)	(87)
Net Amount	(973)	(702)
Consolidated Funds | Foreign-currency forward contracts
Derivative Assets:
Derivative assets	227	590
Gross Amounts Not Offset in Statements of Financial Condition
Derivative Assets	111	115
Cash Collateral Received	0	0
Net Amount	116	475
Derivative Liabilities:
Derivative liabilities	(911)	(817)
Gross Amounts Not Offset in Statements of Financial Condition
Derivative Liabilities	(111)	(115)
Cash Collateral Pledged	0	0
Net Amount	(800)	(702)
Consolidated Funds | Total-return and interest-rate swaps
Derivative Assets:
Derivative assets	30	49
Gross Amounts Not Offset in Statements of Financial Condition
Derivative Assets	30	49
Cash Collateral Received	0	0
Net Amount	0	0
Derivative Liabilities:
Derivative liabilities	(203)	(136)
Gross Amounts Not Offset in Statements of Financial Condition
Derivative Liabilities	(30)	(49)
Cash Collateral Pledged	0	(87)
Net Amount	(173)	0
Consolidated Funds | Options and futures
Derivative Assets:
Derivative assets	89	92
Gross Amounts Not Offset in Statements of Financial Condition
Derivative Assets	0	0
Cash Collateral Received	0	0
Net Amount	89	92
Derivative Liabilities:
Derivative liabilities	(1,077)
Gross Amounts Not Offset in Statements of Financial Condition
Derivative Liabilities	0
Cash Collateral Pledged	(1,077)
Net Amount	0
Oaktree Capital Group Excluding Consolidated Funds
Derivative Liabilities:
Derivative liabilities	(34,921)	(20,633)
Gross Amounts Not Offset in Statements of Financial Condition
Derivative Liabilities	(8,659)	(5,020)
Cash Collateral Pledged	0	0
Net Amount	(26,262)	(15,613)
Oaktree Capital Group Excluding Consolidated Funds | Foreign-currency forward contracts
Derivative Assets:
Derivative assets	8,659	5,020
Gross Amounts Not Offset in Statements of Financial Condition
Derivative Assets	8,659	5,020
Cash Collateral Received	0	0
Net Amount	0	0
Derivative Liabilities:
Derivative liabilities	(15,153)	(13,154)
Gross Amounts Not Offset in Statements of Financial Condition
Derivative Liabilities	(8,659)	(5,020)
Cash Collateral Pledged	0	0
Net Amount	(6,494)	(8,134)
Oaktree Capital Group Excluding Consolidated Funds | Cross-currency swap
Derivative Liabilities:
Derivative liabilities	(19,768)	(7,479)
Gross Amounts Not Offset in Statements of Financial Condition
Derivative Liabilities	0	0
Cash Collateral Pledged	0	0
Net Amount	$ (19,768)	$ (7,479)

FIXED ASSETS (Details)

FIXED ASSETS (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment
Fixed assets	$ 165,336	$ 163,907
Accumulated depreciation	(56,618)	(53,744)
Fixed assets, net	108,718	110,163
Furniture, equipment and capitalized software
Property, Plant and Equipment
Fixed assets	25,994	25,618
Leasehold improvements
Property, Plant and Equipment
Fixed assets	67,913	66,940
Corporate aircraft
Property, Plant and Equipment
Fixed assets	66,120	66,120
Other
Property, Plant and Equipment
Fixed assets	$ 5,309	$ 5,229

GOODWILL AND INTANGIBLES (Detai

GOODWILL AND INTANGIBLES (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 69,300		$ 69,300
Carrying Value of Intangible Assets
Contractual rights	347,452		347,452
Accumulated amortization	(20,448)		(16,301)
Intangible assets, net	327,004		$ 331,151
Amortization	4,200	$ 1,000
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Remainder of 2018	12,600
2,019	16,800
2,020	16,800
2,021	15,100
2,022	$ 12,800

DEBT OBLIGATIONS AND CREDIT F72

DEBT OBLIGATIONS AND CREDIT FACILITIES - Debt Obligations (Details)	3 Months Ended
	Mar. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Debt Instrument [Line Items]
Less: Debt issuance costs	$ (7,164,000)	$ (7,697,000)
Debt obligations	862,934,000	862,401,000
Oaktree Capital Group Excluding Consolidated Funds
Debt Instrument [Line Items]
Total remaining principal	750,000,000	750,000,000
Less: Debt issuance costs	(4,454,000)	(3,726,000)
Debt obligations	745,546,000	746,274,000
Oaktree Capital Group Excluding Consolidated Funds | Senior secured notes | $250,000, 3.78%, issued in December 2017, payable on December 18, 2032
Debt Instrument [Line Items]
Total remaining principal	250,000,000	250,000,000
Face amount	$ 250,000,000
Stated percentage	3.78%
Oaktree Capital Group Excluding Consolidated Funds | Senior secured notes | $50,000, 3.91%, issued in September 2014, payable on September 3, 2024
Debt Instrument [Line Items]
Total remaining principal	$ 50,000,000	50,000,000
Face amount	$ 50,000,000
Stated percentage	3.91%
Oaktree Capital Group Excluding Consolidated Funds | Senior secured notes | $100,000, 4.01%, issued in September 2014, payable on September 3, 2026
Debt Instrument [Line Items]
Total remaining principal	$ 100,000,000	100,000,000
Face amount	$ 100,000,000
Stated percentage	4.01%
Oaktree Capital Group Excluding Consolidated Funds | Senior secured notes | $100,000, 4.21%, issued in September 2014, payable on September 3, 2029
Debt Instrument [Line Items]
Total remaining principal	$ 100,000,000	100,000,000
Face amount	$ 100,000,000
Stated percentage	4.21%
Oaktree Capital Group Excluding Consolidated Funds | Senior secured notes | $100,000, 3.69%, issued in July 2016, payable on July 12, 2031
Debt Instrument [Line Items]
Total remaining principal	$ 100,000,000	100,000,000
Face amount	$ 100,000,000
Stated percentage	3.69%
Oaktree Capital Group Excluding Consolidated Funds | Credit Agreement | Term Loan
Debt Instrument [Line Items]
Total remaining principal	$ 150,000,000	$ 150,000,000
Face amount	$ 250,000,000
Leverage ratio	3.50
Unused commitment fee	1.00%
Oaktree Capital Group Excluding Consolidated Funds | Credit Agreement | Revolving credit facility
Debt Instrument [Line Items]
Credit facility	$ 500,000,000
Unused commitment fee	0.10%
Borrowings under credit facilities	$ 0

DEBT OBLIGATIONS AND CREDIT F73

DEBT OBLIGATIONS AND CREDIT FACILITIES - Future Principal Payments of Debt Obligations (Details) - Oaktree Capital Group Excluding Consolidated Funds - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Last nine months of 2018	$ 0
2,019	0
2,020	0
2,021	0
2,022	0
Thereafter	750,000
Total	$ 750,000	$ 750,000

DEBT OBLIGATIONS AND CREDIT F74

DEBT OBLIGATIONS AND CREDIT FACILITIES - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Jul. 31, 2017
Debt Instrument [Line Items]
Fair value of debt obligations		$ 3,219,592,000
Consolidated Funds
Debt Instrument [Line Items]
Fair value of debt obligations	$ 3,318,869,000
Total remaining principal	3,244,039,000
Securities owned and pledged as collateral	3,900,000,000	3,900,000,000
Oaktree Capital Group Excluding Consolidated Funds
Debt Instrument [Line Items]
Total remaining principal	750,000,000	750,000,000
Oaktree Capital Group Excluding Consolidated Funds | Level III
Debt Instrument [Line Items]
Fair value of debt obligations	$ 757,300,000	$ 762,700,000
Weighted Average Interest Rate	3.80%	3.60%
Percentage increase in average borrowing rate assumption that would decrease fair value of debt obligation	10.00%
Fair value of debt obligation decrease in value due to increase in average borrowing rate	$ 734,200,000
Percentage decrease in average borrowing rate assumption that would increase fair value of debt obligation	10.00%
Fair value of debt obligation increase in value due to decrease in average borrowing rate	$ 783,000,000
Credit Agreement | Letter of Credit
Debt Instrument [Line Items]
Letter of credit guarantee			$ 17,500,000
Credit Agreement | Senior secured notes
Debt Instrument [Line Items]
Weighted Average Interest Rate	3.32%
Total remaining principal	$ 870,098,000	$ 870,098,000
Credit Agreement | Consolidated Funds
Debt Instrument [Line Items]
Total remaining principal	870,100,000	870,100,000
Credit Agreement | Consolidated Funds | Level III
Debt Instrument [Line Items]
Fair value of debt	$ 872,900,000	$ 872,100,000
Credit Agreement | Maximum | Consolidated Funds | Senior secured notes
Debt Instrument [Line Items]
Term (in years)	10 years

DEBT OBLIGATIONS AND CREDIT F75

DEBT OBLIGATIONS AND CREDIT FACILITIES - Credit Facilities of Consolidated Funds (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Less: Debt issuance costs	$ (7,164,000)	$ (7,697,000)
Debt obligations	862,934,000	862,401,000
Credit Agreement | Senior variable rate notes
Debt Instrument [Line Items]
Senior variable rate notes	870,098,000	870,098,000
Facility Capacity	$ 870,100,000
Weighted Average Interest Rate	3.32%
Weighted Average Remaining Maturity (years)	10 years 6 months
Consolidated Funds
Debt Instrument [Line Items]
Senior variable rate notes	$ 3,244,039,000
Debt obligations	3,318,869,000	3,219,592,000
Consolidated Funds | Credit Agreement
Debt Instrument [Line Items]
Senior variable rate notes	$ 870,100,000	$ 870,100,000

DEBT OBLIGATIONS AND CREDIT F76

DEBT OBLIGATIONS AND CREDIT FACILITIES - Debt Obligations of CLOs (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Fair Value		$ 3,219,592
Consolidated Funds
Debt Instrument [Line Items]
Fair Value	$ 3,318,869
Consolidated Funds | Senior secured notes
Debt Instrument [Line Items]
Fair Value	$ 3,203,723	$ 3,107,955
Weighted Average Interest Rate	2.36%	2.18%
Weighted Average Remaining Maturity (years)	10 years 2 months 12 days	10 years 8 months 12 days
Consolidated Funds | Subordinated note
Debt Instrument [Line Items]
Fair Value	$ 115,146	$ 111,637
Weighted Average Remaining Maturity (years)	10 years 7 months 6 days	10 years 9 months 18 days

DEBT OBLIGATIONS AND CREDIT F77

DEBT OBLIGATIONS AND CREDIT FACILITIES - Future Principal Payments with Respect to the CLO Loans Payable (Details) - Consolidated Funds $ in Thousands	Mar. 31, 2018USD ($)
Debt Instrument [Line Items]
Last nine months of 2018	$ 99,729
2,019	0
2,020	0
2,021	0
2,022	0
Thereafter	3,144,310
Total	$ 3,244,039

NON-CONTROLLING REDEEMABLE IN78

NON-CONTROLLING REDEEMABLE INTERESTS IN CONSOLIDATED FUNDS (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Non-Controlling Redeemable Interests in Consolidated Funds
Beginning balance	$ 860,548	$ 344,047
Initial consolidation of a fund	0	70,817
Contributions	59,745	34,786
Distributions	(73,523)	(9,173)
Net income	10,553	9,003
Change in distributions payable	729	4,098
Foreign currency translation and other	3,812	0
Ending balance	$ 861,864	$ 453,578

UNITHOLDERS' CAPITAL - Addition

UNITHOLDERS' CAPITAL - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended
	Feb. 28, 2018	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Class of Stock [Line Items]
Total unitholders’ capital		$ 2,057,076	$ 2,020,617	$ 1,923,462	$ 1,885,171
OCGH
Class of Stock [Line Items]
Unitholders' capital (in shares)		86,007,356	90,975,687
Total unitholders’ capital		$ 1,072,211	$ 1,113,314
Oaktree Operating Group
Class of Stock [Line Items]
Total Oaktree Operating Group units (in shares)		157,178,865	156,285,913
Total unitholders’ capital		$ 1,959,477	$ 1,912,517
Equity Held by Third Parties
Class of Stock [Line Items]
Total unitholders’ capital		$ 7,375	$ 7,923
Public Offering
Class of Stock [Line Items]
Number of units issued and sold (in shares)	5,000,000
Net proceeds from units sold	$ 219,500

UNITHOLDERS' CAPITAL - Summary

UNITHOLDERS' CAPITAL - Summary of Net Income (Loss) (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Weighted average Oaktree Operating Group units outstanding (in thousands):
Weighted average number of outstanding (in shares)	67,918	63,022
Oaktree Operating Group net income:
Oaktree Operating Group net income	$ 137,401	$ 161,831
Net income attributable to Oaktree Capital Group, LLC:
Non-Operating Group income (expense)	697	4,663
Income tax expense of Intermediate Holding Companies	(6,397)	(12,302)
Net income attributable to Oaktree Capital Group, LLC	$ 52,732	$ 54,915
OCGH non-controlling interest
Weighted average Oaktree Operating Group units outstanding (in thousands):
Weighted average number of outstanding (in shares)	88,270	91,644
Oaktree Operating Group net income:
Oaktree Operating Group net income	$ 73,255	$ 96,598
Class A unitholders
Weighted average Oaktree Operating Group units outstanding (in thousands):
Weighted average number of outstanding (in shares)	67,918	63,022
Oaktree Operating Group net income:
Oaktree Operating Group net income	$ 56,362	$ 66,428
Oaktree Operating Group
Weighted average Oaktree Operating Group units outstanding (in thousands):
Weighted average number of outstanding (in shares)	156,188	154,666
Oaktree Operating Group net income:
Oaktree Operating Group net income	$ 129,617	$ 163,026
Net income attributable to Oaktree Capital Group, LLC:
OCGH non-controlling interest	692	626
Oaktree Capital Group, LLC
Net income attributable to Oaktree Capital Group, LLC:
Oaktree Operating Group net income attributable to Class A unitholders	56,362	66,428
Non-Operating Group income (expense)	20	(232)
Income tax expense of Intermediate Holding Companies	(3,650)	(11,281)
Net income attributable to Oaktree Capital Group, LLC	$ 52,732	$ 54,915

UNITHOLDERS' CAPITAL - Changes

UNITHOLDERS' CAPITAL - Changes in Company Ownership Interest (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Stockholders' Equity Note [Abstract]
Net income attributable to Oaktree Capital Group, LLC	$ 52,732	$ 54,915
Equity reallocation between controlling and non-controlling interests	73,830	12,061
Change from net income attributable to Oaktree Capital Group, LLC and transfers from non-controlling interests	$ 126,562	$ 66,976

EARNINGS PER UNIT - Computation

EARNINGS PER UNIT - Computations of Net Income (Loss) Per Unit (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share [Abstract]
Net income attributable to Oaktree Capital Group, LLC	$ 52,732	$ 54,915
Weighted average number of Class A units outstanding (in shares)	67,918	63,022
Basic and diluted net income per Class A unit (in dollars per share)	$ 0.78	$ 0.87

EARNINGS PER UNIT - Computati83

EARNINGS PER UNIT - Computations of Net Income (Loss) Per Unit (Additional Information) (Details)	3 Months Ended
	Mar. 31, 2018shares
Highstar Capital
Earnings Per Share [Line Items]
Performance period (in years)	7 years
Deferred Equity Units
Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share computation (in shares)	0
Deferred Equity Units
Earnings Per Share [Line Items]
Vesting period	4 years
OCGH Units
Earnings Per Share [Line Items]
Exchange ratio	1
OCGH Issued (in shares)	86,007,356
OCGH Units | Deferred Equity Units
Earnings Per Share [Line Items]
Maximum number of awards issuable (in shares)	340,000
Class A Units
Earnings Per Share [Line Items]
Exchange ratio	1
Antidilutive securities excluded from earnings per share computation (in shares)	86,007,356
Minimum | OCGH Units | Deferred Equity Units
Earnings Per Share [Line Items]
Vesting period	4 years
Maximum | OCGH Units | Deferred Equity Units
Earnings Per Share [Line Items]
Vesting period	10 years

EQUITY-BASED COMPENSATION - Cla

EQUITY-BASED COMPENSATION - Class A and OCGH Unit Awards (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018USD ($)shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Discount from market price	20.00%
Unrecognized compensation expense on non-vested equity-based awards | $	$ 178.1
Weighted average period of recognition non-vested equity-based awards	4 years 2 months 12 days
Restricted Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years 4 months 24 days
Class A Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units granted (in shares)	1,150,196
Class A Units | Restricted Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units granted (in shares)	1,150,196
OCGH Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units granted (in shares)	113,801
OCGH Units | Restricted Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units granted (in shares)	113,801

EQUITY-BASED COMPENSATION - Sum

EQUITY-BASED COMPENSATION - Summary of Unvested Equity-Based Awards and Changes (Details) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2018USD ($)$ / sharesshares
Weighted Average Grant Date Fair Value
Weighted average period of recognition non-vested equity-based awards	4 years 2 months 12 days
Class A Units
Number of Units
Beginning balance (in shares)	2,556,316
Granted (in shares)	1,150,196
Vested (in shares)	(863,389)
Forfeited (in shares)	(65,225)
Ending balance (in shares)	2,777,898
Weighted Average Grant Date Fair Value
Beginning balance (in dollars per share) | $ / shares	$ 44.05
Granted (in dollars per share) | $ / shares	39.60
Vested (in dollars per share) | $ / shares	42.53
Forfeited (in dollars per share) | $ / shares	39.72
Ending balance (in dollars per share) | $ / shares	$ 42.78
OCGH Units
Number of Units
Beginning balance (in shares)	2,158,835
Granted (in shares)	113,801
Vested (in shares)	(282,028)
Forfeited (in shares)	0
Ending balance (in shares)	1,990,608
Weighted Average Grant Date Fair Value
Beginning balance (in dollars per share) | $ / shares	$ 39.79
Granted (in dollars per share) | $ / shares	31.68
Vested (in dollars per share) | $ / shares	37.61
Forfeited (in dollars per share) | $ / shares	0
Ending balance (in dollars per share) | $ / shares	$ 39.63
Performance Awards
Number of Units
Ending balance (in shares)	250,000
Weighted Average Grant Date Fair Value
Vesting period	4 years
Unrecognized compensation cost | $	$ 2.6
Weighted average period of recognition non-vested equity-based awards	5 years 8 months 12 days
Performance Awards | OCGH Units
Weighted Average Grant Date Fair Value
Maximum number of awards issuable (in shares)	340,000
Awards where compensation expense is expected to be recognized	120,000
Unrecognized compensation cost | $	$ 3.8
Weighted average period of recognition non-vested equity-based awards	5 years
Minimum | Performance Awards | OCGH Units
Weighted Average Grant Date Fair Value
Vesting period	4 years
Maximum | Performance Awards | OCGH Units
Weighted Average Grant Date Fair Value
Vesting period	10 years

EQUITY-BASED COMPENSATION - Equ

EQUITY-BASED COMPENSATION - Equity Value Units (Details) - USD ($) $ in Millions	Apr. 26, 2017	Mar. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense on non-vested equity-based awards		$ 178.1
Equity Value Units, Equity Settled
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units outstanding (in shares)		1,000,000
Equity Value Units, Cash Settled
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units outstanding (in shares)		1,000,000
Number of units granted (in shares)	225,000
Equity Value Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recapitalization percentage		33.33%
Unrecognized compensation expense on non-vested equity-based awards		$ 2.6
Weighted average remaining service term		1 year 9 months

EQUITY-BASED COMPENSATION - Def

EQUITY-BASED COMPENSATION - Deferred Equity Units (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018USD ($)shares	Dec. 31, 2017shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average period of recognition non-vested equity-based awards	4 years 2 months 12 days
Deferred Equity Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
Nonvested units outstanding (in shares) | shares	250,000
Unrecognized compensation cost | $	$ 2.6
Weighted average period of recognition non-vested equity-based awards	5 years 8 months 12 days
Lack-of-marketability discount	20.00%
OCGH Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exchange ratio	1
Nonvested units outstanding (in shares) | shares	1,990,608	2,158,835
OCGH Units | Deferred Equity Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost | $	$ 3.8
Weighted average period of recognition non-vested equity-based awards	5 years

INCOME TAXES AND RELATED PAYM88

INCOME TAXES AND RELATED PAYMENTS (Details)	3 Months Ended
	Mar. 31, 2018USD ($)company	Dec. 31, 2017USD ($)	Dec. 31, 2040USD ($)	Dec. 31, 2037USD ($)	Dec. 31, 2036USD ($)	Dec. 31, 2035USD ($)	Dec. 31, 2034USD ($)	Dec. 31, 2029USD ($)
Income Tax Disclosure [Abstract]
Number of wholly-owned subsidiaries | company	2
Decreases resulting from settlements with taxing authorities	$ 5,300,000
Net reduction in net income related to Tax Act		$ 33,200,000
Percentage of cash savings	85.00%
Tax Receivable Agreement
Payments to unitholders under tax receivable agreement	$ 0
Forecast
Tax Receivable Agreement
Expected payments to unitholders under tax receivable agreement			$ 210,571,000
2007 Private Offering | Forecast
Tax Receivable Agreement
Expected payments to unitholders under tax receivable agreement								$ 17,339,000
Initial public offering | Forecast
Tax Receivable Agreement
Expected payments to unitholders under tax receivable agreement							$ 36,767,000
Offering | Forecast
Tax Receivable Agreement
Expected payments to unitholders under tax receivable agreement			$ 34,288,000	$ 32,498,000	$ 38,557,000	$ 51,122,000

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Details) - USD ($)	Oct. 17, 2017	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Contingencies And Commitments [Line Items]
Accrued incentives (fund level)		$ 1,770,580,000		$ 1,918,952,000
Compensation expense related to accrued incentives (fund level)		918,696,000		1,000,232,000
Capital commitments		360,300,000		429,100,000
Consolidated Funds
Contingencies And Commitments [Line Items]
Aggregate potential credit and investment commitments		7,500,000		6,000,000
BDC Acquisition
Contingencies And Commitments [Line Items]
Contingent liabilities	$ 56,200,000
Indemnification asset	$ 56,200,000
Highstar Capital
Contingencies And Commitments [Line Items]
Contingent consideration		$ 60,000,000
Performance period (in years)		7 years
Contingent consideration		$ 16,200,000		$ 18,800,000
Contingent consideration income		$ 2,600,000	$ (600,000)

RELATED-PARTY TRANSACTIONS - Ad

RELATED-PARTY TRANSACTIONS - Additional Information (Details) - Oaktree Capital Group Excluding Consolidated Funds - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest income	$ 109	$ 151
Level III
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Due to affiliates	108,417		$ 93,772
Affiliates
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Management fees and incentive income	$ 312,000	$ 260,200
Discounted cash flow | Affiliates | Level III
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	10.00%
Minimum | Discounted cash flow | Affiliates | Level III
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Average interest rate	2.00%
Maximum | Discounted cash flow | Affiliates | Level III
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Average interest rate	3.00%

RELATED-PARTY TRANSACTIONS - Am

RELATED-PARTY TRANSACTIONS - Amounts Due from and Due to Affiliates (Details) - Oaktree Capital Group Excluding Consolidated Funds - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Due from affiliates:
Loans	$ 6,951	$ 9,239
Amounts due from unconsolidated funds	55,873	57,155
Management fees and incentive income due from unconsolidated funds	86,265	152,959
Payments made on behalf of unconsolidated entities	4,310	3,784
Non-interest bearing advances made to certain non-controlling interest holders and employees	26	87
Total due from affiliates	153,425	223,224
Due to affiliates:
Due to OCGH unitholders in connection with the tax receivable agreement (please see note 16)	210,571	176,283
Amounts due to senior executives, certain non-controlling interest holders and employees	1,165	1,590
Total due to affiliates	$ 211,736	$ 177,873

SEGMENT REPORTING (Details)

SEGMENT REPORTING (Details)	3 Months Ended
	Mar. 31, 2018segment
Segment Reporting [Abstract]
Number of segments	1

SUBSEQUENT EVENTS (Details)

SUBSEQUENT EVENTS (Details)	Apr. 26, 2018$ / shares
Subsequent Event | Class A Units
Class of Stock [Line Items]
Dividend declared (in dollars per share)	$ 0.96