Oaktree Capital Group, LLC 6.625% PFD UT A (OAK-PA) 10-Q 7 Nov 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2013	Nov. 05, 2013	Nov. 05, 2013
		Class A Units [Member]	Class B Units [Member]
Entity Information [Line Items]	'	'	'
Document Type	'10-Q	'	'
Amendment Flag	'false	'	'
Document Period End Date	30-Sep-13	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'Q3	'	'
Trading Symbol	'OAK	'	'
Entity Registrant Name	'Oaktree Capital Group, LLC	'	'
Entity Central Index Key	'0001403528	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Filer Category	'Non-accelerated Filer	'	'
Entity Common Stock, Shares Outstanding	'	38,239,441	112,821,276

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Financial Condition (USD $)	Sep. 30, 2013		Dec. 31, 2012
Assets	'		'
Cash and cash-equivalents	$304,743,000		$458,191,000
U.S. Treasury and government agency securities	706,865,000		370,614,000
Corporate investments, at equity	90,680,000	[1]	98,950,000
Due from affiliates	49,076,000		44,589,000
Deferred tax assets	293,579,000		159,171,000
Investments, at fair value	38,764,427,000		38,372,626,000
Other assets	176,920,000		127,244,000
Total assets	44,701,181,000	[2]	43,869,998,000
Liabilities:	'		'
Accrued compensation expense	187,834,000		118,921,000
Accounts payable, other accrued expenses and other liabilities	74,015,000		95,390,000
Due to affiliates	250,290,000		136,165,000
Debt obligations	585,714,000		615,179,000
Securities sold short, at fair value	120,598,000		126,530,000
Total liabilities	4,819,762,000		2,805,274,000
Commitments and contingencies (Note 12)	'		'
Non-controlling redeemable interests in consolidated funds	38,329,912,000		39,670,831,000
Unitholdersb capital:	'		'
Paid-in capital	614,600,000		645,053,000
Accumulated deficit	-179,812,000		-336,903,000
Accumulated other comprehensive loss	-1,111,000		-1,748,000
Class A unitholdersb capital	433,677,000		306,402,000
OCGH non-controlling interest in consolidated subsidiaries	1,117,830,000		1,087,491,000
Total unitholdersb capital	1,551,507,000		1,393,893,000
Total liabilities and unitholdersb capital	44,701,181,000		43,869,998,000
Class A Units [Member]	'		'
Unitholdersb capital:	'		'
Common stock	0		0
Class B Units [Member]	'		'
Unitholdersb capital:	'		'
Common stock	0		0
Consolidated funds [Member]	'		'
Assets	'		'
Cash and cash-equivalents	2,319,286,000		2,470,335,000
Investments, at fair value	38,764,427,000		38,372,626,000
Dividends and interest receivable	175,403,000		177,746,000
Due from brokers	342,763,000		405,143,000
Receivable for securities sold	749,309,000		501,199,000
Derivative assets, at fair value	106,857,000		107,560,000
Other assets	621,273,000		576,630,000
Liabilities:	'		'
Accounts payable, other accrued expenses and other liabilities	28,163,000		104,744,000
Payables for securities purchased	1,294,253,000		629,627,000
Securities sold short, at fair value	120,598,000		126,530,000
Derivative liabilities, at fair value	154,680,000		156,647,000
Distributions payable	96,037,000		330,446,000
Borrowings under credit facilities	$2,028,178,000		$491,625,000
[1]	The adjustment to corporate investments is to remove from segment assets the consolidated funds that are treated as equity method investments for segment reporting purposes.
[2]	The total assets adjustment represents the inclusion of investments and other assets of the consolidated funds, net of segment assets eliminated in consolidation, which are primarily corporate investments in funds and incentive income receivable.

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Financial Condition (Parenthetical) (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Class A Units [Member]	'	'
Common stock, par value	$0	$0
Common stock, shares authorized	'Unlimited	'Unlimited
Common stock, shares issued	38,239,441	30,180,933
Common stock, shares outstanding	38,239,441	30,180,933
Class B Units [Member]	'	'
Common stock, par value	$0	$0
Common stock, shares authorized	'Unlimited	'Unlimited
Common stock, shares issued	112,821,276	120,267,503
Common stock, shares outstanding	112,821,276	120,267,503

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended				9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Revenues:	'		'		'		'
Management fees	$56,786	[1]	$30,586	[1]	$149,422	[1]	$91,813	[1]
Incentive income	0	[1]	1,320	[1]	2,317	[1]	6,368	[1]
Total revenues	56,786		31,906		151,739		98,181
Expenses:	'		'		'		'
Compensation and benefits	-95,660		-83,141		-279,638		-247,907
Equity-based compensation	-7,320		-7,498		-20,877		-27,482
Incentive income compensation	-49,222		-29,546		-308,446		-118,268
Total compensation and benefits expense	-152,202		-120,185		-608,961		-393,657
General and administrative	-31,094		-25,965		-80,227		-72,394
Depreciation and amortization	-1,791		-1,901		-5,266		-5,573
Consolidated fund expenses	-29,071		-19,969		-80,749		-70,971
Total expenses	-214,158	[2]	-168,020	[3]	-775,203	[4]	-542,595	[5]
Other income (loss):	'		'		'		'
Interest expense	-17,337		-10,789		-42,931		-33,639
Interest and dividend income	389,078		452,473		1,375,923		1,455,964
Investment income	11,468	[1]	8,298	[1]	22,600	[1]	17,683	[1]
Other income (expense), net	148		-59		412		8,534	[6]
Total other income	1,247,329		2,356,217		5,159,947		5,788,102
Income before income taxes	1,089,957		2,220,103		4,536,483		5,343,688
Income taxes	-726	[7]	-5,801	[7]	-18,874	[7]	-27,493	[7]
Net income	1,089,231		2,214,302		4,517,609		5,316,195
Less:	'		'		'		'
Net income attributable to non-controlling redeemable interests in consolidated funds	-916,875		-2,069,855		-3,743,327		-4,868,300
Net income attributable to OCGH non-controlling interest in consolidated subsidiaries	-129,408	[8]	-119,235	[8]	-617,191	[8]	-379,356	[8]
Net income attributable to Oaktree Capital Group, LLC	42,948		25,212		157,091		68,539
Distributions declared per Class A unit	$1.51	[9]	$0.79	[9]	$3.97	[9]	$1.76	[9]
Net income per unit (basic and diluted):	'		'		'		'
Net income per Class A unit	$1.12		$0.84		$4.64		$2.49
Weighted average units outstanding	38,239		30,181		33,845		27,494
Consolidated funds [Member]	'		'		'		'
Other income (loss):	'		'		'		'
Net realized gain on consolidated fundsb investments	766,199		1,097,305		2,796,448		2,904,964
Net change in unrealized appreciation on consolidated fundsb investments	$97,773		$808,989		$1,007,495		$1,434,596
[1]	The adjustment represents the elimination of amounts attributable to the consolidated funds.
[2]	The expense adjustment consists of (a)B equity-based compensation charges of $6,250 related to unit grants made before the Companybs initial public offering, (b)B consolidated fund expenses of $32,604 and (c)B expenses incurred by the Intermediate Holding Companies of $271.
[3]	The expense adjustment consists of (a)B equity-based compensation charges of $7,369 related to unit grants made before the Companybs initial public offering, (b)B consolidated fund expenses of $21,452 and (c)B expenses incurred by the Intermediate Holding Companies of $115.
[4]	The expense adjustment consists of (a)B equity-based compensation charges of $18,231 related to unit grants made before the Companybs initial public offering, (b)B consolidated fund expenses of $79,434 and (c)B expenses incurred by the Intermediate Holding Companies of $947.
[5]	The expense adjustment consists of (a)B equity-based compensation charges of $27,353 related to unit grants made before the Companybs initial public offering, (b)B consolidated fund expenses of $69,428 and (c)B expenses incurred by the Intermediate Holding Companies of $393.
[6]	The other income, net adjustment represents other income or expenses of OCG or its Intermediate Holding Companies. This amount is attributable to a reduction in the amount of the deferred tax asset under the tax receivable agreement associated with the 2007 Private Offering, which reduced the tax receivable agreement liability payable to OCGH unitholders.
[7]	Because adjusted net income is a pre-tax measure, this adjustment eliminates the effect of income tax expense.
[8]	Because adjusted net income is calculated at the Operating Group level, this adjustment adds back the effect of items applicable to OCG, its Intermediate Holding Companies or the OCGH non-controlling interest.
[9]	All references to Class A units in these financial statements give effect to the conversion of previously outstanding 13 Class C units into Class A units on a one-for-one basis in April 2012.

Condensed_Consolidated_Stateme3

Condensed Consolidated Statements of Operations - Parenthetical (Common Class C [Member])	Apr. 30, 2012
Common Class C [Member]	'
Common stock, shares issued (in shares)	13

Condensed_Consolidated_Stateme4

Condensed Consolidated Statements of Comprehensive Income (Loss) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net income	$1,089,231	$2,214,302	$4,517,609	$5,316,195
Other comprehensive income (loss), net of tax:	'	'	'	'
Foreign currency translation adjustments	3,090	1,310	-773	1,141
Unrealized loss on interest-rate swap designated as cash-flow hedge	-240	-315	3,000	-1,214
Other comprehensive income, net of tax	2,850	995	2,227	-73
Total comprehensive income	1,092,081	2,215,297	4,519,836	5,316,122
Less: Comprehensive income attributable to non-controlling interests	-1,048,410	-2,189,885	-4,362,108	-5,247,635
Comprehensive income attributable to Oaktree Capital Group, LLC	43,671	25,412	157,728	68,487
Oaktree Capital Group, LLC [Member]	'	'	'	'
Net income	42,948	25,212	157,091	68,539
Other comprehensive income (loss), net of tax:	'	'	'	'
Foreign currency translation adjustments	784	263	-1	194
Unrealized loss on interest-rate swap designated as cash-flow hedge	-61	-63	638	-246
Other comprehensive income, net of tax	723	200	637	-52
Total comprehensive income	43,671	25,412	157,728	68,487
Less: Comprehensive income attributable to non-controlling interests	0	0	0	0
Comprehensive income attributable to Oaktree Capital Group, LLC	43,671	25,412	157,728	68,487
OCGH Non-controlling Interest in Consolidated Subsidiaries [Member]	'	'	'	'
Net income	129,408	119,235	617,191	379,356
Other comprehensive income (loss), net of tax:	'	'	'	'
Foreign currency translation adjustments	2,306	1,047	-772	947
Unrealized loss on interest-rate swap designated as cash-flow hedge	-179	-252	2,362	-968
Other comprehensive income, net of tax	2,127	795	1,590	-21
Total comprehensive income	131,535	120,030	618,781	379,335
Less: Comprehensive income attributable to non-controlling interests	-131,535	-120,030	-618,781	-379,335
Comprehensive income attributable to Oaktree Capital Group, LLC	0	0	0	0
Non-Controlling Redemable Interests in Consolidated Funds [Member]	'	'	'	'
Net income	916,875	2,069,855	3,743,327	4,868,300
Other comprehensive income (loss), net of tax:	'	'	'	'
Foreign currency translation adjustments	0	0	0	0
Unrealized loss on interest-rate swap designated as cash-flow hedge	0	0	0	0
Other comprehensive income, net of tax	0	0	0	0
Total comprehensive income	916,875	2,069,855	3,743,327	4,868,300
Less: Comprehensive income attributable to non-controlling interests	-916,875	-2,069,855	-3,743,327	-4,868,300
Comprehensive income attributable to Oaktree Capital Group, LLC	$0	$0	$0	$0

Condensed_Consolidated_Stateme5

Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012
Cash flows from operating activities:	'		'
Net income	$4,517,609		$5,316,195
Adjustments to reconcile net income to net cash provided by operating activities:	'		'
Investment income	-22,600	[1]	-17,683	[1]
Depreciation and amortization	5,266		5,573
Equity-based compensation	20,877		27,482
Amortization of original issue and market discount of consolidated funds' investments	-32,187		-94,269
Income distributions from corporate investments in companies	37,706		0
Cash flows due to changes in operating assets and liabilities:	'		'
Increase in other assets	-43,512		-130,307
Decrease in net due to affiliates	-4,609		-6,667
Decrease in accounts payable, other accrued expenses and other liabilities	-25,433		-9,923
Net cash provided by operating activities	4,663,632		3,480,013
Cash flows from investing activities:	'		'
Purchases of U.S. Treasury and government agency securities	-702,456		-169,142
Proceeds from maturities and sales of U.S. Treasury and government agency securities	366,205		190,000
Corporate investments in funds and companies	-8,870		-8,142
Distributions from corporate investments in funds and companies	2,034		19,028
Purchases of fixed assets	-3,027		-4,631
Other	-40,000		0
Net cash provided by (used in) investing activities	-386,114		27,113
Cash flows from financing activities:	'		'
Repayments of debt obligations	-29,465		-33,214
Purchase of OCGH units	-420,741		-322,935
Repurchase and cancellation of Class A units	0		-14,132
Distributions to Class A unitholders	-131,999		-50,189
Distributions to OCGH unitholders	-527,101		-279,086
Net cash used in financing activities	-4,592,345		-3,333,747
Effect of exchange rate changes on cash	10,330		2,283
Net increase (decrease) in cash and cash-equivalents	-304,497		175,662
Cash and cash-equivalents, beginning balance	2,928,526		3,505,659
Cash and cash-equivalents, ending balance	2,624,029		3,681,321
Consolidated funds [Member]	'		'
Adjustments to reconcile net income to net cash provided by operating activities:	'		'
Net realized and unrealized gains from consolidated funds' investments	-3,803,943		-4,339,560
Cash flows due to changes in operating assets and liabilities:	'		'
Decrease in dividends and interest receivable	2,343		45,896
Decrease in due from brokers	62,380		183,174
Increase in receivables for securities sold	-248,110		-364,846
Increase in payables for securities purchased	664,626		454,480
Purchases of securities	-13,143,842		-11,139,061
Proceeds from maturities and sales of securities	16,677,061		13,549,529
Cash flows from financing activities:	'		'
Contributions from non-controlling interests	4,613,588		4,948,480
Distributions to non-controlling interests	-10,033,373		-7,907,434
Borrowings on credit facilities	3,030,121		719,928
Repayments on credit facilities	-1,513,283		-717,425
Class A Units [Member]	'		'
Cash flows from financing activities:	'		'
Proceeds from issuance of Class A units, net	$419,908		$322,260
[1]	The adjustment represents the elimination of amounts attributable to the consolidated funds.

Condensed_Consolidated_Stateme6

Condensed Consolidated Statements of Changes in Unitholders' Capital (Unaudited) (USD $)

9 Months Ended

3 Months Ended

9 Months Ended

In Thousands, except Share data, unless otherwise specified

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2012

Sep. 30, 2013

Dec. 31, 2012

Paid-in Capital [Member]

Paid-in Capital [Member]

Accumulated Deficit [Member]

Accumulated Deficit [Member]

Accumulated Other Comprehensive Income (Loss) [Member]

Accumulated Other Comprehensive Income (Loss) [Member]

OCGH Non-controlling Interest in Consolidated Subsidiaries [Member]

OCGH Non-controlling Interest in Consolidated Subsidiaries [Member]

OCGH Non-controlling Interest in Consolidated Subsidiaries [Member]

OCGH Non-controlling Interest in Consolidated Subsidiaries [Member]

Class A Units [Member]

Class A Units [Member]

Class B Units [Member]

Class B Units [Member]

Class C Units [Member]

Class C Units [Member]

Class C Units [Member]

Increase (decrease) in Stockholders' Equity:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unitholders' capital, value

$1,393,893

$1,124,000

$645,053

$634,739

($336,903)

($444,713)

($1,748)

($1,884)

'

'

$1,087,491

$935,858

'

'

'

'

'

'

'

Unitholders' capital, shares

'

'

'

'

'

'

'

'

'

'

'

'

30,181,000

22,664,000

120,268,000

125,847,000

13,000

0

0

Issuance of units, Shares

'

'

'

'

'

'

'

'

'

'

'

'

8,058,000

7,904,000

673,000

2,358,000

'

'

'

Issuance of units, Value

419,908

322,260

419,908

322,260

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cancellation of Class B units associated with forfeitures of OCGH units

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-44,000

-5,000

'

'

'

Cancellation of Class B units

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-8,076,000

-7,904,000

'

'

'

Purchase of OCGH units from OCGH unitholders

-419,908

-322,260

-419,908

-322,260

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Deferred tax effect resulting from the purchase of OCGH units

20,161

15,490

20,161

15,490

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Repurchase and cancellation of OCGH units

-833

-675

'

'

'

'

'

'

'

'

-833

-675

'

'

'

'

'

'

'

Conversion of Class C units into Class A units

'

'

'

'

'

'

'

'

'

'

'

'

'

13,000

'

'

13,000

'

'

Repurchase and cancellation of Class A units

'

'

'

'

'

'

'

'

'

'

'

'

'

-400,000

'

'

'

'

'

Repurchase and cancellation of Class A units

'

-14,132

'

-14,132

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Equity reallocation between controlling and non-controlling interests

76,685

69,101

76,685

69,101

'

'

'

'

'

'

-76,685

-69,101

'

'

'

'

'

'

'

Capital increase related to equity-based compensation

20,877

27,482

4,700

4,871

'

'

'

'

'

'

16,177

22,611

'

'

'

'

'

'

'

Distributions declared

-659,100

-329,275

-131,999

-50,189

'

'

'

'

'

'

-527,101

-279,086

'

'

'

'

'

'

'

Net income

774,282

447,895

'

'

157,091

68,539

'

'

'

'

617,191

379,356

'

'

'

'

'

'

'

Foreign currency translation adjustment, net of tax

-773

1,141

'

'

'

'

-1

194

2,306

1,047

-772

947

'

'

'

'

'

'

'

Unrealized gain on interest-rate swap designated as cash-flow hedge, net of tax

3,000

-1,214

'

'

'

'

638

-246

'

'

2,362

-968

'

'

'

'

'

'

'

Unitholders' capital, value

$1,551,507

$1,270,712

$614,600

$659,880

($179,812)

($376,174)

($1,111)

($1,936)

$1,117,830

$988,942

$1,117,830

$988,942

'

'

'

'

'

'

'

Unitholders' capital, shares

'

'

'

'

'

'

'

'

'

'

'

'

38,239,000

30,181,000

112,821,000

120,296,000

0

0

0

ORGANIZATION_AND_BASIS_OF_PRES

ORGANIZATION AND BASIS OF PRESENTATION	9 Months Ended
	Sep. 30, 2013
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 distressed debt, corporate debt (including high yield debt and senior loans), control investing, convertible securities, real estate and listed equities. Funds managed by Oaktree (the “Oaktree funds”) include both separate accounts and commingled funds. The 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 or, in certain limited cases, co-general partner.
	Oaktree Capital Group, LLC was formed on April 13, 2007. 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 principals, current and former employees and certain other investors (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. An Oaktree Operating Group unit is not a legal interest but represents one limited partnership interest in each of the Oaktree Operating Group entities. The Class B units are entitled to ten votes per unit and have no economic interest in the Company, whereas the Class A units are only entitled to one vote per unit. Consequently, the OCGH unitholders' economic interest in the Oaktree Operating Group is reflected as OCGH non-controlling interest 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, the consolidated entities that are considered to be variable interest entities and for which the Company is considered the primary beneficiary, and certain entities that are not considered variable interest entities but in which the Company has a controlling financial interest. All intercompany accounts and transactions have been eliminated through 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, 2012 included in the Company's Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on March 14, 2013.

SUMMARY_OF_SIGNIFICANT_ACCOUNT

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	'
	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	Fair Value of Financial Instruments
	GAAP establishes a hierarchal 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 prices in markets for which there are few transactions, the prices are not current, little public information exists or prices vary substantially over time or among brokered market makers. Other 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 and other investments where the fair value is based on observable inputs.
	•	Level III – Model-derived 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. The types of investments in Level III include non-publicly traded equity, debt, real estate and derivatives.
	In some instances, 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. The Company accounts for the transfer of assets into or out of each fair-value hierarchy level as of the beginning of the reporting period.
	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 or security being valued by the investment and valuation teams. The valuations are then reviewed by the valuation committee of each investment strategy, which consists of senior members of the investment team. All Level III investment values are ultimately approved by the valuation committees and designated investment professionals, as well as the valuation officer, who is independent of the investment teams and reports directly to the Company's Managing Principal. 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 evaluates changes in fair-value measurements from period to period for reasonableness, considering items such as industry trends, general economic and market conditions, and factors specific to the investment.
	Investments, at Fair Value
	The consolidated funds are primarily investment companies that reflect their investments, including majority-owned and controlled investments (the “portfolio companies”), at fair value. The Company has retained the specialized investment company accounting guidance under GAAP for the consolidated funds with respect to consolidated investments. Thus, the consolidated investments are reflected on 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. Subsequent valuations will depend on facts and circumstances known as of the valuation date and the application of valuation methodologies further described below under “—Non-publicly Traded Equity and Real Estate Investments.”
	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 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 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 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
	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, 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 values of equity and real estate investments are determined using either a cost , market or income approach. A cost approach is based upon the current cost of reproducing a real estate investment less deterioration and functional and economic obsolescence. A 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 may also 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 period of time elapsed 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 may eventually 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.
	Reclassifications
	Certain amounts reported in the prior period have been reclassified to conform to the current period presentation.
	Recent Accounting Developments
	In December 2011, the Financial Accounting Standards Board (“FASB”) issued amended guidance requiring enhanced disclosures that will enable users to evaluate the effect or potential effect of netting arrangements on an entity's financial position, including the effect or potential effect of rights of setoff associated with certain financial instruments and derivative instruments. In January 2013, the FASB issued additional guidance to clarify that ordinary receivables and payables are not in the scope of the amended guidance. The amendments were effective for the Company beginning January 1, 2013. The Company adopted this guidance in the first quarter of 2013 and determined that the adoption did not have a material impact on its condensed consolidated financial statements. Please see note 5 for required disclosures.
	In February 2013, the FASB issued guidance on reporting amounts reclassified out of accumulated other comprehensive income (“AOCI”), which requires entities to disclose additional information about reclassification adjustments, including changes in AOCI balances by component and significant items reclassified out of AOCI. The guidance was effective for the Company beginning January 1, 2013 and applied prospectively. The Company adopted this guidance in the first quarter of 2013 and determined that the adoption did not have a material impact on its condensed consolidated financial statements.
	In June 2013, the FASB issued guidance that amended the criteria by which an entity qualifies as an investment company for accounting purposes. The guidance also clarified the characteristics of an investment company and provided measurement and disclosure requirements for an investment company. The amendment is effective for the Company beginning January 1, 2014. The Company does not expect that adoption of this guidance will have a material impact on its condensed consolidated financial statements.

INVESTMENTS_AT_FAIR_VALUE

INVESTMENTS, AT FAIR VALUE	9 Months Ended
	Sep. 30, 2013
Investments [Abstract]	'
INVESTMENTS, AT FAIR VALUE	'
	INVESTMENTS, AT FAIR VALUE
	Investments held and securities sold short in the consolidated funds are summarized below:
		Fair Value as of						Fair Value as a Percentage of Investments of Consolidated Funds as of
	Investments:	September 30,			December 31,			September 30,			December 31,
		2013			2012			2013			2012
	United States:
	Fixed income securities:
	Consumer discretionary	$	3,754,991		$	5,072,283		9.7	%		13.2	%
	Consumer staples	850,671			697,300			2.2			1.8
	Energy	709,682			565,151			1.8			1.5
	Financials	551,391			1,013,230			1.4			2.6
	Health care	724,472			658,932			1.9			1.7
	Industrials	1,840,898			1,957,259			4.7			5.1
	Information technology	1,244,353			908,662			3.2			2.4
	Materials	1,081,165			826,008			2.8			2.2
	Telecommunication services	332,734			282,101			0.9			0.7
	Utilities	2,062,556			1,717,978			5.3			4.5
	Total fixed income securities (cost: $13,054,005 and $13,320,475 as of September 30, 2013 and December 31, 2012, respectively)	13,152,913			13,698,904			33.9			35.7
	Equity securities:
	Consumer discretionary	2,973,559			3,289,347			7.7			8.6
	Consumer staples	470,065			444,735			1.2			1.2
	Energy	563,676			448,412			1.5			1.2
	Financials	5,636,471			6,001,493			14.5			15.6
	Health care	250,276			134,239			0.6			0.3
	Industrials	1,554,872			1,201,156			4			3.1
	Information technology	243,756			199,003			0.6			0.5
	Materials	1,225,018			1,407,850			3.2			3.7
	Telecommunication services	40,796			15,022			0.1			0
	Utilities	176,216			140,037			0.5			0.4
	Total equity securities (cost: $10,526,283 and $11,637,988 as of September 30, 2013 and December 31, 2012, respectively)	13,134,705			13,281,294			33.9			34.6
		Fair Value as of						Fair Value as a Percentage of Investments of Consolidated Funds as of
	Investments:	September 30,			December 31,			September 30,			December 31,
		2013			2012			2013			2012
	Europe:
	Fixed income securities:
	Consumer discretionary	$	1,509,502		$	1,607,822		3.9	%		4.2	%
	Consumer staples	154,953			486,037			0.4			1.3
	Energy	282,569			272,079			0.7			0.7
	Financials	531,437			627,161			1.4			1.6
	Health care	25,159			19,585			0.1			0
	Industrials	502,857			531,770			1.3			1.4
	Information technology	7,280			5,397			0			0
	Materials	681,813			717,294			1.8			1.9
	Telecommunication services	172,840			190,369			0.4			0.5
	Utilities	18,049			28,561			0			0.1
	Total fixed income securities (cost: $3,085,553 and $4,383,068 as of September 30, 2013 and December 31, 2012, respectively)	3,886,459			4,486,075			10			11.7
	Equity securities:
	Consumer discretionary	167,589			117,485			0.5			0.3
	Consumer staples	747,302			1,336,420			1.9			3.5
	Energy	77,901			91,724			0.2			0.2
	Financials	2,876,742			1,553,598			7.4			4.1
	Health care	12,850			—			0			—
	Industrials	462,977			1,388			1.2			0
	Information technology	1,398			335			0			0
	Materials	246,176			374,169			0.7			1
	Telecommunication services	882			—			0			—
	Total equity securities (cost: $3,749,094 and $2,960,210 as of September 30, 2013 and December 31, 2012, respectively)	4,593,817			3,475,119			11.9			9.1
	Asia and other:
	Fixed income securities:
	Consumer discretionary	124,192			680,273			0.3			1.8
	Consumer staples	19,488			3,615			0.1			0
	Energy	62,885			47,776			0.2			0.1
	Financials	117,585			22,186			0.3			0.1
Health care	—			1,622			—			0
Industrials	676,076			290,639			1.7			0.8
Information technology	18,648			33,260			0			0.1
Materials	97,568			92,974			0.3			0.2
Telecommunication services	834			1,939			0			0
Utilities	7,188			129,474			0			0.3
Total fixed income securities (cost: $1,099,405 and $1,298,868 as of September 30, 2013 and December 31, 2012, respectively)	1,124,464			1,303,758			2.9			3.4
	Fair Value as of						Fair Value as a Percentage of Investments of Consolidated Funds as of
Investments:	September 30,			December 31,			September 30,			December 31,
	2013			2012			2013			2012
Asia and other:
Equity securities:
Consumer discretionary	$	554,280		$	99,527		1.4	%		0.3	%
Consumer staples	25,462			42,688			0.1			0.1
Energy	251,661			213,490			0.7			0.6
Financials	955,794			973,745			2.5			2.5
Health care	810			71			0			0
Industrials	809,879			613,020			2.1			1.6
Information technology	82,707			75,583			0.2			0.2
Materials	54,050			51,296			0.1			0.1
Telecommunication services	7,934			6,044			0			0
Utilities	129,492			52,012			0.3			0.1
Total equity securities (cost: $2,298,307 and $1,726,145 as of September 30, 2013 and December 31, 2012, respectively)	2,872,069			2,127,476			7.4			5.5
Total fixed income securities	18,163,836			19,488,737			46.8			50.8
Total equity securities	20,600,591			18,883,889			53.2			49.2
Total investments, at fair value	$	38,764,427		$	38,372,626		100	%		100	%
Securities Sold Short:
Securities sold short – equities	$	(120,598	)	$	(126,530	)
As of September 30, 2013 and December 31, 2012, no single issuer or investment had a fair value that exceeded 5% of Oaktree's total consolidated net assets.
Net Gains From Investment Activities of Consolidated Funds
Net gains from investment activities in the condensed consolidated statements of operations consist primarily of the 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 September 30,
	2013						2012
	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	$	760,923		$	306,542		$	1,028,109			$	948,408
Total-return, credit-default and interest-rate swaps (1)	(1,235		)	19,637			28,849				2,189
Foreign currency forward contracts (1)	9,382			(222,589		)	40,148				(135,228		)
Options and futures (1)	(2,871		)	(5,817		)	199				(6,380		)
Total	$	766,199		$	97,773		$	1,097,305			$	808,989
	Nine Months Ended September 30,
	2013						2012
	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	$	2,773,547		$	998,935		$	2,754,917			$	1,535,611
Total-return, credit-default and interest-rate swaps (1)	2,648			44,396			59,313				38,311
Foreign currency forward contracts (1)	28,934			(38,598		)	103,052				(137,422		)
Options and futures (1)	(8,681		)	2,762			(12,318		)		(1,904		)
Total	$	2,796,448		$	1,007,495		$	2,904,964			$	1,434,596
-1	Please see note 5 for additional information.

FAIR_VALUE

FAIR VALUE	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
FAIR VALUE	'
	FAIR VALUE
	Fair Value of Financial Assets and Liabilities
	The short-term nature of cash and cash-equivalents, U.S. Treasury and government agency securities, receivables and accounts payable causes each of their carrying values to approximate fair value. The fair value of U.S. Treasury securities and short-term investments included in cash and cash-equivalents is a Level I valuation and the fair value of government agency securities is a level II valuation. 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 was $624.7 million and $652.9 million as of September 30, 2013 and December 31, 2012, respectively, utilizing an average borrowing rate of 3.2% and 3.1%, respectively. As of September 30, 2013, a 10% increase in the assumed average borrowing rate would lower the estimated fair value to $617.0 million, whereas a 10% decrease would increase the estimated fair value to $632.6 million. The fair values of the Company's interest-rate swaps and foreign exchange contracts are Level II valuations and are included in accounts payable, other accrued expenses and other liabilities. As of September 30, 2013 and December 31, 2012, the fair value of the interest-rate swaps was a net liability of $4.9 million and $7.9 million, respectively, and the fair value of the foreign exchange contracts was a net liability of $1.4 million and $0.8 million, respectively. The fair value of the Company's total-return swap, a Level II valuation, included in other assets on the condensed consolidated balance sheet, was a net asset of $0.1 million as of September 30, 2013.
	Fair Value of Financial Instruments Held By Consolidated Funds
	The table below summarizes the valuation of investments and other financial instruments of the consolidated funds by fair-value hierarchy levels:
	As of September 30, 2013:	Level I				Level II				Level III				Total
	Corporate debt – bank debt	$	—			$	8,060,810			$	2,288,908			$	10,349,718
	Corporate debt – all other	—				5,152,485				2,661,633				7,814,118
	Equities – common stock	4,689,131				683,956				6,468,956				11,842,043
	Equities – preferred stock	3,888				5,208				862,800				871,896
	Real estate	—				34,340				5,855,710				5,890,050
	Real estate loan portfolio	—				—				1,979,132				1,979,132
	Other	1,888				1,467				14,115				17,470
	Total investments	$	4,694,907			$	13,938,266			$	20,131,254			$	38,764,427
	Securities sold short – equities	$	(120,598	)		$	—			$	—			$	(120,598	)
	Options written (net)	$	—			$	287			$	—			$	287
	Swaps (net)	—				8,635				74,797				83,432
	Forward contracts (net)	—				(132,386		)		—				(132,386		)
	Futures (net)	844				—				—				844
	As of December 31, 2012:	Level I				Level II				Level III				Total
	Corporate debt – bank debt	$	—			$	7,412,691			$	2,253,476			$	9,666,167
	Corporate debt – all other	—				6,663,519				3,159,051				9,822,570
	Equities – common stock	3,362,742				1,055,465				8,101,051				12,519,258
	Equities – preferred stock	2,520				2,133				650,096				654,749
	Real estate	—				—				3,946,142				3,946,142
	Real estate loan portfolio	—				—				1,737,822				1,737,822
	Other	1,933				8,438				15,547				25,918
	Total investments	$	3,367,195			$	15,142,246			$	19,863,185			$	38,372,626
	Securities sold short – equities	$	(126,530	)		$	—			$	—			$	(126,530	)
	Options written (net)	$	—			$	5,520			$	—			$	5,520
	Swaps (net)	—				(5,539		)		44,705				39,166
	Forward contracts (net)	—				(93,863		)		—				(93,863		)
	Futures (net)	90				—				—				90
	The following tables set forth a summary of changes in the fair value of the Level III investments:
			Corporate Debt – Bank Debt				Corporate Debt – All Other				Equities – Common Stock				Equities – Preferred Stock			Real Estate			Real Estate Loan Portfolio			Swaps		Other			Total
	Three Months Ended September 30, 2013:
	Beginning balance		$	1,711,680			$	2,535,280			$	7,373,118			$	663,523		$	5,199,534		$	1,989,515		$	55,817	$	14,516		$	19,542,983
	Transfers into Level III		276,696				48,124				105,583				118,496			—			—			—		—			548,899
	Transfers out of Level III		(72,043		)		(14,544		)		(654,361		)		(9,991		)	—			—			—		—			(750,939		)
	Purchases		533,073				240,959				334,417				105,921			624,020			253,669			—		—			2,092,059
	Sales		(280,820		)		(254,764		)		(860,649		)		(723		)	(148,528		)	(357,451		)	—		—			(1,902,935		)
	Realized gains (losses), net		19,096				65,722				397,272				164			24,190			9,781			—		—			516,225
	Unrealized appreciation (depreciation), net		101,226				40,856				(226,424		)		(14,590		)	156,494			83,618			18,980		(401		)	159,759
	Ending balance		$	2,288,908			$	2,661,633			$	6,468,956			$	862,800		$	5,855,710		$	1,979,132		$	74,797	$	14,115		$	20,206,051
	Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period		$	102,940			$	22,270			$	(14,316	)		$	30,688		$	138,039		$	83,618		$	18,973	$	(344	)	$	381,868
	Three Months Ended September 30, 2012:
	Beginning balance		$	2,424,016			$	3,054,677			$	7,180,826			$	1,046,978		$	3,132,225		$	712,145		$	—	$	19,965		$	17,570,832
	Transfers into Level III		1,403				234,196				102,504				1,164			—			—			—		—			339,267
	Transfers out of Level III		(319,348		)		(389,549		)		(11,424		)		—			—			—			—		—			(720,321		)
	Purchases		652,231				333,320				23,065				51,479			352,462			1,008,622			—		—			2,421,179
	Sales		(197,648		)		(89,188		)		(118,584		)		(277,090		)	(182,159		)	(528,500		)	—		(7,835		)	(1,401,004		)
	Realized gains (losses), net		25,762				7,536				41,470				273,589			(7,402		)	8,256			—		5,516			354,727
	Unrealized appreciation (depreciation), net		27,074				24,186				203,827				(255,308		)	194,118			25,410			—		(2,608		)	216,699
	Ending balance		$	2,613,490			$	3,175,178			$	7,421,684			$	840,812		$	3,489,244		$	1,225,933		$	—	$	15,038		$	18,781,379
	Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period		$	1,492			$	24,723			$	267,576			$	26,859		$	207,526		$	79,306		$	—	$	(1,214	)	$	606,268
			Corporate Debt – Bank Debt				Corporate Debt – All Other				Equities – Common Stock				Equities – Preferred Stock			Real Estate			Real Estate Loan Portfolio			Swaps		Other			Total
	Nine Months Ended September 30, 2013:
	Beginning balance		$	2,253,476			$	3,159,051			$	8,101,051			$	650,096		$	3,946,142		$	1,737,822		$	44,705	$	15,547		$	19,907,890
	Transfers into Level III		440,605				59,544				698,735				385,099			15,055			—			—		—			1,599,038
	Transfers out of Level III		(669,172		)		(215,738		)		(1,059,337		)		(9,991		)	—			—			—		—			(1,954,238		)
	Purchases		827,924				358,510				685,588				203,315			1,556,156			849,342			—		—			4,480,835
	Sales		(708,296		)		(898,672		)		(2,277,253		)		(312,669		)	(497,633		)	(810,873		)	—		—			(5,505,396		)
	Realized gains (losses), net		18,523				157,027				922,320				55,985			169,388			27,713			—		—			1,350,956
Unrealized appreciation (depreciation), net		125,848				41,911				(602,148		)		(109,035		)	666,602			175,128			30,092		(1,432		)	326,966
Ending balance		$	2,288,908			$	2,661,633			$	6,468,956			$	862,800		$	5,855,710		$	1,979,132		$	74,797	$	14,115		$	20,206,051
Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period		$	90,534			$	101,485			$	119,749			$	(50,371	)	$	616,914		$	175,128		$	30,092	$	(1,376	)	$	1,082,155
Nine Months Ended September 30, 2012:
Beginning balance		$	1,978,637			$	3,155,241			$	6,164,025			$	1,090,107		$	2,786,862		$	479,690		$	—	$	18,824		$	15,673,386
Transfers into Level III		377,015				606,212				567,143				8,151			17,275			—			—		—			1,575,796
Transfers out of Level III		(538,993		)		(590,324		)		(371,106		)		(100,064		)	(5,353		)	—			—		—			(1,605,840		)
Purchases		1,355,860				745,392				637,685				95,040			1,072,682			1,236,118			—		—			5,142,777
Sales		(561,188		)		(953,083		)		(189,821		)		(280,947		)	(786,375		)	(592,355		)	—		(7,835		)	(3,371,604		)
Realized gains (losses), net		35,655				107,829				(19,541		)		270,390			236,762			23,174			—		5,516			659,785
Unrealized appreciation (depreciation), net		(33,496		)		103,911				633,299				(241,865		)	167,391			79,306			—		(1,467		)	707,079
Ending balance		$	2,613,490			$	3,175,178			$	7,421,684			$	840,812		$	3,489,244		$	1,225,933		$	—	$	15,038		$	18,781,379
Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period		$	(8,054	)		$	156,816			$	552,674			$	41,154		$	364,835		$	79,306		$	—	$	(73	)	$	1,186,658
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 on consolidated funds' investments in the condensed consolidated statements of operations.
There were no transfers between Level I and Level II positions for the three months ended September 30, 2013. Transfers between Level I and Level II positions for the nine months ended September 30, 2013 included $1,066.8 million from Level II to Level I, as an investment in common equity began trading on a securities exchange. Transfers between Level I and Level II positions for the three and nine months ended September 30, 2012 included $17.6 million from Level II to Level I, as certain securities began trading on a securities exchange.
Transfers out of Level III were generally attributable to certain investments that experienced a more significant level of market activity during the period and thus were valued using observable inputs. Transfers into Level III were typically due to certain investments that experienced a less significant level of market 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 technique and quantitative information utilized in determining the fair value of the Company's Level III investments as of September 30, 2013:
Investment Type		Fair Value				Valuation Technique		Significant Unobservable Inputs (9)(10)(11)
Credit-oriented investments:
		$	1,245,372			Discounted cash flow (1)		Discount rate
								(range: 8% - 19%)
		1,264,193				Market approach (comparable companies) (2)		Earnings multiple (3)
								(range: 4x - 9x)
		204,597				Market approach (value of underlying assets) (2)(4)		Underlying asset multiple
								(range: 0.9x - 1.1x)
		961,333				Recent transaction price (5)		Not applicable
		364,961				Discounted cash flow (1) / Sales approach (8)		Discount rate
								(range: 13% - 33%)
								Market transactions
		984,882				Recent market information (6)		Quoted prices / discount (discount not applicable)
Equity investments:
		5,126,645				Market approach (comparable companies) (2)		Earnings multiple (3)
								(range: 3x - 13x)
		891,062				Market approach (value of underlying assets) (2)(4)		Underlying asset multiple
								(range: 1x - 1.4x)
		1,164,874				Recent transaction price (5)		Not applicable
		111,323				Discounted cash flow (1)		Discount rate
								(range: 11% - 13%)
		37,852				Recent market information (6)		Quoted prices / discount (discount not applicable)
Real estate-oriented
investments:
		1,846,201				Discounted cash flow (1)(7)		Discount rate
								(range: 8% - 40%)
								Terminal capitalization rate
								(range: 6% - 15%)
								Direct capitalization rate
								(range: 7% - 9%)
								Net operating income growth rate
								(range: 1% - 31%)
								Absorption rate
								(range: 16% - 33%)
		1,013,953				Market approach (comparable companies) (2)		Earnings multiple (3)
								(range: 6x - 12x)
		397,321				Market approach (value of underlying assets) (2)(4)		Underlying asset multiple
								(range: 1.1x - 1.3x)
		962,463				Recent transaction price (5)		Not applicable
		472,869				Sales approach (8)		Market transactions
		1,162,903				Recent market information (6)		Quoted prices / discount (discount range: 0% - 6%)
Real estate loan portfolios:
		496,282				Recent transaction price (5)		Not applicable
		1,482,850				Discounted cash flow (1)(7)		Discount rate
								(range: 12% - 30%)
Other		14,115
Total Level III investments		$	20,206,051
-1	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, certain real estate-oriented investments and certain real estate loan portfolios.
-2	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.
-3	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.
-4	A market approach using the value of underlying assets utilizes a multiple, based on comparable companies, of underlying assets or the net book value of the portfolio company. The Company typically obtains the value of underlying assets from the underlying portfolio company's financial statements or from pricing vendors. The Company may value the underlying assets by using prices and other relevant information from market transactions involving comparable assets.
-5	Certain investments are valued based on recent transactions, generally defined as investments purchased or sold within six months of the valuation date, adjusted when appropriate based on changes in significant unobservable inputs, valuations of comparable companies and other similar transactions. The fair value may also be based on a pending transaction expected to close after the valuation date.
-6	Certain investments are valued using quoted prices 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. Quoted prices include exchange-listed prices and prices obtained from brokers or pricing vendors. Prices obtained from brokers or pricing vendors are evaluated based on trading activity of the subject or similar securities or comparable-yield analysis.
-7	The discounted cash flow model for certain real estate-oriented investments and certain real estate loan portfolios contains a sell-out analysis. In these cases, the discounted cash flow is based on the expected timing and prices of sales of the underlying properties. The Company's determination of the sales prices of these properties typically includes consideration of prices and other relevant information from market transactions involving comparable properties.
-8	The sales approach uses prices and other relevant information generated by market transactions involving comparable assets. The significant unobservable inputs used in the sales approach generally include adjustments to transactions involving comparable assets or properties, adjustments to external or internal appraised values, and the Company's assumptions regarding market trends or other relevant factors.
-9	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 certain real estate loan portfolios. An increase (decrease) in the discount rate would result in a lower (higher) fair-value measurement.
-10	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.
-11	The significant unobservable inputs used in the fair-value measurement of real estate investments utilizing a discounted cash flow analysis can include one or more of the following: discount rate, terminal capitalization rate, direct capitalization rate, net operating income growth rate or absorption rate. An increase (decrease) in a discount rate, terminal capitalization rate or direct capitalization rate would result in a lower (higher) fair-value measurement. An increase (decrease) in a net operating income growth rate or absorption rate would result in a higher (lower) fair-value measurement. Generally, a change in a net operating income growth rate or absorption rate would be accompanied by a directionally similar change in the discount rate.
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 obtain unobservable inputs. These sources may include third-party vendors that the Company believes are reliable and commonly utilized by other market place participants. As described in note 2, other factors beyond the unobservable inputs described above have a significant impact on investment valuations.
During the nine months ended September 30, 2013, there were changes in the techniques used for purposes of valuing certain Level III-type investments. One real estate-oriented investment commenced trading on a securities exchange; thus, it changed from a market approach based on the value of underlying assets to a valuation based on recent market information, as adjusted for factors stemming from the structure of the equity interests owned by the consolidated funds. Additionally, the valuation technique for certain real estate loan portfolios changed to a discounted cash flow method from a combination of recent market and sales information, as a result of a lack of recent market transaction data. During the nine months ended September 30, 2012, there were no changes in techniques used to value Level III investments.

HEDGES_AND_OTHER_DERIVATIVE_FI

HEDGES AND OTHER DERIVATIVE FINANCIAL INSTRUMENTS	9 Months Ended
	Sep. 30, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
HEDGES AND OTHER DERIVATIVE FINANCIAL INSTRUMENTS	'
	HEDGES AND OTHER DERIVATIVE FINANCIAL INSTRUMENTS
	The Company enters into derivative financial instruments 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 derivative financial instruments 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, or (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 ratings. Counterparty credit risk is evaluated in determining the fair value of derivative instruments.
	In January 2013, the Company entered into an interest-rate swap with a notional value of $175.0 million, of which $168.8 million was designated to hedge a portion of the interest-rate risk associated with its variable-rate borrowings. In conjunction with the Company’s existing interest-rate swap, this swap effectively fixed the annual interest rate at a blended rate of 2.60% on the bulk of the first four years of the Company's term loan facility, based on the Company’s current credit ratings.
	As of September 30, 2013, the Company had two interest-rate swaps designated as cash-flow hedges with a combined notional value of $386.3 million. These hedges continued to be effective as of September 30, 2013. As of December 31, 2012, the Company had one interest-rate swap designated as a cash-flow hedge with a notional value of $240.0 million.
	In August 2013, to facilitate its investment management activities, the Company entered into a two-year total return swap (“TRS”) agreement with a financial institution to meet certain investment objectives for which the primary risk exposure is credit. Pursuant to the TRS agreement, as of September 30, 2013, the Company deposited $40 million in cash collateral with the counterparty and had the ability to access up to $200 million of U.S. dollar-denominated debt securities underlying the TRS. The Company will be entitled to receive or obligated to pay certain amounts based on the interest income or expense, as well as changes in the market values, of the TRS's underlying reference securities. The Company pays interest on the outstanding notional amount of the underlying reference securities at a spread to LIBOR. The TRS's fair value is based on changes in the fair value of the underlying reference securities, which are recorded as unrealized gains or losses until realized.
	Freestanding derivatives are instruments that the Company enters into as part of its overall risk management strategy but does not designate as hedging instruments for accounting purposes. These instruments may include foreign exchange contracts, interest-rate swaps and other derivative contracts.
	The fair value of forward currency sell contracts, which are recorded within the same caption as the underlying hedged items in the condensed consolidated statements of financial condition, consisted of the following:
	As of September 30, 2013:	Contract			Contract				Market				Net Unrealized
		Amount in			Amount in				Value in				Appreciation
		Local Currency			U.S. Dollars				U.S. Dollars				(Depreciation)
	Euro, expiring 10/4/13-7/31/14	110,360			$	144,894			$	149,326			$	(4,432	)
	USD (buy GBP), expiring 10/4/13-6/27/14	59,511			59,511				56,395				3,116
	GBP, expiring 4/30/14	3,000			4,643				4,848				(205		)
	Japanese Yen, expiring 11/27/13-1/30/15	5,468,700			55,955				55,835				120
	Total				$	265,003			$	266,404			$	(1,401	)
	As of December 31, 2012:
	Euro, expiring 1/7/13-10/31/13	93,500			$	104,155			$	105,997			$	(1,842	)
	Japanese Yen, expiring 2/28/13-5/31/13	1,330,000			16,418				15,379				1,039
	Total				$	120,573			$	121,376			$	(803	)
	The fair value of the TRS contract, which is included in other assets in the condensed consolidated statements of financial condition, consisted of the following:
	As of September 30, 2013	Notional				Fair Value
	Total-return swap	$	135,561			$	132
	Realized and unrealized gains and losses arising from freestanding derivative instruments were recorded on the condensed consolidated statements of operations as follows:
		For the Three Months								For the Nine Months
		Ended September 30,								Ended September 30,
	Foreign Currency Forward Contracts:	2013				2012				2013				2012
	General and administrative expenses (1)	$	(3,531	)		$	(1,483	)		$	1,318			$	1,543
	Total-return Swap:
	Other income (expense), net	$	132			$	—			$	132			$	—
	-1	To the extent that the Company's freestanding derivatives are utilized to hedge its 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 of expenses) reflected in consolidated general and administrative expenses.
	As of both September 30, 2013 and December 31, 2012, the Company had not designated any derivatives as fair-value hedges or hedges of net investments in foreign operations.
	Derivatives Held By Consolidated Funds
	Certain consolidated funds utilize derivative instruments in ongoing investment operations. These derivatives primarily consist of foreign currency forward contracts utilized to manage currency risk, options and futures used to hedge exposure for specific securities, and total-return swaps and credit-default swaps utilized mainly to obtain exposure to leveraged loans or to participate in foreign markets not readily accessible. None of the derivative instruments is accounted for as a hedging instrument utilizing hedge accounting.
	The impact of derivative instruments held by the consolidated funds on the condensed consolidated statements of operations for the three and nine months ended September 30, 2013 and 2012 was as follows:
		Three Months Ended September 30,
		2013								2012
		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
	Total-return, credit-default and interest-rate swaps	$	(1,235	)		$	19,637			$	28,849			$	2,189
	Foreign currency forward contracts	9,382				(222,589		)		40,148				(135,228		)
	Options and futures	(2,871		)		(5,817		)		199				(6,380		)
	Total	$	5,276			$	(208,769	)		$	69,196			$	(139,419	)
		Nine Months Ended September 30,
		2013								2012
		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
	Total-return, credit-default and interest-rate swaps	$	2,648			$	44,396			$	59,313			$	38,311
	Foreign currency forward contracts	28,934				(38,598		)		103,052				(137,422		)
	Options and futures	(8,681		)		2,762				(12,318		)		(1,904		)
	Total	$	22,901			$	8,560			$	150,047			$	(101,015	)
	Although the Company generally presents derivative instruments on a gross basis in its condensed consolidated statements of financial condition, certain derivative instruments, primarily held by the consolidated funds, are subject to enforceable master netting arrangements with certain counterparties which allow for the derivative instruments to be offset. The table below sets forth the rights of setoff and related arrangements associated with the Company's derivative instruments:
		Gross Amounts of Assets (Liabilities)				Gross Amounts Offset in Assets (Liabilities)				Net Amounts of Assets (Liabilities) Presented				Gross Amounts Not Offset in Statements of Financial Condition						Net Amount
	As of September 30, 2013													Derivative Assets (Liabilities)			Cash Collateral Received (Pledged)
	Derivative Assets:
	Foreign currency forward contracts	$	4,009			$	4,009			$	—			$	—		$	—		$	—
	Total-return swaps	132				—				132				—			—			132
	Subtotal	4,141				4,009				132				—			—			132
	Derivative assets of consolidated funds:
	Foreign currency forward contracts	16,989				52				16,937				13,388			—			3,549
	Total-return, credit-default and interest-rate swaps	83,191				—				83,191				91			—			83,100
	Options and futures	4,603				—				4,603				—			—			4,603
	Swaptions	2,126				—				2,126				—			—			2,126
	Subtotal	106,909				52				106,857				13,479			—			93,378
	Total	$	111,050			$	4,061			$	106,989			$	13,479		$	—		$	93,510
	Derivative Liabilities:
Foreign currency forward contracts	$	(5,410	)		$	(4,009	)		$	(1,401	)		$	(6	)	$	—		$	(1,395	)
Interest-rate swaps	(4,900		)		—				(4,900		)		6			—			(4,906		)
Subtotal	(10,310		)		(4,009		)		(6,301		)		—			—			(6,301		)
Derivative liabilities of consolidated funds:
Foreign currency forward contracts	(149,375		)		(52		)		(149,323		)		(13,388		)	—			(135,935		)
Total-return, credit-default and interest-rate swaps	(1,885		)		—				(1,885		)		(91		)	—			(1,794		)
Options and futures	(3,472		)		—				(3,472		)		—			—			(3,472		)
Subtotal	(154,732		)		(52		)		(154,680		)		(13,479		)	—			(141,201		)
Total	$	(165,042	)		$	(4,061	)		$	(160,981	)		$	(13,479	)	$	—		$	(147,502	)
	Gross Amounts of Assets (Liabilities)				Gross Amounts Offset in Assets (Liabilities)				Net Amounts of Assets (Liabilities) Presented				Gross Amounts Not Offset in Statements of Financial Condition						Net Amount
As of December 31, 2012													Derivative Assets (Liabilities)			Cash Collateral Received (Pledged)
Derivative Assets:
Foreign currency forward contracts	$	1,558			$	1,558			$	—			$	(549	)	$	—		$	549
Derivative assets of consolidated funds:
Foreign currency forward contracts	52,663				—				52,663				34,139			—			18,524
Total-return, credit-default and interest-rate swaps	48,727				—				48,727				312			340			48,075
Options and futures	6,170				—				6,170				—			—			6,170
Subtotal	107,560				—				107,560				34,451			340			72,769
Total	$	109,118			$	1,558			$	107,560			$	33,902		$	340		$	73,318
Derivative Liabilities:
Foreign currency forward contracts	$	(2,361	)		$	(1,558	)		$	(803	)		$	654		$	—		$	(1,457	)
Interest-rate swaps	(7,900		)		—				(7,900		)		(105		)	—			(7,795		)
Subtotal	(10,261		)		(1,558		)		(8,703		)		549			—			(9,252		)
Derivative liabilities of consolidated funds:
Foreign currency forward contracts	(146,526		)		—				(146,526		)		(34,139		)	(632		)	(111,755		)
Total-return, credit-default and interest-rate swaps	(9,561		)		—				(9,561		)		(312		)	(1,828		)	(7,421		)
Options and futures	(560		)		—				(560		)		—			(47		)	(513		)
Subtotal	(156,647		)		—				(156,647		)		(34,451		)	(2,507		)	(119,689		)
Total	$	(166,908	)		$	(1,558	)		$	(165,350	)		$	(33,902	)	$	(2,507	)	$	(128,941	)

DEBT_OBLIGATIONS_AND_CREDIT_FA

DEBT OBLIGATIONS AND CREDIT FACILITIES	9 Months Ended
	Sep. 30, 2013
Debt Disclosure [Abstract]	'
DEBT OBLIGATIONS AND CREDIT FACILITIES	'
	DEBT OBLIGATIONS AND CREDIT FACILITIES
	The Company had the following debt obligations as of September 30, 2013 and December 31, 2012:
		As of
		September 30,		December 31,
		2013		2012
	$75,000, 5.03%, issued in June 2004, payable in seven equal annual installments starting June 14, 2008	$	10,714	$	21,429
	$50,000, 6.09%, issued in June 2006, payable on June 6, 2016	50,000		50,000
	$50,000, 5.82%, issued in November 2006, payable on November 8, 2016	50,000		50,000
	$250,000, 6.75%, issued in November 2009, payable on December 2, 2019	250,000		250,000
	$250,000, rate as described below, term loan issued in December 2012, payable 2.5% per quarter through September 2017, final $125,000 payment on December 21, 2017	225,000		243,750
	Total remaining principal	$	585,714	$	615,179
	Future principal payments of debt obligations as of September 30, 2013 were as follows:
	Remainder of 2013	$	6,250
	2014	35,714
	2015	25,000
	2016	125,000
	2017	143,750
	Thereafter	250,000
	Total	$	585,714
	The Company was in compliance with all financial covenants associated with its senior notes and credit facility as of September 30, 2013 and December 31, 2012.
	In December 2012, the Company's subsidiaries Oaktree Capital Management, L.P., Oaktree Capital II, L.P., Oaktree AIF Investments, L.P. and Oaktree Capital I, L.P. entered into a credit agreement (the “Credit Facility”) with a bank syndicate for senior unsecured credit facilities, consisting of a $250.0 million fully-funded term loan (the “Term Loan”) and a $500.0 million revolving credit facility (the “Revolver”), each with a five-year term. The Credit Facility replaced the previous undrawn credit facility and the Term Loan replaced the prior amortizing term loan, which had a principal balance of $247.5 million. The Term Loan amortizes quarterly in an amount equal to 2.5% of the original principal amount of $250.0 million, with principal payments due in March, June, September and December of each year, and the remaining principal payable upon maturity in December 2017. Borrowings under the Credit Facility 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 Revolver is 0.125% per annum. Utilizing interest-rate swaps, the bulk of the first four years of the Term Loan's annual interest rate is fixed at 2.60%, based on the current credit ratings of Oaktree Capital Management, L.P. The Credit Facility contains customary financial covenants and restrictions, including ones regarding a maximum leverage ratio of 3.0-to-1.0, minimum fixed charge coverage ratio of 2.5-to-1.0 and minimum required levels of assets under management and net worth (as defined in the credit agreement) of $50 billion and $600 million, respectively. As of September 30, 2013, the Company had no outstanding borrowings under the Revolver and was able to draw the full amount available without violating any financial covenants.
	Credit Facilities of the Consolidated Funds
	Certain of the consolidated funds maintain revolving credit facilities to fund investments between capital drawdowns. These facilities generally (a) are collateralized by the unfunded capital commitments of the consolidated funds' limited partners, (b) bear an annual commitment fee based on unfunded commitments, and (c) contain various affirmative and negative covenants and reporting obligations, including restrictions on additional indebtedness, liens, margin stock, affiliate transactions, dividends and distributions, release of capital commitments, and portfolio asset dispositions. The obligations of the consolidated funds are nonrecourse to the Company. For all periods presented, carrying value approximates fair value of the credit facilities due to their short-term nature or their recent issuance date. As of and for the nine months ended September 30, 2013, the consolidated funds were in compliance with all covenants.
	The consolidated funds had the following revolving credit facilities and term loans outstanding:
	Credit agreement	Outstanding Amount as of				Facility Capacity		LIBOR		Maturity	Commitment Fee Rate		L/C Fee (2)
		September 30,		December 31,				Margin (1)
		2013		2012
	Credit facility (3)(4)	$	289,000	$	63,000	$	750,000	1.25	%	8/28/15	N/A		N/A
	Senior variable rate notes (4)	249,500		249,500		$	249,500	1.55	%	10/20/22	N/A		N/A
	Senior variable rate notes (4)	498,814		—		$	500,000	1.2	%	4/20/23	N/A		N/A
	Senior variable rate notes (4)	402,364		—		$	402,500	1.2	%	7/20/23	N/A		N/A
	Senior variable rate notes (4)	64,500		—		$	64,500	1.65	%	7/20/23	N/A		N/A
	Revolving credit facility	300,000		—		$	500,000	1.6	%	6/26/15	0.25	%	N/A
	Multi-currency term loan (5)	—		49,158		$	275,000	3	%	N/A	N/A		N/A
	Revolving credit facility	—		38,000		$	180,000	1.75	%	12/15/14	0.35	%	N/A
	Revolving credit facility	125,000		8,625		$	125,000	1.75	%	5/20/14	0.35	%	N/A
	Revolving credit facility	9,000		19,400		$	55,000	2	%	12/15/13	0.35	%	2	%
	Revolving credit facility	—		—		$	40,000	1.5	%	12/11/13	0.3	%	1.5	%
	Euro-denominated revolving credit facility	—		63,942		€	100,000	1.75	%	12/17/15	0.3	%	2	%
	Revolving credit facility	—		—		$	10,000	2.25	%	9/1/14	0.38	%	N/A
	Revolving credit facility	90,000		—		$	350,000	1.65	%	3/22/15	0.25	%	N/A
		$	2,028,178	$	491,625
	-1	The facilities bear interest, at the borrower's option, at (a) an annual rate of LIBOR plus the applicable margin or (b) an alternate base rate, as defined in the respective credit agreement.
	-2	Certain facilities allow for the issuance of letters of credit at an applicable annual fee. As of September 30, 2013 and December 31, 2012, outstanding standby letters of credit totaled $63,545 and $76,975, respectively.
	-3	Libor margin equals 1.25% through August 28, 2013 and 2.50% thereafter.
	-4	The credit facility is collateralized by the portfolio investments and cash and cash-equivalents of the fund.
	-5	The loan was fully repaid and terminated on September 20, 2013.

NONCONTROLLING_REDEEMABLE_INTE

NON-CONTROLLING REDEEMABLE INTERESTS IN CONSOLIDATED FUNDS	9 Months Ended
	Sep. 30, 2013
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:
		Nine Months Ended September 30,
		2013			2012
	Beginning balance	$	39,670,831		$	41,048,607
	Contributions	4,613,588			4,948,480
	Distributions	(10,033,373		)	(7,907,434		)
	Net income	3,743,327			4,868,300
	Change in distributions payable	234,409			125,741
	Change in accrued or deferred contributions	3,525			41,000
	Foreign currency translation and other	97,605			(21,152		)
	Ending balance	$	38,329,912		$	43,103,542

UNITHOLDERS_CAPITAL

UNITHOLDERS' CAPITAL	9 Months Ended
	Sep. 30, 2013
Stockholders' Equity Note [Abstract]	'
UNITHOLDERS' CAPITAL	'
	UNITHOLDERS’ CAPITAL
	The OCGH unitholders’ economic interest in the Oaktree Operating Group is reflected as OCGH non-controlling interest in consolidated subsidiaries and 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 September 30, 2013 and December 31, 2012, respectively, OCGH units represented 112,821,276 of the total 151,060,717 Oaktree Operating Group units and 120,267,503 units of the total 150,448,436 Oaktree Operating Group units. Based on total Oaktree Operating Group capital of $1,496,709 and $1,360,331 as of September 30, 2013 and December 31, 2012, respectively, the OCGH non-controlling interest was $1,117,830 and $1,087,491.
	The following table sets forth a summary of the net income attributable to the OCGH non-controlling interest and to the Class A unitholders:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Weighted average Oaktree Operating Group units outstanding (in thousands):
	OCGH non-controlling interest	112,791			120,283			117,103			123,070
	Class A unitholders	38,239			30,181			33,845			27,494
	Total weighted average units outstanding	151,030			150,464			150,948			150,564
	Oaktree Operating Group net income:
	Net income attributable to OCGH non-controlling interest	$	129,408		$	119,235		$	617,191		$	379,356
	Net income attributable to Class A unitholders	43,875			29,920			172,631			84,444
	Oaktree Operating Group net income	$	173,283		$	149,155		$	789,822		$	463,800
	Net income attributable to Oaktree Capital Group, LLC:
	Oaktree Operating Group net income attributable to Class A unitholders	$	43,875		$	29,920		$	172,631		$	84,444
	Non-Operating Group other income	—			—			—			6,260
	Non-Operating Group expenses	(271		)	(115		)	(947		)	(393		)
	Income tax expense of Intermediate Holding Companies	(656		)	(4,593		)	(14,593		)	(21,772		)
	Net income attributable to Oaktree Capital Group, LLC	$	42,948		$	25,212		$	157,091		$	68,539
	Set forth below are the effects of changes in the Company’s ownership interest in the Oaktree Operating Group:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Net income attributable to Oaktree Capital Group, LLC	$	42,948		$	25,212		$	157,091		$	68,539
	Equity reallocation between controlling and non-controlling interests	(160		)	(74		)	76,685			69,101
	Change from net income attributable to Oaktree Capital Group, LLC and transfers from (to) non-controlling interest	$	42,788		$	25,138		$	233,776		$	137,640
	On May 29, 2013, the Company issued and sold 8,050,000 Class A units in a public offering at a price to the public of $53.50 per Class A unit (the “May 2013 Offering”), resulting in $419.9 million in net proceeds to the Company, after deducting underwriting discounts and commissions. The Company did not retain any proceeds from the sale of Class A units in the May 2013 Offering. The net proceeds from the May 2013 Offering were used to acquire interests in the Company's business from certain of the Company's directors, employees and other investors, including certain principals and other members of the Company's senior management.
	Please see notes 9 and 10 for additional information regarding transactions that impacted unitholders' capital.

EARNINGS_PER_UNIT

EARNINGS PER UNIT	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
EARNINGS PER UNIT	'
	EARNINGS PER UNIT
	The computations of net income per Class A unit are set forth below:
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Weighted average units outstanding:	(in thousands, except per unit amounts)
	Class A units outstanding	38,239		30,181		33,845		27,494
	OCGH units exchangeable into Class A units (1)	—		—		—		—
	Total weighted average units outstanding	38,239		30,181		33,845		27,494
	Net income per Class A unit:
	Net income	$	42,948	$	25,212	$	157,091	$	68,539
	Weighted average units outstanding	38,239		30,181		33,845		27,494
	Basic and diluted net income per Class A unit	$	1.12	$	0.84	$	4.64	$	2.49
	-1	Vested OCGH units are potentially exchangeable on a one-for-one basis into Class A units. As of September 30, 2013, there were 112,821,276 OCGH units outstanding, accordingly, the Company may cumulatively issue up to 112,821,276 additional Class A units through August 1, 2023 if all such units were exchanged. For all periods presented, OCGH units have been excluded from the calculation of diluted earnings per unit because the exchange of these units would proportionally increase Oaktree Capital Group, LLC’s interest in the Oaktree Operating Group and could have an anti-dilutive effect on earnings per unit to the extent that tax-related or other expenses were incurred by the Company as a result of the exchange.

EQUITYBASED_COMPENSATION

EQUITY-BASED COMPENSATION	9 Months Ended
	Sep. 30, 2013
Share-based Compensation [Abstract]	'
EQUITY-BASED COMPENSATION	'
	EQUITY-BASED COMPENSATION
	During the nine months ended September 30, 2013, the Company granted 663,000 restricted OCGH units and 100,000 deferred OCGH units to certain of its employees and 8,508 Class A units to certain of its directors, subject to equal annual vesting generally over periods of five or ten years. The grant date fair value of all OCGH units awarded in 2013 was determined by applying a discount ranging from 25% to 30% to the Class A unit trading price on the New York Stock Exchange, and assumed a forfeiture rate, based on expected employee turnover, of up to 1.5% annually.
	As of September 30, 2013, the Company expected to recognize compensation expense on its unvested equity-based awards of $107.5 million over a weighted average recognition period of 5.2 years.
	A summary of the status of the Company’s unvested equity-based awards as of September 30, 2013 and a summary of changes for the nine months then ended are presented below (actual dollars per unit):
		Class A Units				OCGH Units
		Number of Units		Weighted Average Grant Date Fair Value		Number of Units		Weighted Average Grant Date Fair Value
	Balance, December 31, 2012	11,669		$	41.91	4,902,348		$	28.17
	Granted	8,508		47.83		763,000		34.6
	Vested	(3,069	)	39.4		(1,103,569	)	23.8
	Forfeited	—		—		(43,600	)	30.05
	Balance, September 30, 2013	17,108		$	45.3	4,518,179		$	30.3
	As of September 30, 2013, unvested units were expected to vest as follows:
		Number of		Weighted
		Units		Average
				Remaining
				Service Term
				(Years)
	Class A units	17,108		3.7
	OCGH units	4,518,179		5.2

INCOME_TAXES_AND_RELATED_PAYME

INCOME TAXES AND RELATED PAYMENTS	9 Months Ended
	Sep. 30, 2013
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 income tax rate is dependent on many factors, including the estimated nature of many amounts and the mix of revenues and expenses between the two corporate subsidiaries that are subject to income taxes and the three other subsidiaries that are not; consequently, the effective income tax rate is subject to significant variation from period to period. The Company's effective income tax rate used for interim periods is based on the estimated full-year income tax rate.
	U.S. and non-U.S. taxing authorities are currently examining certain income tax returns of Oaktree, with certain of these examinations at an advanced stage. The Company believes that it is reasonably possible that one outcome of these current examinations, combined with other issues, may be to reduce in the next 12 months approximately $8 million to $10 million of previously accrued Operating Group income taxes. Other issues are related to years with expiring statutes of limitation. 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 financial position or results of operations. However, there can be no assurances as to the ultimate outcomes.
	Tax Receivable Agreement
	The exchange of OCGH units in connection with the May 2013 Offering resulted in increases in the tax basis of the tangible and intangible assets of the Oaktree Operating Group. As a result, the Company recorded a deferred tax asset of $134.4 million and an associated liability of $114.2 million for payments to OCGH unitholders under the tax receivable agreement, which together increased capital by $20.2 million. These payments are expected to occur over the period ending approximately in 2035.
	No amounts were paid under the tax receivable agreement during the nine months ended September 30, 2013.

COMMITMENTS_AND_CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	9 Months Ended
	Sep. 30, 2013
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
	Periodically, the Company is a party to legal actions arising in the ordinary course of business. The Company is currently not subject to any pending actions that either individually or in the aggregate are expected to have a material impact on its results of operations, cash flows or financial condition.
	On June 8, 2011, Kaplan Industry, Inc. v. Oaktree Capital Management, L.P. was filed in the U.S. District Court for the Southern District of Florida. In Kaplan, the plaintiff alleges that Oaktree Capital Management, L.P. tortiously interfered with a business relationship and engaged in a civil conspiracy through the actions of Gulmar Offshore Middle East, LLC (“Gulmar”), a business acquired by subsidiaries of OCM European Principal Opportunities Fund II, L.P. (“EPOF II”). Oaktree Capital Management, L.P. serves as investment manager to EPOF II. The complaint alleges that Gulmar breached a consortium agreement between Gulmar and Kaplan Industry, Inc. relating to the consortium’s performance of services to Petróleos de Venezuela, S.A., the state-owned oil producer of Venezuela. The plaintiff alleges that Oaktree is responsible for these breaches by Gulmar. The complaint seeks damages in excess of $800 million. The substance of the claim relates almost exclusively to actions by Gulmar prior to EPOF II’s acquisition and the basis of the claim is currently subject to an ongoing arbitration in the United Kingdom between Kaplan and Gulmar. On August 18, 2011, the court granted Oaktree Capital Management, L.P.’s motion to stay pending the completion of a related arbitration proceeding in London. Oaktree Capital Management, L.P. believes the case is without merit and that any exposure to loss is remote.
	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 NAV. Inasmuch as this incentive income is contingent upon future investment activity and other factors, it is not recognized by the Company until it is fixed or otherwise determinable. As of September 30, 2013 and December 31, 2012, the aggregate of such amounts recorded at the fund level in excess of incentive income recognized by the Company was $2,103,533 and $2,137,798, respectively, for which related direct incentive income compensation expense was estimated to be $903,134 and $855,604, respectively.
	Commitments to Funds
	As of September 30, 2013 and December 31, 2012, the Company, generally in the capacity as general partner, had undrawn capital commitments of $291,945 and $265,401, respectively, including commitments to both non-consolidated and consolidated funds.
	Investment Commitments of Consolidated Funds
	The consolidated funds are parties to certain credit agreements, providing for the issuance of letters of credit and revolving loans, which may require the consolidated funds to extend additional loans to investee companies. The consolidated funds use the same investment criteria in making these unrecorded commitments as they do for investments that are included in the condensed consolidated statements of financial condition. The unfunded liability associated with these credit agreements is equal to the amount by which the contractual loan commitment exceeds the sum of the amount of funded debt and cash held in escrow, if any. As of September 30, 2013 and December 31, 2012, the consolidated funds had aggregate potential credit and investment commitments of $1,137,348 and $912,001, respectively. These commitments will be funded by the funds’ aggregate cash balance, asset sales proceeds or drawdowns against existing capital commitments.
	A consolidated fund may agree to guarantee the repayment obligations of certain investee companies. On December 20, 2012, certain consolidated funds (“Funds”) entered into a £200 million revolving credit facility (the “RCF”) pursuant to which certain portfolio companies of the Funds (“the borrowers”) will be able to draw under the RCF during a three-year period.  The RCF has an annual commitment fee on unused commitments of 1.0% and bears interest at an annual rate equal to Libor or Euribor, as applicable, plus 2.0%.  The Funds guarantee the payment and other obligations of the borrowers under the RCF.  The amounts borrowed, accrued interest and other costs of the RCF will be paid by the portfolio companies. As of September 30, 2013 and December 31, 2012, there were $121.2 million and zero borrowings outstanding, respectively.  The Funds, as guarantors, must maintain compliance with certain financial covenants at all times. As of and for the nine months ended September 30, 2013, the Funds were in compliance with these financial covenants.
	The aggregate amounts guaranteed in addition to those described for the RCF were not material to the condensed consolidated financial statements as of September 30, 2013 and December 31, 2012.

RELATEDPARTY_TRANSACTIONS

RELATED-PARTY TRANSACTIONS	9 Months Ended
	Sep. 30, 2013
Related Party Transactions [Abstract]	'
RELATED PARTY TRANSACTIONS	'
	RELATED-PARTY TRANSACTIONS
	The Company considers its principals, employees and non-consolidated Oaktree funds to be affiliates. Amounts due from and to affiliates were comprised of the following:
		As of
		September 30,		December 31,
		2013		2012
	Due from affiliates:
	Loans	$	41,450	$	38,091
	Amounts due from non-consolidated funds	868		661
	Payments made on behalf of non-consolidated entities	3,229		3,444
	Non-interest bearing advances made to certain non-controlling interest holders and employees	3,529		2,393
	Total due from affiliates	$	49,076	$	44,589
	Due to affiliates:
	Due to OCGH unitholders in connection with the tax receivable agreement (please see note 11)	$	249,200	$	134,953
	Amounts due to principals, certain non-controlling interest holders and employees	1,090		1,212
	Total due to affiliates	$	250,290	$	136,165
	Loans
	Loans primarily consist of interest-bearing advances made to certain non-controlling interest holders, primarily the Company’s employees, to meet tax obligations related to vesting of equity awards. The notes, which are generally recourse to the borrower or secured by vested equity and other collateral, bear interest at the Company’s cost of capital and generated interest income of $1,283 and $1,048 for the nine months ended September 30, 2013 and 2012, respectively.
	Due From Oaktree Funds and Portfolio Companies
	In the normal course of business, the Company pays certain expenses on behalf of the Oaktree funds, for which it is reimbursed. Amounts advanced on behalf of consolidated funds are eliminated in consolidation. Certain expenses initially paid by the Company, primarily employee travel and other costs associated with particular portfolio company holdings, are reimbursed by the portfolio companies.
	Other Investment Transactions
	The Company’s principals, 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 certain employees are invested, the Company periodically advances on a short-term basis the capital calls on the employees' behalf. These advances are generally reimbursed toward the end of the calendar quarter in which the capital calls occurred. Amounts temporarily advanced by the Company are included in non-interest bearing advances made to certain non-controlling interest holders and employees.
	Aircraft Services
	A subsidiary of the Company leases an airplane for business purposes. The Company’s Chairman may use this aircraft for personal travel and, pursuant to a policy adopted by such subsidiary relating to such personal use, the Company is reimbursed by the Company’s Chairman for the costs of using the aircraft for personal travel.  Additionally, the Company occasionally makes use of an airplane owned by one of its principals for business purposes at a price to the Company that is based on market rates.
	Special Allocations
	Certain principals 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 only for so long as they remain principals of the Company.
	Transactions with Meyer Memorial Trust
	One of the Company’s directors, Mr. Pierson, is the Chief Financial and Investment Officer of Meyer Memorial Trust. Meyer Memorial Trust invests in certain Oaktree funds on the same terms as the other investors in those funds.

SEGMENT_REPORTING

SEGMENT REPORTING	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]	'
SEGMENT REPORTING	'
	SEGMENT REPORTING
	The Company’s business is comprised of one segment, the investment management segment. As a global investment manager, the Company provides investment management services through funds and separate accounts. Management makes operating decisions and assesses business performance based on financial and operating metrics and data that are presented without the consolidation of any funds.
	The Company conducts its investment management business primarily in the United States, where substantially all of its revenues are generated.
	Adjusted Net Income
	The Company’s chief operating decision maker uses adjusted net income (“ANI”) to help evaluate the financial performance of, and make resource allocations and other operating decisions for, the investment management segment. The components of revenues and expenses used in the determination of ANI do not give effect to the consolidation of the funds that the Company manages. In addition, ANI excludes the effect of (a) non-cash equity-based compensation charges related to unit grants made before the Company’s initial public offering, (b) income taxes, (c) other income or expenses applicable to Oaktree Capital Group, LLC or its Intermediate Holding Companies and (d) the adjustment for the OCGH non-controlling interest. ANI is calculated at the Oaktree Operating Group level.
	ANI was as follows:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Revenues:
	Management fees	$	185,580		$	182,587		$	552,281		$	562,692
	Incentive income	122,424			59,174			787,665			250,861
	Investment income	53,558			62,801			170,184			150,382
	Total revenues	361,562			304,562			1,510,130			963,935
	Expenses:
	Compensation and benefits	(95,561		)	(83,080		)	(279,344		)	(247,787		)
	Equity-based compensation	(1,070		)	(128		)	(2,646		)	(128		)
	Incentive income compensation	(49,222		)	(29,546		)	(308,446		)	(118,268		)
	General and administrative	(27,389		)	(24,429		)	(80,889		)	(73,665		)
	Depreciation and amortization	(1,791		)	(1,901		)	(5,266		)	(5,573		)
	Total expenses	(175,033		)	(139,084		)	(676,591		)	(445,421		)
	Adjusted net income before interest and other income (expense)	186,529			165,478			833,539			518,514
	Interest expense, net of interest income (1)	(7,074		)	(7,687		)	(21,617		)	(23,914		)
	Other income (expense), net	148			(59		)	412			2,274
	Adjusted net income	$	179,603		$	157,732		$	812,334		$	496,874
	-1	Interest income was $0.9 million and $0.8 million for the three months ended September 30, 2013 and 2012, respectively, and $2.4 million and $1.9 million for the nine months ended September 30, 2013 and 2012, respectively.
	A reconciliation of net income attributable to Oaktree Capital Group, LLC to adjusted net income of the investment management segment is presented below.
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Net income attributable to Oaktree Capital Group, LLC	$	42,948		$	25,212		$	157,091		$	68,539
	Equity-based compensation (1)	6,250			7,369			18,231			27,353
	Income taxes (2)	726			5,801			18,874			27,493
	Non-Operating Group other income (3)	—			—			—			(6,260		)
	Non-Operating Group expenses (3)	271			115			947			393
	OCGH non-controlling interest (3)	129,408			119,235			617,191			379,356
	Adjusted net income	$	179,603		$	157,732		$	812,334		$	496,874
	-1	This adjustment adds back the effect of equity-based compensation charges related to unit grants made before the Company’s initial public offering, which is excluded from adjusted net income because it is a non-cash charge that does not affect the Company's financial position.
	-2	Because adjusted net income is a pre-tax measure, this adjustment eliminates the effect of income tax expense.
	-3	Because adjusted net income is calculated at the Operating Group level, this adjustment adds back the effect of items applicable to OCG, its Intermediate Holding Companies or the OCGH non-controlling interest.
	The following tables reconcile the Company’s segment information to the condensed consolidated financial statements:
		As of or for the Three Months Ended September 30, 2013
		Segment			Adjustments			Consolidated
	Management fees (1)	$	185,580		$	(128,794	)	$	56,786
	Incentive income (1)	122,424			(122,424		)	—
	Investment income (1)	53,558			(42,090		)	11,468
	Total expenses (2)	(175,033		)	(39,125		)	(214,158		)
	Interest expense, net (3)	(7,074		)	(10,263		)	(17,337		)
	Other income, net	148			—			148
	Other income of consolidated funds (4)	—			1,253,050			1,253,050
	Income taxes	—			(726		)	(726		)
	Net income attributable to non-controlling redeemable interests in consolidated funds	—			(916,875		)	(916,875		)
	Net income attributable to OCGH non-controlling interest in consolidated subsidiaries	—			(129,408		)	(129,408		)
	Adjusted net income/net income attributable to Oaktree Capital Group, LLC	$	179,603		$	(136,655	)	$	42,948
	Corporate investments, at equity (5)	$	1,100,500		$	(1,009,820	)	$	90,680
	Total assets(6)	$	2,649,360		$	42,051,821		$	44,701,181
	-1	The adjustment represents the elimination of amounts attributable to the consolidated funds.
	-2	The expense adjustment consists of (a) equity-based compensation charges of $6,250 related to unit grants made before the Company’s initial public offering, (b) consolidated fund expenses of $32,604 and (c) expenses incurred by the Intermediate Holding Companies of $271.
	-3	The interest expense adjustment represents the inclusion of interest expense attributable to non-controlling interests of the consolidated funds and the exclusion of segment interest income.
	-4	The adjustment to other income of consolidated funds primarily represents the inclusion of interest, dividend and other investment income attributable to non-controlling interests of the consolidated funds.
	-5	The adjustment to corporate investments is to remove from segment assets the consolidated funds that are treated as equity method investments for segment reporting purposes.
	-6	The total assets adjustment represents the inclusion of investments and other assets of the consolidated funds, net of segment assets eliminated in consolidation, which are primarily corporate investments in funds and incentive income receivable.
		As of or for the Three Months Ended September 30, 2012
	Segment			Adjustments			Consolidated
Management fees (1)	$	182,587		$	(152,001	)	$	30,586
Incentive income (1)	59,174			(57,854		)	1,320
Investment income (1)	62,801			(54,503		)	8,298
Total expenses (2)	(139,084		)	(28,936		)	(168,020		)
Interest expense, net (3)	(7,687		)	(3,102		)	(10,789		)
Other income, net	(59		)	—			(59		)
Other income of consolidated funds (4)	—			2,358,767			2,358,767
Income taxes	—			(5,801		)	(5,801		)
Net income attributable to non-controlling redeemable interests in consolidated funds	—			(2,069,855		)	(2,069,855		)
Net income attributable to OCGH non-controlling interest in consolidated subsidiaries	—			(119,235		)	(119,235		)
Adjusted net income/net income attributable to Oaktree Capital Group, LLC	$	157,732		$	(132,520	)	$	25,212
Corporate investments, at equity (5)	$	1,236,710		$	(1,108,088	)	$	128,622
Total assets (6)	$	2,266,488		$	44,542,839		$	46,809,327
-1	The adjustment represents the elimination of amounts attributable to the consolidated funds.
-2	The expense adjustment consists of (a) equity-based compensation charges of $7,369 related to unit grants made before the Company’s initial public offering, (b) consolidated fund expenses of $21,452 and (c) expenses incurred by the Intermediate Holding Companies of $115.
-3	The interest expense adjustment represents the inclusion of interest expense attributable to non-controlling interests of the consolidated funds and the exclusion of segment interest income.
-4	The adjustment to other income of consolidated funds primarily represents the inclusion of interest, dividend and other investment income attributable to non-controlling interests of the consolidated funds.
-5	The adjustment to corporate investments is to remove from segment assets the consolidated funds that are treated as equity method investments for segment reporting purposes.
-6	The total assets adjustment represents the inclusion of investments and other assets of the consolidated funds, net of segment assets eliminated in consolidation, which are primarily corporate investments in funds and incentive income receivable.
	As of or for the Nine Months Ended September 30, 2013
	Segment			Adjustments			Consolidated
Management fees (1)	$	552,281		$	(402,859	)	$	149,422
Incentive income (1)	787,665			(785,348		)	2,317
Investment income (1)	170,184			(147,584		)	22,600
Total expenses (2)	(676,591		)	(98,612		)	(775,203		)
Interest expense, net (3)	(21,617		)	(21,314		)	(42,931		)
Other income, net	412			—			412
Other income of consolidated funds (4)	—			5,179,866			5,179,866
Income taxes	—			(18,874		)	(18,874		)
Net income attributable to non-controlling redeemable interests in consolidated funds	—			(3,743,327		)	(3,743,327		)
Net income attributable to OCGH non-controlling interest in consolidated subsidiaries	—			(617,191		)	(617,191		)
Adjusted net income/net income attributable to Oaktree Capital Group, LLC	$	812,334		$	(655,243	)	$	157,091
Corporate investments, at equity (5)	$	1,100,500		$	(1,009,820	)	$	90,680
Total assets(6)	$	2,649,360		$	42,051,821		$	44,701,181
-1	The adjustment represents the elimination of amounts attributable to the consolidated funds.
-2	The expense adjustment consists of (a) equity-based compensation charges of $18,231 related to unit grants made before the Company’s initial public offering, (b) consolidated fund expenses of $79,434 and (c) expenses incurred by the Intermediate Holding Companies of $947.
-3	The interest expense adjustment represents the inclusion of interest expense attributable to non-controlling interests of the consolidated funds and the exclusion of segment interest income.
-4	The adjustment to other income of consolidated funds primarily represents the inclusion of interest, dividend and other investment income attributable to non-controlling interests of the consolidated funds.
-5	The adjustment to corporate investments is to remove from segment assets the consolidated funds that are treated as equity method investments for segment reporting purposes.
-6	The total assets adjustment represents the inclusion of investments and other assets of the consolidated funds, net of segment assets eliminated in consolidation, which are primarily corporate investments in funds and incentive income receivable.
	As of or for the Nine Months Ended September 30, 2012
	Segment			Adjustments			Consolidated
Management fees (1)	$	562,692		$	(470,879	)	$	91,813
Incentive income (1)	250,861			(244,493		)	6,368
Investment income (1)	150,382			(132,699		)	17,683
Total expenses (2)	(445,421		)	(97,174		)	(542,595		)
Interest expense, net (3)	(23,914		)	(9,725		)	(33,639		)
Other income, net (4)	2,274			6,260			8,534
Other income of consolidated funds (5)	—			5,795,524			5,795,524
Income taxes	—			(27,493		)	(27,493		)
Net income attributable to non-controlling redeemable interests in consolidated funds	—			(4,868,300		)	(4,868,300		)
Net income attributable to OCGH non-controlling interest in consolidated subsidiaries	—			(379,356		)	(379,356		)
Adjusted net income/net income attributable to Oaktree Capital Group, LLC	$	496,874		$	(428,335	)	$	68,539
Corporate investments, at equity (6)	$	1,236,710		$	(1,108,088	)	$	128,622
Total assets (7)	$	2,266,488		$	44,542,839		$	46,809,327
-1	The adjustment represents the elimination of amounts attributable to the consolidated funds.
-2	The expense adjustment consists of (a) equity-based compensation charges of $27,353 related to unit grants made before the Company’s initial public offering, (b) consolidated fund expenses of $69,428 and (c) expenses incurred by the Intermediate Holding Companies of $393.
-3	The interest expense adjustment represents the inclusion of interest expense attributable to non-controlling interests of the consolidated funds and the exclusion of segment interest income.
-4	The other income, net adjustment represents other income or expenses of OCG or its Intermediate Holding Companies. This amount is attributable to a reduction in the amount of the deferred tax asset under the tax receivable agreement associated with the 2007 Private Offering, which reduced the tax receivable agreement liability payable to OCGH unitholders.
-5	The adjustment to other income of consolidated funds primarily represents the inclusion of interest, dividend and other investment income attributable to non-controlling interests of the consolidated funds.
-6	The adjustment to corporate investments is to remove from segment assets the consolidated funds that are treated as equity method investments for segment reporting purposes.
-7	The total assets adjustment represents the inclusion of investments and other assets of the consolidated funds, net of segment assets eliminated in consolidation, which are primarily corporate investments in funds and incentive income receivable.

SUBSEQUENT_EVENTS

SUBSEQUENT EVENTS	9 Months Ended
	Sep. 30, 2013
Subsequent Events [Abstract]	'
SUBSEQUENT EVENTS	'
	SUBSEQUENT EVENTS
	On November 1, 2013, the Company declared a distribution of $0.74 per Class A unit. This distribution, which is related to the third quarter of 2013, will be paid on November 15, 2013 to Class A unitholders of record as of the close of business on November 13, 2013.

SUMMARY_OF_SIGNIFICANT_ACCOUNT1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Fair Value of Financial Instruments	'
	Fair Value of Financial Instruments
	GAAP establishes a hierarchal 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 prices in markets for which there are few transactions, the prices are not current, little public information exists or prices vary substantially over time or among brokered market makers. Other 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 and other investments where the fair value is based on observable inputs.
	•	Level III – Model-derived 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. The types of investments in Level III include non-publicly traded equity, debt, real estate and derivatives.
	In some instances, 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. The Company accounts for the transfer of assets into or out of each fair-value hierarchy level as of the beginning of the reporting period.
	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 or security being valued by the investment and valuation teams. The valuations are then reviewed by the valuation committee of each investment strategy, which consists of senior members of the investment team. All Level III investment values are ultimately approved by the valuation committees and designated investment professionals, as well as the valuation officer, who is independent of the investment teams and reports directly to the Company's Managing Principal. 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 evaluates changes in fair-value measurements from period to period for reasonableness, considering items such as industry trends, general economic and market conditions, and factors specific to the investment.
Investments, at Fair Value	'
	Investments, at Fair Value
	The consolidated funds are primarily investment companies that reflect their investments, including majority-owned and controlled investments (the “portfolio companies”), at fair value. The Company has retained the specialized investment company accounting guidance under GAAP for the consolidated funds with respect to consolidated investments. Thus, the consolidated investments are reflected on 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. Subsequent valuations will depend on facts and circumstances known as of the valuation date and the application of valuation methodologies further described below under “—Non-publicly Traded Equity and Real Estate Investments.”
	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 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 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 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
	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, 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 values of equity and real estate investments are determined using either a cost , market or income approach. A cost approach is based upon the current cost of reproducing a real estate investment less deterioration and functional and economic obsolescence. A 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 may also 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 period of time elapsed 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 may eventually 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.
Reclassifications	'
	Reclassifications
	Certain amounts reported in the prior period have been reclassified to conform to the current period presentation.
Recent Accounting Developments	'
	Recent Accounting Developments
	In December 2011, the Financial Accounting Standards Board (“FASB”) issued amended guidance requiring enhanced disclosures that will enable users to evaluate the effect or potential effect of netting arrangements on an entity's financial position, including the effect or potential effect of rights of setoff associated with certain financial instruments and derivative instruments. In January 2013, the FASB issued additional guidance to clarify that ordinary receivables and payables are not in the scope of the amended guidance. The amendments were effective for the Company beginning January 1, 2013. The Company adopted this guidance in the first quarter of 2013 and determined that the adoption did not have a material impact on its condensed consolidated financial statements. Please see note 5 for required disclosures.
	In February 2013, the FASB issued guidance on reporting amounts reclassified out of accumulated other comprehensive income (“AOCI”), which requires entities to disclose additional information about reclassification adjustments, including changes in AOCI balances by component and significant items reclassified out of AOCI. The guidance was effective for the Company beginning January 1, 2013 and applied prospectively. The Company adopted this guidance in the first quarter of 2013 and determined that the adoption did not have a material impact on its condensed consolidated financial statements.
	In June 2013, the FASB issued guidance that amended the criteria by which an entity qualifies as an investment company for accounting purposes. The guidance also clarified the characteristics of an investment company and provided measurement and disclosure requirements for an investment company. The amendment is effective for the Company beginning January 1, 2014. The Company does not expect that adoption of this guidance will have a material impact on its condensed consolidated financial statements.

INVESTMENTS_AT_FAIR_VALUE_Tabl

INVESTMENTS, AT FAIR VALUE (Tables)	9 Months Ended
	Sep. 30, 2013
Investments [Abstract]	'
Investments, at Fair Value	'
	Investments held and securities sold short in the consolidated funds are summarized below:
		Fair Value as of						Fair Value as a Percentage of Investments of Consolidated Funds as of
	Investments:	September 30,			December 31,			September 30,			December 31,
		2013			2012			2013			2012
	United States:
	Fixed income securities:
	Consumer discretionary	$	3,754,991		$	5,072,283		9.7	%		13.2	%
	Consumer staples	850,671			697,300			2.2			1.8
	Energy	709,682			565,151			1.8			1.5
	Financials	551,391			1,013,230			1.4			2.6
	Health care	724,472			658,932			1.9			1.7
	Industrials	1,840,898			1,957,259			4.7			5.1
	Information technology	1,244,353			908,662			3.2			2.4
	Materials	1,081,165			826,008			2.8			2.2
	Telecommunication services	332,734			282,101			0.9			0.7
	Utilities	2,062,556			1,717,978			5.3			4.5
	Total fixed income securities (cost: $13,054,005 and $13,320,475 as of September 30, 2013 and December 31, 2012, respectively)	13,152,913			13,698,904			33.9			35.7
	Equity securities:
	Consumer discretionary	2,973,559			3,289,347			7.7			8.6
	Consumer staples	470,065			444,735			1.2			1.2
	Energy	563,676			448,412			1.5			1.2
	Financials	5,636,471			6,001,493			14.5			15.6
	Health care	250,276			134,239			0.6			0.3
	Industrials	1,554,872			1,201,156			4			3.1
	Information technology	243,756			199,003			0.6			0.5
	Materials	1,225,018			1,407,850			3.2			3.7
	Telecommunication services	40,796			15,022			0.1			0
	Utilities	176,216			140,037			0.5			0.4
	Total equity securities (cost: $10,526,283 and $11,637,988 as of September 30, 2013 and December 31, 2012, respectively)	13,134,705			13,281,294			33.9			34.6
		Fair Value as of						Fair Value as a Percentage of Investments of Consolidated Funds as of
	Investments:	September 30,			December 31,			September 30,			December 31,
		2013			2012			2013			2012
	Europe:
	Fixed income securities:
	Consumer discretionary	$	1,509,502		$	1,607,822		3.9	%		4.2	%
	Consumer staples	154,953			486,037			0.4			1.3
	Energy	282,569			272,079			0.7			0.7
	Financials	531,437			627,161			1.4			1.6
	Health care	25,159			19,585			0.1			0
	Industrials	502,857			531,770			1.3			1.4
	Information technology	7,280			5,397			0			0
	Materials	681,813			717,294			1.8			1.9
	Telecommunication services	172,840			190,369			0.4			0.5
	Utilities	18,049			28,561			0			0.1
	Total fixed income securities (cost: $3,085,553 and $4,383,068 as of September 30, 2013 and December 31, 2012, respectively)	3,886,459			4,486,075			10			11.7
	Equity securities:
	Consumer discretionary	167,589			117,485			0.5			0.3
	Consumer staples	747,302			1,336,420			1.9			3.5
	Energy	77,901			91,724			0.2			0.2
	Financials	2,876,742			1,553,598			7.4			4.1
	Health care	12,850			—			0			—
	Industrials	462,977			1,388			1.2			0
	Information technology	1,398			335			0			0
	Materials	246,176			374,169			0.7			1
	Telecommunication services	882			—			0			—
	Total equity securities (cost: $3,749,094 and $2,960,210 as of September 30, 2013 and December 31, 2012, respectively)	4,593,817			3,475,119			11.9			9.1
	Asia and other:
	Fixed income securities:
	Consumer discretionary	124,192			680,273			0.3			1.8
	Consumer staples	19,488			3,615			0.1			0
	Energy	62,885			47,776			0.2			0.1
	Financials	117,585			22,186			0.3			0.1
	Health care	—			1,622			—			0
Industrials	676,076			290,639			1.7			0.8
Information technology	18,648			33,260			0			0.1
Materials	97,568			92,974			0.3			0.2
Telecommunication services	834			1,939			0			0
Utilities	7,188			129,474			0			0.3
Total fixed income securities (cost: $1,099,405 and $1,298,868 as of September 30, 2013 and December 31, 2012, respectively)	1,124,464			1,303,758			2.9			3.4
	Fair Value as of						Fair Value as a Percentage of Investments of Consolidated Funds as of
Investments:	September 30,			December 31,			September 30,			December 31,
	2013			2012			2013			2012
Asia and other:
Equity securities:
Consumer discretionary	$	554,280		$	99,527		1.4	%		0.3	%
Consumer staples	25,462			42,688			0.1			0.1
Energy	251,661			213,490			0.7			0.6
Financials	955,794			973,745			2.5			2.5
Health care	810			71			0			0
Industrials	809,879			613,020			2.1			1.6
Information technology	82,707			75,583			0.2			0.2
Materials	54,050			51,296			0.1			0.1
Telecommunication services	7,934			6,044			0			0
Utilities	129,492			52,012			0.3			0.1
Total equity securities (cost: $2,298,307 and $1,726,145 as of September 30, 2013 and December 31, 2012, respectively)	2,872,069			2,127,476			7.4			5.5
Total fixed income securities	18,163,836			19,488,737			46.8			50.8
Total equity securities	20,600,591			18,883,889			53.2			49.2
Total investments, at fair value	$	38,764,427		$	38,372,626		100	%		100	%
Securities Sold Short:
Securities sold short – equities	$	(120,598	)	$	(126,530	)
Net Gains (Losses) from Investment Activities of Consolidated Funds	'
	The following table summarizes net gains (losses) from investment activities:
		Three Months Ended September 30,
		2013						2012
		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	$	760,923		$	306,542		$	1,028,109			$	948,408
	Total-return, credit-default and interest-rate swaps (1)	(1,235		)	19,637			28,849				2,189
	Foreign currency forward contracts (1)	9,382			(222,589		)	40,148				(135,228		)
	Options and futures (1)	(2,871		)	(5,817		)	199				(6,380		)
	Total	$	766,199		$	97,773		$	1,097,305			$	808,989
		Nine Months Ended September 30,
		2013						2012
		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	$	2,773,547		$	998,935		$	2,754,917			$	1,535,611
	Total-return, credit-default and interest-rate swaps (1)	2,648			44,396			59,313				38,311
	Foreign currency forward contracts (1)	28,934			(38,598		)	103,052				(137,422		)
	Options and futures (1)	(8,681		)	2,762			(12,318		)		(1,904		)
	Total	$	2,796,448		$	1,007,495		$	2,904,964			$	1,434,596
	-1	Please see note 5 for additional information.

FAIR_VALUE_Tables

FAIR VALUE (Tables)	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Valuation of Investments and Other Financial Instruments	'
	The table below summarizes the valuation of investments and other financial instruments of the consolidated funds by fair-value hierarchy levels:
	As of September 30, 2013:	Level I				Level II				Level III				Total
	Corporate debt – bank debt	$	—			$	8,060,810			$	2,288,908			$	10,349,718
	Corporate debt – all other	—				5,152,485				2,661,633				7,814,118
	Equities – common stock	4,689,131				683,956				6,468,956				11,842,043
	Equities – preferred stock	3,888				5,208				862,800				871,896
	Real estate	—				34,340				5,855,710				5,890,050
	Real estate loan portfolio	—				—				1,979,132				1,979,132
	Other	1,888				1,467				14,115				17,470
	Total investments	$	4,694,907			$	13,938,266			$	20,131,254			$	38,764,427
	Securities sold short – equities	$	(120,598	)		$	—			$	—			$	(120,598	)
	Options written (net)	$	—			$	287			$	—			$	287
	Swaps (net)	—				8,635				74,797				83,432
	Forward contracts (net)	—				(132,386		)		—				(132,386		)
	Futures (net)	844				—				—				844
	As of December 31, 2012:	Level I				Level II				Level III				Total
	Corporate debt – bank debt	$	—			$	7,412,691			$	2,253,476			$	9,666,167
	Corporate debt – all other	—				6,663,519				3,159,051				9,822,570
	Equities – common stock	3,362,742				1,055,465				8,101,051				12,519,258
	Equities – preferred stock	2,520				2,133				650,096				654,749
	Real estate	—				—				3,946,142				3,946,142
	Real estate loan portfolio	—				—				1,737,822				1,737,822
	Other	1,933				8,438				15,547				25,918
	Total investments	$	3,367,195			$	15,142,246			$	19,863,185			$	38,372,626
	Securities sold short – equities	$	(126,530	)		$	—			$	—			$	(126,530	)
	Options written (net)	$	—			$	5,520			$	—			$	5,520
	Swaps (net)	—				(5,539		)		44,705				39,166
	Forward contracts (net)	—				(93,863		)		—				(93,863		)
	Futures (net)	90				—				—				90
Summary of Changes in Fair Value of Level III Investments	'
	The following tables set forth a summary of changes in the fair value of the Level III investments:
			Corporate Debt – Bank Debt				Corporate Debt – All Other				Equities – Common Stock				Equities – Preferred Stock			Real Estate			Real Estate Loan Portfolio			Swaps		Other			Total
	Three Months Ended September 30, 2013:
	Beginning balance		$	1,711,680			$	2,535,280			$	7,373,118			$	663,523		$	5,199,534		$	1,989,515		$	55,817	$	14,516		$	19,542,983
	Transfers into Level III		276,696				48,124				105,583				118,496			—			—			—		—			548,899
	Transfers out of Level III		(72,043		)		(14,544		)		(654,361		)		(9,991		)	—			—			—		—			(750,939		)
	Purchases		533,073				240,959				334,417				105,921			624,020			253,669			—		—			2,092,059
	Sales		(280,820		)		(254,764		)		(860,649		)		(723		)	(148,528		)	(357,451		)	—		—			(1,902,935		)
	Realized gains (losses), net		19,096				65,722				397,272				164			24,190			9,781			—		—			516,225
	Unrealized appreciation (depreciation), net		101,226				40,856				(226,424		)		(14,590		)	156,494			83,618			18,980		(401		)	159,759
	Ending balance		$	2,288,908			$	2,661,633			$	6,468,956			$	862,800		$	5,855,710		$	1,979,132		$	74,797	$	14,115		$	20,206,051
	Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period		$	102,940			$	22,270			$	(14,316	)		$	30,688		$	138,039		$	83,618		$	18,973	$	(344	)	$	381,868
	Three Months Ended September 30, 2012:
	Beginning balance		$	2,424,016			$	3,054,677			$	7,180,826			$	1,046,978		$	3,132,225		$	712,145		$	—	$	19,965		$	17,570,832
	Transfers into Level III		1,403				234,196				102,504				1,164			—			—			—		—			339,267
	Transfers out of Level III		(319,348		)		(389,549		)		(11,424		)		—			—			—			—		—			(720,321		)
	Purchases		652,231				333,320				23,065				51,479			352,462			1,008,622			—		—			2,421,179
	Sales		(197,648		)		(89,188		)		(118,584		)		(277,090		)	(182,159		)	(528,500		)	—		(7,835		)	(1,401,004		)
	Realized gains (losses), net		25,762				7,536				41,470				273,589			(7,402		)	8,256			—		5,516			354,727
	Unrealized appreciation (depreciation), net		27,074				24,186				203,827				(255,308		)	194,118			25,410			—		(2,608		)	216,699
	Ending balance		$	2,613,490			$	3,175,178			$	7,421,684			$	840,812		$	3,489,244		$	1,225,933		$	—	$	15,038		$	18,781,379
	Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period		$	1,492			$	24,723			$	267,576			$	26,859		$	207,526		$	79,306		$	—	$	(1,214	)	$	606,268
			Corporate Debt – Bank Debt				Corporate Debt – All Other				Equities – Common Stock				Equities – Preferred Stock			Real Estate			Real Estate Loan Portfolio			Swaps		Other			Total
	Nine Months Ended September 30, 2013:
	Beginning balance		$	2,253,476			$	3,159,051			$	8,101,051			$	650,096		$	3,946,142		$	1,737,822		$	44,705	$	15,547		$	19,907,890
	Transfers into Level III		440,605				59,544				698,735				385,099			15,055			—			—		—			1,599,038
	Transfers out of Level III		(669,172		)		(215,738		)		(1,059,337		)		(9,991		)	—			—			—		—			(1,954,238		)
	Purchases		827,924				358,510				685,588				203,315			1,556,156			849,342			—		—			4,480,835
	Sales		(708,296		)		(898,672		)		(2,277,253		)		(312,669		)	(497,633		)	(810,873		)	—		—			(5,505,396		)
	Realized gains (losses), net		18,523				157,027				922,320				55,985			169,388			27,713			—		—			1,350,956
	Unrealized appreciation (depreciation), net		125,848				41,911				(602,148		)		(109,035		)	666,602			175,128			30,092		(1,432		)	326,966
	Ending balance		$	2,288,908			$	2,661,633			$	6,468,956			$	862,800		$	5,855,710		$	1,979,132		$	74,797	$	14,115		$	20,206,051
	Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period		$	90,534			$	101,485			$	119,749			$	(50,371	)	$	616,914		$	175,128		$	30,092	$	(1,376	)	$	1,082,155
	Nine Months Ended September 30, 2012:
	Beginning balance		$	1,978,637			$	3,155,241			$	6,164,025			$	1,090,107		$	2,786,862		$	479,690		$	—	$	18,824		$	15,673,386
	Transfers into Level III		377,015				606,212				567,143				8,151			17,275			—			—		—			1,575,796
	Transfers out of Level III		(538,993		)		(590,324		)		(371,106		)		(100,064		)	(5,353		)	—			—		—			(1,605,840		)
	Purchases		1,355,860				745,392				637,685				95,040			1,072,682			1,236,118			—		—			5,142,777
	Sales		(561,188		)		(953,083		)		(189,821		)		(280,947		)	(786,375		)	(592,355		)	—		(7,835		)	(3,371,604		)
	Realized gains (losses), net		35,655				107,829				(19,541		)		270,390			236,762			23,174			—		5,516			659,785
	Unrealized appreciation (depreciation), net		(33,496		)		103,911				633,299				(241,865		)	167,391			79,306			—		(1,467		)	707,079
	Ending balance		$	2,613,490			$	3,175,178			$	7,421,684			$	840,812		$	3,489,244		$	1,225,933		$	—	$	15,038		$	18,781,379
	Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period		$	(8,054	)		$	156,816			$	552,674			$	41,154		$	364,835		$	79,306		$	—	$	(73	)	$	1,186,658
Fair Value Inputs, Assets, Quantitative Information	'
	The following table sets forth a summary of the valuation technique and quantitative information utilized in determining the fair value of the Company's Level III investments as of September 30, 2013:
	Investment Type		Fair Value				Valuation Technique		Significant Unobservable Inputs (9)(10)(11)
	Credit-oriented investments:
			$	1,245,372			Discounted cash flow (1)		Discount rate
									(range: 8% - 19%)
			1,264,193				Market approach (comparable companies) (2)		Earnings multiple (3)
									(range: 4x - 9x)
			204,597				Market approach (value of underlying assets) (2)(4)		Underlying asset multiple
									(range: 0.9x - 1.1x)
			961,333				Recent transaction price (5)		Not applicable
			364,961				Discounted cash flow (1) / Sales approach (8)		Discount rate
									(range: 13% - 33%)
									Market transactions
			984,882				Recent market information (6)		Quoted prices / discount (discount not applicable)
	Equity investments:
			5,126,645				Market approach (comparable companies) (2)		Earnings multiple (3)
									(range: 3x - 13x)
			891,062				Market approach (value of underlying assets) (2)(4)		Underlying asset multiple
									(range: 1x - 1.4x)
			1,164,874				Recent transaction price (5)		Not applicable
			111,323				Discounted cash flow (1)		Discount rate
									(range: 11% - 13%)
			37,852				Recent market information (6)		Quoted prices / discount (discount not applicable)
	Real estate-oriented
	investments:
			1,846,201				Discounted cash flow (1)(7)		Discount rate
									(range: 8% - 40%)
									Terminal capitalization rate
									(range: 6% - 15%)
									Direct capitalization rate
									(range: 7% - 9%)
									Net operating income growth rate
									(range: 1% - 31%)
									Absorption rate
									(range: 16% - 33%)
			1,013,953				Market approach (comparable companies) (2)		Earnings multiple (3)
									(range: 6x - 12x)
			397,321				Market approach (value of underlying assets) (2)(4)		Underlying asset multiple
									(range: 1.1x - 1.3x)
			962,463				Recent transaction price (5)		Not applicable
			472,869				Sales approach (8)		Market transactions
			1,162,903				Recent market information (6)		Quoted prices / discount (discount range: 0% - 6%)
	Real estate loan portfolios:
			496,282				Recent transaction price (5)		Not applicable
			1,482,850				Discounted cash flow (1)(7)		Discount rate
									(range: 12% - 30%)
	Other		14,115
	Total Level III investments		$	20,206,051
	-1	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, certain real estate-oriented investments and certain real estate loan portfolios.
	-2	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.
	-3	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.
	-4	A market approach using the value of underlying assets utilizes a multiple, based on comparable companies, of underlying assets or the net book value of the portfolio company. The Company typically obtains the value of underlying assets from the underlying portfolio company's financial statements or from pricing vendors. The Company may value the underlying assets by using prices and other relevant information from market transactions involving comparable assets.
	-5	Certain investments are valued based on recent transactions, generally defined as investments purchased or sold within six months of the valuation date, adjusted when appropriate based on changes in significant unobservable inputs, valuations of comparable companies and other similar transactions. The fair value may also be based on a pending transaction expected to close after the valuation date.
	-6	Certain investments are valued using quoted prices 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. Quoted prices include exchange-listed prices and prices obtained from brokers or pricing vendors. Prices obtained from brokers or pricing vendors are evaluated based on trading activity of the subject or similar securities or comparable-yield analysis.
	-7	The discounted cash flow model for certain real estate-oriented investments and certain real estate loan portfolios contains a sell-out analysis. In these cases, the discounted cash flow is based on the expected timing and prices of sales of the underlying properties. The Company's determination of the sales prices of these properties typically includes consideration of prices and other relevant information from market transactions involving comparable properties.
	-8	The sales approach uses prices and other relevant information generated by market transactions involving comparable assets. The significant unobservable inputs used in the sales approach generally include adjustments to transactions involving comparable assets or properties, adjustments to external or internal appraised values, and the Company's assumptions regarding market trends or other relevant factors.
	-9	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 certain real estate loan portfolios. An increase (decrease) in the discount rate would result in a lower (higher) fair-value measurement.
	-10	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.
	-11	The significant unobservable inputs used in the fair-value measurement of real estate investments utilizing a discounted cash flow analysis can include one or more of the following: discount rate, terminal capitalization rate, direct capitalization rate, net operating income growth rate or absorption rate. An increase (decrease) in a discount rate, terminal capitalization rate or direct capitalization rate would result in a lower (higher) fair-value measurement. An increase (decrease) in a net operating income growth rate or absorption rate would result in a higher (lower) fair-value measurement. Generally, a change in a net operating income growth rate or absorption rate would be accompanied by a directionally similar change in the discount rate.

HEDGES_AND_OTHER_DERIVATIVE_FI1

HEDGES AND OTHER DERIVATIVE FINANCIAL INSTRUMENTS (Tables)	9 Months Ended
	Sep. 30, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Summary of Net Forward Currency Sell Contracts Under Freestanding Derivatives	'
	The fair value of forward currency sell contracts, which are recorded within the same caption as the underlying hedged items in the condensed consolidated statements of financial condition, consisted of the following:
	As of September 30, 2013:	Contract			Contract				Market				Net Unrealized
		Amount in			Amount in				Value in				Appreciation
		Local Currency			U.S. Dollars				U.S. Dollars				(Depreciation)
	Euro, expiring 10/4/13-7/31/14	110,360			$	144,894			$	149,326			$	(4,432	)
	USD (buy GBP), expiring 10/4/13-6/27/14	59,511			59,511				56,395				3,116
	GBP, expiring 4/30/14	3,000			4,643				4,848				(205		)
	Japanese Yen, expiring 11/27/13-1/30/15	5,468,700			55,955				55,835				120
	Total				$	265,003			$	266,404			$	(1,401	)
	As of December 31, 2012:
	Euro, expiring 1/7/13-10/31/13	93,500			$	104,155			$	105,997			$	(1,842	)
	Japanese Yen, expiring 2/28/13-5/31/13	1,330,000			16,418				15,379				1,039
	Total				$	120,573			$	121,376			$	(803	)
Schedule of Fair Values of Total Return Swaps [Table Text Block]	'
	The fair value of the TRS contract, which is included in other assets in the condensed consolidated statements of financial condition, consisted of the following:
	As of September 30, 2013	Notional				Fair Value
	Total-return swap	$	135,561			$	132
Summary of Impact of Freestanding Derivative Instruments on Condensed Consolidated Statement of Operations	'
	ealized and unrealized gains and losses arising from freestanding derivative instruments were recorded on the condensed consolidated statements of operations as follows:
		For the Three Months								For the Nine Months
		Ended September 30,								Ended September 30,
	Foreign Currency Forward Contracts:	2013				2012				2013				2012
	General and administrative expenses (1)	$	(3,531	)		$	(1,483	)		$	1,318			$	1,543
	Total-return Swap:
	Other income (expense), net	$	132			$	—			$	132			$	—
	-1	To the extent that the Company's freestanding derivatives are utilized to hedge its 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 of expenses) reflected in consolidated general and administrative expenses.
Impact of Derivative Instruments Held by Consolidated Funds on Condensed Consolidated Statements of Operations	'
	The impact of derivative instruments held by the consolidated funds on the condensed consolidated statements of operations for the three and nine months ended September 30, 2013 and 2012 was as follows:
		Three Months Ended September 30,
		2013								2012
		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
	Total-return, credit-default and interest-rate swaps	$	(1,235	)		$	19,637			$	28,849			$	2,189
	Foreign currency forward contracts	9,382				(222,589		)		40,148				(135,228		)
	Options and futures	(2,871		)		(5,817		)		199				(6,380		)
	Total	$	5,276			$	(208,769	)		$	69,196			$	(139,419	)
		Nine Months Ended September 30,
		2013								2012
		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
	Total-return, credit-default and interest-rate swaps	$	2,648			$	44,396			$	59,313			$	38,311
	Foreign currency forward contracts	28,934				(38,598		)		103,052				(137,422		)
	Options and futures	(8,681		)		2,762				(12,318		)		(1,904		)
	Total	$	22,901			$	8,560			$	150,047			$	(101,015	)
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	'
	The table below sets forth the rights of setoff and related arrangements associated with the Company's derivative instruments:
		Gross Amounts of Assets (Liabilities)				Gross Amounts Offset in Assets (Liabilities)				Net Amounts of Assets (Liabilities) Presented				Gross Amounts Not Offset in Statements of Financial Condition						Net Amount
	As of September 30, 2013													Derivative Assets (Liabilities)			Cash Collateral Received (Pledged)
	Derivative Assets:
	Foreign currency forward contracts	$	4,009			$	4,009			$	—			$	—		$	—		$	—
	Total-return swaps	132				—				132				—			—			132
	Subtotal	4,141				4,009				132				—			—			132
	Derivative assets of consolidated funds:
	Foreign currency forward contracts	16,989				52				16,937				13,388			—			3,549
	Total-return, credit-default and interest-rate swaps	83,191				—				83,191				91			—			83,100
	Options and futures	4,603				—				4,603				—			—			4,603
	Swaptions	2,126				—				2,126				—			—			2,126
	Subtotal	106,909				52				106,857				13,479			—			93,378
	Total	$	111,050			$	4,061			$	106,989			$	13,479		$	—		$	93,510
	Derivative Liabilities:
	Foreign currency forward contracts	$	(5,410	)		$	(4,009	)		$	(1,401	)		$	(6	)	$	—		$	(1,395	)
	Interest-rate swaps	(4,900		)		—				(4,900		)		6			—			(4,906		)
	Subtotal	(10,310		)		(4,009		)		(6,301		)		—			—			(6,301		)
	Derivative liabilities of consolidated funds:
	Foreign currency forward contracts	(149,375		)		(52		)		(149,323		)		(13,388		)	—			(135,935		)
	Total-return, credit-default and interest-rate swaps	(1,885		)		—				(1,885		)		(91		)	—			(1,794		)
	Options and futures	(3,472		)		—				(3,472		)		—			—			(3,472		)
	Subtotal	(154,732		)		(52		)		(154,680		)		(13,479		)	—			(141,201		)
	Total	$	(165,042	)		$	(4,061	)		$	(160,981	)		$	(13,479	)	$	—		$	(147,502	)
		Gross Amounts of Assets (Liabilities)				Gross Amounts Offset in Assets (Liabilities)				Net Amounts of Assets (Liabilities) Presented				Gross Amounts Not Offset in Statements of Financial Condition						Net Amount
	As of December 31, 2012													Derivative Assets (Liabilities)			Cash Collateral Received (Pledged)
	Derivative Assets:
	Foreign currency forward contracts	$	1,558			$	1,558			$	—			$	(549	)	$	—		$	549
	Derivative assets of consolidated funds:
	Foreign currency forward contracts	52,663				—				52,663				34,139			—			18,524
	Total-return, credit-default and interest-rate swaps	48,727				—				48,727				312			340			48,075
	Options and futures	6,170				—				6,170				—			—			6,170
	Subtotal	107,560				—				107,560				34,451			340			72,769
	Total	$	109,118			$	1,558			$	107,560			$	33,902		$	340		$	73,318
	Derivative Liabilities:
	Foreign currency forward contracts	$	(2,361	)		$	(1,558	)		$	(803	)		$	654		$	—		$	(1,457	)
	Interest-rate swaps	(7,900		)		—				(7,900		)		(105		)	—			(7,795		)
	Subtotal	(10,261		)		(1,558		)		(8,703		)		549			—			(9,252		)
	Derivative liabilities of consolidated funds:
	Foreign currency forward contracts	(146,526		)		—				(146,526		)		(34,139		)	(632		)	(111,755		)
	Total-return, credit-default and interest-rate swaps	(9,561		)		—				(9,561		)		(312		)	(1,828		)	(7,421		)
	Options and futures	(560		)		—				(560		)		—			(47		)	(513		)
	Subtotal	(156,647		)		—				(156,647		)		(34,451		)	(2,507		)	(119,689		)
	Total	$	(166,908	)		$	(1,558	)		$	(165,350	)		$	(33,902	)	$	(2,507	)	$	(128,941	)

DEBT_OBLIGATIONS_AND_CREDIT_FA1

DEBT OBLIGATIONS AND CREDIT FACILITIES (Tables)	9 Months Ended
	Sep. 30, 2013
Debt Disclosure [Abstract]	'
Debt Obligations	'
	The Company had the following debt obligations as of September 30, 2013 and December 31, 2012:
		As of
		September 30,		December 31,
		2013		2012
	$75,000, 5.03%, issued in June 2004, payable in seven equal annual installments starting June 14, 2008	$	10,714	$	21,429
	$50,000, 6.09%, issued in June 2006, payable on June 6, 2016	50,000		50,000
	$50,000, 5.82%, issued in November 2006, payable on November 8, 2016	50,000		50,000
	$250,000, 6.75%, issued in November 2009, payable on December 2, 2019	250,000		250,000
	$250,000, rate as described below, term loan issued in December 2012, payable 2.5% per quarter through September 2017, final $125,000 payment on December 21, 2017	225,000		243,750
	Total remaining principal	$	585,714	$	615,179
Future Principal Payments of Debt Obligations	'
	Future principal payments of debt obligations as of September 30, 2013 were as follows:
	Remainder of 2013	$	6,250
	2014	35,714
	2015	25,000
	2016	125,000
	2017	143,750
	Thereafter	250,000
	Total	$	585,714
Revolving Bank Credit Facilities and Term Loans Outstanding of Consolidated Funds	'
	The consolidated funds had the following revolving credit facilities and term loans outstanding:
	Credit agreement	Outstanding Amount as of				Facility Capacity		LIBOR		Maturity	Commitment Fee Rate		L/C Fee (2)
		September 30,		December 31,				Margin (1)
		2013		2012
	Credit facility (3)(4)	$	289,000	$	63,000	$	750,000	1.25	%	8/28/15	N/A		N/A
	Senior variable rate notes (4)	249,500		249,500		$	249,500	1.55	%	10/20/22	N/A		N/A
	Senior variable rate notes (4)	498,814		—		$	500,000	1.2	%	4/20/23	N/A		N/A
	Senior variable rate notes (4)	402,364		—		$	402,500	1.2	%	7/20/23	N/A		N/A
	Senior variable rate notes (4)	64,500		—		$	64,500	1.65	%	7/20/23	N/A		N/A
	Revolving credit facility	300,000		—		$	500,000	1.6	%	6/26/15	0.25	%	N/A
	Multi-currency term loan (5)	—		49,158		$	275,000	3	%	N/A	N/A		N/A
	Revolving credit facility	—		38,000		$	180,000	1.75	%	12/15/14	0.35	%	N/A
	Revolving credit facility	125,000		8,625		$	125,000	1.75	%	5/20/14	0.35	%	N/A
	Revolving credit facility	9,000		19,400		$	55,000	2	%	12/15/13	0.35	%	2	%
	Revolving credit facility	—		—		$	40,000	1.5	%	12/11/13	0.3	%	1.5	%
	Euro-denominated revolving credit facility	—		63,942		€	100,000	1.75	%	12/17/15	0.3	%	2	%
	Revolving credit facility	—		—		$	10,000	2.25	%	9/1/14	0.38	%	N/A
	Revolving credit facility	90,000		—		$	350,000	1.65	%	3/22/15	0.25	%	N/A
		$	2,028,178	$	491,625
	-1	The facilities bear interest, at the borrower's option, at (a) an annual rate of LIBOR plus the applicable margin or (b) an alternate base rate, as defined in the respective credit agreement.
	-2	Certain facilities allow for the issuance of letters of credit at an applicable annual fee. As of September 30, 2013 and December 31, 2012, outstanding standby letters of credit totaled $63,545 and $76,975, respectively.
	-3	Libor margin equals 1.25% through August 28, 2013 and 2.50% thereafter.
	-4	The credit facility is collateralized by the portfolio investments and cash and cash-equivalents of the fund.
	-5	The loan was fully repaid and terminated on September 20, 2013.

NONCONTROLLING_REDEEMABLE_INTE1

NON-CONTROLLING REDEEMABLE INTERESTS IN CONSOLIDATED FUNDS (Tables)	9 Months Ended
	Sep. 30, 2013
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:
		Nine Months Ended September 30,
		2013			2012
	Beginning balance	$	39,670,831		$	41,048,607
	Contributions	4,613,588			4,948,480
	Distributions	(10,033,373		)	(7,907,434		)
	Net income	3,743,327			4,868,300
	Change in distributions payable	234,409			125,741
	Change in accrued or deferred contributions	3,525			41,000
	Foreign currency translation and other	97,605			(21,152		)
	Ending balance	$	38,329,912		$	43,103,542

UNITHOLDERS_CAPITAL_Tables

UNITHOLDERS' CAPITAL (Tables)	9 Months Ended
	Sep. 30, 2013
Stockholders' Equity Note [Abstract]	'
Summary of Net Income (Loss)	'
	The following table sets forth a summary of the net income attributable to the OCGH non-controlling interest and to the Class A unitholders:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Weighted average Oaktree Operating Group units outstanding (in thousands):
	OCGH non-controlling interest	112,791			120,283			117,103			123,070
	Class A unitholders	38,239			30,181			33,845			27,494
	Total weighted average units outstanding	151,030			150,464			150,948			150,564
	Oaktree Operating Group net income:
	Net income attributable to OCGH non-controlling interest	$	129,408		$	119,235		$	617,191		$	379,356
	Net income attributable to Class A unitholders	43,875			29,920			172,631			84,444
	Oaktree Operating Group net income	$	173,283		$	149,155		$	789,822		$	463,800
	Net income attributable to Oaktree Capital Group, LLC:
	Oaktree Operating Group net income attributable to Class A unitholders	$	43,875		$	29,920		$	172,631		$	84,444
	Non-Operating Group other income	—			—			—			6,260
	Non-Operating Group expenses	(271		)	(115		)	(947		)	(393		)
	Income tax expense of Intermediate Holding Companies	(656		)	(4,593		)	(14,593		)	(21,772		)
	Net income attributable to Oaktree Capital Group, LLC	$	42,948		$	25,212		$	157,091		$	68,539
Changes in Company Ownership Interest	'
	Set forth below are the effects of changes in the Company’s ownership interest in the Oaktree Operating Group:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Net income attributable to Oaktree Capital Group, LLC	$	42,948		$	25,212		$	157,091		$	68,539
	Equity reallocation between controlling and non-controlling interests	(160		)	(74		)	76,685			69,101
	Change from net income attributable to Oaktree Capital Group, LLC and transfers from (to) non-controlling interest	$	42,788		$	25,138		$	233,776		$	137,640

EARNINGS_PER_UNIT_Tables

EARNINGS PER UNIT (Tables)	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Computations of Net Income (Loss) Per Unit	'
	The computations of net income per Class A unit are set forth below:
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Weighted average units outstanding:	(in thousands, except per unit amounts)
	Class A units outstanding	38,239		30,181		33,845		27,494
	OCGH units exchangeable into Class A units (1)	—		—		—		—
	Total weighted average units outstanding	38,239		30,181		33,845		27,494
	Net income per Class A unit:
	Net income	$	42,948	$	25,212	$	157,091	$	68,539
	Weighted average units outstanding	38,239		30,181		33,845		27,494
	Basic and diluted net income per Class A unit	$	1.12	$	0.84	$	4.64	$	2.49
	-1	Vested OCGH units are potentially exchangeable on a one-for-one basis into Class A units. As of September 30, 2013, there were 112,821,276 OCGH units outstanding, accordingly, the Company may cumulatively issue up to 112,821,276 additional Class A units through August 1, 2023 if all such units were exchanged. For all periods presented, OCGH units have been excluded from the calculation of diluted earnings per unit because the exchange of these units would proportionally increase Oaktree Capital Group, LLC’s interest in the Oaktree Operating Group and could have an anti-dilutive effect on earnings per unit to the extent that tax-related or other expenses were incurred by the Company as a result of the exchange.

EQUITYBASED_COMPENSATION_Table

EQUITY-BASED COMPENSATION (Tables)	9 Months Ended
	Sep. 30, 2013
Share-based Compensation [Abstract]	'
Summary of Unvested Equity-Based Awards and Changes	'
	A summary of the status of the Company’s unvested equity-based awards as of September 30, 2013 and a summary of changes for the nine months then ended are presented below (actual dollars per unit):
		Class A Units				OCGH Units
		Number of Units		Weighted Average Grant Date Fair Value		Number of Units		Weighted Average Grant Date Fair Value
	Balance, December 31, 2012	11,669		$	41.91	4,902,348		$	28.17
	Granted	8,508		47.83		763,000		34.6
	Vested	(3,069	)	39.4		(1,103,569	)	23.8
	Forfeited	—		—		(43,600	)	30.05
	Balance, September 30, 2013	17,108		$	45.3	4,518,179		$	30.3
Schedule of Unvested Units Expected to Vest	'
	As of September 30, 2013, unvested units were expected to vest as follows:
		Number of		Weighted
		Units		Average
				Remaining
				Service Term
				(Years)
	Class A units	17,108		3.7
	OCGH units	4,518,179		5.2

RELATEDPARTY_TRANSACTIONS_Tabl

RELATED-PARTY TRANSACTIONS (Tables)	9 Months Ended
	Sep. 30, 2013
Related Party Transactions [Abstract]	'
Amounts Due from and Due to Affiliates	'
	Amounts due from and to affiliates were comprised of the following:
		As of
		September 30,		December 31,
		2013		2012
	Due from affiliates:
	Loans	$	41,450	$	38,091
	Amounts due from non-consolidated funds	868		661
	Payments made on behalf of non-consolidated entities	3,229		3,444
	Non-interest bearing advances made to certain non-controlling interest holders and employees	3,529		2,393
	Total due from affiliates	$	49,076	$	44,589
	Due to affiliates:
	Due to OCGH unitholders in connection with the tax receivable agreement (please see note 11)	$	249,200	$	134,953
	Amounts due to principals, certain non-controlling interest holders and employees	1,090		1,212
	Total due to affiliates	$	250,290	$	136,165

SEGMENT_REPORTING_Tables

SEGMENT REPORTING (Tables)	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]	'
Adjusted Net Income	'
	ANI was as follows:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Revenues:
	Management fees	$	185,580		$	182,587		$	552,281		$	562,692
	Incentive income	122,424			59,174			787,665			250,861
	Investment income	53,558			62,801			170,184			150,382
	Total revenues	361,562			304,562			1,510,130			963,935
	Expenses:
	Compensation and benefits	(95,561		)	(83,080		)	(279,344		)	(247,787		)
	Equity-based compensation	(1,070		)	(128		)	(2,646		)	(128		)
	Incentive income compensation	(49,222		)	(29,546		)	(308,446		)	(118,268		)
	General and administrative	(27,389		)	(24,429		)	(80,889		)	(73,665		)
	Depreciation and amortization	(1,791		)	(1,901		)	(5,266		)	(5,573		)
	Total expenses	(175,033		)	(139,084		)	(676,591		)	(445,421		)
	Adjusted net income before interest and other income (expense)	186,529			165,478			833,539			518,514
	Interest expense, net of interest income (1)	(7,074		)	(7,687		)	(21,617		)	(23,914		)
	Other income (expense), net	148			(59		)	412			2,274
	Adjusted net income	$	179,603		$	157,732		$	812,334		$	496,874
	-1	Interest income was $0.9 million and $0.8 million for the three months ended September 30, 2013 and 2012, respectively, and $2.4 million and $1.9 million for the nine months ended September 30, 2013 and 2012, respectively.
Reconciliation of Net Income (Loss) Attributable to Oaktree Capital Group, LLC to Adjusted Net Income	'
	A reconciliation of net income attributable to Oaktree Capital Group, LLC to adjusted net income of the investment management segment is presented below.
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Net income attributable to Oaktree Capital Group, LLC	$	42,948		$	25,212		$	157,091		$	68,539
	Equity-based compensation (1)	6,250			7,369			18,231			27,353
	Income taxes (2)	726			5,801			18,874			27,493
	Non-Operating Group other income (3)	—			—			—			(6,260		)
	Non-Operating Group expenses (3)	271			115			947			393
	OCGH non-controlling interest (3)	129,408			119,235			617,191			379,356
	Adjusted net income	$	179,603		$	157,732		$	812,334		$	496,874
	-1	This adjustment adds back the effect of equity-based compensation charges related to unit grants made before the Company’s initial public offering, which is excluded from adjusted net income because it is a non-cash charge that does not affect the Company's financial position.
	-2	Because adjusted net income is a pre-tax measure, this adjustment eliminates the effect of income tax expense.
	-3	Because adjusted net income is calculated at the Operating Group level, this adjustment adds back the effect of items applicable to OCG, its Intermediate Holding Companies or the OCGH non-controlling interest.
Schedule of Reconciliation of Total Segments to Income Loss Attributable to Oaktree Capital Group, LLC and Total Assets	'
	The following tables reconcile the Company’s segment information to the condensed consolidated financial statements:
		As of or for the Three Months Ended September 30, 2013
		Segment			Adjustments			Consolidated
	Management fees (1)	$	185,580		$	(128,794	)	$	56,786
	Incentive income (1)	122,424			(122,424		)	—
	Investment income (1)	53,558			(42,090		)	11,468
	Total expenses (2)	(175,033		)	(39,125		)	(214,158		)
	Interest expense, net (3)	(7,074		)	(10,263		)	(17,337		)
	Other income, net	148			—			148
	Other income of consolidated funds (4)	—			1,253,050			1,253,050
	Income taxes	—			(726		)	(726		)
	Net income attributable to non-controlling redeemable interests in consolidated funds	—			(916,875		)	(916,875		)
	Net income attributable to OCGH non-controlling interest in consolidated subsidiaries	—			(129,408		)	(129,408		)
	Adjusted net income/net income attributable to Oaktree Capital Group, LLC	$	179,603		$	(136,655	)	$	42,948
	Corporate investments, at equity (5)	$	1,100,500		$	(1,009,820	)	$	90,680
	Total assets(6)	$	2,649,360		$	42,051,821		$	44,701,181
	-1	The adjustment represents the elimination of amounts attributable to the consolidated funds.
	-2	The expense adjustment consists of (a) equity-based compensation charges of $6,250 related to unit grants made before the Company’s initial public offering, (b) consolidated fund expenses of $32,604 and (c) expenses incurred by the Intermediate Holding Companies of $271.
	-3	The interest expense adjustment represents the inclusion of interest expense attributable to non-controlling interests of the consolidated funds and the exclusion of segment interest income.
	-4	The adjustment to other income of consolidated funds primarily represents the inclusion of interest, dividend and other investment income attributable to non-controlling interests of the consolidated funds.
	-5	The adjustment to corporate investments is to remove from segment assets the consolidated funds that are treated as equity method investments for segment reporting purposes.
	-6	The total assets adjustment represents the inclusion of investments and other assets of the consolidated funds, net of segment assets eliminated in consolidation, which are primarily corporate investments in funds and incentive income receivable.
		As of or for the Three Months Ended September 30, 2012
		Segment			Adjustments			Consolidated
	Management fees (1)	$	182,587		$	(152,001	)	$	30,586
	Incentive income (1)	59,174			(57,854		)	1,320
	Investment income (1)	62,801			(54,503		)	8,298
	Total expenses (2)	(139,084		)	(28,936		)	(168,020		)
	Interest expense, net (3)	(7,687		)	(3,102		)	(10,789		)
	Other income, net	(59		)	—			(59		)
	Other income of consolidated funds (4)	—			2,358,767			2,358,767
	Income taxes	—			(5,801		)	(5,801		)
	Net income attributable to non-controlling redeemable interests in consolidated funds	—			(2,069,855		)	(2,069,855		)
	Net income attributable to OCGH non-controlling interest in consolidated subsidiaries	—			(119,235		)	(119,235		)
	Adjusted net income/net income attributable to Oaktree Capital Group, LLC	$	157,732		$	(132,520	)	$	25,212
	Corporate investments, at equity (5)	$	1,236,710		$	(1,108,088	)	$	128,622
	Total assets (6)	$	2,266,488		$	44,542,839		$	46,809,327
	-1	The adjustment represents the elimination of amounts attributable to the consolidated funds.
	-2	The expense adjustment consists of (a) equity-based compensation charges of $7,369 related to unit grants made before the Company’s initial public offering, (b) consolidated fund expenses of $21,452 and (c) expenses incurred by the Intermediate Holding Companies of $115.
	-3	The interest expense adjustment represents the inclusion of interest expense attributable to non-controlling interests of the consolidated funds and the exclusion of segment interest income.
	-4	The adjustment to other income of consolidated funds primarily represents the inclusion of interest, dividend and other investment income attributable to non-controlling interests of the consolidated funds.
	-5	The adjustment to corporate investments is to remove from segment assets the consolidated funds that are treated as equity method investments for segment reporting purposes.
	-6	The total assets adjustment represents the inclusion of investments and other assets of the consolidated funds, net of segment assets eliminated in consolidation, which are primarily corporate investments in funds and incentive income receivable.
		As of or for the Nine Months Ended September 30, 2013
		Segment			Adjustments			Consolidated
	Management fees (1)	$	552,281		$	(402,859	)	$	149,422
	Incentive income (1)	787,665			(785,348		)	2,317
	Investment income (1)	170,184			(147,584		)	22,600
	Total expenses (2)	(676,591		)	(98,612		)	(775,203		)
	Interest expense, net (3)	(21,617		)	(21,314		)	(42,931		)
	Other income, net	412			—			412
	Other income of consolidated funds (4)	—			5,179,866			5,179,866
	Income taxes	—			(18,874		)	(18,874		)
	Net income attributable to non-controlling redeemable interests in consolidated funds	—			(3,743,327		)	(3,743,327		)
	Net income attributable to OCGH non-controlling interest in consolidated subsidiaries	—			(617,191		)	(617,191		)
	Adjusted net income/net income attributable to Oaktree Capital Group, LLC	$	812,334		$	(655,243	)	$	157,091
	Corporate investments, at equity (5)	$	1,100,500		$	(1,009,820	)	$	90,680
	Total assets(6)	$	2,649,360		$	42,051,821		$	44,701,181
	-1	The adjustment represents the elimination of amounts attributable to the consolidated funds.
	-2	The expense adjustment consists of (a) equity-based compensation charges of $18,231 related to unit grants made before the Company’s initial public offering, (b) consolidated fund expenses of $79,434 and (c) expenses incurred by the Intermediate Holding Companies of $947.
	-3	The interest expense adjustment represents the inclusion of interest expense attributable to non-controlling interests of the consolidated funds and the exclusion of segment interest income.
	-4	The adjustment to other income of consolidated funds primarily represents the inclusion of interest, dividend and other investment income attributable to non-controlling interests of the consolidated funds.
	-5	The adjustment to corporate investments is to remove from segment assets the consolidated funds that are treated as equity method investments for segment reporting purposes.
-6	The total assets adjustment represents the inclusion of investments and other assets of the consolidated funds, net of segment assets eliminated in consolidation, which are primarily corporate investments in funds and incentive income receivable.
	As of or for the Nine Months Ended September 30, 2012
	Segment			Adjustments			Consolidated
Management fees (1)	$	562,692		$	(470,879	)	$	91,813
Incentive income (1)	250,861			(244,493		)	6,368
Investment income (1)	150,382			(132,699		)	17,683
Total expenses (2)	(445,421		)	(97,174		)	(542,595		)
Interest expense, net (3)	(23,914		)	(9,725		)	(33,639		)
Other income, net (4)	2,274			6,260			8,534
Other income of consolidated funds (5)	—			5,795,524			5,795,524
Income taxes	—			(27,493		)	(27,493		)
Net income attributable to non-controlling redeemable interests in consolidated funds	—			(4,868,300		)	(4,868,300		)
Net income attributable to OCGH non-controlling interest in consolidated subsidiaries	—			(379,356		)	(379,356		)
Adjusted net income/net income attributable to Oaktree Capital Group, LLC	$	496,874		$	(428,335	)	$	68,539
Corporate investments, at equity (6)	$	1,236,710		$	(1,108,088	)	$	128,622
Total assets (7)	$	2,266,488		$	44,542,839		$	46,809,327
-1	The adjustment represents the elimination of amounts attributable to the consolidated funds.
-2	The expense adjustment consists of (a) equity-based compensation charges of $27,353 related to unit grants made before the Company’s initial public offering, (b) consolidated fund expenses of $69,428 and (c) expenses incurred by the Intermediate Holding Companies of $393.
-3	The interest expense adjustment represents the inclusion of interest expense attributable to non-controlling interests of the consolidated funds and the exclusion of segment interest income.
-4	The other income, net adjustment represents other income or expenses of OCG or its Intermediate Holding Companies. This amount is attributable to a reduction in the amount of the deferred tax asset under the tax receivable agreement associated with the 2007 Private Offering, which reduced the tax receivable agreement liability payable to OCGH unitholders.
-5	The adjustment to other income of consolidated funds primarily represents the inclusion of interest, dividend and other investment income attributable to non-controlling interests of the consolidated funds.
-6	The adjustment to corporate investments is to remove from segment assets the consolidated funds that are treated as equity method investments for segment reporting purposes.
-7	The total assets adjustment represents the inclusion of investments and other assets of the consolidated funds, net of segment assets eliminated in consolidation, which are primarily corporate investments in funds and incentive income receivable.

ORGANIZATION_AND_BASIS_OF_PRES1

ORGANIZATION AND BASIS OF PRESENTATION (Details)	9 Months Ended
	Sep. 30, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Limited Liability Company (LLC) ownership interest (as a percent)	100.00%

INVESTMENTS_AT_FAIR_VALUE_Inve

INVESTMENTS, AT FAIR VALUE - Investments, at Fair Value (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	$38,764,427	$38,372,626
Equity securities, Fair value as a percentage of investments of consolidated funds	53.20%	49.20%
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	46.80%	50.80%
Total investments, at fair value, Fair Value as a Percentage of Investments of Consolidated Funds as of	100.00%	100.00%
Securities sold short b equities	-120,598	-126,530
Fixed income securities [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	18,163,836	19,488,737
Fixed income securities [Member] | United States [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	13,152,913	13,698,904
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	33.90%	35.70%
Fixed income securities [Member] | United States [Member] | Consumer discretionary [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	3,754,991	5,072,283
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	9.70%	13.20%
Fixed income securities [Member] | United States [Member] | Consumer staples [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	850,671	697,300
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	2.20%	1.80%
Fixed income securities [Member] | United States [Member] | Energy [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	709,682	565,151
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	1.80%	1.50%
Fixed income securities [Member] | United States [Member] | Financials [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	551,391	1,013,230
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	1.40%	2.60%
Fixed income securities [Member] | United States [Member] | Health care [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	724,472	658,932
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	1.90%	1.70%
Fixed income securities [Member] | United States [Member] | Industrials [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	1,840,898	1,957,259
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	4.70%	5.10%
Fixed income securities [Member] | United States [Member] | Information technology [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	1,244,353	908,662
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	3.20%	2.40%
Fixed income securities [Member] | United States [Member] | Materials [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	1,081,165	826,008
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	2.80%	2.20%
Fixed income securities [Member] | United States [Member] | Telecommunication services [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	332,734	282,101
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	0.90%	0.70%
Fixed income securities [Member] | United States [Member] | Utilities [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	2,062,556	1,717,978
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	5.30%	4.50%
Fixed income securities [Member] | Europe [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	3,886,459	4,486,075
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	10.00%	11.70%
Fixed income securities [Member] | Europe [Member] | Consumer discretionary [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	1,509,502	1,607,822
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	3.90%	4.20%
Fixed income securities [Member] | Europe [Member] | Consumer staples [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	154,953	486,037
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	0.40%	1.30%
Fixed income securities [Member] | Europe [Member] | Energy [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	282,569	272,079
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	0.70%	0.70%
Fixed income securities [Member] | Europe [Member] | Financials [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	531,437	627,161
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	1.40%	1.60%
Fixed income securities [Member] | Europe [Member] | Health care [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	25,159	19,585
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	0.10%	0.00%
Fixed income securities [Member] | Europe [Member] | Industrials [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	502,857	531,770
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	1.30%	1.40%
Fixed income securities [Member] | Europe [Member] | Information technology [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	7,280	5,397
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	0.00%	0.00%
Fixed income securities [Member] | Europe [Member] | Materials [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	681,813	717,294
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	1.80%	1.90%
Fixed income securities [Member] | Europe [Member] | Telecommunication services [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	172,840	190,369
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	0.40%	0.50%
Fixed income securities [Member] | Europe [Member] | Utilities [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	18,049	28,561
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	0.00%	0.10%
Fixed income securities [Member] | Asia and other [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	1,124,464	1,303,758
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	2.90%	3.40%
Fixed income securities [Member] | Asia and other [Member] | Consumer discretionary [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	124,192	680,273
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	0.30%	1.80%
Fixed income securities [Member] | Asia and other [Member] | Consumer staples [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	19,488	3,615
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	0.10%	0.00%
Fixed income securities [Member] | Asia and other [Member] | Energy [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	62,885	47,776
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	0.20%	0.10%
Fixed income securities [Member] | Asia and other [Member] | Financials [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	117,585	22,186
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	0.30%	0.10%
Fixed income securities [Member] | Asia and other [Member] | Health care [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	0	1,622
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	0.00%	0.00%
Fixed income securities [Member] | Asia and other [Member] | Industrials [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	676,076	290,639
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	1.70%	0.80%
Fixed income securities [Member] | Asia and other [Member] | Information technology [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	18,648	33,260
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	0.00%	0.10%
Fixed income securities [Member] | Asia and other [Member] | Materials [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	97,568	92,974
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	0.30%	0.20%
Fixed income securities [Member] | Asia and other [Member] | Telecommunication services [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	834	1,939
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	0.00%	0.00%
Fixed income securities [Member] | Asia and other [Member] | Utilities [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Fixed income securities, Fair Value	7,188	129,474
Total fixed income securities, Fair value as a percentage of investments of consolidated funds	0.00%	0.30%
Equity securities [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	20,600,591	18,883,889
Securities sold short b equities	-120,598	-126,530
Equity securities [Member] | United States [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	13,134,705	13,281,294
Equity securities, Fair value as a percentage of investments of consolidated funds	33.90%	34.60%
Equity securities [Member] | United States [Member] | Consumer discretionary [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	2,973,559	3,289,347
Equity securities, Fair value as a percentage of investments of consolidated funds	7.70%	8.60%
Equity securities [Member] | United States [Member] | Consumer staples [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	470,065	444,735
Equity securities, Fair value as a percentage of investments of consolidated funds	1.20%	1.20%
Equity securities [Member] | United States [Member] | Energy [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	563,676	448,412
Equity securities, Fair value as a percentage of investments of consolidated funds	1.50%	1.20%
Equity securities [Member] | United States [Member] | Financials [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	5,636,471	6,001,493
Equity securities, Fair value as a percentage of investments of consolidated funds	14.50%	15.60%
Equity securities [Member] | United States [Member] | Health care [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	250,276	134,239
Equity securities, Fair value as a percentage of investments of consolidated funds	0.60%	0.30%
Equity securities [Member] | United States [Member] | Industrials [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	1,554,872	1,201,156
Equity securities, Fair value as a percentage of investments of consolidated funds	4.00%	3.10%
Equity securities [Member] | United States [Member] | Information technology [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	243,756	199,003
Equity securities, Fair value as a percentage of investments of consolidated funds	0.60%	0.50%
Equity securities [Member] | United States [Member] | Materials [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	1,225,018	1,407,850
Equity securities, Fair value as a percentage of investments of consolidated funds	3.20%	3.70%
Equity securities [Member] | United States [Member] | Telecommunication services [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	40,796	15,022
Equity securities, Fair value as a percentage of investments of consolidated funds	0.10%	0.00%
Equity securities [Member] | United States [Member] | Utilities [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total investments, at fair value	176,216	140,037
Equity securities, Fair value as a percentage of investments of consolidated funds	0.50%	0.40%
Equity securities [Member] | Europe [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	4,593,817	3,475,119
Equity securities, Fair value as a percentage of investments of consolidated funds	11.90%	9.10%
Equity securities [Member] | Europe [Member] | Consumer discretionary [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	167,589	117,485
Equity securities, Fair value as a percentage of investments of consolidated funds	0.50%	0.30%
Equity securities [Member] | Europe [Member] | Consumer staples [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	747,302	1,336,420
Equity securities, Fair value as a percentage of investments of consolidated funds	1.90%	3.50%
Equity securities [Member] | Europe [Member] | Energy [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	77,901	91,724
Equity securities, Fair value as a percentage of investments of consolidated funds	0.20%	0.20%
Equity securities [Member] | Europe [Member] | Financials [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	2,876,742	1,553,598
Equity securities, Fair value as a percentage of investments of consolidated funds	7.40%	4.10%
Equity securities [Member] | Europe [Member] | Health care [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	12,850	0
Equity securities, Fair value as a percentage of investments of consolidated funds	0.00%	0.00%
Equity securities [Member] | Europe [Member] | Industrials [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	462,977	1,388
Equity securities, Fair value as a percentage of investments of consolidated funds	1.20%	0.00%
Equity securities [Member] | Europe [Member] | Information technology [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	1,398	335
Equity securities, Fair value as a percentage of investments of consolidated funds	0.00%	0.00%
Equity securities [Member] | Europe [Member] | Materials [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	246,176	374,169
Equity securities, Fair value as a percentage of investments of consolidated funds	0.70%	1.00%
Equity securities [Member] | Europe [Member] | Telecommunication services [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	882	0
Equity securities, Fair value as a percentage of investments of consolidated funds	0.00%	0.00%
Equity securities [Member] | Asia and other [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	2,872,069	2,127,476
Equity securities, Fair value as a percentage of investments of consolidated funds	7.40%	5.50%
Equity securities [Member] | Asia and other [Member] | Consumer discretionary [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	554,280	99,527
Equity securities, Fair value as a percentage of investments of consolidated funds	1.40%	0.30%
Equity securities [Member] | Asia and other [Member] | Consumer staples [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	25,462	42,688
Equity securities, Fair value as a percentage of investments of consolidated funds	0.10%	0.10%
Equity securities [Member] | Asia and other [Member] | Energy [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	251,661	213,490
Equity securities, Fair value as a percentage of investments of consolidated funds	0.70%	0.60%
Equity securities [Member] | Asia and other [Member] | Financials [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	955,794	973,745
Equity securities, Fair value as a percentage of investments of consolidated funds	2.50%	2.50%
Equity securities [Member] | Asia and other [Member] | Health care [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	810	71
Equity securities, Fair value as a percentage of investments of consolidated funds	0.00%	0.00%
Equity securities [Member] | Asia and other [Member] | Industrials [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	809,879	613,020
Equity securities, Fair value as a percentage of investments of consolidated funds	2.10%	1.60%
Equity securities [Member] | Asia and other [Member] | Information technology [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	82,707	75,583
Equity securities, Fair value as a percentage of investments of consolidated funds	0.20%	0.20%
Equity securities [Member] | Asia and other [Member] | Materials [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	54,050	51,296
Equity securities, Fair value as a percentage of investments of consolidated funds	0.10%	0.10%
Equity securities [Member] | Asia and other [Member] | Telecommunication services [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	7,934	6,044
Equity securities, Fair value as a percentage of investments of consolidated funds	0.00%	0.00%
Equity securities [Member] | Asia and other [Member] | Utilities [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Equity securities, Fair Value	$129,492	$52,012
Equity securities, Fair value as a percentage of investments of consolidated funds	0.30%	0.10%

INVESTMENTS_AT_FAIR_VALUE_Inve1

INVESTMENTS, AT FAIR VALUE - Investments, at Fair Value (Parenthetical) (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
United States [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total fixed income securities	$13,054,005	$13,320,475
Total equity securities	10,526,283	11,637,988
Europe [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total fixed income securities	3,085,553	4,383,068
Total equity securities	3,749,094	2,960,210
Asia and other [Member]	'	'
Schedule Of Investments In Marketable Securities [Line Items]	'	'
Total fixed income securities	1,099,405	1,298,868
Total equity securities	$2,298,307	$1,726,145

INVESTMENTS_AT_FAIR_VALUE_Addi

INVESTMENTS, AT FAIR VALUE - Additional Information (Detail)	Sep. 30, 2013	Dec. 31, 2012
Investments [Abstract]	'	'
Percentage exceeded consolidated net assets	5.00%	5.00%

INVESTMENTS_AT_FAIR_VALUE_Net_

INVESTMENTS, AT FAIR VALUE - Net Gains (Losses) from Investment Activities of Consolidated Funds (Detail) (Consolidated funds [Member], USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Gain (Loss) on Investments [Line Items]	'		'		'		'
Net Realized Gain (Loss) on Investments	$766,199		$1,097,305		$2,796,448		$2,904,964
Net Change in Unrealized Appreciation (Depreciation) on Investments	97,773		808,989		1,007,495		1,434,596
Investments And Other Financial Instruments [Member]	'		'		'		'
Gain (Loss) on Investments [Line Items]	'		'		'		'
Net Realized Gain (Loss) on Investments	760,923		1,028,109		2,773,547		2,754,917
Net Change in Unrealized Appreciation (Depreciation) on Investments	306,542		948,408		998,935		1,535,611
Total return, credit-default and interest-rate swaps [Member] | Not designated as hedging instrument [Member]	'		'		'		'
Gain (Loss) on Investments [Line Items]	'		'		'		'
Net Realized Gain (Loss) on Investments	-1,235	[1]	28,849	[1]	2,648	[1]	59,313	[1]
Net Change in Unrealized Appreciation (Depreciation) on Investments	19,637	[1]	2,189	[1]	44,396	[1]	38,311	[1]
Foreign currency forward contracts [Member] | Not designated as hedging instrument [Member]	'		'		'		'
Gain (Loss) on Investments [Line Items]	'		'		'		'
Net Realized Gain (Loss) on Investments	9,382	[1]	40,148	[1]	28,934	[1]	103,052	[1]
Net Change in Unrealized Appreciation (Depreciation) on Investments	-222,589	[1]	-135,228	[1]	-38,598	[1]	-137,422	[1]
Options and futures [Member] | Not designated as hedging instrument [Member]	'		'		'		'
Gain (Loss) on Investments [Line Items]	'		'		'		'
Net Realized Gain (Loss) on Investments	-2,871	[1]	199	[1]	-8,681	[1]	-12,318	[1]
Net Change in Unrealized Appreciation (Depreciation) on Investments	($5,817)	[1]	($6,380)	[1]	$2,762	[1]	($1,904)	[1]
[1]	Please see note 5 for additional information.

FAIR_VALUE_Additional_Informat

FAIR VALUE - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013
			investment		Level III [Member]	Level III [Member]	Level II [Member]	Level II [Member]	Level II [Member]	Level II [Member]	Level II [Member]
							Swaps (net)-corporate debt [Member]	Swaps (net)-corporate debt [Member]	Foreign exchange contract [Member]	Foreign exchange contract [Member]	Total Return Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Fair value of debt obligations	'	'	'	'	$624,700,000	$652,900,000	'	'	'	'	'
Debt, weighted average interest rate (as a percent)	'	'	'	'	3.20%	3.10%	'	'	'	'	'
Percentage increase in average borrowing rate assumption that would lower fair value of debt obligation	'	'	'	'	10.00%	'	'	'	'	'	'
Fair value of debt obligation, decrease in value due to increase in average borrowing rate	'	'	'	'	617,000,000	'	'	'	'	'	'
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	'	'	'	'	632,600,000	'	'	'	'	'	'
Derivative Fair Value	'	'	'	'	'	'	4,900,000	7,900,000	'	'	'
Foreign exchange contracts	'	'	'	'	'	'	'	'	1,400,000	800,000	'
Transfers between Level I and Level II during the period	0	'	'	'	'	'	'	'	'	'	'
Transfers betwen level II and Level I during the period	'	17,600,000	1,066,800,000	17,600,000	'	'	'	'	'	'	'
Number of investments (in investments)	'	'	1	'	'	'	'	'	'	'	'
Derivative assets	'	'	'	'	'	'	'	'	'	'	$100,000

FAIR_VALUE_Financial_Instrumen

FAIR VALUE - Financial Instruments Held by Consolidated Funds (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	$38,764,427	$38,372,626
Securities sold short b equities	-120,598	-126,530
Options written [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets, at fair value	287	5,520
Swaps (net)-corporate debt [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets, at fair value	83,432	39,166
Forward contracts (net) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative liabilities, at fair value	-132,386	-93,863
Futures [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets, at fair value	844	90
Corporate debt - bank debt [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	10,349,718	9,666,167
Corporate debt - all other [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	7,814,118	9,822,570
Equities - common stock [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	11,842,043	12,519,258
Equities - preferred stock [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	871,896	654,749
Real estate [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	5,890,050	3,946,142
Real estate loan portfolio [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	1,979,132	1,737,822
Other [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	17,470	25,918
Level I [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	4,694,907	3,367,195
Securities sold short b equities	-120,598	-126,530
Level I [Member] | Options written [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets, at fair value	0	0
Level I [Member] | Swaps (net)-corporate debt [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets, at fair value	0	0
Level I [Member] | Forward contracts (net) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative liabilities, at fair value	0	0
Level I [Member] | Futures [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets, at fair value	844	90
Level I [Member] | Corporate debt - bank debt [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	0	0
Level I [Member] | Corporate debt - all other [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	0	0
Level I [Member] | Equities - common stock [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	4,689,131	3,362,742
Level I [Member] | Equities - preferred stock [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	3,888	2,520
Level I [Member] | Real estate [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	0	0
Level I [Member] | Real estate loan portfolio [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	0	0
Level I [Member] | Other [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	1,888	1,933
Level II [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	13,938,266	15,142,246
Securities sold short b equities	0	0
Level II [Member] | Options written [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets, at fair value	287	5,520
Level II [Member] | Swaps (net)-corporate debt [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets, at fair value	8,635	'
Derivative liabilities, at fair value	'	-5,539
Level II [Member] | Forward contracts (net) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative liabilities, at fair value	-132,386	-93,863
Level II [Member] | Futures [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets, at fair value	0	0
Level II [Member] | Corporate debt - bank debt [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	8,060,810	7,412,691
Level II [Member] | Corporate debt - all other [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	5,152,485	6,663,519
Level II [Member] | Equities - common stock [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	683,956	1,055,465
Level II [Member] | Equities - preferred stock [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	5,208	2,133
Level II [Member] | Real estate [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	34,340	0
Level II [Member] | Real estate loan portfolio [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	0	0
Level II [Member] | Other [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	1,467	8,438
Level III [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	20,131,254	19,863,185
Securities sold short b equities	0	0
Level III [Member] | Options written [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets, at fair value	0	0
Level III [Member] | Swaps (net)-corporate debt [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets, at fair value	74,797	44,705
Level III [Member] | Forward contracts (net) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative liabilities, at fair value	0	0
Level III [Member] | Futures [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets, at fair value	0	0
Level III [Member] | Corporate debt - bank debt [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	2,288,908	2,253,476
Level III [Member] | Corporate debt - all other [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	2,661,633	3,159,051
Level III [Member] | Equities - common stock [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	6,468,956	8,101,051
Level III [Member] | Equities - preferred stock [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	862,800	650,096
Level III [Member] | Real estate [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	5,855,710	3,946,142
Level III [Member] | Real estate loan portfolio [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	1,979,132	1,737,822
Level III [Member] | Other [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment, at fair value	$14,115	$15,547

FAIR_VALUE_Summary_of_Changes_

FAIR VALUE - Summary of Changes in Fair Value of Level III Investments (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Beginning balance	$19,542,983	$17,570,832	$19,907,890	$15,673,386
Transfers into Level III	548,899	339,267	1,599,038	1,575,796
Transfers out of Level III	-750,939	-720,321	-1,954,238	-1,605,840
Purchases	2,092,059	2,421,179	4,480,835	5,142,777
Sales	-1,902,935	-1,401,004	-5,505,396	-3,371,604
Realized gains (losses), net	516,225	354,727	1,350,956	659,785
Unrealized appreciation (depreciation), net	159,759	216,699	326,966	707,079
Ending balance	20,206,051	18,781,379	20,206,051	18,781,379
Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period	381,868	606,268	1,082,155	1,186,658
Corporate Debt - Bank Debt [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Beginning balance	1,711,680	2,424,016	2,253,476	1,978,637
Transfers into Level III	276,696	1,403	440,605	377,015
Transfers out of Level III	-72,043	-319,348	-669,172	-538,993
Purchases	533,073	652,231	827,924	1,355,860
Sales	-280,820	-197,648	-708,296	-561,188
Realized gains (losses), net	19,096	25,762	18,523	35,655
Unrealized appreciation (depreciation), net	101,226	27,074	125,848	-33,496
Ending balance	2,288,908	2,613,490	2,288,908	2,613,490
Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period	102,940	1,492	90,534	-8,054
Corporate Debt - All Other [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Beginning balance	2,535,280	3,054,677	3,159,051	3,155,241
Transfers into Level III	48,124	234,196	59,544	606,212
Transfers out of Level III	-14,544	-389,549	-215,738	-590,324
Purchases	240,959	333,320	358,510	745,392
Sales	-254,764	-89,188	-898,672	-953,083
Realized gains (losses), net	65,722	7,536	157,027	107,829
Unrealized appreciation (depreciation), net	40,856	24,186	41,911	103,911
Ending balance	2,661,633	3,175,178	2,661,633	3,175,178
Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period	22,270	24,723	101,485	156,816
Equities - Common Stock [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Beginning balance	7,373,118	7,180,826	8,101,051	6,164,025
Transfers into Level III	105,583	102,504	698,735	567,143
Transfers out of Level III	-654,361	-11,424	-1,059,337	-371,106
Purchases	334,417	23,065	685,588	637,685
Sales	-860,649	-118,584	-2,277,253	-189,821
Realized gains (losses), net	397,272	41,470	922,320	-19,541
Unrealized appreciation (depreciation), net	-226,424	203,827	-602,148	633,299
Ending balance	6,468,956	7,421,684	6,468,956	7,421,684
Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period	-14,316	267,576	119,749	552,674
Equities - Preferred Stock [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Beginning balance	663,523	1,046,978	650,096	1,090,107
Transfers into Level III	118,496	1,164	385,099	8,151
Transfers out of Level III	-9,991	0	-9,991	-100,064
Purchases	105,921	51,479	203,315	95,040
Sales	-723	-277,090	-312,669	-280,947
Realized gains (losses), net	164	273,589	55,985	270,390
Unrealized appreciation (depreciation), net	-14,590	-255,308	-109,035	-241,865
Ending balance	862,800	840,812	862,800	840,812
Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period	30,688	26,859	-50,371	41,154
Real Estate [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Beginning balance	5,199,534	3,132,225	3,946,142	2,786,862
Transfers into Level III	0	0	15,055	17,275
Transfers out of Level III	'	0	0	-5,353
Purchases	624,020	352,462	1,556,156	1,072,682
Sales	-148,528	-182,159	-497,633	-786,375
Realized gains (losses), net	24,190	-7,402	169,388	236,762
Unrealized appreciation (depreciation), net	156,494	194,118	666,602	167,391
Ending balance	5,855,710	3,489,244	5,855,710	3,489,244
Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period	138,039	207,526	616,914	364,835
Real Estate Loan Portfolio [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Beginning balance	1,989,515	712,145	1,737,822	479,690
Transfers into Level III	0	0	0	0
Transfers out of Level III	'	0	0	0
Purchases	253,669	1,008,622	849,342	1,236,118
Sales	-357,451	-528,500	-810,873	-592,355
Realized gains (losses), net	9,781	8,256	27,713	23,174
Unrealized appreciation (depreciation), net	83,618	25,410	175,128	79,306
Ending balance	1,979,132	1,225,933	1,979,132	1,225,933
Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period	83,618	79,306	175,128	79,306
Swap [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Beginning balance	55,817	0	44,705	0
Transfers into Level III	0	0	0	0
Transfers out of Level III	'	0	0	0
Purchases	'	0	0	0
Sales	'	0	0	0
Realized gains (losses), net	'	0	0	0
Unrealized appreciation (depreciation), net	18,980	0	30,092	0
Ending balance	74,797	0	74,797	0
Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period	18,973	0	30,092	0
Other [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Beginning balance	14,516	19,965	15,547	18,824
Transfers into Level III	0	0	0	0
Transfers out of Level III	'	0	0	0
Purchases	'	0	0	0
Sales	'	-7,835	0	-7,835
Realized gains (losses), net	'	5,516	0	5,516
Unrealized appreciation (depreciation), net	-401	-2,608	-1,432	-1,467
Ending balance	14,115	15,038	14,115	15,038
Net change in unrealized appreciation (depreciation) attributable to assets still held at end of period	($344)	($1,214)	($1,376)	($73)

FAIR_VALUE_Summary_of_Valuatio

FAIR VALUE - Summary of Valuation Techniques and Quantitative Information (Detail) (USD $)

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

In Thousands, unless otherwise specified

Level III [Member]

Level III [Member]

Fair Value, Inputs, Level 3, Including Swaps [Member]

Other [Member]

Market Approach Comparable Companies Valuation Technique [Member]

Market Approach Comparable Companies Valuation Technique [Member]

Market Approach Comparable Companies Valuation Technique [Member]

Market Approach Value Of Underlying Assets Valuation Technique [Member]

Market Approach Value Of Underlying Assets Valuation Technique [Member]

Market Approach Value Of Underlying Assets Valuation Technique [Member]

Recent Transaction Price Valuation Technique [Member]

Recent Transaction Price Valuation Technique [Member]

Recent Transaction Price Valuation Technique [Member]

Recent Transaction Price Valuation Technique [Member]

Discounted Cash Flow and Sales Approach [Member]

Discounted Cash Flow and Sales Approach [Member]

Recent Market Information [Member]

Recent Market Information [Member]

Recent Market Information [Member]

Sales Approach [Member]

Discounted Cash Flow Valuation Technique [Member]

Discounted Cash Flow Valuation Technique [Member]

Discounted Cash Flow Valuation Technique [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Credit Oriented Investments [Member]

Equity [Member]

Real Estate Investment [Member]

Credit Oriented Investments [Member]

Equity [Member]

Real Estate Investment [Member]

Credit Oriented Investments [Member]

Equity [Member]

Real Estate Investment [Member]

Real estate loan portfolio [Member]

Credit Oriented Investments [Member]

Equity [Member]

Credit Oriented Investments [Member]

Equity [Member]

Real Estate Investment [Member]

Real Estate Investment [Member]

Credit Oriented Investments [Member]

Real Estate Investment [Member]

Real estate loan portfolio [Member]

Market Approach Comparable Companies Valuation Technique [Member]

Market Approach Comparable Companies Valuation Technique [Member]

Market Approach Comparable Companies Valuation Technique [Member]

Market Approach Value Of Underlying Assets Valuation Technique [Member]

Market Approach Value Of Underlying Assets Valuation Technique [Member]

Market Approach Value Of Underlying Assets Valuation Technique [Member]

Discounted Cash Flow and Sales Approach [Member]

Recent Market Information [Member]

Discounted Cash Flow Valuation Technique [Member]

Discounted Cash Flow Valuation Technique [Member]

Discounted Cash Flow Valuation Technique [Member]

Discounted Cash Flow Valuation Technique [Member]

Market Approach Comparable Companies Valuation Technique [Member]

Market Approach Comparable Companies Valuation Technique [Member]

Market Approach Comparable Companies Valuation Technique [Member]

Market Approach Value Of Underlying Assets Valuation Technique [Member]

Market Approach Value Of Underlying Assets Valuation Technique [Member]

Market Approach Value Of Underlying Assets Valuation Technique [Member]

Discounted Cash Flow and Sales Approach [Member]

Recent Market Information [Member]

Discounted Cash Flow Valuation Technique [Member]

Discounted Cash Flow Valuation Technique [Member]

Discounted Cash Flow Valuation Technique [Member]

Discounted Cash Flow Valuation Technique [Member]

Credit Oriented Investments [Member]

Equity [Member]

Real Estate Investment [Member]

Credit Oriented Investments [Member]

Equity [Member]

Real Estate Investment [Member]

Credit Oriented Investments [Member]

Real Estate Investment [Member]

Credit Oriented Investments [Member]

Equity [Member]

Real Estate Investment [Member]

Real estate loan portfolio [Member]

Credit Oriented Investments [Member]

Equity [Member]

Real Estate Investment [Member]

Credit Oriented Investments [Member]

Equity [Member]

Real Estate Investment [Member]

Credit Oriented Investments [Member]

Real Estate Investment [Member]

Credit Oriented Investments [Member]

Equity [Member]

Real Estate Investment [Member]

Real estate loan portfolio [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Level III [Member]

Fair Value Inputs, Assets, Quantitative Information [Line Items]

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Investment, at fair value

$38,764,427

$38,372,626

$20,131,254

$19,863,185

$20,206,051

$14,115

$1,264,193

[1]

$5,126,645

[1]

$1,013,953

[1]

$204,597

[1],[2]

$891,062

[1],[2]

$397,321

[1],[2]

$961,333

[3]

$1,164,874

[3]

$962,463

[3]

$496,282

[3]

$364,961

[4],[5]

$111,323

[5]

$984,882

[6]

$37,852

[6]

$1,162,903

[6]

$472,869

[4]

$1,245,372

[5]

$1,846,201

[5],[7]

$1,482,850

[5]

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Fair Value Inputs, Discount Rate (as a percent)

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'

'

'

'

'

'

'

'

'

'

'

'

'

13.00%

[10],[4],[5],[8],[9]

'

8.00%

[10],[5],[8],[9]

11.00%

[10],[5],[8],[9]

8.00%

[10],[5],[7],[8],[9]

12.00%

[10],[5],[7],[8],[9]

'

'

'

'

'

'

33.00%

[10],[4],[5],[8],[9]

'

19.00%

[10],[5],[8],[9]

13.00%

[10],[5],[8],[9]

40.00%

[10],[5],[7],[8],[9]

30.00%

[10],[5],[7],[8],[9]

Fair Value Inputs Terminal Capitalization Rate (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.06

[10],[5],[7],[8],[9]

'

'

'

'

'

'

'

'

'

'

'

0.15

[10],[5],[7],[8],[9]

'

Fair Value Inputs Direct Capitalization Rate (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.07

[10],[5],[7],[8],[9]

'

'

'

'

'

'

'

'

'

'

'

0.09

[10],[5],[7],[8],[9]

'

Fair Value Inputs, Net Operating Income Growth Rate (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.00%

[10],[5],[7],[8],[9]

'

'

'

'

'

'

'

'

'

'

'

31.00%

[10],[5],[7],[8],[9]

'

Fair Value Inputs Absorption Rate (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

16.00%

[10],[5],[7],[8],[9]

'

'

'

'

'

'

'

'

'

'

'

33.00%

[10],[5],[7],[8],[9]

'

Fair Value Inputs Earnings Multiple

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4

[1],[10],[11],[8],[9]

3

[1],[10],[11],[8],[9]

6

[1],[10],[11],[8],[9]

'

'

'

'

'

'

'

'

'

9

[1],[10],[11],[8],[9]

13

[1],[10],[11],[8],[9]

12

[1],[10],[11],[8],[9]

'

'

'

'

'

'

'

'

'

Fair Value Inputs Underlying Asset Multiple

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.9

[1],[10],[2],[8],[9]

1

[1],[10],[2],[8],[9]

1.1

[1],[10],[2],[8],[9]

'

'

'

'

'

'

'

'

'

1.1

[1],[10],[2],[8],[9]

1.4

[1],[10],[2],[8],[9]

1.3

[1],[10],[2],[8],[9]

'

'

'

'

'

'

Fair Value Inputs, Quoted Prices Discount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.00%

[10],[6],[8],[9]

'

'

'

'

'

'

'

'

'

'

'

6.00%

[10],[6],[8],[9]

'

'

'

'

[1]

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.

[2]

A market approach using the value of underlying assets utilizes a multiple, based on comparable companies, of underlying assets or the net book value of the portfolio company. The Company typically obtains the value of underlying assets from the underlying portfolio company's financial statements or from pricing vendors. The Company may value the underlying assets by using prices and other relevant information from market transactions involving comparable assets.

[3]

Certain investments are valued based on recent transactions, generally defined as investments purchased or sold within six months of the valuation date, adjusted when appropriate based on changes in significant unobservable inputs, valuations of comparable companies and other similar transactions. The fair value may also be based on a pending transaction expected to close after the valuation date.

[4]

The sales approach uses prices and other relevant information generated by market transactions involving comparable assets. The significant unobservable inputs used in the sales approach generally include adjustments to transactions involving comparable assets or properties, adjustments to external or internal appraised values, and the Company's assumptions regarding market trends or other relevant factors.

[5]

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, certain real estate-oriented investments and certain real estate loan portfolios.

[6]

Certain investments are valued using quoted prices 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. Quoted prices include exchange-listed prices and prices obtained from brokers or pricing vendors. Prices obtained from brokers or pricing vendors are evaluated based on trading activity of the subject or similar securities or comparable-yield analysis.

[7]

The discounted cash flow model for certain real estate-oriented investments and certain real estate loan portfolios contains a sell-out analysis. In these cases, the discounted cash flow is based on the expected timing and prices of sales of the underlying properties. The Company's determination of the sales prices of these properties typically includes consideration of prices and other relevant information from market transactions involving comparable properties.

[8]

The significant unobservable inputs used in the fair-value measurement of real estate investments utilizing a discounted cash flow analysis can include one or more of the following: discount rate, terminal capitalization rate, direct capitalization rate, net operating income growth rate or absorption rate. An increase (decrease) in a discount rate, terminal capitalization rate or direct capitalization rate would result in a lower (higher) fair-value measurement. An increase (decrease) in a net operating income growth rate or absorption rate would result in a higher (lower) fair-value measurement. Generally, a change in a net operating income growth rate or absorption rate would be accompanied by a directionally similar change in the discount rate.

[9]

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 certain real estate loan portfolios. An increase (decrease) in the discount rate would result in a lower (higher) fair-value measurement.

[10]

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.

[11]

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.

HEDGES_AND_OTHER_DERIVATIVE_FI2

HEDGES AND OTHER DERIVATIVE FINANCIAL INSTRUMENTS - Additional Information (Detail) (USD $)	Jan. 31, 2013	Jan. 31, 2013	Sep. 30, 2013	Dec. 31, 2012	Aug. 31, 2013	Sep. 30, 2013
	Interest Rate Swap [Member]	Designated as Hedging Instrument [Member]	Designated as Hedging Instrument [Member]	Designated as Hedging Instrument [Member]	Total Return Swap [Member]	Total Return Swap [Member]
	Cash Flow Hedging [Member]	Interest Rate Swap [Member]	Interest Rate Swap [Member]	Interest Rate Swap [Member]	Not designated as hedging instrument [Member]	Not designated as hedging instrument [Member]
		Cash Flow Hedging [Member]	Cash Flow Hedging [Member]	Cash Flow Hedging [Member]	Fair Value Hedging [Member]	Fair Value Hedging [Member]
Derivatives And Hedging Activities [Line Items]	'	'	'	'	'	'
Notional Value of Interest-Rate Swap	$175,000,000	'	'	'	'	'
Notional Value of Derivatives designated as cash flow hedge	'	168,800,000	386,300,000	240,000,000	'	'
Derivative, Fixed Interest Rate (as a percent)	'	2.60%	'	'	'	'
Derivative, Remaining Maturity (in years)	'	'4 years	'	'	'	'
Derivative, Average Remaining Maturity (in years)	'	'	'	'	'2 years	'
Derivative, Collateral, Right to Reclaim Cash	'	'	'	'	'	40,000,000
Contract amount	'	'	'	'	$200,000,000	$135,561,000

HEDGES_AND_OTHER_DERIVATIVE_FI3

HEDGES AND OTHER DERIVATIVE FINANCIAL INSTRUMENTS - Summary of Net Forward Currency Sell Contracts Under Freestanding Derivatives (Detail) (Not designated as hedging instrument [Member], Forward contracts (net) [Member])

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

9 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

USD ($)

USD ($)

Euro Contract 2 [Member]

Euro Contract 2 [Member]

Euro Contract 2 [Member]

Euro Contract 2 [Member]

USD Contract [Member]

USD Contract [Member]

GBP Contract [Member]

GBP Contract [Member]

GBP Contract [Member]

JPY Contract [Member]

JPY Contract [Member]

JPY Contract [Member]

JPY Contract [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Euro [Member]

Euro [Member]

Euro [Member]

Euro [Member]

USD Contract 1 [Member]

USD ($)

USD ($)

British Pound Contract [Member]

British Pound Contract [Member]

Japanese Yen [Member]

Japanese Yen [Member]

Japanese Yen [Member]

Japanese Yen [Member]

Japanese Yen [Member]

Japanese Yen [Member]

Euro Contract 2 [Member]

Euro Contract 2 [Member]

USD Contract [Member]

Japanese Yen [Member]

Japanese Yen [Member]

Euro Contract 2 [Member]

Euro Contract 2 [Member]

USD Contract [Member]

USD ($)

USD ($)

EUR (€)

EUR (€)

USD ($)

USD ($)

GBP (£)

USD ($)

USD ($)

JPY (¥)

JPY (¥)

Euro [Member]

Euro [Member]

USD Contract 1 [Member]

Euro [Member]

Euro [Member]

USD Contract 1 [Member]

Derivative [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Contract amount

$265,003,000

$120,573,000

$144,894,000

$104,155,000

€ 110,360,000

€ 93,500,000

$59,511,000

$59,511,000

$4,643,000

'

£ 3,000,000

$55,955,000

$16,418,000

¥ 5,468,700,000

¥ 1,330,000,000

'

'

'

'

'

'

'

'

'

'

Market value in U.S. dollars

266,404,000

121,376,000

149,326,000

105,997,000

'

'

56,395,000

'

'

4,848,000

'

55,835,000

15,379,000

'

'

'

'

'

'

'

'

'

'

'

'

Net unrealized appreciation (depreciation)

($1,401,000)

($803,000)

($4,432,000)

($1,842,000)

'

'

$3,116,000

'

'

($205,000)

'

$120,000

$1,039,000

'

'

'

'

'

'

'

'

'

'

'

'

Expiration date

'

'

'

'

'

'

'

'

'

30-Apr-14

'

'

'

'

'

27-Nov-13

28-Feb-13

4-Oct-13

17-Jan-13

4-Oct-13

30-Jan-15

31-May-13

31-Jul-14

31-Oct-13

27-Jun-14

HEDGES_AND_OTHER_DERIVATIVE_FI4

HEDGES AND OTHER DERIVATIVE FINANCIAL INSTRUMENTS - Fair Value of the Total-return Swap (Details) (Not designated as hedging instrument [Member])	9 Months Ended			9 Months Ended	12 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Aug. 31, 2013	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2013
	Fair Value Hedging [Member]	Fair Value Hedging [Member]	Fair Value Hedging [Member]	Forward contracts (net) [Member]	Forward contracts (net) [Member]	GBP Contract [Member]	GBP Contract [Member]	GBP Contract [Member]	USD Contract [Member]
	USD ($)	Total Return Swap [Member]	Total Return Swap [Member]	USD ($)	USD ($)	Forward contracts (net) [Member]	Forward contracts (net) [Member]	Forward contracts (net) [Member]	Forward contracts (net) [Member]
		USD ($)	USD ($)			USD ($)	British Pound Contract [Member]	British Pound Contract [Member]	USD ($)
							USD ($)	GBP (£)
Derivative [Line Items]	'	'	'	'	'	'	'	'	'
Notional	'	$135,561,000	$200,000,000	$265,003,000	$120,573,000	$4,643,000	'	£ 3,000,000	$59,511,000
Fair Value	$132,000	'	'	($1,401,000)	($803,000)	'	($205,000)	'	'

HEDGES_AND_OTHER_DERIVATIVE_FI5

HEDGES AND OTHER DERIVATIVE FINANCIAL INSTRUMENTS - Summary of Impact of Freestanding Derivative Instruments on Condensed Consolidated Statement of Operations (Detail) (Not designated as hedging instrument [Member], USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Forward contracts (net) [Member]	'		'		'		'
Derivative Instruments, Gain (Loss) [Line Items]	'		'		'		'
Foreign currency forward contracts	($3,531,000)	[1]	($1,483,000)	[1]	$1,318,000	[1]	$1,543,000	[1]
Total Return Swap [Member]	'		'		'		'
Derivative Instruments, Gain (Loss) [Line Items]	'		'		'		'
Foreign currency forward contracts	$132		$0		$132		$0
[1]	To the extent that the Company's freestanding derivatives are utilized to hedge its 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 of expenses) reflected in consolidated general and administrative expenses.

HEDGES_AND_OTHER_DERIVATIVE_FI6

HEDGES AND OTHER DERIVATIVE FINANCIAL INSTRUMENTS - Impact of Derivative Instruments Held by Consolidated Funds on Condensed Consolidated Statements of Operations (Detail) (Not designated as hedging instrument [Member], Net Investment Hedging [Member], Consolidated funds [Member], USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Derivatives, Fair Value [Line Items]	'	'	'	'
Derivative, Gain (Loss) on Derivative, Net	$5,276	$69,196	$22,901	$150,047
Unrealized Gain (Loss) on Derivatives	-208,769	-139,419	8,560	-101,015
Total return, credit-default and interest-rate swaps [Member]	'	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'	'
Derivative, Gain (Loss) on Derivative, Net	-1,235	28,849	2,648	59,313
Unrealized Gain (Loss) on Derivatives	19,637	2,189	44,396	38,311
Foreign currency forward contracts [Member]	'	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'	'
Derivative, Gain (Loss) on Derivative, Net	9,382	40,148	28,934	103,052
Unrealized Gain (Loss) on Derivatives	-222,589	-135,228	-38,598	-137,422
Options and futures [Member]	'	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'	'
Derivative, Gain (Loss) on Derivative, Net	-2,871	199	-8,681	-12,318
Unrealized Gain (Loss) on Derivatives	($5,817)	($6,380)	$2,762	($1,904)

HEDGES_AND_OTHER_DERIVATIVE_FI7

HEDGES AND OTHER DERIVATIVE FINANCIAL INSTRUMENTS - Rights of Setoff and Related Arrangements (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Derivatives, Fair Value [Line Items]	'	'
Gross Amount of Assets	$111,050	$109,118
Gross Amounts Offset in Assets	4,061	1,558
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Assets	0	340
Net Amount, Derivative Assets	93,510	73,318
Gross Amount of Liabilities	-165,042	-166,908
Gross Amounts Offset in Liabilities	-4,061	-1,558
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Liabilities	0	-2,507
Net Amount, Derivative Liabilities	-147,502	-128,941
Derivative Financial Instruments, Assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Net Amounts of Assets (Liabilities) Presented	106,989	107,560
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Assets	13,479	33,902
Derivative Financial Instruments, Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Net Amounts of Assets (Liabilities) Presented	-160,981	-165,350
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Liabilities	-13,479	-33,902
Foreign Currency Forward Contracts [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Gross Amount of Assets	4,009	1,558
Gross Amounts Offset in Assets	4,009	1,558
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Assets	0	0
Net Amount, Derivative Assets	0	549
Gross Amount of Liabilities	-5,410	-2,361
Gross Amounts Offset in Liabilities	-4,009	-1,558
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Liabilities	0	0
Net Amount, Derivative Liabilities	-1,395	-1,457
Foreign Currency Forward Contracts [Member] | Derivative Financial Instruments, Assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Net Amounts of Assets (Liabilities) Presented	0	0
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Assets	0	-549
Foreign Currency Forward Contracts [Member] | Derivative Financial Instruments, Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Net Amounts of Assets (Liabilities) Presented	-1,401	-803
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Liabilities	-6	654
Total Return Swap [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Gross Amount of Assets	132	'
Gross Amounts Offset in Assets	0	'
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Assets	0	'
Net Amount, Derivative Assets	132	'
Total Return Swap [Member] | Derivative Financial Instruments, Assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Net Amounts of Assets (Liabilities) Presented	132	'
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Assets	0	'
Interest Rate Swap [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Gross Amount of Liabilities	-4,900	-7,900
Gross Amounts Offset in Liabilities	0	0
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Liabilities	0	0
Net Amount, Derivative Liabilities	-4,906	-7,795
Interest Rate Swap [Member] | Derivative Financial Instruments, Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Net Amounts of Assets (Liabilities) Presented	-4,900	-7,900
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Liabilities	6	-105
Foreign Currency Forward Contracts and Interest-rate Swaps [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Gross Amount of Liabilities	-10,310	-10,261
Gross Amounts Offset in Liabilities	-4,009	-1,558
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Liabilities	0	0
Net Amount, Derivative Liabilities	-6,301	-9,252
Foreign Currency Forward Contracts and Interest-rate Swaps [Member] | Derivative Financial Instruments, Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Net Amounts of Assets (Liabilities) Presented	-6,301	-8,703
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Liabilities	0	549
Oaktree Capital Group, LLC [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Gross Amount of Assets	4,141	'
Gross Amounts Offset in Assets	4,009	'
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Assets	0	'
Net Amount, Derivative Assets	132	'
Oaktree Capital Group, LLC [Member] | Derivative Financial Instruments, Assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Net Amounts of Assets (Liabilities) Presented	132	'
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Assets	0	'
Consolidated funds [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Gross Amount of Assets	106,909	107,560
Gross Amounts Offset in Assets	52	0
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Assets	0	340
Net Amount, Derivative Assets	93,378	72,769
Gross Amount of Liabilities	-154,732	-156,647
Gross Amounts Offset in Liabilities	-52	0
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Liabilities	0	-2,507
Net Amount, Derivative Liabilities	-141,201	-119,689
Consolidated funds [Member] | Derivative Financial Instruments, Assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Net Amounts of Assets (Liabilities) Presented	106,857	107,560
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Assets	13,479	34,451
Consolidated funds [Member] | Derivative Financial Instruments, Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Net Amounts of Assets (Liabilities) Presented	-154,680	-156,647
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Liabilities	-13,479	-34,451
Consolidated funds [Member] | Foreign Currency Forward Contracts [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Gross Amount of Assets	16,989	52,663
Gross Amounts Offset in Assets	52	0
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Assets	0	0
Net Amount, Derivative Assets	3,549	18,524
Gross Amount of Liabilities	-149,375	-146,526
Gross Amounts Offset in Liabilities	-52	0
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Liabilities	0	-632
Net Amount, Derivative Liabilities	-135,935	-111,755
Consolidated funds [Member] | Foreign Currency Forward Contracts [Member] | Derivative Financial Instruments, Assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Net Amounts of Assets (Liabilities) Presented	16,937	52,663
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Assets	13,388	34,139
Consolidated funds [Member] | Foreign Currency Forward Contracts [Member] | Derivative Financial Instruments, Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Net Amounts of Assets (Liabilities) Presented	-149,323	-146,526
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Liabilities	-13,388	-34,139
Consolidated funds [Member] | Total-return, Credit-default and Interest-Rate Swaps [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Gross Amount of Assets	83,191	48,727
Gross Amounts Offset in Assets	0	0
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Assets	0	340
Net Amount, Derivative Assets	83,100	48,075
Gross Amount of Liabilities	-1,885	-9,561
Gross Amounts Offset in Liabilities	0	0
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Liabilities	0	-1,828
Net Amount, Derivative Liabilities	-1,794	-7,421
Consolidated funds [Member] | Total-return, Credit-default and Interest-Rate Swaps [Member] | Derivative Financial Instruments, Assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Net Amounts of Assets (Liabilities) Presented	83,191	48,727
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Assets	91	312
Consolidated funds [Member] | Total-return, Credit-default and Interest-Rate Swaps [Member] | Derivative Financial Instruments, Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Net Amounts of Assets (Liabilities) Presented	-1,885	-9,561
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Liabilities	-91	-312
Consolidated funds [Member] | Options and futures [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Gross Amount of Assets	4,603	6,170
Gross Amounts Offset in Assets	0	0
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Assets	0	0
Net Amount, Derivative Assets	4,603	6,170
Gross Amount of Liabilities	-3,472	-560
Gross Amounts Offset in Liabilities	0	0
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Liabilities	0	-47
Net Amount, Derivative Liabilities	-3,472	-513
Consolidated funds [Member] | Options and futures [Member] | Derivative Financial Instruments, Assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Net Amounts of Assets (Liabilities) Presented	4,603	6,170
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Assets	0	0
Consolidated funds [Member] | Options and futures [Member] | Derivative Financial Instruments, Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Net Amounts of Assets (Liabilities) Presented	-3,472	-560
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Liabilities	0	0
Consolidated funds [Member] | Swaptions [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Gross Amount of Assets	2,126	'
Gross Amounts Offset in Assets	0	'
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Assets	0	'
Net Amount, Derivative Assets	2,126	'
Consolidated funds [Member] | Swaptions [Member] | Derivative Financial Instruments, Assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Net Amounts of Assets (Liabilities) Presented	2,126	'
Gross Amounts Not Offset in Statement of Financial Condition, Derivative Assets	$0	'

DEBT_OBLIGATIONS_AND_CREDIT_FA2

DEBT OBLIGATIONS AND CREDIT FACILITIES - Debt Obligations (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Debt Instrument [Line Items]	'	'
Debt obligations	$585,714,000	$615,179,000
5.03% [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt obligations	10,714,000	21,429,000
6.09% [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt obligations	50,000,000	50,000,000
5.82% [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt obligations	50,000,000	50,000,000
6.75% [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt obligations	250,000,000	250,000,000
2.50% Debt, Term Loan Two [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt obligations	$225,000,000	$243,750,000

DEBT_OBLIGATIONS_AND_CREDIT_FA3

DEBT OBLIGATIONS AND CREDIT FACILITIES - Debt Obligations (Parenthetical) (Detail) (USD $)	9 Months Ended
	Sep. 30, 2013
5.03% [Member]	'
Debt Instrument [Line Items]	'
Debt Instrument, Face Amount	$75,000,000
Debt Instrument, Interest Rate, Stated Percentage (as a percent)	5.03%
Debt Instrument, Offering Date	30-Jun-04
Debt Instrument, Date of First Required Payment	14-Jun-08
6.09% [Member]	'
Debt Instrument [Line Items]	'
Debt Instrument, Face Amount	50,000,000
Debt Instrument, Interest Rate, Stated Percentage (as a percent)	6.09%
Debt Instrument, Offering Date	30-Jun-06
Debt Instrument, Maturity Date	6-Jun-16
5.82% [Member]	'
Debt Instrument [Line Items]	'
Debt Instrument, Face Amount	50,000,000
Debt Instrument, Interest Rate, Stated Percentage (as a percent)	5.82%
Debt Instrument, Offering Date	30-Nov-06
Debt Instrument, Maturity Date	8-Nov-16
6.75% [Member]	'
Debt Instrument [Line Items]	'
Debt Instrument, Face Amount	250,000,000
Debt Instrument, Interest Rate, Stated Percentage (as a percent)	6.75%
Debt Instrument, Offering Date	30-Nov-09
Debt Instrument, Maturity Date	2-Dec-19
2.50% [Member]	'
Debt Instrument [Line Items]	'
Debt Instrument, Face Amount	250,000,000
Debt Instrument, Loan Amortization Rate (as a percent)	2.50%
Debt Instrument, Offering Date	31-Dec-12
Debt Instrument, Maturity Date	21-Dec-17
Final principal payment	$125,000,000

DEBT_OBLIGATIONS_AND_CREDIT_FA4

DEBT OBLIGATIONS AND CREDIT FACILITIES - Future Principal Payments of Debt Obligations (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Debt Disclosure [Abstract]	'	'
Remainder of 2013	$6,250	'
2014	35,714	'
2015	25,000	'
2016	125,000	'
2017	143,750	'
Thereafter	250,000	'
Total	$585,714	$615,179

DEBT_OBLIGATIONS_AND_CREDIT_FA5

DEBT OBLIGATIONS AND CREDIT FACILITIES - Additional Information (Detail) (USD $)	9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Debt Instrument [Line Items]	'	'
Debt obligations	$585,714,000	$615,179,000
2.50% Debt, Term Loan Two [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt Instrument, Face Amount	250,000,000	'
Debt obligations	225,000,000	243,750,000
Debt Instrument, Loan Amortization Rate (as a percent)	2.50%	'
Old Line of Credit Facility [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt obligations	'	247,500,000
Senior Unsecured Credit Facility [Member]	'	'
Debt Instrument [Line Items]	'	'
Minimum required levels of assets under management	50,000,000,000	'
Minimum required levels of net worth	600,000,000	'
Senior Unsecured Credit Facility [Member] | 2.50% Debt, Term Loan Two [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt Instrument, Face Amount	250,000,000	'
Fixed interest rate as a result of interest rate swap (as a percent)	2.60%	'
Senior Unsecured Credit Facilities [Member] | Senior Unsecured Credit Facility [Member]	'	'
Debt Instrument [Line Items]	'	'
LIBOR margin (as a percent)	1.00%	'
Commitment fee payable on unused funds (as a percent)	0.13%	'
Senior Unsecured Credit Facilities [Member] | Revolving credit facility [Member]	'	'
Debt Instrument [Line Items]	'	'
Credit agreement	$500,000,000	'
Senior Unsecured Credit Facilities [Member] | Term Loan and Revolver [Member]	'	'
Debt Instrument [Line Items]	'	'
Line of Credit Facility, Term (in years)	'5 years	'
Numerator [Member] | Senior Unsecured Credit Facility [Member]	'	'
Debt Instrument [Line Items]	'	'
Maximum leverage ratio	3	'
Minimum fixed charge coverage ratio	2.5	'
Denominator [Member] | Senior Unsecured Credit Facility [Member]	'	'
Debt Instrument [Line Items]	'	'
Maximum leverage ratio	1	'
Minimum fixed charge coverage ratio	1	'

DEBT_OBLIGATIONS_AND_CREDIT_FA6

DEBT OBLIGATIONS AND CREDIT FACILITIES - Revolving Bank Credit Facilities and Term Loans Outstanding of Consolidated Funds (Detail) (Consolidated funds [Member])

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

USD ($)

USD ($)

Credit Facilities [Member]

Credit Facilities [Member]

Variable Rate Notes [Member]

Variable Rate Notes [Member]

Variable Rate Notes One [Member]

Variable Rate Notes One [Member]

Variable Rate Notes Two [Member]

Variable Rate Notes Two [Member]

Variable Rate Notes Three [Member]

Variable Rate Notes Three [Member]

Revolving Credit Facility Six [Member]

Revolving Credit Facility Six [Member]

Multi-currency term loan [Member]

Multi-currency term loan [Member]

Revolving credit facility [Member]

Revolving credit facility [Member]

Revolving credit facility 1 [Member]

Revolving credit facility 1 [Member]

Revolving Credit Facility Two [Member]

Revolving Credit Facility Two [Member]

Revolving credit facility 4 [Member]

Revolving credit facility 4 [Member]

Euro denominated revolving credit facility one [Member]

Euro denominated revolving credit facility one [Member]

Euro denominated revolving credit facility one [Member]

Revolving credit facility 3 [Member]

Revolving credit facility 3 [Member]

Revolving Credit Facility Five [Member]

Revolving Credit Facility Five [Member]

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

EUR (€)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Line of Credit Facility [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding amount

$2,028,178,000

$491,625,000

$289,000,000

[1],[2]

$63,000,000

[1],[2]

$249,500,000

[2]

$249,500,000

[2]

$498,814,000

[2]

$0

[2]

$402,364,000

[2]

$0

[2]

$64,500,000

[2]

$0

[2]

$300,000,000

$0

$0

[3]

$49,158,000

[3]

$0

$38,000,000

$125,000,000

$8,625,000

$9,000,000

$19,400,000

$0

$0

$0

'

$63,942,000

$0

$0

$90,000,000

$0

Facility capacity

'

'

$750,000,000

[1],[2]

'

$249,500,000

[2]

'

$500,000,000

[2]

'

$402,500,000

[2]

'

$64,500,000

[2]

'

$500,000,000

'

$275,000,000

[3]

'

$180,000,000

'

$125,000,000

'

$55,000,000

'

$40,000,000

'

'

€ 100,000,000

'

$10,000,000

'

$350,000,000

'

LIBOR margin (as a percent)

'

'

1.25%

[1],[2],[4]

'

1.55%

[2],[4]

'

1.20%

[2],[4]

'

1.20%

[2],[4]

'

1.65%

[2],[4]

'

1.60%

[4]

'

3.00%

[3],[4]

'

1.75%

[4]

'

1.75%

[4]

'

2.00%

[4]

'

1.50%

[4]

'

1.75%

[4]

1.75%

[4]

'

2.25%

[4]

'

1.65%

[4]

'

Maturity

'

'

28-Aug-15

[1],[2]

'

20-Oct-22

[2]

'

20-Apr-23

[2]

'

20-Jul-23

[2]

'

20-Jul-23

[2]

'

26-Jun-15

'

'

'

15-Dec-14

'

20-May-14

'

15-Dec-13

'

11-Dec-13

'

17-Dec-15

17-Dec-15

'

1-Sep-14

'

22-Mar-15

'

Commitment fee rate (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

0.25%

'

'

'

0.35%

'

0.35%

'

0.35%

'

0.30%

'

0.30%

0.30%

'

0.38%

'

0.25%

'

L/C fee

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2.00%

[5]

'

1.50%

[5]

'

2.00%

[5]

2.00%

[5]

'

'

'

'

'

[1]

Libor margin equals 1.25% through August 28, 2013 and 2.50% thereafter.

[2]

The credit facility is collateralized by the portfolio investments and cash and cash-equivalents of the fund.

[3]

The loan was fully repaid and terminated on September 20, 2013.

[4]

The facilities bear interest, at the borrower's option, at (a)B an annual rate of LIBOR plus the applicable margin or (b)B an alternate base rate, as defined in the respective credit agreement.

[5]

Certain facilities allow for the issuance of letters of credit at an applicable annual fee. As of September 30, 2013 and December 31, 2012, outstanding standby letters of credit totaled $63,545 and $76,975, respectively.

DEBT_OBLIGATIONS_AND_CREDIT_FA7

DEBT OBLIGATIONS AND CREDIT FACILITIES - Revolving Bank Credit Facilities and Term Loans Outstanding of Consolidated Funds (Parenthetical) (Detail) (Consolidated funds [Member], USD $)	Sep. 30, 2013		Dec. 31, 2012
In Thousands, unless otherwise specified
Letter of Credit [Member]	'		'
Line of Credit Facility [Line Items]	'		'
Outstanding amounts	$63,545		$76,975
Credit Facilities [Member]	'		'
Line of Credit Facility [Line Items]	'		'
LIBOR margin (as a percent)	1.25%	[1],[2],[3]	'
Future Rate [Domain] | Credit Facilities [Member]	'		'
Line of Credit Facility [Line Items]	'		'
LIBOR margin (as a percent)	2.50%		'
[1]	Libor margin equals 1.25% through August 28, 2013 and 2.50% thereafter.
[2]	The credit facility is collateralized by the portfolio investments and cash and cash-equivalents of the fund.
[3]	The facilities bear interest, at the borrower's option, at (a)B an annual rate of LIBOR plus the applicable margin or (b)B an alternate base rate, as defined in the respective credit agreement.

NONCONTROLLING_REDEEMABLE_INTE2

NON-CONTROLLING REDEEMABLE INTERESTS IN CONSOLIDATED FUNDS - Summary of Changes in Non-controlling Redeemable Interests in Consolidated Funds (Detail) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Non-Controlling Redeemable Interests in Consolidated Funds [Roll Forward]	'	'
Beginning balance	$39,670,831	$41,048,607
Contributions	4,613,588	4,948,480
Distributions	-10,033,373	-7,907,434
Net income	3,743,327	4,868,300
Change in distributions payable	234,409	125,741
Change in accrued or deferred contributions	3,525	41,000
Foreign currency translation and other	97,605	-21,152
Ending balance	$38,329,912	$43,103,542

UNITHOLDERS_CAPITAL_Additional

UNITHOLDERS' CAPITAL - Additional Information (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified
Class of Stock [Line Items]	'	'
OCGH non-controlling interest in consolidated subsidiaries	$1,117,830	$1,087,491
OCGH [Member]	'	'
Class of Stock [Line Items]	'	'
Shares, Issued	112,821,276	120,267,503
OCGH non-controlling interest in consolidated subsidiaries	1,117,830	1,087,491
Oaktree Operating Group [Member]	'	'
Class of Stock [Line Items]	'	'
Total Oaktree Operating Group units	151,060,717	150,448,436
OCGH non-controlling interest in consolidated subsidiaries	$1,496,709	$1,360,331

UNITHOLDERS_CAPITAL_Summary_of

UNITHOLDERS' CAPITAL - Summary of Net Income (Loss) (Detail) (USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Weighted average Oaktree Operating Group units outstanding (in thousands):	'		'		'		'
Weighted Average Number of Shares Outstanding, Basic and Diluted	38,239		30,181		33,845		27,494
Net income	$1,089,231		$2,214,302		$4,517,609		$5,316,195
Oaktree Operating Group net income (loss):	'		'		'		'
Net Income (Loss) Attributable to Noncontrolling Interest	-129,408	[1]	-119,235	[1]	-617,191	[1]	-379,356	[1]
Net income (loss) attributable to Oaktree Capital Group, LLC:	'		'		'		'
Income taxes	-726	[2]	-5,801	[2]	-18,874	[2]	-27,493	[2]
Net income attributable to Oaktree Capital Group, LLC	42,948		25,212		157,091		68,539
OCGH non-controlling interest [Member]	'		'		'		'
Weighted average Oaktree Operating Group units outstanding (in thousands):	'		'		'		'
Weighted Average Number of Shares Outstanding, Basic and Diluted	112,791		120,283		117,103		123,070
Net income	-129,408		-119,235		-617,191		-379,356
Class A Units [Member]	'		'		'		'
Weighted average Oaktree Operating Group units outstanding (in thousands):	'		'		'		'
Weighted Average Number of Shares Outstanding, Basic and Diluted	38,239		30,181		33,845		27,494
Net income	-43,875		-29,920		-172,631		-84,444
Oaktree Operating Group [Member]	'		'		'		'
Weighted average Oaktree Operating Group units outstanding (in thousands):	'		'		'		'
Weighted Average Number of Shares Outstanding, Basic and Diluted	151,030		150,464		150,948		150,564
Net income	-173,283		-149,155		-789,822		-463,800
Oaktree Capital Group, LLC [Member]	'		'		'		'
Oaktree Operating Group net income (loss):	'		'		'		'
Net Income (Loss) Attributable to Noncontrolling Interest	43,875		29,920		172,631		84,444
Net income (loss) attributable to Oaktree Capital Group, LLC:	'		'		'		'
Non-Operating Group other income	0		0		0		6,260
Expenses incurred by Non-Operating Group	-271		-115		-947		-393
Income taxes	-656		-4,593		-14,593		-21,772
Net income attributable to Oaktree Capital Group, LLC	$42,948		$25,212		$157,091		$68,539
[1]	Because adjusted net income is calculated at the Operating Group level, this adjustment adds back the effect of items applicable to OCG, its Intermediate Holding Companies or the OCGH non-controlling interest.
[2]	Because adjusted net income is a pre-tax measure, this adjustment eliminates the effect of income tax expense.

UNITHOLDERS_CAPITAL_Changes_in

UNITHOLDERS' CAPITAL - Changes in Company Ownership Interest (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Stockholders' Equity Note [Abstract]	'	'	'	'
Net income attributable to Oaktree Capital Group, LLC	$42,948	$25,212	$157,091	$68,539
Equity reallocation between controlling and non-controlling interests	-160	-74	76,685	69,101
Change from net income attributable to Oaktree Capital Group, LLC and transfers from (to) non-controlling interest	$42,788	$25,138	$233,776	$137,640

UNITHOLDERS_CAPITAL_Offering_D

UNITHOLDERS' CAPITAL - Offering (Details) (Class A Units [Member], USD $)	0 Months Ended	9 Months Ended
In Thousands, except Share data, unless otherwise specified	29-May-13	Sep. 30, 2013	Sep. 30, 2012
Class A Units [Member]	'	'	'
Class of Stock [Line Items]	'	'	'
Share Price (in dollars per share)	$53.50	'	'
Issuance of units, Shares	8,050,000	8,058,000	7,904,000
Proceeds from issuance of common stock	$419,900	'	'

EARNINGS_PER_UNIT_Computations

EARNINGS PER UNIT - Computations of Net Income (Loss) Per Unit (Detail) (USD $)	3 Months Ended				9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Weighted average units outstanding:	'		'		'		'
Weighted Average Number of Shares Outstanding, Basic	38,239		30,181		33,845		27,494
OCGH units exchangeable into Class A units	0	[1]	0	[1]	0	[1]	0	[1]
Total weighted average units outstanding	38,239		30,181		33,845		27,494
Net income per Class A unit:	'		'		'		'
Net income	$42,948		$25,212		$157,091		$68,539
Weighted average units outstanding	38,239		30,181		33,845		27,494
Basic and diluted net income per Class A unit	$1.12		$0.84		$4.64		$2.49
[1]	Vested OCGH units are potentially exchangeable on a one-for-one basis into ClassB A units. As of September 30, 2013, there were 112,821,276 OCGH units outstanding, accordingly, the Company may cumulatively issue up to 112,821,276 additional ClassB A units through AugustB 1, 2023 if all such units were exchanged. For all periods presented, OCGH units have been excluded from the calculation of diluted earnings per unit because the exchange of these units would proportionally increase Oaktree Capital Group, LLCbs interest in the Oaktree Operating Group and could have an anti-dilutive effect on earnings per unit to the extent that tax-related or other expenses were incurred by the Company as a result of the exchange.

EARNINGS_PER_UNIT_Computations1

EARNINGS PER UNIT - Computations of Net Income (Loss) Per Unit (Parenthetical) (Detail)	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Line Items]	'
OCGH units represented (in shares)	112,821,276
OCGH Units [Member]	'
Earnings Per Share [Line Items]	'
OCGH Issued (in shares)	112,821,276

EQUITYBASED_COMPENSATION_Addit

EQUITY-BASED COMPENSATION - Additional Information (Detail) (USD $)	9 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of units, Granted	763,000
Unrecognized compensation expense on non-vested equity-based awards	$107.50
Weighted average period of recognition non-vested equity-based awards (in years)	'5 years 2 months 12 days
OCGH Units [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of units, Granted	663,000
Fair Value Assumptions, Forfeiture Rate (as a percent)	1.50%
Deferred OCGH Units [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of units, Granted	100,000,000
Class A Units [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of units, Granted	8,508
Minimum [Member] | OCGH Units [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Discount from Market Price, Purchase Date (as a percent)	25.00%
Minimum [Member] | Restricted Unit Awards [Member] | OCGH Units [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Award Vesting Period (in years)	'5 years
Maximum [Member] | OCGH Units [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Discount from Market Price, Purchase Date (as a percent)	30.00%
Maximum [Member] | Deferred Unit Awards [Member] | OCGH Units [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Award Vesting Period (in years)	'10 years

EQUITYBASED_COMPENSATION_Summa

EQUITY-BASED COMPENSATION - Summary of Unvested Equity-Based Awards and Changes (Detail) (USD $)	9 Months Ended
	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]	'
Number of units, Granted	763,000
OCGH Units [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]	'
Number of units, Beginning Balance	4,902,348
Number of units, Granted	663,000
Number of units, Vested	-1,103,569
Number of units, Forfeited	-43,600
Number of units, Ending Balance	4,518,179
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]	'
Weighted average grant date fair value, Beginning Balance	28.17
Weighted average grant date fair value, Granted	34.6
Weighted average grant date fair value, Vested	23.8
Weighted average grant date fair value, Forfeited	30.05
Weighted average grant date fair value, Ending Balance	30.3
Class A Units [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]	'
Number of units, Beginning Balance	11,669
Number of units, Granted	8,508
Number of units, Vested	-3,069
Number of units, Forfeited	0
Number of units, Ending Balance	17,108
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]	'
Weighted average grant date fair value, Beginning Balance	41.91
Weighted average grant date fair value, Granted	47.83
Weighted average grant date fair value, Vested	39.4
Weighted average grant date fair value, Forfeited	0
Weighted average grant date fair value, Ending Balance	45.3

EQUITYBASED_COMPENSATION_Sched

EQUITY-BASED COMPENSATION - Schedule of Unvested Units Expected to Vest (Detail)	Sep. 30, 2013	Dec. 31, 2012
Class A Units [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	17,108	11,669
Weighted average remaining service term	'3 years 8 months 12 days	'
OCGH Units [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	4,518,179	4,902,348
Weighted average remaining service term	'5 years 2 months 12 days	'

INCOME_TAXES_AND_RELATED_PAYME1

INCOME TAXES AND RELATED PAYMENTS (Details) (USD $)	22-May-13	Sep. 30, 2013	Sep. 30, 2013
In Millions, unless otherwise specified	May 2013 Offering [Member]	Minimum [Member]	Maximum [Member]
Operating Loss Carryforwards [Line Items]	'	'	'
Unrecognized Tax Benefits, Decreases Resulting from Settlements with Taxing Authorities	'	$8	$10
Deferred Tax Asset Related to Unitholders under Tax Receivable Agreement	134.4	'	'
Liability Payments Under Tax Receivable Agreement	114.2	'	'
Adjustment to Unitholders' Equity Related to Tax Receivable Agreement	$20.20	'	'

COMMITMENTS_AND_CONTINGENCIES_

COMMITMENTS AND CONTINGENCIES - Additional Information (Detail)	9 Months Ended							9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013		Dec. 31, 2012	Sep. 30, 2013	Dec. 31, 2012	Dec. 20, 2012	Sep. 30, 2013
	USD ($)	USD ($)	Consolidated funds [Member]	Consolidated funds [Member]	Revolving credit facility [Member]		Revolving credit facility [Member]	Line of Credit [Member]	Line of Credit [Member]	Line of Credit [Member]	Euribor
			USD ($)	USD ($)	Consolidated funds [Member]		Consolidated funds [Member]	Revolving credit facility [Member]	Revolving credit facility [Member]	Revolving credit facility [Member]	Consolidated funds [Member]
					USD ($)		USD ($)	Consolidated funds [Member]	Consolidated funds [Member]	Consolidated funds [Member]
								USD ($)	USD ($)	GBP (£)
Contingencies And Commitments [Line Items]	'	'	'	'	'		'	'	'	'	'
Claims for damages	$800,000,000	'	'	'	'		'	'	'	'	'
Accrued incentives (fund level)	2,103,533,000	2,137,798,000	'	'	'		'	'	'	'	'
Compensation expense related to accrued incentives (fund level)	903,134,000	855,604,000	'	'	'		'	'	'	'	'
Capital commitments	291,945,000	265,401,000	'	'	'		'	'	'	'	'
Aggregate Potential Credit and Investment Commitments	'	'	1,137,348,000	912,001,000	'		'	'	'	'	'
Facility capacity	'	'	'	'	180,000,000		'	'	'	200,000,000	'
Line of Credit Facility, Contractual Term (in years)	'	'	'	'	'		'	'3 years	'	'	'
Commitment fee payable on unused funds (as a percent)	'	'	'	'	'		'	1.00%	'	'	'
Euribor margin (as a percent)	'	'	'	'	1.75%	[1]	'	'	'	'	2.00%
Borrowings under credit facilities	'	'	$2,028,178,000	$491,625,000	$0		$38,000,000	$121,200,000	$0	'	'
[1]	The facilities bear interest, at the borrower's option, at (a)B an annual rate of LIBOR plus the applicable margin or (b)B an alternate base rate, as defined in the respective credit agreement.

RELATEDPARTY_TRANSACTIONS_Amou

RELATED-PARTY TRANSACTIONS - Amounts Due from and Due to Affiliates (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Due from affiliates:	'	'
Loans	$41,450	$38,091
Amounts due from non-consolidated funds	868	661
Payments made on behalf of non-consolidated entities	3,229	3,444
Non-interest bearing advances made to certain non-controlling interest holders and employees	3,529	2,393
Total due from affiliates	49,076	44,589
Due to affiliates:	'	'
Due to OCGH unitholders in connection with the tax receivable agreement	249,200	134,953
Amounts due to principals, certain non-controlling interest holders and employees	1,090	1,212
Total due to affiliates	$250,290	$136,165

RELATEDPARTY_TRANSACTIONS_Addi

RELATED-PARTY TRANSACTIONS - Additional Information (Detail) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Related Party Transactions [Abstract]	'	'
Interest income	$1,283	$1,048

SEGMENT_REPORTING_Adjusted_Net

SEGMENT REPORTING - Adjusted Net Income (Detail) (USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Revenues:	'		'		'		'
Management fees	$56,786	[1]	$30,586	[1]	$149,422	[1]	$91,813	[1]
Incentive income	0	[1]	1,320	[1]	2,317	[1]	6,368	[1]
Investment income	11,468	[1]	8,298	[1]	22,600	[1]	17,683	[1]
Total revenues	56,786		31,906		151,739		98,181
Expenses:	'		'		'		'
Compensation and benefits	-95,660		-83,141		-279,638		-247,907
Equity-based compensation	-7,320		-7,498		-20,877		-27,482
Incentive income compensation	-49,222		-29,546		-308,446		-118,268
General and administrative	-31,094		-25,965		-80,227		-72,394
Depreciation and amortization	-1,791		-1,901		-5,266		-5,573
Total expenses	-214,158	[2]	-168,020	[3]	-775,203	[4]	-542,595	[5]
Interest expense, net of interest income (1)	-17,337	[6]	-10,789	[6]	-42,931	[6]	-33,639	[6]
Other income (expense), net	148		-59		412		8,534	[7]
Segment [Member]	'		'		'		'
Revenues:	'		'		'		'
Management fees	185,580	[1]	182,587	[1]	552,281	[1]	562,692	[1]
Incentive income	122,424	[1]	59,174	[1]	787,665	[1]	250,861	[1]
Investment income	53,558	[1]	62,801	[1]	170,184	[1]	150,382	[1]
Total revenues	361,562		304,562		1,510,130		963,935
Expenses:	'		'		'		'
Compensation and benefits	-95,561		-83,080		-279,344		-247,787
Equity-based compensation	-1,070		-128		-2,646		-128
Incentive income compensation	-49,222		-29,546		-308,446		-118,268
General and administrative	-27,389		-24,429		-80,889		-73,665
Depreciation and amortization	-1,791		-1,901		-5,266		-5,573
Total expenses	-175,033	[2]	-139,084	[3]	-676,591	[4]	-445,421	[5]
Adjusted net income before interest and other income (expense)	186,529		165,478		833,539		518,514
Interest expense, net of interest income (1)	-7,074	[6],[8]	-7,687	[6],[8]	-21,617	[6],[8]	-23,914	[6],[8]
Other income (expense), net	148		-59		412		2,274	[7]
Adjusted net income	$179,603		$157,732		$812,334		$496,874
[1]	The adjustment represents the elimination of amounts attributable to the consolidated funds.
[2]	The expense adjustment consists of (a)B equity-based compensation charges of $6,250 related to unit grants made before the Companybs initial public offering, (b)B consolidated fund expenses of $32,604 and (c)B expenses incurred by the Intermediate Holding Companies of $271.
[3]	The expense adjustment consists of (a)B equity-based compensation charges of $7,369 related to unit grants made before the Companybs initial public offering, (b)B consolidated fund expenses of $21,452 and (c)B expenses incurred by the Intermediate Holding Companies of $115.
[4]	The expense adjustment consists of (a)B equity-based compensation charges of $18,231 related to unit grants made before the Companybs initial public offering, (b)B consolidated fund expenses of $79,434 and (c)B expenses incurred by the Intermediate Holding Companies of $947.
[5]	The expense adjustment consists of (a)B equity-based compensation charges of $27,353 related to unit grants made before the Companybs initial public offering, (b)B consolidated fund expenses of $69,428 and (c)B expenses incurred by the Intermediate Holding Companies of $393.
[6]	The interest expense adjustment represents the inclusion of interest expense attributable to non-controlling interests of the consolidated funds and the exclusion of segment interest income.
[7]	The other income, net adjustment represents other income or expenses of OCG or its Intermediate Holding Companies. This amount is attributable to a reduction in the amount of the deferred tax asset under the tax receivable agreement associated with the 2007 Private Offering, which reduced the tax receivable agreement liability payable to OCGH unitholders.
[8]	Interest income was $0.9 million and $0.8 million for the three months ended September 30, 2013 and 2012, respectively, and $2.4 million and $1.9 million for the nine months ended September 30, 2013 and 2012, respectively.

SEGMENT_REPORTING_Adjusted_Net1

SEGMENT REPORTING - Adjusted Net Income (Parenthetical) (Detail) (Segment [Member], USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment [Member]	'	'	'	'
Segment Reporting, Asset Reconciling Item [Line Items]	'	'	'	'
Interest income	$0.90	$0.80	$2.40	$1.90

SEGMENT_REPORTING_Reconciliati

SEGMENT REPORTING - Reconciliation of Net Income (Loss) Attributable to Oaktree Capital Group, LLC to Adjusted Net Income (Detail) (USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Segment Reporting Information [Line Items]	'		'		'		'
Net income attributable to Oaktree Capital Group, LLC	$42,948		$25,212		$157,091		$68,539
Equity-based compensation	7,320		7,498		20,877		27,482
Income taxes	726	[1]	5,801	[1]	18,874	[1]	27,493	[1]
Non-Operating Group other income	'	[2]	'	[2]	'	[2]	-6,260	[2]
Non-Operating Group expenses	271	[2]	115	[2]	947	[2]	393	[2]
OCGH non-controlling interest	129,408	[2]	119,235	[2]	617,191	[2]	379,356	[2]
Ocgh Units Prior to Initial Public Offering in April 2012 [Member]	'		'		'		'
Segment Reporting Information [Line Items]	'		'		'		'
Equity-based compensation	6,250	[3]	7,369	[3]	18,231	[3]	27,353	[3]
Investment Management [Member]	'		'		'		'
Segment Reporting Information [Line Items]	'		'		'		'
Net income attributable to Oaktree Capital Group, LLC	179,603		157,732		812,334		496,874
Equity-based compensation	1,070		128		2,646		128
Income taxes	0		0		0		0
OCGH non-controlling interest	0		0		0		0
Adjusted net income	$179,603		$157,732		$812,334		$496,874
[1]	Because adjusted net income is a pre-tax measure, this adjustment eliminates the effect of income tax expense.
[2]	Because adjusted net income is calculated at the Operating Group level, this adjustment adds back the effect of items applicable to OCG, its Intermediate Holding Companies or the OCGH non-controlling interest.
[3]	This adjustment adds back the effect of equity-based compensation charges related to unit grants made before the Companybs initial public offering, which is excluded from adjusted net income because it is a non-cash charge that does not affect the Company's financial position.

SEGMENT_REPORTING_Schedule_of_

SEGMENT REPORTING - Schedule of Reconciliation of Total Segments to Income Loss Attributable to Oaktree Capital Group, LLC and Total Assets (Detail) (USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012		Dec. 31, 2012
Segment Reporting, Asset Reconciling Item [Line Items]	'		'		'		'		'
Management fees	$56,786	[1]	$30,586	[1]	$149,422	[1]	$91,813	[1]	'
Incentive income	0	[1]	1,320	[1]	2,317	[1]	6,368	[1]	'
Investment income	11,468	[1]	8,298	[1]	22,600	[1]	17,683	[1]	'
Total expenses	-214,158	[2]	-168,020	[3]	-775,203	[4]	-542,595	[5]	'
Interest expense, net of interest income (1)	-17,337	[6]	-10,789	[6]	-42,931	[6]	-33,639	[6]	'
Other income (expense), net	148		-59		412		8,534	[7]	'
Other income of consolidated funds	1,253,050	[8]	2,358,767	[9]	5,179,866	[8]	5,795,524	[8]	'
Income taxes	-726	[10]	-5,801	[10]	-18,874	[10]	-27,493	[10]	'
Net income attributable to non-controlling redeemable interests in consolidated funds	-916,875		-2,069,855		-3,743,327		-4,868,300		'
Net income attributable to OCGH non-controlling interest in consolidated subsidiaries	-129,408	[11]	-119,235	[11]	-617,191	[11]	-379,356	[11]	'
Net income attributable to Oaktree Capital Group, LLC	42,948		25,212		157,091		68,539		'
Corporate investments, at equity	90,680	[12]	128,622	[12],[9]	90,680	[12]	128,622	[12],[9]	98,950
Total assets	44,701,181	[13]	46,809,327	[13]	44,701,181	[13]	46,809,327	[13]	43,869,998
Segment [Member]	'		'		'		'		'
Segment Reporting, Asset Reconciling Item [Line Items]	'		'		'		'		'
Management fees	185,580	[1]	182,587	[1]	552,281	[1]	562,692	[1]	'
Incentive income	122,424	[1]	59,174	[1]	787,665	[1]	250,861	[1]	'
Investment income	53,558	[1]	62,801	[1]	170,184	[1]	150,382	[1]	'
Total expenses	-175,033	[2]	-139,084	[3]	-676,591	[4]	-445,421	[5]	'
Interest expense, net of interest income (1)	-7,074	[14],[6]	-7,687	[14],[6]	-21,617	[14],[6]	-23,914	[14],[6]	'
Other income (expense), net	148		-59		412		2,274	[7]	'
Other income of consolidated funds	0	[8]	0	[9]	0	[8]	0	[8]	'
Income taxes	0		0		0		0		'
Net income attributable to non-controlling redeemable interests in consolidated funds	0		0		0		0		'
Net income attributable to OCGH non-controlling interest in consolidated subsidiaries	0		0		0		0		'
Net income attributable to Oaktree Capital Group, LLC	179,603		157,732		812,334		496,874		'
Corporate investments, at equity	1,100,500	[12]	1,236,710	[12],[9]	1,100,500	[12]	1,236,710	[12],[9]	'
Total assets	2,649,360	[13]	2,266,488	[13]	2,649,360	[13]	2,266,488	[13]	'
Adjustments [Member]	'		'		'		'		'
Segment Reporting, Asset Reconciling Item [Line Items]	'		'		'		'		'
Management fees	-128,794	[1]	-152,001	[1]	-402,859	[1]	-470,879	[1]	'
Incentive income	-122,424	[1]	-57,854	[1]	-785,348	[1]	-244,493	[1]	'
Investment income	-42,090	[1]	-54,503	[1]	-147,584	[1]	-132,699	[1]	'
Total expenses	-39,125	[2]	-28,936	[3]	-98,612	[4]	-97,174	[5]	'
Interest expense, net of interest income (1)	-10,263	[6]	-3,102	[6]	-21,314	[6]	-9,725	[6]	'
Other income (expense), net	0		0		0		6,260	[7]	'
Other income of consolidated funds	1,253,050	[8]	2,358,767	[9]	5,179,866	[8]	5,795,524	[8]	'
Income taxes	-726		-5,801		-18,874		-27,493		'
Net income attributable to non-controlling redeemable interests in consolidated funds	-916,875		-2,069,855		-3,743,327		-4,868,300		'
Net income attributable to OCGH non-controlling interest in consolidated subsidiaries	-129,408		-119,235		-617,191		-379,356		'
Net income attributable to Oaktree Capital Group, LLC	-136,655		-132,520		-655,243		-428,335		'
Corporate investments, at equity	-1,009,820	[12]	-1,108,088	[12],[9]	-1,009,820	[12]	-1,108,088	[12],[9]	'
Total assets	$42,051,821	[13]	$44,542,839	[13]	$42,051,821	[13]	$44,542,839	[13]	'
[1]	The adjustment represents the elimination of amounts attributable to the consolidated funds.
[2]	The expense adjustment consists of (a)B equity-based compensation charges of $6,250 related to unit grants made before the Companybs initial public offering, (b)B consolidated fund expenses of $32,604 and (c)B expenses incurred by the Intermediate Holding Companies of $271.
[3]	The expense adjustment consists of (a)B equity-based compensation charges of $7,369 related to unit grants made before the Companybs initial public offering, (b)B consolidated fund expenses of $21,452 and (c)B expenses incurred by the Intermediate Holding Companies of $115.
[4]	The expense adjustment consists of (a)B equity-based compensation charges of $18,231 related to unit grants made before the Companybs initial public offering, (b)B consolidated fund expenses of $79,434 and (c)B expenses incurred by the Intermediate Holding Companies of $947.
[5]	The expense adjustment consists of (a)B equity-based compensation charges of $27,353 related to unit grants made before the Companybs initial public offering, (b)B consolidated fund expenses of $69,428 and (c)B expenses incurred by the Intermediate Holding Companies of $393.
[6]	The interest expense adjustment represents the inclusion of interest expense attributable to non-controlling interests of the consolidated funds and the exclusion of segment interest income.
[7]	The other income, net adjustment represents other income or expenses of OCG or its Intermediate Holding Companies. This amount is attributable to a reduction in the amount of the deferred tax asset under the tax receivable agreement associated with the 2007 Private Offering, which reduced the tax receivable agreement liability payable to OCGH unitholders.
[8]	The adjustment to other income of consolidated funds primarily represents the inclusion of interest, dividend and other investment income attributable to non-controlling interests of the consolidated funds.
[9]	The adjustment to corporate investments is to remove from segment assets the consolidated funds that are treated as equity method investments for segment reporting purposes
[10]	Because adjusted net income is a pre-tax measure, this adjustment eliminates the effect of income tax expense.
[11]	Because adjusted net income is calculated at the Operating Group level, this adjustment adds back the effect of items applicable to OCG, its Intermediate Holding Companies or the OCGH non-controlling interest.
[12]	The adjustment to corporate investments is to remove from segment assets the consolidated funds that are treated as equity method investments for segment reporting purposes.
[13]	The total assets adjustment represents the inclusion of investments and other assets of the consolidated funds, net of segment assets eliminated in consolidation, which are primarily corporate investments in funds and incentive income receivable.
[14]	Interest income was $0.9 million and $0.8 million for the three months ended September 30, 2013 and 2012, respectively, and $2.4 million and $1.9 million for the nine months ended September 30, 2013 and 2012, respectively.

SEGMENT_REPORTING_Schedule_of_1

SEGMENT REPORTING - Schedule of Reconciliation of Total Segments to Income Loss Attributable to Oaktree Capital Group, LLC and Total Assets (Parenthetical) (Detail) (USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Segment Reporting, Asset Reconciling Item [Line Items]	'		'		'		'
Equity-based compensation	$7,320		$7,498		$20,877		$27,482
Consolidated fund expenses	32,604		21,452		79,434		69,428
Non Operating Group Expenses	271		115		947		393
Ocgh Units Prior to Initial Public Offering in April 2012 [Member]	'		'		'		'
Segment Reporting, Asset Reconciling Item [Line Items]	'		'		'		'
Equity-based compensation	$6,250	[1]	$7,369	[1]	$18,231	[1]	$27,353	[1]
[1]	This adjustment adds back the effect of equity-based compensation charges related to unit grants made before the Companybs initial public offering, which is excluded from adjusted net income because it is a non-cash charge that does not affect the Company's financial position.

SUBSEQUENT_EVENTS_Additional_I

SUBSEQUENT EVENTS - Additional Information (Detail) (Class A Units [Member], Subsequent Event [Member], USD $)	Nov. 01, 2013
Class A Units [Member] | Subsequent Event [Member]	'
Class of Stock [Line Items]	'
Dividend declared (in dollars per share)	$0.74