Sculptor Capital Management (SCU) 10-Q 5 Nov 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2013	Oct. 15, 2013	Oct. 15, 2013
		Class A Shares [Member]	Class B Shares [Member]
Document 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	'OZM	'	'
Entity Registrant Name	'Och-Ziff Capital Management Group LLC	'	'
Entity Central Index Key	'0001403256	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Filer Category	'Large Accelerated Filer	'	'
Entity Common Stock, Shares Outstanding	'	159,780,374	301,884,116

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Assets	'	'
Cash and cash equivalents	$283,241	$162,485
Income and fees receivable	64,735	593,504
Due from related parties	2,779	3,147
Deferred income tax assets	937,876	920,877
Other assets, net	95,720	72,238
Assets of consolidated Och-Ziff funds:	'	'
Investments, at fair value	1,963,768	1,744,626
Other assets of Och-Ziff funds	51,907	38,188
Total Assets	3,400,026	3,535,065
Liabilities	'	'
Due to related parties	787,694	741,773
Debt obligations	385,140	388,043
Compensation payable	15,237	210,055
Other liabilities	180,666	119,529
Liabilities of consolidated Och-Ziff funds:	'	'
Securities sold under agreements to repurchase	301,778	223,543
Other liabilities of Och-Ziff funds	20,899	3,538
Total Liabilities	1,691,414	1,686,481
Commitments and Contingencies (Note 13)	'	'
Shareholders' Equity	'	'
Paid-in capital	2,947,269	2,900,109
Accumulated deficit	-3,274,384	-3,150,644
Shareholders' deficit attributable to Class A Shareholders	-327,115	-250,535
Shareholders' equity attributable to noncontrolling interests	2,035,727	2,099,119
Total Shareholders' Equity	1,708,612	1,848,584
Total Liabilities and Shareholders' Equity	3,400,026	3,535,065
Class A Shares [Member]	'	'
Shareholders' Equity	'	'
Common stock value	'	'
Class B Shares [Member]	'	'
Shareholders' Equity	'	'
Common stock value	'	'

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Class A Shares [Member]	'	'
Common stock, no par value (in dollars per share)	'	'
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	159,554,643	147,689,919
Common stock, shares outstanding	159,554,643	147,689,919
Class B Shares [Member]	'	'
Common stock, no par value (in dollars per share)	'	'
Common stock, shares authorized	750,000,000	750,000,000
Common stock, shares issued	301,884,116	281,886,394
Common stock, shares outstanding	301,884,116	281,886,394

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Loss) (USD $)	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
Revenues	'	'	'	'
Management fees	$143,518	$125,896	$413,427	$375,470
Incentive income	72,338	8,081	195,403	27,716
Other revenues	203	291	1,386	875
Income of consolidated Och-Ziff funds	40,812	33,705	124,861	83,258
Total Revenues	256,871	167,973	735,077	487,319
Expenses	'	'	'	'
Compensation and benefits	68,238	44,934	188,936	127,125
Reorganization expenses	4,022	398,503	12,064	1,195,335
Interest expense	1,827	1,793	5,292	4,248
General, administrative and other	36,387	30,642	115,983	91,842
Expenses of consolidated Och-Ziff funds	4,296	2,268	12,158	7,319
Total Expenses	114,770	478,140	334,433	1,425,869
Other Income	'	'	'	'
Net gains on investments in Och-Ziff funds and joint ventures	531	317	1,253	29
Change in deferred income of consolidated Och-Ziff funds	-12,942	-16,450	-51,242	-38,877
Net gains of consolidated Och-Ziff funds	30,733	56,286	169,750	141,562
Total Other Income	18,322	40,153	119,761	102,714
Income (Loss) Before Income Taxes	160,423	-270,014	520,405	-835,836
Income taxes	14,786	19,127	49,803	46,022
Consolidated Net Income (Loss)	145,637	-289,141	470,602	-881,858
Other Comprehensive Income, Net of Tax	'	'	'	'
Foreign currency translation adjustment	'	'	'	229
Total Comprehensive Income (Loss)	145,637	-289,141	470,602	-881,629
Allocation of Consolidated Net Income (Loss)	'	'	'	'
Class A Shareholders	24,895	-127,509	55,861	-366,495
Noncontrolling interests	120,742	-161,632	414,741	-515,363
Consolidated Net Income (Loss)	145,637	-289,141	470,602	-881,858
Allocation of Total Comprehensive Income (Loss)	'	'	'	'
Class A Shareholders	24,895	-127,509	55,861	-366,446
Noncontrolling interests	120,742	-161,632	414,741	-515,183
Total comprehensive Income (Loss)	$145,637	($289,141)	$470,602	($881,629)
Earnings (Loss) Per Class A Share	'	'	'	'
Basic	$0.16	($0.89)	$0.36	($2.58)
Diluted	$0.14	($0.89)	$0.36	($2.58)
Weighted-Average Class A Shares Outstanding	'	'	'	'
Basic	156,752,496	143,477,776	153,160,992	142,036,892
Diluted	475,281,312	143,477,776	156,667,500	142,036,892
Dividends Paid per Class A Share	$0.14	$0.14	$1.17	$0.28

Consolidated_Statement_of_Chan

Consolidated Statement of Changes in Shareholders' Equity (USD $)	Total	Paid-in Capital [Member]	Accumulated Deficit [Member]	Shareholders' Deficit Attributable to Class A Shareholders [Member]	Shareholders' Equity Attributable to Noncontrolling Interests [Member]		Class A Shares [Member]	Class A Shares [Member]	Class B Shares [Member]	Class B Shares [Member]
In Thousands, except Share data	USD ($)	USD ($)	USD ($)	USD ($)	USD ($)			Common stock [Member]		Common stock [Member]
Balance, Values at Dec. 31, 2012	$1,848,584	$2,900,109	($3,150,644)	($250,535)	$2,099,119		'	'	'	'
Balance, Shares at Dec. 31, 2012	'	'	'	'	'		147,689,919	147,689,919	281,886,394	281,886,394
Capital contributions	382,627	'	'	'	382,627		'	'	'	'
Capital distributions	-933,575	'	'	'	-933,575		'	'	'	'
Cash dividends declared on Class A Shares	-173,963	'	-173,963	-173,963	'		'	'	'	'
Dividend equivalents on Class A restricted share units	'	5,638	-5,638	'	0	[1]	'	'	'	'
Equity-based compensation, Values	93,983	32,724	'	32,724	61,259		'	'	'	'
Equity-based compensation, Shares	'	'	'	'	'		'	864,724	'	19,997,722
Och-Ziff Operating Group A Unit Transactions (See Note 3), Value	8,290	4,797	'	4,797	3,493		'	'	'	'
Och-Ziff Operating Group A Unit Transactions (See Note 3), Shares	'	'	'	'	'		11,000,000	11,000,000	'	'
Impact of amortization of Reorganization charges on capital	12,064	4,001	'	4,001	8,063		'	'	'	'
Total comprehensive income	470,602	'	55,861	55,861	414,741		'	'	'	'
Balance, Values at Sep. 30, 2013	$1,708,612	$2,947,269	($3,274,384)	($327,115)	$2,035,727		'	'	'	'
Balance, Shares at Sep. 30, 2013	'	'	'	'	'		159,554,643	159,554,643	301,884,116	301,884,116
[1]	The dividend equivalents on Class A restricted share units impacted noncontrolling interests by increasing the paid-in capital component and a corresponding offsetting increase in the accumulated deficit component of noncontrolling interests, each by $11.4 million.

Consolidated_Statement_of_Chan1

Consolidated Statement of Changes in Shareholders' Equity (Parenthetical) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013
Statement Of Stockholders Equity [Abstract]	'
Impact of dividend equivalents on Class A restricted share units on the paid-in capital component and accumulated deficit component of noncontrolling interests	$11.40

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Cash Flows from Operating Activities	'	'
Consolidated Net Income (Loss)	$470,602	($881,858)
Adjustments to reconcile consolidated net income (loss) to net cash provided by (used in) operating activities:	'	'
Reorganization expenses	12,064	1,195,335
Amortization of equity-based compensation	99,426	50,294
Depreciation and amortization	6,344	7,085
Deferred income taxes	38,054	36,827
Operating cash flows due to changes in:	'	'
Income and fees receivable	528,769	40,941
Due from related parties	368	487
Other assets, net	-12,135	8,111
Assets of consolidated Och-Ziff funds	-232,861	-631,547
Due to related parties	-1,054	-1,570
Compensation payable	-194,818	-92,952
Other liabilities	62,465	38,177
Liabilities of consolidated Och-Ziff funds	95,596	82,546
Net Cash Provided by (Used in) Operating Activities	872,820	-148,124
Cash Flows from Investing Activities	'	'
Investment in Och-Ziff CLO	-15,000	'
Investments in joint ventures	-4,241	-3,520
Return of investments in joint ventures	3,990	2,575
Purchases of fixed assets	-2,864	-480
Cash acquired on consolidation of joint venture	'	299
Net Cash Used in Investing Activities	-18,115	-1,126
Cash Flows from Financing Activities	'	'
Contributions from noncontrolling interests	382,627	446,073
Distributions to noncontrolling interests	-933,575	-221,553
Proceeds from Delayed Draw Term Loan	'	384,500
Repayments of debt obligations	-2,903	-379,170
Dividends on Class A Shares	-173,963	-39,433
Withholding taxes paid on vested Class A restricted share units	-5,474	-4,216
Principal payments under capital lease obligations	-661	-629
Net Cash Provided by (Used in) Financing Activities	-733,949	185,572
Net Change in Cash and Cash Equivalents	120,756	36,322
Cash and Cash Equivalents, Beginning of Period	162,485	149,011
Cash and Cash Equivalents, End of Period	283,241	185,333
Cash paid during the period:	'	'
Interest	5,089	3,870
Income taxes	$12,331	$9,916

Overview

Overview	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Overview	'
	1	OVERVIEW
	Och-Ziff Capital Management Group LLC (the “Registrant”), a Delaware limited liability company, together with its consolidated subsidiaries (collectively, the “Company”), is a global alternative asset management firm with offices in New York, London, Hong Kong, Mumbai, Beijing and Dubai. The Company provides asset management services to its investment funds (the “Och-Ziff funds” or the “funds”), which pursue a broad range of global investment opportunities. The Company currently manages multi-strategy funds, credit funds, collateralized loan obligations (“CLOs”), real estate funds and other alternative investment vehicles.
	The Company’s primary sources of revenues are management fees, which are based on the amount of the Company’s assets under management, and incentive income, which is based on the investment performance of its funds. Accordingly, for any given period, the Company’s revenues will be driven by the combination of assets under management and the investment performance of the Och-Ziff funds.
	The Company conducts substantially all of its operations through its one reportable segment, the Och-Ziff Funds segment, which provides asset management services to its multi-strategy funds, credit funds, CLOs and other alternative investment vehicles. The Company’s Other Operations are primarily comprised of its real estate business, which provides asset management services to its real estate funds. The businesses included in the Company’s Other Operations do not meet the thresholds of reportable business segments under U.S. generally accepted accounting principles (“GAAP”).
	The Company generates substantially all of its revenues in the United States. The liability of the Company’s Class A Shareholders is limited to the extent of their capital contributions.
	References to the Company’s “executive managing directors” refer to the current limited partners of OZ Management LP, OZ Advisors LP and OZ Advisors II LP (collectively with their consolidated subsidiaries, the “Och-Ziff Operating Group”) other than the Ziffs and the Company’s intermediate holding companies, and include the Company’s founder, Mr. Daniel S. Och, except where the context requires otherwise. The Company conducts substantially all of its operations through the Och-Ziff Operating Group. References to the “Ziffs” refer collectively to Ziff Investors Partnership, L.P. II and certain of its affiliates and control persons. References to the Company’s “intermediate holding companies” refer, collectively, to Och-Ziff Holding Corporation (“Och-Ziff Corp”) and Och-Ziff Holding LLC, both of which are wholly owned subsidiaries of the Registrant.

Basis_of_Presentation_and_Summ

Basis of Presentation and Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Basis of Presentation and Summary of Significant Accounting Policies	'
	2	BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	Basis of Presentation
	These unaudited, interim, consolidated financial statements are prepared in accordance with GAAP as set forth in the Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification (“ASC”), and should be read in conjunction with the audited consolidated financial statements included in the Company’s annual report on Form 10-K for the year ended December 31, 2012. In the opinion of management, all adjustments considered necessary for a fair presentation of the Company’s unaudited, interim, consolidated financial statements have been included and are of a normal and recurring nature. The results of operations presented for the interim periods are not necessarily indicative of the results that may be expected for any other interim period or for the entire year, primarily because of the majority of incentive income and discretionary cash bonuses being recorded in the fourth quarter each year. All significant intercompany transactions and balances have been eliminated in consolidation.
	Recently Adopted Accounting Pronouncements
	In December 2011, the FASB issued ASU 2011-11, Disclosures about Offsetting Assets and Liabilities. ASU 2011-11, as clarified by ASC 2013-01, Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities, requires entities to disclose both gross and net information about derivative instruments, repurchase and reverse-repurchase agreements, and securities borrowing and lending transactions that are either (i) offset in the balance sheet, or (ii) subject to an enforceable master netting arrangement or similar arrangement, irrespective of whether they are offset in the balance sheet. In addition, ASU 2011-11 requires disclosure of collateral received and posted in connection with master netting agreements or similar arrangements. The requirements of ASU 2011-11 were effective for the Company beginning in the first quarter of 2013. The adoption of ASU 2011-11 did not have any impact on the Company’s financial position or results of operations, as ASU 2011-11 only affects disclosures about offsetting. No changes were made to the existing guidance on the offsetting of assets and liabilities in the Company’s balance sheet.
	In February 2013, the FASB issued ASU 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. ASU 2013-02 requires entities to present significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income only if the amount is required to be reclassified to net income in its entirety within the same reporting period. For other amounts that are not required to be reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures required that provide additional detail about those amounts. The requirements of ASU 2013-02 were effective for the Company beginning in the first quarter of 2013. The adoption of ASU 2013-02 did not have any impact on the Company’s financial position or results of operations.
	Future Adoption of Accounting Pronouncements
	In June 2013, the FASB issued ASU 2013-08, Financial Services—Investment Companies. ASU 2013-08 provides clarifying guidance to determine if an entity qualifies as an investment company. ASU 2013-08 also requires an investment company to measure noncontrolling interests in other investment companies at fair value. The following disclosures will also be required upon adoption of ASU 2013-08: (i) whether an entity is an investment company and is applying the accounting and reporting guidance for investment companies; (ii) information about changes, if any, in an entity’s status as an investment company; and (iii) information about financial support provided or contractually required to be provided by an investment company to any of its investees. The requirements of ASU 2013-08 are effective for the Company beginning in the first quarter of 2014. The Company is currently evaluating the impact, if any, that these updates will have on its financial condition or results of operations.

Noncontrolling_Interests

Noncontrolling Interests	9 Months Ended
	Sep. 30, 2013
Noncontrolling Interest [Abstract]	'
Noncontrolling Interests	'
	3	NONCONTROLLING INTERESTS
	Noncontrolling interests represent ownership interests in the Company’s subsidiaries held by parties other than the Company, and are primarily made up of Och-Ziff Operating Group A Units held by the Company’s executive managing directors and the Ziffs, and fund investors’ interests in the consolidated Och-Ziff funds. Increases or decreases in net income (loss) allocated to the Och-Ziff Operating Group A Units are driven by the earnings or losses of the Och-Ziff Operating Group. Increases or decreases in the net income (loss) allocated to fund investors’ interests in consolidated Och-Ziff funds are driven by the earnings or losses of those funds.
	The following table presents the components of the net income (loss) allocated to noncontrolling interests:
			Three Months Ended September 30,						Nine Months Ended September 30,
			2013			2012			2013		2012
			(dollars in thousands)
	Och-Ziff Operating Group A Units		$	69,089		$	(231,234	)	$	192,362	$	(689,883	)
	Consolidated Och-Ziff funds			51,243			69,010			220,836		173,146
	Other			410			592			1,543		1,374
			$	120,742		$	(161,632	)	$	414,741	$	(515,363	)
	Och-Ziff Operating Group Ownership
	On November 19, 2007, the Company completed its initial public offering (“IPO”) of 36,000,000 Class A Shares and a private offering of 38,138,571 Class A Shares to DIC Sahir, a wholly owned subsidiary of Dubai International Capital LLC (collectively, the “2007 Offerings”). The Company used the net proceeds from the 2007 Offerings to acquire a 19.2% interest in the Och-Ziff Operating Group from the Company’s executive managing directors and the Ziffs, who collectively held all of the interests in the Och-Ziff Operating Group prior to the 2007 Offerings. The Company’s interest in the Och-Ziff Operating Group increased to 34.0% as of September 30, 2013.
	Increases in the Company’s interest in the Och-Ziff Operating Group were driven by the issuance of 33,333,333 Class A Shares in a public offering in November 2011 (the “2011 Offering”). Additionally, the exchange of Och-Ziff Operating Group A Units for an equal number of Class A Shares (“Och-Ziff Operating Group A Unit Transactions”) and the issuance of Class A Shares under the Company’s Amended and Restated 2007 Equity Incentive Plan, primarily related to the vesting of Class A restricted share units (“RSUs”), also increased the Company’s interest in the Och-Ziff Operating Group. In the future, the Company expects to issue additional Class A Shares under its 2013 Incentive Plan. The Company’s interest in the Och-Ziff Operating Group is expected to continue to increase over time as additional Class A Shares are issued upon the exchange of Och-Ziff Operating Group A Units and vesting of RSUs. These increases will be offset upon the conversion of Och-Ziff Operating Group D Units, which are not considered equity for GAAP purposes, into Och-Ziff Operating Group A Units.
	Och-Ziff Operating Group A Unit Transactions
	During the first nine months of 2013, the Company issued 11,000,000 Class A Shares in connection with the Ziffs’ exchange of an equal number of Och-Ziff Operating Group A Units. As a result, the Company recorded the following changes to shareholders’ equity:
			Nine Months Ended
			30-Sep-13
			Paid-in			Noncontrolling
			Capital			Interests
			(dollars in thousands)
	Deferred income tax assets resulting from exchanges, net of increases in the tax receivable agreement liability		$	8,290		$	—
	Deficit capital reallocated from noncontrolling interests to the Company’s paid-in capital			(3,493	)		3,493
			$	4,797		$	3,493

Fair_Value_Disclosures

Fair Value Disclosures	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Fair Value Disclosures	'
	4	FAIR VALUE DISCLOSURES
	Fair value represents the price that would be received upon the sale of an asset or paid to transfer a liability in an orderly transaction between market participants as of the measurement date (i.e., an exit price). Due to the inherent uncertainty of valuations of investments that are determined to be illiquid or do not have readily ascertainable fair values, the estimates of fair value may differ from the values ultimately realized, and those differences can be material.
	GAAP prioritizes the level of market price observability used in measuring assets and liabilities at fair value. Market price observability is impacted by a number of factors, including the type of assets and liabilities and the specific characteristics of the assets and liabilities. Assets and liabilities with readily available, actively quoted prices or for which fair value can be measured from actively-quoted prices generally will have a higher degree of market price observability and lesser degree of judgment used in measuring fair value.
	Assets and liabilities measured at fair value are classified into one of the following categories:
		•		Level I – Fair value is determined using quoted prices that are available in active markets for identical assets or liabilities. The types of assets and liabilities that would generally be included in this category are certain listed equities, sovereign debt of developed nations and listed derivatives.
		•		Level II – Fair value is determined using quotations received from dealers making a market for these assets or liabilities (“broker quotes”), valuations obtained from independent third-party pricing services, the use of models or other valuation methodologies based on pricing inputs that are either directly or indirectly market observable as of the measurement date. Consideration is given to the nature of the broker quotes (e.g., indicative or executable). Assets and liabilities for which executable broker quotes are significant inputs in determining the fair value of an asset or liability are included within Level II. The types of assets and liabilities that would generally be included in this category are certain corporate bonds, certain credit default swap contracts, certain bank debt securities, certain commercial real estate debt, less liquid and restricted equity securities, forward contracts and certain over the-counter (“OTC”) derivatives.
		•		Level III – Fair value is determined using pricing inputs that are unobservable in the market and includes situations where there is little, if any, market activity for the asset or liability. The fair value of assets and liabilities in this category may require significant judgment or estimation in determining fair value of the assets or liabilities. The fair value of these assets and liabilities may be estimated using a combination of observed transaction prices, independent pricing services, relevant broker quotes, models or other valuation methodologies based on pricing inputs that are neither directly or indirectly market observable. Assets and liabilities for which indicative broker quotes are significant inputs in determining the fair value of an asset or liability are included within Level III. The types of assets and liabilities that would generally be included in this category include real estate investments, equity and debt securities issued by private entities, limited partnerships, certain corporate bonds, certain credit default swap contracts, certain bank debt securities, certain commercial real estate debt, certain OTC derivatives, residential and commercial mortgage-backed securities, asset-backed securities and collateralized debt obligations.
	In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an asset or liability’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability.
	Fair Value Measurements Categorized within the Fair Value Hierarchy
	The following table summarizes the Company’s assets and liabilities measured at fair value on a recurring basis within the fair value hierarchy:
			As of September 30, 2013
			Level I			Level II			Level III			Counterparty Netting			Total
												of Derivative Contracts
			(dollars in thousands)
	Real estate investments		$	—		$	—		$	632,150		$	—		$	632,150
	Residential mortgage-backed securities			197			—			358,519			—			358,716
	Collateralized debt obligations			—			—			247,382			—			247,382
	Energy and natural resources limited partnerships			—			—			164,687			—			164,687
	Investments in affiliated funds			—			—			155,736			—			155,736
	United States government obligations			154,978			—			—			—			154,978
	Commercial real estate debt			—			—			130,723			—			130,723
	Asset-backed securities			—			—			37,769			—			37,769
	Common and preferred stock			—			—			34,309			—			34,309
	Commercial mortgage-backed securities			—			—			29,836			—			29,836
	Bank debt			—			—			15,424			—			15,424
	Other investments			80			64			2,768			(854	)		2,058
	Financial Assets, at Fair Value, Included Within Investments, at Fair Value		$	155,255		$	64		$	1,809,303		$	(854	)	$	1,963,768
	Financial Liabilities, at Fair Value, Included Within Other Liabilities of Och-Ziff Funds		$	2,987		$	404		$	2,004		$	(854	)	$	4,541
			As of December 31, 2012
			Level I			Level II			Level III			Counterparty Netting			Total
												of Derivative Contracts
			(dollars in thousands)
	Real estate investments		$	—		$	—		$	615,634		$	—		$	615,634
	Residential mortgage-backed securities			103			—			260,410			—			260,513
	Collateralized debt obligations			—			—			265,722			—			265,722
	Energy and natural resources limited partnerships			—			—			167,467			—			167,467
	Investments in affiliated funds			—			—			88,298			—			88,298
	United States government obligations			72,955			—			—			—			72,955
	Commercial real estate debt			—			—			151,275			—			151,275
	Asset-backed securities			—			—			12,234			—			12,234
	Common and preferred stock			—			—			47,002			—			47,002
	Commercial mortgage-backed securities			—			—			41,961			—			41,961
	Bank debt			—			—			21,255			—			21,255
	Other investments			457			70			183			(400	)		310
	Financial Assets, at Fair Value, Included Within Investments, at Fair Value		$	73,515		$	70		$	1,671,441		$	(400	)	$	1,744,626
	Financial Liabilities, at Fair Value, Included Within Other Liabilities of Och-Ziff Funds		$	374		$	48		$	1,087		$	(400	)	$	1,109
	The Company assumes that any transfers between Level I, Level II or Level III during the period occur at the beginning of the period. For the three and nine months ended September 30, 2013 and 2012, there were no transfers between Level I, Level II or Level III assets or liabilities.
	Reconciliation of Fair Value Measurements Categorized within Level III
	The following table summarizes the changes in the Company’s Level III assets and liabilities for the three months ended September 30, 2013:
			Balance as of			Investment			Investment			Derivative Settlements			Net Gains (Losses)			Balance as of
			June 30, 2013			Purchases			Sales						of Consolidated			September 30, 2013
															Och-Ziff Funds
			(dollars in thousands)
	Real estate investments		$	715,682		$	10,343		$	(104,928	)	$	—		$	11,053		$	632,150
	Residential mortgage-backed securities			347,805			36,091			(25,415	)		—			38			358,519
	Collateralized debt obligations			257,604			4,993			(23,508	)		—			8,293			247,382
	Energy and natural resources limited partnerships			154,005			11,825			—			—			(1,143	)		164,687
	Investments in affiliated funds			129,806			34,755			(17,890	)		—			9,065			155,736
	Commercial real estate debt			153,712			8,440			(32,828	)		—			1,399			130,723
	Asset-backed securities			60,226			9,112			(33,178	)		—			1,609			37,769
	Common and preferred stock			43,196			22			(10,259	)		—			1,350			34,309
	Commercial mortgage-backed securities			27,715			—			(5,221	)		—			7,342			29,836
	Bank debt			15,634			9,602			(9,971	)		—			159			15,424
Other investments (including derivatives, net)			(1,746	)		—			—			1,537			973			764
Total, at Fair Value		$	1,903,639		$	125,183		$	(263,198	)	$	1,537		$	40,138		$	1,807,299
The following table summarizes the changes in the Company’s Level III assets and liabilities for the three months ended September 30, 2012:
		Balance as of			Investment			Investment Sales			Derivative Settlements			Net Gains (Losses)			Balance as of
		June 30, 2012			Purchases									of Consolidated			September 30, 2012
														Och-Ziff Funds
		(dollars in thousands)
Real estate investments		$	379,232		$	56,092		$	(9,684	)	$	—		$	16,427		$	442,067
Residential mortgage-backed securities			177,236			71,061			(31,414	)		—			11,354			228,237
Collateralized debt obligations			132,212			65,817			(12,809	)		—			15,137			200,357
Energy and natural resources limited partnerships			141,172			4,518			—			—			7,523			153,213
Investments in affiliated funds			33,707			49,274			(19,744	)		—			8,578			71,815
Commercial real estate debt			110,897			47,763			(4,205	)		—			(4,748	)		149,707
Asset-backed securities			—			14,910			(1,118	)		—			(208	)		13,584
Common and preferred stock			29,964			20,875			—			—			1,149			51,988
Commercial mortgage-backed securities			49,047			465			(3,953	)		—			2,614			48,173
Bank debt			1,257			3,319			(832	)		—			357			4,101
Other investments (including derivatives, net)			856			—			(2,908	)		72			954			(1,026	)
Total, at Fair Value		$	1,055,580		$	334,094		$	(86,667	)	$	72		$	59,137		$	1,362,216
The following table summarizes the changes in the Company’s Level III assets and liabilities for the nine months ended September 30, 2013:
		Balance as of			Investment			Investment Sales			Derivative Settlements			Net Gains (Losses)			Balance as of
		December 31, 2012			Purchases									of Consolidated			September 30, 2013
														Och-Ziff Funds
		(dollars in thousands)
Real estate investments		$	615,634		$	195,636		$	(277,781	)	$	—		$	98,661		$	632,150
Residential mortgage-backed securities			260,410			211,817			(112,246	)		—			(1,462	)		358,519
Collateralized debt obligations			265,722			35,386			(90,514	)		—			36,788			247,382
Energy and natural resources limited partnerships			167,467			41,291			(53,269	)		—			9,198			164,687
Investments in affiliated funds			88,298			136,256			(87,821	)		—			19,003			155,736
Commercial real estate debt			151,275			62,307			(86,537	)		—			3,678			130,723
Asset-backed securities			12,234			63,515			(37,353	)		—			(627	)		37,769
Common and preferred stock			47,002			747			(16,267	)		—			2,827			34,309
Commercial mortgage-backed securities			41,961			14,045			(35,282	)		—			9,112			29,836
Bank debt			21,255			18,680			(26,466	)		—			1,955			15,424
Other investments (including derivatives, net)			(904	)		—			—			(3,389	)		5,057			764
Total, at Fair Value		$	1,670,354		$	779,680		$	(823,536	)	$	(3,389	)	$	184,190		$	1,807,299
The following table summarizes the changes in the Company’s Level III assets and liabilities for the nine months ended September 30, 2012:
		Balance as of			Investment			Investment Sales			Derivative Settlements			Net Gains (Losses)			Balance as of
		December 31, 2011			Purchases									of Consolidated			September 30, 2012
														Och-Ziff Funds
		(dollars in thousands)
Real estate investments		$	308,019		$	127,792		$	(29,914	)	$	—		$	36,170		$	442,067
Residential mortgage-backed securities			147,426			246,724			(190,634	)		—			24,721			228,237
Collateralized debt obligations			44,060			162,966			(36,153	)		—			29,484			200,357
Energy and natural resources limited partnerships			100,827			6,396			(3,777	)		—			49,767			153,213
Investments in affiliated funds			—			80,799			(19,744	)		—			10,760			71,815
Commercial real estate debt			82,439			100,623			(21,509	)		—			(11,846	)		149,707
Asset-backed securities			—			14,910			(1,118	)		—			(208	)		13,584
Common and preferred stock			—			50,450			—			—			1,538			51,988
Commercial mortgage-backed securities			27,256			31,686			(15,051	)		—			4,282			48,173
Bank debt			—			4,657			(832	)		—			276			4,101
Other investments (including derivatives, net)			2,885			—			(2,908	)		(2,891	)		1,888			(1,026	)
Total, at Fair Value		$	712,912		$	827,003		$	(321,640	)	$	(2,891	)	$	146,832		$	1,362,216
The table below summarizes the net change in unrealized gains and losses on the Company’s Level III investments held as of the reporting date. These gains and losses are included within net gains of consolidated Och-Ziff funds in the Company’s consolidated statements of comprehensive income (loss):
		Three Months Ended September 30,						Nine Months Ended September 30,
		2013			2012			2013			2012
		(dollars in thousands)
Real estate investments		$	(15,193	)	$	13,863		$	46,947		$	31,807
Residential mortgage-backed securities			(2,981	)		6,223			(17,586	)		10,075
Collateralized debt obligations			1,009			16,615			7,468			19,820
Energy and natural resources limited partnerships			(1,143	)		7,522			9,198			48,739
Investments in affiliated funds			8,900			7,124			10,635			7,973
Commercial real estate debt			565			(5,061	)		(929	)		(14,205	)
Asset-backed securities			2,462			(155	)		141			(155	)
Common and preferred stock			2,851			1,149			3,941			1,538
Commercial mortgage-backed securities			6,675			2,382			(2,565	)		3,835
Bank debt			81			331			51			250
Other investments (including derivatives, net)			2,551			490			1,423			1,341
Total		$	5,777		$	50,483		$	58,724		$	111,018
Valuation Methodologies for Fair Value Measurements Categorized within Levels II and III
Real Estate Investments
Real estate investments include equity, preferred equity, mezzanine debt, and participating debt in entities domiciled primarily in the United States. The fair values of these investments are generally based upon discounting the expected cash flows from the investment or a cash flow multiple. In reaching the determination of fair value for investments, the Company considers many factors including, but not limited to: the operating cash flows and financial performance of the real estate investments relative to budgets or projections; property types; geographic locations; the physical condition of the asset; prevailing market capitalization rates; prevailing market discount rates; general economic conditions; economic conditions specific to the market in which the assets are located; the prevailing interest rate environment; the prevailing state of the debt markets; comparable public company trading multiples; independent third-party appraisals; available pricing data on comparable properties in the specific market in which the asset is located; expected exit timing and strategy; and any specific rights or terms associated with the investment.
The significant unobservable inputs used in the fair value measurement of the Company’s real estate investments are discount rates, cash flow growth rates, capitalization rates, the price per square foot, the absorption percentage per year, exit multiples and credit spreads. Significant increases (decreases) in the discount rates, capitalization rates and credit spreads in isolation would be expected to result in a significantly lower (higher) fair value measurement. Significant increases (decreases) in the cash flow growth rates, the price per square foot, the absorption percentage per year and exit multiples in isolation would be expected to result in a significantly higher (lower) fair value measurement.
Collateralized Debt Obligations; Residential and Commercial Mortgage-Backed Securities; Commercial Real Estate Debt; Common and Preferred Stock; Asset-Backed Securities; Bank Debt
The fair value of investments in collateralized debt obligations, residential and commercial mortgage-backed securities, commercial real estate debt, common and preferred stock, asset-backed securities and bank debt that do not have readily ascertainable fair values is generally determined using broker quotes or is based on invested capital. To the extent broker quotes are not available or deemed unreliable, the methods and procedures to value these investments may include, but are not limited to: using independent pricing services; performing comparisons with prices of comparable or similar securities; obtaining valuation-related information from the issuers; calculating the present value of future cash flows; assessing other analytical data and information relating to these investments that is an indication of their value; obtaining information provided by third parties; reviewing the amounts invested in these investments; and evaluating financial information provided by the management of these investments. Market data is used to the extent that it is observable and considered reliable.
The significant unobservable inputs used in the fair value measurement of the Company’s residential mortgage-backed securities that are not valued using broker quotes are discount rates and credit spreads. Significant increases (decreases) in the discount rates and credit spreads in isolation would be expected to result in a significantly lower (higher) fair value measurement.
Energy and Natural Resources Limited Partnerships
The fair value of energy and natural resources limited partnerships are generally determined using discounted cash flows when assets are producing oil or gas, or when it is reasonably certain that an asset will be capable of producing oil or gas. Acreage with proven undeveloped, probable or possible reserves are valued using prevailing prices of comparable properties, and may include adjustments for other assets or liabilities such as seismic data, equipment, and cash held by the investee. Certain natural resource assets may be valued based on recent financings or based on the fair value of certain underlying publicly traded securities held by an investee, adjusted for lack of marketability. Additionally, the fair value for certain energy and natural resources limited partnership investments is based on the net asset value of the underlying fund, adjusted for an illiquidity discount.
The significant unobservable inputs used in the fair value measurement of the Company’s energy and natural resources limited partnerships are energy differentials, discount rates, price of natural gas per thousand cubic feet and price of oil per barrel. Significant increases (decreases) in the discount to energy differentials, discount rates and illiquidity discount in isolation would be expected to result in a lower (higher) fair value measurement. Significant increases (decreases) in the price of natural gas per thousand cubic feet and price of oil per barrel in isolation would be expected to result in a significantly higher (lower) fair value measurement.
Investments in Affiliated Funds
The fair value of investments in affiliated funds relates to consolidated feeder funds’ investments into their related master funds. The Company is not an investor of these feeder funds or master funds. The fair value of these investments is based on the consolidated feeder funds’ proportionate share of the respective master funds’ net asset value. These master funds invest primarily in credit-related strategies.
Information about Significant Inputs Used in Fair Value Measurements Categorized within Level III
The table below summarizes information about the significant unobservable inputs used in determining the fair value of the Level III assets and liabilities held by the consolidated funds. Level III investments not presented in the table below generally do not have any unobservable inputs to disclose, as they are valued primarily using broker quotes, invested capital for recent transactions or net asset value for investments in affiliated funds. These assets and liabilities belong to the investors in the consolidated funds and the Company has a minimal, if any, investment in such funds.
		Fair Value at
		September 30, 2013
Type of Investment		(in thousands)			Valuation Technique		Unobservable Input	Range
Real estate investments		$	632,150		Discounted cash flow		Discount rate		9.5% - 30.0%
							Cash flow growth rate		(19.8%) - 32.0%
							Capitalization rate		7.4% - 11.7%
							Price per square foot		$53.29 - $750.00
							Absorption rate per year		2.8% - 35.0%
							Exit multiple		6.1x
							Credit spread		1225 bps
Residential mortgage-backed securities		$	15,969		Discounted cash flow		Discount rate		11.0% - 21.0%
							Credit spread		675 - 1225 bps
Energy and natural resources limited partnerships		$	112,513		Net asset value		Illiquidity discount		20.00%
		$	8,574		Discounted cash flow		Energy differentials		10.00%
							Discount rate		15.00%
							Price of natural gas per thousand cubic feet	$	4.74
							Price of oil per barrel	$	80
Common and preferred stock		$	12,160		Discounted cash flow		Discount rate		22.00%
							Exit multiple		5.2x
Valuation Process for Fair Value Measurements Categorized within Level III
The Company has established an internal control infrastructure over the valuation of financial instruments that includes ongoing independent oversight by its Financial Controls Group and Valuation Committee, as well as periodic audits by the Company’s Internal Audit Group. These management control functions are segregated from the trading and investing functions.
The Valuation Committee is responsible for developing valuation policies to help ensure that all of the funds’ investments reflect fair values, as well as providing oversight of the valuation process. These valuation policies and procedures include, but are not limited to the following: determining the pricing sources used to value specific investment classes; the selection of independent pricing services; the periodic review of due diligence materials of independent pricing services; and the fair value hierarchy coding of the funds’ investments. The Valuation Committee reviews a variety of reports on a monthly basis, which include, but are not limited to the following: summaries of the sources used to determine the value the funds’ investments; summaries of the fair value hierarchy of the funds’ investments; and variance reports that compare the values of investments to independent pricing services. The Valuation Committee is comprised of non-investment professionals, and may obtain input from investment professionals for consideration in carrying out its responsibilities.
The Financial Controls Group is responsible for ensuring compliance with the valuation policies and preparing the monthly valuation reports reviewed by the Valuation Committee. The Financial Controls Group’s other responsibilities include, but are not limited to the following: preparation and distribution of daily profit and loss reports; overseeing the collection and evaluation of counterparty prices, broker-dealer quotations, exchange prices and third party pricing feeds; performing back testing by comparing prices observed in executed transactions to previous day valuations and/or pricing service providers on a weekly and monthly basis; preparing due diligence report reviews on independent pricing services on an annual or as needed basis; and assisting the Valuation Committee in developing valuation policies.
The Internal Audit Group employs a risk-based program of audit coverage that is designed to provide an independent assessment of the design and effectiveness of controls over the Company’s operations, regulatory compliance, valuation of financial instruments and reporting. Additionally, the Internal Audit Group meets with management periodically to evaluate and provide guidance on the existing risk framework and control environment assessments.
Monthly procedures have been established for Level III investments to compare unobservable inputs to observable inputs for similar positions, review subsequent market activities, perform comparisons of actual versus projected cash flows, and discuss the valuation methodology, including pricing techniques when applicable, with investment professionals. Independent pricing services may be used to corroborate the Company’s internal valuations. Investment professionals and members of the Financial Controls Group review a daily profit and loss report, as well as other periodic reports that analyze the profit and loss and related asset class exposure of the funds’ investments.
Fair Value of Delayed Draw Term Loan
Management estimates that the fair value of the $385.1 million outstanding under the Company’s delayed draw term loan agreement entered into in November 2011 (the “Delayed Draw Term Loan”) was approximately 94% of its carrying value as of September 30, 2013, based on an analysis of comparable issuers. This fair value measurement would be categorized as Level III within the fair value hierarchy.

Balance_Sheet_Offsetting

Balance Sheet Offsetting

9 Months Ended

Sep. 30, 2013

Text Block [Abstract]

'

Balance Sheet Offsetting

'

5

BALANCE SHEET OFFSETTING

In the ordinary course of business, the consolidated funds have entered into certain transactions which are subject to master agreements that provide for payment netting and that, in the case of a default or similar event with respect to the counterparty to the master agreement, provide for netting across transactions. Generally, upon a counterparty default, the fund can terminate all transactions under the master agreement and set off amounts it owes across all transactions under a particular master agreement against collateral it has received under such master agreement; provided, however, that in the case of certain defaults, the fund may only be able to terminate and setoff solely with respect to the transactions affected by the default. Generally, the funds party to these agreements manage cash and securities collateral on a counterparty basis as permitted under each master agreement. The table below presents the repurchase agreements that are set off, if any, as well as collateral received related to those repurchase agreements. No other material financial instruments were subject to master netting agreements or other similar agreements.

Securities Sold Under Agreements to Repurchase

Gross Amounts of

Gross Amounts

Net Amounts of

Financial

Net Amount

Recognized

Offset in the

Liabilities in the

Instruments and

Liabilities

Consolidated Balance

Consolidated Balance

Collateral Delivered

Sheet

Sheet

(dollars in thousands)

As of September 30, 2013

$

301,778

—

301,778

301,778

$

—

As of December 31, 2012

$

223,543

—

223,543

223,543

$

—

Variable_Interest_Entities

Variable Interest Entities	9 Months Ended
	Sep. 30, 2013
Text Block [Abstract]	'
Variable Interest Entities	'
	6	VARIABLE INTEREST ENTITIES
	In the ordinary course of business, the Company sponsors the formation of variable interest entities (“VIEs”). These VIEs generally consist of the following categories: funds, CLOs and joint ventures. The Company has not recorded any liabilities with respect to VIEs that are not consolidated.
	Funds
	Many of the Company’s funds are VIEs. The Company generally serves as the general partner or the investment manager with decision-making rights for these entities. Substantially all of the funds that are VIEs managed by the Company qualify for the deferral granted under ASU 2010-10, Amendments to Statement 167 for Certain Investment Funds. Accordingly, the Company’s determination of whether it is the primary beneficiary of a fund that is a VIE is generally based on identifying the variable interest holder that is exposed to the majority of the expected losses or receives a majority of the expected residual returns. Fund investors are entitled to substantially all of the economics of these VIEs with the exception of management fees and incentive income, if any, earned by the Company. Accordingly, the determination of whether the Company is the primary beneficiary of these entities is not impacted by changes in the underlying assumptions made regarding future results or expected cash flows of these VIEs.
	The Company consolidates funds that are VIEs where either kick-out rights or liquidation rights were not granted to the investors in those funds, or these rights, if granted, were deemed not to be substantive. The following table presents the assets and liabilities of funds that are VIEs and consolidated by the Company:
			September 30, 2013		December 31, 2012
			(dollars in thousands)
	Assets
	Assets of consolidated Och-Ziff funds:
	Investments, at fair value		$	686,748	$	585,537
	Other assets of Och-Ziff funds			24,087		17,973
	Total Assets		$	710,835	$	603,510
	Liabilities
	Liabilities of consolidated Och-Ziff funds:
	Securities sold under agreements to repurchase		$	82,162	$	65,449
	Other liabilities of Och-Ziff funds			15,391		1,993
	Total Liabilities		$	97,553	$	67,442
	The assets presented in the table above belong to the investors in those funds, are available for use only by the fund to which they belong, and are not available for use by the Company. The consolidated funds have no recourse to the general credit of the Company with respect to any liability. The Company also consolidates funds that are not VIEs, and therefore the assets and liabilities of those funds are not included in the table above.
	The Company’s involvement with funds that are VIEs and not consolidated by the Company is generally limited to providing asset management services. The Company’s exposure to loss from these entities is limited to a decrease in the management fees and incentive income that may be earned in future periods. The net assets of these VIEs were $31.2 billion and $27.7 billion as of September 30, 2013, and December 31, 2012, respectively. The Company does not provide, nor is it required to provide, any type of financial or other support to these entities. The Company’s variable interests related to these VIEs relate primarily to management fees and incentive income earned from these entities. As of September 30, 2013, and December 31, 2012, the only assets arising from these variable interests related to income and fees receivable of $44.6 million and $392.9 million, respectively.
	CLOs
	The Company sponsors the formation of CLOs that are VIEs. CLOs are entities that issue collateralized loan instruments that offer investors the opportunity for returns that vary commensurately with the risk they assume. The loans issued by the CLOs are generally backed by asset portfolios consisting of loans or structured debt. The Company serves as collateral manager to the CLOs and receives collateral management fees for these services. The Company’s exposure to loss from these entities is limited to any seed investments in a CLO, which are mandatorily redeemable upon the launch of the CLO. As of September 30, 2013, the Company had investments in a CLO it manages of $15.0 million. The Company had no investments in CLOs it managed as of December 31, 2012. The Company also has an exposure to loss in the form of a decrease in the fees that may be earned in future periods from CLOs. As of September 30, 2013, and December 31, 2012, the only other assets related to the CLOs are income and fees receivable from these CLOs of $2.3 million and $1.6 million, respectively. Total gross assets held by these VIEs were $2.4 billion and $1.1 billion as of September 30, 2013, and December 31, 2012, respectively.
	The deferral granted in ASU 2010-10 does not apply to CLOs. Accordingly, the determination of whether the Company is the primary beneficiary that would consolidate a CLO is based on a qualitative assessment to determine whether the Company, as collateral manager, has (i) the power to direct the activities of the CLO that most significantly impact the entity’s economic performance, and (ii) the obligations to absorb losses or the right to receive benefits from the entity that could potentially be significant.
	The Company determined that it possesses the power to direct the activities of the CLOs that most significantly impact the CLOs’ economic performance through its role in managing collateral and credit risk. However, the Company is not an investor in the CLOs except for the $15.0 million seed investment described above, and it has determined that the collateral management fees it expects to receive would not be significant to the economic performance of the CLOs. In addition to collateral management fees, the Company also has the potential to earn incentive income based on the performance the CLOs deliver to the holders of the subordinated notes issued by the CLOs. Due to the hurdle rates required to be exceeded before the Company is able to earn incentive income, and the size of the subordinated notes relative to each respective CLO, the Company has determined that any incentive income from the CLO would not be significant to the economic performance of the CLO. The determination that the collateral management fees and potential incentive income earned from the CLOs would not be significant to its economic performance is based on a qualitative assessment of the nature of the fees and the CLO structures. A quantitative assessment was performed to support these conclusions, which included an analysis of the fees the Company would earn under various performance scenarios of the underlying collateral. The Company determined that under these scenarios, fees earned by the Company would not be significant to the economic performance of the CLOs. Accordingly, the Company currently does not consolidate any CLOs.
	Joint Ventures
	The Company holds a variable interest in a joint venture that is a VIE. The Company’s exposure to loss for this joint venture is limited to its investments in the entity, which totaled $5.0 million and $4.7 million as of September 30, 2013, and December 31, 2012, respectively, and is recorded within other assets in the Company’s consolidated balance sheets.

Other_Assets_Net

Other Assets, Net	9 Months Ended
	Sep. 30, 2013
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]	'
Other Assets, Net	'
	7	OTHER ASSETS, NET
	The following table presents the components of other assets, net as reported in the consolidated balance sheets:
			September 30, 2013			December 31, 2012
			(dollars in thousands)
	Fixed Assets:
	Corporate aircraft		$	22,600		$	22,600
	Leasehold improvements			21,613			21,579
	Computer hardware and software			20,865			18,682
	Furniture, fixtures and equipment			3,146			3,123
	Accumulated depreciation and amortization			(50,697	)		(45,139	)
	Fixed assets, net			17,527			20,845
	Goodwill			22,691			22,691
	Receivables			18,443			2,107
	Investment in Och-Ziff CLO			15,000			—
	Prepaid expenses			5,744			10,530
	Refundable security deposits			5,303			5,765
	Investments in joint ventures			5,003			4,654
	Investments in Och-Ziff funds			2,813			1,658
	Intangible assets, net			2,299			2,859
	Other			897			1,129
	Total Other Assets, Net		$	95,720		$	72,238

Other_Liabilities

Other Liabilities	9 Months Ended
	Sep. 30, 2013
Other Liabilities Disclosure [Abstract]	'
Other Liabilities	'
	8	OTHER LIABILITIES
	The following table presents the components of other liabilities as reported in the consolidated balance sheets:
			September 30, 2013		December 31, 2012
			(dollars in thousands)
	Deferred income of consolidated Och-Ziff funds		$	130,234	$	78,992
	Accrued expenses			31,370		20,910
	Deferred rent credit			15,529		14,498
	Current income taxes payable			2,536		3,331
	Other			997		1,798
	Total Other Liabilities		$	180,666	$	119,529

General_Administrative_and_Oth

General, Administrative and Other	9 Months Ended
	Sep. 30, 2013
Other Income And Expenses [Abstract]	'
General, Administrative and Other	'
	9	GENERAL, ADMINISTRATIVE AND OTHER
	The following table presents the components of general, administrative and other expenses as reported in the consolidated statements of comprehensive income (loss):
			Three Months Ended September 30,						Nine Months Ended September 30,
			2013			2012			2013			2012
			(dollars in thousands)
	Professional services		$	8,589		$	7,538		$	34,777		$	19,168
	Occupancy and equipment			7,314			6,869			22,504			20,620
	Recurring placement and related service fees			8,190			5,955			22,056			17,256
	Information processing and communications			5,340			4,312			15,223			14,197
	Business development			2,649			2,033			7,803			6,748
	Insurance			1,920			1,919			5,653			5,738
	Other expenses			3,456			3,535			9,021			9,685
				37,458			32,161			117,037			93,412
	Changes in tax receivable agreement liability			(1,071	)		(1,519	)		(1,054	)		(1,570	)
	Total General, Administrative and Other		$	36,387		$	30,642		$	115,983		$	91,842

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	10	INCOME TAXES
	The computation of the effective tax rate and provision at each interim period requires the use of certain estimates and significant judgment including, but not limited to, the expected operating income for the year, projections of the proportion of income earned and taxed in foreign jurisdictions, permanent differences, and the likelihood of recovering deferred tax assets existing as of the balance sheet date. The estimates used to compute the provision for income taxes may change as new events occur, additional information is obtained or as tax laws and regulations change. Additionally, the Company records the majority of its incentive income and discretionary cash bonuses in the fourth quarter each year. Accordingly, the effective tax rate for interim periods is not indicative of the tax rate expected for a full year.
	The Registrant and each of the Och-Ziff Operating Group entities are partnerships for U.S. federal income tax purposes. Due to the Company’s legal structure, only a portion of the income earned by the Company is subject to corporate-level tax rates in the United States and in foreign jurisdictions.
	The provision for income taxes includes federal, state and local taxes in the United States and foreign taxes at an approximate effective tax rate of 9.2% and -7.1% for the three months ended September 30, 2013 and 2012, respectively, and 9.6% and -5.5% for the nine months ended September 30, 2013 and 2012, respectively. The reconciling items from the Company’s statutory rate to the effective tax rate were driven primarily by the following: (i) a portion of the income earned by the Company is not subject to federal, state and local corporate income taxes in the United States; (ii) a portion of the income earned by the Company is subject to the New York City unincorporated business tax; (iii) certain foreign subsidiaries are subject to foreign corporate income taxes; and (iv) the Reorganization expenses related to the reclassification of the executive managing directors’ and the Ziffs’ interests as Och-Ziff Operating Group A Units are not deductible for tax purposes.
	As of September 30, 2013, and December 31, 2012, the Company was not required to establish a liability for uncertain tax positions.

Earnings_Loss_Per_Class_A_Shar

Earnings (Loss) Per Class A Share	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Earnings (Loss) Per Class A Share	'
	11	EARNINGS (LOSS) PER CLASS A SHARE
	Basic earnings (loss) per Class A Share is computed by dividing the net income (loss) allocated to Class A Shareholders by the weighted-average number of Class A Shares outstanding for the period. For the three months ended September 30, 2013 and 2012, the Company included, respectively, 1,600,165 and 974,989 RSUs that have vested but have not been settled in Class A Shares in the weighted-average Class A Shares outstanding used in the calculation of basic and diluted earnings (loss) per Class A Share. For the nine months ended September 30, 2013 and 2012, the Company included, respectively, 1,854,084 and 1,031,288 RSUs that have vested but have not been settled in Class A Shares in the weighted-average Class A Shares outstanding used in the calculation of basic and diluted earnings (loss) per Class A Share.
	The following tables present the computation of basic and diluted earnings (loss) per Class A Share:
			Net Income			Weighted-		Earnings Per			Number of
			Allocated to			Average Class		Class A			Antidilutive Units
			Class A			A Shares		Share			Excluded from
			Shareholders			Outstanding					Diluted Calculation
			(dollars in thousands, except per share amounts)
	Three Months Ended September 30, 2013
	Basic		$	24,895			156,752,496	$	0.16
	Effect of dilutive securities:
	Och-Ziff Operating Group A Units			39,527			312,852,072					—
	RSUs			—			5,676,744					—
	Diluted		$	64,422			475,281,312	$	0.14
			Net Loss			Weighted-		Loss			Number of
			Allocated to			Average Class		Per Class A			Antidilutive Units
			Class A			A Shares		Share			Excluded from
			Shareholders			Outstanding					Diluted Calculation
			(dollars in thousands, except per share amounts)
	Three Months Ended September 30, 2012
	Basic		$	(127,509	)		143,477,776	$	(0.89	)
	Effect of dilutive securities:
	Och-Ziff Operating Group A Units			—			—					294,186,978
	RSUs			—			—					8,505,301
	Diluted		$	(127,509	)		143,477,776	$	(0.89	)
			Net Income			Weighted-		Earnings Per			Number of
			Allocated to			Average Class		Class A			Antidilutive Units
			Class A			A Shares		Share			Excluded from
			Shareholders			Outstanding					Diluted Calculation
			(dollars in thousands, except per share amounts)
	Nine Months Ended September 30, 2013
	Basic		$	55,861			153,160,992	$	0.36
	Effect of dilutive securities:
	Och-Ziff Operating Group A Units			—			—					309,229,588
	RSUs			—			3,506,508					—
	Diluted		$	55,861			156,667,500	$	0.36
			Net Loss			Weighted-		Loss			Number of
			Allocated to			Average Class		Per Class A			Antidilutive Units
			Class A			A Shares		Share			Excluded from
			Shareholders			Outstanding					Diluted Calculation
			(dollars in thousands, except per share amounts)
	Nine Months Ended September 30, 2012
	Basic		$	(366,495	)		142,036,892	$	(2.58	)
	Effect of dilutive securities:
	Och-Ziff Operating Group A Units			—			—					294,186,978
	RSUs			—			—					8,505,301
	Diluted		$	(366,495	)		142,036,892	$	(2.58	)

Related_Party_Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2013
Related Party Transactions [Abstract]	'
Related Party Transactions	'
	12	RELATED PARTY TRANSACTIONS
	Due to Related Parties
	Amounts due to related parties relate to future payments owed to the Company’s executive managing directors and the Ziffs under the tax receivable agreement. As further discussed in Note 13, the Company entered into an agreement with the executive managing directors and the Ziffs, whereby the Company would pay them a portion of any tax savings resulting from the purchase of Och-Ziff Operating Group A Units at the time of the 2007 Offerings or as a result of any subsequent exchanges of their interests for Class A Shares.
	Management Fees and Incentive Income Earned from the Och-Ziff Funds
	The Company earns substantially all of its management fees and incentive income from the Och-Ziff funds, which are considered related parties as the Company manages the operations of and makes investment decisions for these funds. Management fees related to the real estate funds included within the Company’s Other Operations are collected directly from the investors in those funds, and therefore are not considered revenues earned from related parties.
	Management Fees and Incentive Income Earned from Related Parties and Waived Fees
	Prior to the 2007 Offerings, the Company did not charge management fees or earn incentive income on investments made by the Company’s executive managing directors, employees and other related parties. Following the 2007 Offerings, the Company began charging management fees and earning incentive income on new investments made in the funds by executive managing directors and certain other related parties, including the reinvestment by executive managing directors of the after-tax proceeds from the 2007 Offerings. The Company continues to waive fees for employee investments in the funds.
	The following table presents management fees and incentive income charged on investments held by related parties and amounts waived by the Company for related parties before the impact of eliminations related to the consolidated funds:
			Three Months Ended September 30,				Nine Months Ended September 30,
			2013		2012		2013		2012
			(dollars in thousands)
	Fees charged on investments held by related parties:
	Management fees		$	7,271	$	6,734	$	22,106	$	19,135
	Incentive income		$	1,776	$	502	$	3,491	$	1,140
	Fees waived on investments held by related parties:
	Management fees		$	3,577	$	3,277	$	10,596	$	9,726
	Corporate Aircraft
	The Company’s corporate aircraft is used primarily for business purposes. From time to time, Mr. Och uses the aircraft for personal use. For the three months ended September 30, 2013 and 2012, the Company charged Mr. Och $94 thousand and $149 thousand, respectively, based on market rates for his personal use of the aircraft. For the nine months ended September 30, 2013 and 2012, the Company charged Mr. Och $499 thousand and $359 thousand, respectively, for his personal use of the aircraft.

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2013
Commitments And Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	13	COMMITMENTS AND CONTINGENCIES
	Tax Receivable Agreement
	The purchase of Och-Ziff Operating Group A Units from the executive managing directors and the Ziffs with the proceeds from the 2007 Offerings, and subsequent taxable exchanges by them of Och-Ziff Operating Group A Units for Class A Shares on a one-for-one basis (or, at the Company’s option, a cash equivalent), resulted, and, in the case of future exchanges, are anticipated to result, in an increase in the tax basis of the tangible and intangible assets of the Och-Ziff Operating Group that would not otherwise have been available. As a result, the Company expects that its future tax liability will be reduced. Pursuant to the tax receivable agreement entered into among the Company, the executive managing directors and the Ziffs, the Company has agreed to pay to the executive managing directors and the Ziffs 85% of the amount of tax savings, if any, actually realized by the Company.
	The Company recorded its initial estimate of future payments under the tax receivable agreement by recording a decrease to paid-in capital and an increase in amounts due to related parties in the consolidated financial statements. Subsequent adjustments to the liability for future payments under the tax receivable agreement related to changes in estimated future tax rates or state income tax apportionment are recognized through current period earnings within general, administrative and other expenses in the consolidated statements of comprehensive income (loss).
	In connection with the departure of certain former executive managing directors since the 2007 Offerings, the right to receive payments under the tax receivable agreement by those former executive managing directors was contributed to the Och-Ziff Operating Group. As a result, the Company now expects to pay to the remaining executive managing directors and the Ziffs approximately 78% (from 85% at the time of the 2007 Offerings) of the amount of cash savings, if any, in federal, state and local income taxes in the United States that the Company actually realizes as a result of the increases in tax basis.
	The estimate of the timing and the amount of future payments under the tax receivable agreement involves several assumptions that do not account for the significant uncertainties associated with these potential payments, including an assumption that Och-Ziff Corp will have sufficient taxable income in the relevant tax years to utilize the tax benefits that would give rise to an obligation to make payments. The actual timing and amount of any actual payments under the tax receivable agreement will vary based upon these and a number of other factors.
	Lease Obligations
	The Company has non-cancelable operating leases for its headquarters in New York and various other operating leases for its offices in London, Hong Kong, Mumbai, Beijing and Dubai. The Company also has operating leases for other locations, as well as operating and capital leases on computer hardware. The related capital lease commitments have not changed materially since December 31, 2012. During the second quarter of 2013, the Company extended its operating lease for its headquarters in New York through 2029. The table below presents total future minimum lease payments for the Company’s operating leases with original or remaining noncancelable lease terms in excess of one year, including the extension discussed above.
			Minimum Lease
			Payments
			(dollars in thousands)
	Remainder of 2013		$	5,227
	2014			20,464
	2015			21,943
	2016			23,444
	2017			23,442
	Thereafter			219,296
	Total Minimum Lease Payments		$	313,816
	Litigation
	From time to time, the Company is involved in litigation and claims incidental to the conduct of the Company’s business. The Company is also subject to extensive scrutiny by regulatory agencies globally that have, or may in the future have, regulatory authority over the Company and its business activities. This has resulted, or may in the future result, in regulatory agency investigations, litigation and subpoenas and costs related to each. The Company is currently not subject to any pending judicial, administrative or arbitration proceedings that are expected to have a material impact on the Company’s consolidated financial statements.
	Investment Commitments
	From time to time, certain funds consolidated by the Company may have commitments to fund investments. These commitments are funded through contributions from investors in those funds. The Company generally only manages these funds and is not an investor in the funds.
	The Company has committed to fund a portion of the annual operating budget for a joint venture, and this portion currently totals approximately $4.7 million annually. The joint venture periodically returns substantially all of the cash that is contributed by the Company, as expenses incurred by the joint venture are generally reimbursed by the projects it manages.
	Other Contingencies
	In the normal course of business, the Company enters into contracts that provide a variety of general indemnifications. Such contracts include those with certain service providers, brokers and trading counterparties. Any exposure to the Company under these arrangements could involve future claims that may be made against the Company. Currently, no such claims exist or are expected to arise and, accordingly, the Company has not accrued any liability in connection with such indemnifications.

Segment_Information

Segment Information	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]	'
Segment Information	'
	14	SEGMENT INFORMATION
	The Och-Ziff Funds segment is currently the Company’s only reportable segment and represents the Company’s core business, as substantially all of the Company’s operations are conducted through this segment. The Och-Ziff Funds segment provides asset management services to the Company’s multi-strategy funds, credit funds, CLOs and other alternative investment vehicles.
	The Company’s Other Operations are primarily comprised of its real estate business, which provides asset management services to its real estate funds. The businesses included in the Company’s Other Operations do not meet the thresholds of reportable business segments under GAAP.
	In addition to analyzing the Company’s results on a GAAP basis, management also reviews its results on an “Economic Income” basis. Economic Income excludes the adjustments described below that are required for presentation of the Company’s results on a GAAP basis, but that management does not consider when evaluating operating performance in any given period. Management, therefore, uses Economic Income as the basis on which it evaluates the Company’s financial performance and makes resource allocation and other operating decisions. Management considers it important that investors review the same operating information that it uses.
	Economic Income is a measure of pre-tax operating performance that excludes the following from the Company’s results on a GAAP basis:
		•		Income allocations to the Company’s executive managing directors and the Ziffs on their direct interests in the Och-Ziff Operating Group. Management reviews operating performance at the Och-Ziff Operating Group level, where substantially all of the Company’s operations are performed, prior to making any income allocations.
		•		Reorganization expenses related to the 2007 Offerings, equity-based compensation expenses and depreciation and amortization expenses, as management does not consider these non-cash expenses to be reflective of operating performance.
		•		Changes in the tax receivable agreement liability and net gains (losses) on investments in Och-Ziff funds, as management does not consider these to be reflective of operating performance.
		•		Amounts related to the consolidated Och-Ziff funds, including the related eliminations of management fees and incentive income, as management reviews the total amount of management fees and incentive income earned in relation to total assets under management and fund performance.
	In addition, expenses related to compensation arrangements based on fund investment performance are recognized at the end of the relevant performance measurement period (generally in the fourth quarter of each year), as management determines the total amount of compensation under these arrangements once the investment performance of the relevant fund over the applicable performance measurement period is known.
	Finally, management reviews Economic Income revenues by presenting management fees net of recurring placement and related service fees, rather than considering these fees an expense, and by excluding the impact of the consolidated Och-Ziff funds.
	Management does not regularly review assets by operating segment in assessing operating segment performance and the allocation of company resources; therefore, the Company does not present total assets by operating segment. All interest expense related to outstanding indebtedness is allocated to the Och-Ziff Funds segment.
	Och-Ziff Funds Segment Results
			Three Months Ended September 30,						Nine Months Ended September 30,
			2013			2012			2013			2012
			(dollars in thousands)
	Och-Ziff Funds Segment:
	Economic Income Revenues		$	208,021		$	127,457		$	589,089		$	383,928
	Economic Income		$	153,535		$	80,042		$	424,461		$	248,691
	Reconciliation of Och-Ziff Funds Segment Revenues to Consolidated Revenues
			Three Months Ended September 30,						Nine Months Ended September 30,
			2013			2012			2013			2012
			(dollars in thousands)
	Total consolidated revenues		$	256,871		$	167,973		$	735,077		$	487,319
	Adjustment to management fees(1)			(5,347	)		(3,886	)		(14,003	)		(12,359	)
	Adjustment to incentive income(2)			—			—			1,114			—
	Other Operations revenues			(2,691	)		(2,925	)		(8,238	)		(7,774	)
	Income of consolidated Och-Ziff funds			(40,812	)		(33,705	)		(124,861	)		(83,258	)
	Economic Income Revenues - Och-Ziff Funds Segment		$	208,021		$	127,457		$	589,089		$	383,928
	-1	Adjustment to present management fees net of recurring placement and related service fees, as management considers these fees a reduction in management fees, not an expense. The impact of eliminations related to the consolidated Och-Ziff funds is also removed.
	-2	Adjustment to exclude the impact of eliminations related to the consolidated funds.
	Reconciliation of Och-Ziff Funds Economic Income to Net Income (Loss) Allocated to Class A Shareholders
			Three Months Ended September 30,						Nine Months Ended September 30,
			2013			2012			2013			2012
			(dollars in thousands)
	Net income (loss) allocated to Class A Shareholders		$	24,895		$	(127,509	)	$	55,861		$	(366,495	)
	Net income (loss) allocated to the Och-Ziff Operating Group A Units			69,089			(231,234	)		192,362			(689,883	)
	Equity-based compensation			36,389			16,219			99,426			50,294
	Income taxes			14,786			19,127			49,803			46,022
	Reorganization expenses			4,022			398,503			12,064			1,195,335
	Adjustment for expenses related to compensation arrangements based on fund investment performance			4,324			3,643			7,603			6,608
	Depreciation and amortization			2,022			2,406			6,344			7,085
	Allocations to Och-Ziff Operating Group D Units			—			1,812			5,590			4,244
	Other Operations			(686	)		(1,244	)		(2,487	)		(2,464	)
	Changes in tax receivable agreement liability			(1,071	)		(1,519	)		(1,054	)		(1,570	)
	Other adjustments			(235	)		(162	)		1,051			(485	)
	Economic Income - Och-Ziff Funds Segment		$	153,535		$	80,042		$	424,461		$	248,691

Subsequent_Events

Subsequent Events	9 Months Ended
	Sep. 30, 2013
Subsequent Events [Abstract]	'
Subsequent Events	'
	15	SUBSEQUENT EVENTS
	On November 5, 2013, the Company announced a cash dividend of $0.25 per Class A Share. The dividend is payable on November 22, 2013, to holders of record as of the close of business on November 15, 2013.

Basis_of_Presentation_and_Summ1

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Basis of Presentation	'
	Basis of Presentation
	These unaudited, interim, consolidated financial statements are prepared in accordance with GAAP as set forth in the Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification (“ASC”), and should be read in conjunction with the audited consolidated financial statements included in the Company’s annual report on Form 10-K for the year ended December 31, 2012. In the opinion of management, all adjustments considered necessary for a fair presentation of the Company’s unaudited, interim, consolidated financial statements have been included and are of a normal and recurring nature. The results of operations presented for the interim periods are not necessarily indicative of the results that may be expected for any other interim period or for the entire year, primarily because of the majority of incentive income and discretionary cash bonuses being recorded in the fourth quarter each year. All significant intercompany transactions and balances have been eliminated in consolidation.
Recently Adopted Accounting Pronouncements	'
	Recently Adopted Accounting Pronouncements
	In December 2011, the FASB issued ASU 2011-11, Disclosures about Offsetting Assets and Liabilities. ASU 2011-11, as clarified by ASC 2013-01, Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities, requires entities to disclose both gross and net information about derivative instruments, repurchase and reverse-repurchase agreements, and securities borrowing and lending transactions that are either (i) offset in the balance sheet, or (ii) subject to an enforceable master netting arrangement or similar arrangement, irrespective of whether they are offset in the balance sheet. In addition, ASU 2011-11 requires disclosure of collateral received and posted in connection with master netting agreements or similar arrangements. The requirements of ASU 2011-11 were effective for the Company beginning in the first quarter of 2013. The adoption of ASU 2011-11 did not have any impact on the Company’s financial position or results of operations, as ASU 2011-11 only affects disclosures about offsetting. No changes were made to the existing guidance on the offsetting of assets and liabilities in the Company’s balance sheet.
	In February 2013, the FASB issued ASU 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. ASU 2013-02 requires entities to present significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income only if the amount is required to be reclassified to net income in its entirety within the same reporting period. For other amounts that are not required to be reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures required that provide additional detail about those amounts. The requirements of ASU 2013-02 were effective for the Company beginning in the first quarter of 2013. The adoption of ASU 2013-02 did not have any impact on the Company’s financial position or results of operations.
	Future Adoption of Accounting Pronouncements
	In June 2013, the FASB issued ASU 2013-08, Financial Services—Investment Companies. ASU 2013-08 provides clarifying guidance to determine if an entity qualifies as an investment company. ASU 2013-08 also requires an investment company to measure noncontrolling interests in other investment companies at fair value. The following disclosures will also be required upon adoption of ASU 2013-08: (i) whether an entity is an investment company and is applying the accounting and reporting guidance for investment companies; (ii) information about changes, if any, in an entity’s status as an investment company; and (iii) information about financial support provided or contractually required to be provided by an investment company to any of its investees. The requirements of ASU 2013-08 are effective for the Company beginning in the first quarter of 2014. The Company is currently evaluating the impact, if any, that these updates will have on its financial condition or results of operations.
Fair Value Disclosures	'
	Fair value represents the price that would be received upon the sale of an asset or paid to transfer a liability in an orderly transaction between market participants as of the measurement date (i.e., an exit price). Due to the inherent uncertainty of valuations of investments that are determined to be illiquid or do not have readily ascertainable fair values, the estimates of fair value may differ from the values ultimately realized, and those differences can be material.
	GAAP prioritizes the level of market price observability used in measuring assets and liabilities at fair value. Market price observability is impacted by a number of factors, including the type of assets and liabilities and the specific characteristics of the assets and liabilities. Assets and liabilities with readily available, actively quoted prices or for which fair value can be measured from actively-quoted prices generally will have a higher degree of market price observability and lesser degree of judgment used in measuring fair value.
	Assets and liabilities measured at fair value are classified into one of the following categories:
		•	Level I – Fair value is determined using quoted prices that are available in active markets for identical assets or liabilities. The types of assets and liabilities that would generally be included in this category are certain listed equities, sovereign debt of developed nations and listed derivatives.
		•	Level II – Fair value is determined using quotations received from dealers making a market for these assets or liabilities (“broker quotes”), valuations obtained from independent third-party pricing services, the use of models or other valuation methodologies based on pricing inputs that are either directly or indirectly market observable as of the measurement date. Consideration is given to the nature of the broker quotes (e.g., indicative or executable). Assets and liabilities for which executable broker quotes are significant inputs in determining the fair value of an asset or liability are included within Level II. The types of assets and liabilities that would generally be included in this category are certain corporate bonds, certain credit default swap contracts, certain bank debt securities, certain commercial real estate debt, less liquid and restricted equity securities, forward contracts and certain over the-counter (“OTC”) derivatives.
		•	Level III – Fair value is determined using pricing inputs that are unobservable in the market and includes situations where there is little, if any, market activity for the asset or liability. The fair value of assets and liabilities in this category may require significant judgment or estimation in determining fair value of the assets or liabilities. The fair value of these assets and liabilities may be estimated using a combination of observed transaction prices, independent pricing services, relevant broker quotes, models or other valuation methodologies based on pricing inputs that are neither directly or indirectly market observable. Assets and liabilities for which indicative broker quotes are significant inputs in determining the fair value of an asset or liability are included within Level III. The types of assets and liabilities that would generally be included in this category include real estate investments, equity and debt securities issued by private entities, limited partnerships, certain corporate bonds, certain credit default swap contracts, certain bank debt securities, certain commercial real estate debt, certain OTC derivatives, residential and commercial mortgage-backed securities, asset-backed securities and collateralized debt obligations.
	In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an asset or liability’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability.

Noncontrolling_Interests_Table

Noncontrolling Interests (Tables)	9 Months Ended
	Sep. 30, 2013
Noncontrolling Interest [Abstract]	'
Components of Net Income (Loss) Allocated to Noncontrolling Interests	'
	The following table presents the components of the net income (loss) allocated to noncontrolling interests:
		Three Months Ended September 30,						Nine Months Ended September 30,
		2013			2012			2013		2012
		(dollars in thousands)
	Och-Ziff Operating Group A Units	$	69,089		$	(231,234	)	$	192,362	$	(689,883	)
	Consolidated Och-Ziff funds		51,243			69,010			220,836		173,146
	Other		410			592			1,543		1,374
		$	120,742		$	(161,632	)	$	414,741	$	(515,363	)
Changes to Shareholders' Equity Related to Group A Unit Transactions	'
	During the first nine months of 2013, the Company issued 11,000,000 Class A Shares in connection with the Ziffs’ exchange of an equal number of Och-Ziff Operating Group A Units. As a result, the Company recorded the following changes to shareholders’ equity:
		Nine Months Ended
		30-Sep-13
		Paid-in			Noncontrolling
		Capital			Interests
		(dollars in thousands)
	Deferred income tax assets resulting from exchanges, net of increases in the tax receivable agreement liability	$	8,290		$	—
	Deficit capital reallocated from noncontrolling interests to the Company’s paid-in capital		(3,493	)		3,493
		$	4,797		$	3,493

Fair_Value_Disclosures_Tables

Fair Value Disclosures (Tables)	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis	'
	The following table summarizes the Company’s assets and liabilities measured at fair value on a recurring basis within the fair value hierarchy:
		As of September 30, 2013
		Level I			Level II			Level III			Counterparty Netting			Total
											of Derivative Contracts
		(dollars in thousands)
	Real estate investments	$	—		$	—		$	632,150		$	—		$	632,150
	Residential mortgage-backed securities		197			—			358,519			—			358,716
	Collateralized debt obligations		—			—			247,382			—			247,382
	Energy and natural resources limited partnerships		—			—			164,687			—			164,687
	Investments in affiliated funds		—			—			155,736			—			155,736
	United States government obligations		154,978			—			—			—			154,978
	Commercial real estate debt		—			—			130,723			—			130,723
	Asset-backed securities		—			—			37,769			—			37,769
	Common and preferred stock		—			—			34,309			—			34,309
	Commercial mortgage-backed securities		—			—			29,836			—			29,836
	Bank debt		—			—			15,424			—			15,424
	Other investments		80			64			2,768			(854	)		2,058
	Financial Assets, at Fair Value, Included Within Investments, at Fair Value	$	155,255		$	64		$	1,809,303		$	(854	)	$	1,963,768
	Financial Liabilities, at Fair Value, Included Within Other Liabilities of Och-Ziff Funds	$	2,987		$	404		$	2,004		$	(854	)	$	4,541
		As of December 31, 2012
		Level I			Level II			Level III			Counterparty Netting			Total
											of Derivative Contracts
		(dollars in thousands)
	Real estate investments	$	—		$	—		$	615,634		$	—		$	615,634
	Residential mortgage-backed securities		103			—			260,410			—			260,513
	Collateralized debt obligations		—			—			265,722			—			265,722
	Energy and natural resources limited partnerships		—			—			167,467			—			167,467
	Investments in affiliated funds		—			—			88,298			—			88,298
	United States government obligations		72,955			—			—			—			72,955
	Commercial real estate debt		—			—			151,275			—			151,275
	Asset-backed securities		—			—			12,234			—			12,234
	Common and preferred stock		—			—			47,002			—			47,002
	Commercial mortgage-backed securities		—			—			41,961			—			41,961
	Bank debt		—			—			21,255			—			21,255
	Other investments		457			70			183			(400	)		310
	Financial Assets, at Fair Value, Included Within Investments, at Fair Value	$	73,515		$	70		$	1,671,441		$	(400	)	$	1,744,626
	Financial Liabilities, at Fair Value, Included Within Other Liabilities of Och-Ziff Funds	$	374		$	48		$	1,087		$	(400	)	$	1,109
Schedule of Changes in Company's Level III Assets and Liabilities	'
	The following table summarizes the changes in the Company’s Level III assets and liabilities for the three months ended September 30, 2013:
		Balance as of			Investment			Investment			Derivative Settlements			Net Gains (Losses)			Balance as of
		June 30, 2013			Purchases			Sales						of Consolidated			September 30, 2013
														Och-Ziff Funds
		(dollars in thousands)
	Real estate investments	$	715,682		$	10,343		$	(104,928	)	$	—		$	11,053		$	632,150
	Residential mortgage-backed securities		347,805			36,091			(25,415	)		—			38			358,519
	Collateralized debt obligations		257,604			4,993			(23,508	)		—			8,293			247,382
	Energy and natural resources limited partnerships		154,005			11,825			—			—			(1,143	)		164,687
	Investments in affiliated funds		129,806			34,755			(17,890	)		—			9,065			155,736
	Commercial real estate debt		153,712			8,440			(32,828	)		—			1,399			130,723
	Asset-backed securities		60,226			9,112			(33,178	)		—			1,609			37,769
	Common and preferred stock		43,196			22			(10,259	)		—			1,350			34,309
	Commercial mortgage-backed securities		27,715			—			(5,221	)		—			7,342			29,836
	Bank debt		15,634			9,602			(9,971	)		—			159			15,424
	Other investments (including derivatives, net)		(1,746	)		—			—			1,537			973			764
	Total, at Fair Value	$	1,903,639		$	125,183		$	(263,198	)	$	1,537		$	40,138		$	1,807,299
	The following table summarizes the changes in the Company’s Level III assets and liabilities for the three months ended September 30, 2012:
		Balance as of			Investment			Investment Sales			Derivative Settlements			Net Gains (Losses)			Balance as of
		June 30, 2012			Purchases									of Consolidated			September 30, 2012
														Och-Ziff Funds
		(dollars in thousands)
	Real estate investments	$	379,232		$	56,092		$	(9,684	)	$	—		$	16,427		$	442,067
	Residential mortgage-backed securities		177,236			71,061			(31,414	)		—			11,354			228,237
	Collateralized debt obligations		132,212			65,817			(12,809	)		—			15,137			200,357
	Energy and natural resources limited partnerships		141,172			4,518			—			—			7,523			153,213
	Investments in affiliated funds		33,707			49,274			(19,744	)		—			8,578			71,815
	Commercial real estate debt		110,897			47,763			(4,205	)		—			(4,748	)		149,707
	Asset-backed securities		—			14,910			(1,118	)		—			(208	)		13,584
	Common and preferred stock		29,964			20,875			—			—			1,149			51,988
	Commercial mortgage-backed securities		49,047			465			(3,953	)		—			2,614			48,173
	Bank debt		1,257			3,319			(832	)		—			357			4,101
	Other investments (including derivatives, net)		856			—			(2,908	)		72			954			(1,026	)
	Total, at Fair Value	$	1,055,580		$	334,094		$	(86,667	)	$	72		$	59,137		$	1,362,216
	The following table summarizes the changes in the Company’s Level III assets and liabilities for the nine months ended September 30, 2013:
		Balance as of			Investment			Investment Sales			Derivative Settlements			Net Gains (Losses)			Balance as of
		December 31, 2012			Purchases									of Consolidated			September 30, 2013
														Och-Ziff Funds
		(dollars in thousands)
	Real estate investments	$	615,634		$	195,636		$	(277,781	)	$	—		$	98,661		$	632,150
	Residential mortgage-backed securities		260,410			211,817			(112,246	)		—			(1,462	)		358,519
	Collateralized debt obligations		265,722			35,386			(90,514	)		—			36,788			247,382
	Energy and natural resources limited partnerships		167,467			41,291			(53,269	)		—			9,198			164,687
	Investments in affiliated funds		88,298			136,256			(87,821	)		—			19,003			155,736
	Commercial real estate debt		151,275			62,307			(86,537	)		—			3,678			130,723
	Asset-backed securities		12,234			63,515			(37,353	)		—			(627	)		37,769
	Common and preferred stock		47,002			747			(16,267	)		—			2,827			34,309
	Commercial mortgage-backed securities		41,961			14,045			(35,282	)		—			9,112			29,836
	Bank debt		21,255			18,680			(26,466	)		—			1,955			15,424
	Other investments (including derivatives, net)		(904	)		—			—			(3,389	)		5,057			764
	Total, at Fair Value	$	1,670,354		$	779,680		$	(823,536	)	$	(3,389	)	$	184,190		$	1,807,299
	The following table summarizes the changes in the Company’s Level III assets and liabilities for the nine months ended September 30, 2012:
		Balance as of			Investment			Investment Sales			Derivative Settlements			Net Gains (Losses)			Balance as of
		December 31, 2011			Purchases									of Consolidated			September 30, 2012
														Och-Ziff Funds
		(dollars in thousands)
	Real estate investments	$	308,019		$	127,792		$	(29,914	)	$	—		$	36,170		$	442,067
	Residential mortgage-backed securities		147,426			246,724			(190,634	)		—			24,721			228,237
	Collateralized debt obligations		44,060			162,966			(36,153	)		—			29,484			200,357
	Energy and natural resources limited partnerships		100,827			6,396			(3,777	)		—			49,767			153,213
	Investments in affiliated funds		—			80,799			(19,744	)		—			10,760			71,815
	Commercial real estate debt		82,439			100,623			(21,509	)		—			(11,846	)		149,707
	Asset-backed securities		—			14,910			(1,118	)		—			(208	)		13,584
Common and preferred stock		—			50,450			—			—			1,538			51,988
Commercial mortgage-backed securities		27,256			31,686			(15,051	)		—			4,282			48,173
Bank debt		—			4,657			(832	)		—			276			4,101
Other investments (including derivatives, net)		2,885			—			(2,908	)		(2,891	)		1,888			(1,026	)
Total, at Fair Value	$	712,912		$	827,003		$	(321,640	)	$	(2,891	)	$	146,832		$	1,362,216
Schedule of Net Unrealized Gains (Losses) on Company's Level III Assets and Liabilities	'
	The table below summarizes the net change in unrealized gains and losses on the Company’s Level III investments held as of the reporting date. These gains and losses are included within net gains of consolidated Och-Ziff funds in the Company’s consolidated statements of comprehensive income (loss):
		Three Months Ended September 30,						Nine Months Ended September 30,
		2013			2012			2013			2012
		(dollars in thousands)
	Real estate investments	$	(15,193	)	$	13,863		$	46,947		$	31,807
	Residential mortgage-backed securities		(2,981	)		6,223			(17,586	)		10,075
	Collateralized debt obligations		1,009			16,615			7,468			19,820
	Energy and natural resources limited partnerships		(1,143	)		7,522			9,198			48,739
	Investments in affiliated funds		8,900			7,124			10,635			7,973
	Commercial real estate debt		565			(5,061	)		(929	)		(14,205	)
	Asset-backed securities		2,462			(155	)		141			(155	)
	Common and preferred stock		2,851			1,149			3,941			1,538
	Commercial mortgage-backed securities		6,675			2,382			(2,565	)		3,835
	Bank debt		81			331			51			250
	Other investments (including derivatives, net)		2,551			490			1,423			1,341
	Total	$	5,777		$	50,483		$	58,724		$	111,018
Schedule of Fair Value Inputs Assets and Liabilities Quantitative Information	'
	The table below summarizes information about the significant unobservable inputs used in determining the fair value of the Level III assets and liabilities held by the consolidated funds. Level III investments not presented in the table below generally do not have any unobservable inputs to disclose, as they are valued primarily using broker quotes, invested capital for recent transactions or net asset value for investments in affiliated funds. These assets and liabilities belong to the investors in the consolidated funds and the Company has a minimal, if any, investment in such funds.
		Fair Value at
		September 30, 2013
	Type of Investment	(in thousands)			Valuation Technique		Unobservable Input	Range
	Real estate investments	$	632,150		Discounted cash flow		Discount rate		9.5% - 30.0%
							Cash flow growth rate		(19.8%) - 32.0%
							Capitalization rate		7.4% - 11.7%
							Price per square foot		$53.29 - $750.00
							Absorption rate per year		2.8% - 35.0%
							Exit multiple		6.1x
							Credit spread		1225 bps
	Residential mortgage-backed securities	$	15,969		Discounted cash flow		Discount rate		11.0% - 21.0%
							Credit spread		675 - 1225 bps
	Energy and natural resources limited partnerships	$	112,513		Net asset value		Illiquidity discount		20.00%
		$	8,574		Discounted cash flow		Energy differentials		10.00%
							Discount rate		15.00%
							Price of natural gas per thousand cubic feet	$	4.74
							Price of oil per barrel	$	80
	Common and preferred stock	$	12,160		Discounted cash flow		Discount rate		22.00%
							Exit multiple		5.2x

Balance_Sheet_Offsetting_Table

Balance Sheet Offsetting (Tables)	9 Months Ended
	Sep. 30, 2013
Text Block [Abstract]	'
Balance Sheet Offsetting	'
	The table below presents the repurchase agreements that are set off, if any, as well as collateral received related to those repurchase agreements. No other material financial instruments were subject to master netting agreements or other similar agreements.
	Securities Sold Under Agreements to Repurchase	Gross Amounts of		Gross Amounts		Net Amounts of		Financial		Net Amount
		Recognized		Offset in the		Liabilities in the		Instruments and
		Liabilities		Consolidated Balance		Consolidated Balance		Collateral Delivered
				Sheet		Sheet
		(dollars in thousands)
	As of September 30, 2013	$	301,778		—		301,778		301,778	$	—
	As of December 31, 2012	$	223,543		—		223,543		223,543	$	—

Variable_Interest_Entities_Tab

Variable Interest Entities (Tables)	9 Months Ended
	Sep. 30, 2013
Text Block [Abstract]	'
Assets and Liabilities of Funds that are VIEs and Consolidated by Company	'
	The following table presents the assets and liabilities of funds that are VIEs and consolidated by the Company:
		September 30, 2013		December 31, 2012
		(dollars in thousands)
	Assets
	Assets of consolidated Och-Ziff funds:
	Investments, at fair value	$	686,748	$	585,537
	Other assets of Och-Ziff funds		24,087		17,973
	Total Assets	$	710,835	$	603,510
	Liabilities
	Liabilities of consolidated Och-Ziff funds:
	Securities sold under agreements to repurchase	$	82,162	$	65,449
	Other liabilities of Och-Ziff funds		15,391		1,993
	Total Liabilities	$	97,553	$	67,442

Other_Assets_Net_Tables

Other Assets, Net (Tables)	9 Months Ended
	Sep. 30, 2013
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]	'
Components of Other Assets	'
	The following table presents the components of other assets, net as reported in the consolidated balance sheets:
		September 30, 2013			December 31, 2012
		(dollars in thousands)
	Fixed Assets:
	Corporate aircraft	$	22,600		$	22,600
	Leasehold improvements		21,613			21,579
	Computer hardware and software		20,865			18,682
	Furniture, fixtures and equipment		3,146			3,123
	Accumulated depreciation and amortization		(50,697	)		(45,139	)
	Fixed assets, net		17,527			20,845
	Goodwill		22,691			22,691
	Receivables		18,443			2,107
	Investment in Och-Ziff CLO		15,000			—
	Prepaid expenses		5,744			10,530
	Refundable security deposits		5,303			5,765
	Investments in joint ventures		5,003			4,654
	Investments in Och-Ziff funds		2,813			1,658
	Intangible assets, net		2,299			2,859
	Other		897			1,129
	Total Other Assets, Net	$	95,720		$	72,238

Other_Liabilities_Tables

Other Liabilities (Tables)	9 Months Ended
	Sep. 30, 2013
Other Liabilities Disclosure [Abstract]	'
Components of Other Liabilities	'
	The following table presents the components of other liabilities as reported in the consolidated balance sheets:
		September 30, 2013		December 31, 2012
		(dollars in thousands)
	Deferred income of consolidated Och-Ziff funds	$	130,234	$	78,992
	Accrued expenses		31,370		20,910
	Deferred rent credit		15,529		14,498
	Current income taxes payable		2,536		3,331
	Other		997		1,798
	Total Other Liabilities	$	180,666	$	119,529

General_Administrative_and_Oth1

General, Administrative and Other (Tables)	9 Months Ended
	Sep. 30, 2013
Other Income And Expenses [Abstract]	'
Components of General, Administrative and Other Expenses	'
	The following table presents the components of general, administrative and other expenses as reported in the consolidated statements of comprehensive income (loss):
		Three Months Ended September 30,						Nine Months Ended September 30,
		2013			2012			2013			2012
		(dollars in thousands)
	Professional services	$	8,589		$	7,538		$	34,777		$	19,168
	Occupancy and equipment		7,314			6,869			22,504			20,620
	Recurring placement and related service fees		8,190			5,955			22,056			17,256
	Information processing and communications		5,340			4,312			15,223			14,197
	Business development		2,649			2,033			7,803			6,748
	Insurance		1,920			1,919			5,653			5,738
	Other expenses		3,456			3,535			9,021			9,685
			37,458			32,161			117,037			93,412
	Changes in tax receivable agreement liability		(1,071	)		(1,519	)		(1,054	)		(1,570	)
	Total General, Administrative and Other	$	36,387		$	30,642		$	115,983		$	91,842

Earnings_Loss_Per_Class_A_Shar1

Earnings (Loss) Per Class A Share (Tables)	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Computation of Basic and Diluted Earnings (Loss) Per Class A Share	'
	The following tables present the computation of basic and diluted earnings (loss) per Class A Share:
		Net Income			Weighted-		Earnings Per			Number of
		Allocated to			Average Class		Class A			Antidilutive Units
		Class A			A Shares		Share			Excluded from
		Shareholders			Outstanding					Diluted Calculation
		(dollars in thousands, except per share amounts)
	Three Months Ended September 30, 2013
	Basic	$	24,895			156,752,496	$	0.16
	Effect of dilutive securities:
	Och-Ziff Operating Group A Units		39,527			312,852,072					—
	RSUs		—			5,676,744					—
	Diluted	$	64,422			475,281,312	$	0.14
		Net Loss			Weighted-		Loss			Number of
		Allocated to			Average Class		Per Class A			Antidilutive Units
		Class A			A Shares		Share			Excluded from
		Shareholders			Outstanding					Diluted Calculation
		(dollars in thousands, except per share amounts)
	Three Months Ended September 30, 2012
	Basic	$	(127,509	)		143,477,776	$	(0.89	)
	Effect of dilutive securities:
	Och-Ziff Operating Group A Units		—			—					294,186,978
	RSUs		—			—					8,505,301
	Diluted	$	(127,509	)		143,477,776	$	(0.89	)
		Net Income			Weighted-		Earnings Per			Number of
		Allocated to			Average Class		Class A			Antidilutive Units
		Class A			A Shares		Share			Excluded from
		Shareholders			Outstanding					Diluted Calculation
		(dollars in thousands, except per share amounts)
	Nine Months Ended September 30, 2013
	Basic	$	55,861			153,160,992	$	0.36
	Effect of dilutive securities:
	Och-Ziff Operating Group A Units		—			—					309,229,588
	RSUs		—			3,506,508					—
	Diluted	$	55,861			156,667,500	$	0.36
		Net Loss			Weighted-		Loss			Number of
		Allocated to			Average Class		Per Class A			Antidilutive Units
		Class A			A Shares		Share			Excluded from
		Shareholders			Outstanding					Diluted Calculation
		(dollars in thousands, except per share amounts)
	Nine Months Ended September 30, 2012
	Basic	$	(366,495	)		142,036,892	$	(2.58	)
	Effect of dilutive securities:
	Och-Ziff Operating Group A Units		—			—					294,186,978
	RSUs		—			—					8,505,301
	Diluted	$	(366,495	)		142,036,892	$	(2.58	)

Related_Party_Transactions_Tab

Related Party Transactions (Tables)	9 Months Ended
	Sep. 30, 2013
Related Party Transactions [Abstract]	'
Management Fees and Incentive Income Earned from Related Parties and Waived Fees	'
	The following table presents management fees and incentive income charged on investments held by related parties and amounts waived by the Company for related parties before the impact of eliminations related to the consolidated funds:
		Three Months Ended September 30,				Nine Months Ended September 30,
		2013		2012		2013		2012
		(dollars in thousands)
	Fees charged on investments held by related parties:
	Management fees	$	7,271	$	6,734	$	22,106	$	19,135
	Incentive income	$	1,776	$	502	$	3,491	$	1,140
	Fees waived on investments held by related parties:
	Management fees	$	3,577	$	3,277	$	10,596	$	9,726

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2013
Commitments And Contingencies Disclosure [Abstract]	'
Future Minimum Lease Payments for Operating Leases	'
	The table below presents total future minimum lease payments for the Company’s operating leases with original or remaining noncancelable lease terms in excess of one year, including the extension discussed above.
		Minimum Lease
		Payments
		(dollars in thousands)
	Remainder of 2013	$	5,227
	2014		20,464
	2015		21,943
	2016		23,444
	2017		23,442
	Thereafter		219,296
	Total Minimum Lease Payments	$	313,816

Segment_Information_Tables

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]	'
Och-Ziff Funds Segment Results	'
	Och-Ziff Funds Segment Results
			Three Months Ended September 30,						Nine Months Ended September 30,
			2013			2012			2013			2012
			(dollars in thousands)
	Och-Ziff Funds Segment:
	Economic Income Revenues		$	208,021		$	127,457		$	589,089		$	383,928
	Economic Income		$	153,535		$	80,042		$	424,461		$	248,691
Reconciliation of Och-Ziff Funds Segment Revenues to Consolidated Revenues	'
	Reconciliation of Och-Ziff Funds Segment Revenues to Consolidated Revenues
			Three Months Ended September 30,						Nine Months Ended September 30,
			2013			2012			2013			2012
			(dollars in thousands)
	Total consolidated revenues		$	256,871		$	167,973		$	735,077		$	487,319
	Adjustment to management fees(1)			(5,347	)		(3,886	)		(14,003	)		(12,359	)
	Adjustment to incentive income(2)			—			—			1,114			—
	Other Operations revenues			(2,691	)		(2,925	)		(8,238	)		(7,774	)
	Income of consolidated Och-Ziff funds			(40,812	)		(33,705	)		(124,861	)		(83,258	)
	Economic Income Revenues - Och-Ziff Funds Segment		$	208,021		$	127,457		$	589,089		$	383,928
	-1	Adjustment to present management fees net of recurring placement and related service fees, as management considers these fees a reduction in management fees, not an expense. The impact of eliminations related to the consolidated Och-Ziff funds is also removed.
	-2	Adjustment to exclude the impact of eliminations related to the consolidated funds.
Reconciliation of Och-Ziff Funds Economic Income to Net Income (Loss) Allocated to Class A Shareholders	'
	Reconciliation of Och-Ziff Funds Economic Income to Net Income (Loss) Allocated to Class A Shareholders
			Three Months Ended September 30,						Nine Months Ended September 30,
			2013			2012			2013			2012
			(dollars in thousands)
	Net income (loss) allocated to Class A Shareholders		$	24,895		$	(127,509	)	$	55,861		$	(366,495	)
	Net income (loss) allocated to the Och-Ziff Operating Group A Units			69,089			(231,234	)		192,362			(689,883	)
	Equity-based compensation			36,389			16,219			99,426			50,294
	Income taxes			14,786			19,127			49,803			46,022
	Reorganization expenses			4,022			398,503			12,064			1,195,335
	Adjustment for expenses related to compensation arrangements based on fund investment performance			4,324			3,643			7,603			6,608
	Depreciation and amortization			2,022			2,406			6,344			7,085
	Allocations to Och-Ziff Operating Group D Units			—			1,812			5,590			4,244
	Other Operations			(686	)		(1,244	)		(2,487	)		(2,464	)
	Changes in tax receivable agreement liability			(1,071	)		(1,519	)		(1,054	)		(1,570	)
	Other adjustments			(235	)		(162	)		1,051			(485	)
	Economic Income - Och-Ziff Funds Segment		$	153,535		$	80,042		$	424,461		$	248,691

Noncontrolling_Interests_Compo

Noncontrolling Interests - Components of Net Income (Loss) Allocated to Noncontrolling Interests (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
Noncontrolling Interest [Line Items]	'	'	'	'
Noncontrolling interests	$120,742	($161,632)	$414,741	($515,363)
Och-Ziff Operating Group A Units [Member]	'	'	'	'
Noncontrolling Interest [Line Items]	'	'	'	'
Noncontrolling interests	69,089	-231,234	192,362	-689,883
Consolidated Och-Ziff funds [Member]	'	'	'	'
Noncontrolling Interest [Line Items]	'	'	'	'
Noncontrolling interests	51,243	69,010	220,836	173,146
Other [Member]	'	'	'	'
Noncontrolling Interest [Line Items]	'	'	'	'
Noncontrolling interests	$410	$592	$1,543	$1,374

Noncontrolling_Interests_Addit

Noncontrolling Interests - Additional Information (Detail)	Sep. 30, 2013	Nov. 19, 2007	Sep. 30, 2013	Nov. 30, 2011	Nov. 19, 2007	Nov. 19, 2007
	Och-Ziff Operating Group [Member]	Och-Ziff Operating Group [Member]	Class A Shares [Member]	Class A Shares [Member]	Class A Shares [Member]	Class A Shares [Member]
				2011 Offering [Member]	IPO [Member]	DIC Sahir [Member]
Noncontrolling Interest [Line Items]	'	'	'	'	'	'
Issuance of shares	'	'	'	33,333,333	36,000,000	38,138,571
Percentage of ownership in the Och-Ziff Operating Group	34.00%	19.20%	'	'	'	'
Group A Units Exchanged for Class A Shares	'	'	11,000,000	'	'	'

Noncontrolling_Interests_Chang

Noncontrolling Interests - Changes to Shareholders' Equity Related to Group A Unit Transactions (Detail) (Och-Ziff Operating Group A Units [Member], USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013
Paid-in Capital [Member]	'
Noncontrolling Interest [Line Items]	'
Deferred income tax assets resulting from exchanges, net of increases in the tax receivable agreement liability	$8,290
Deficit capital reallocated from noncontrolling interests to the Company's paid-in capital	-3,493
Och-Ziff Operating Group A Unit transactions	4,797
Shareholders' Equity Attributable to Noncontrolling Interests [Member]	'
Noncontrolling Interest [Line Items]	'
Deferred income tax assets resulting from exchanges, net of increases in the tax receivable agreement liability	'
Deficit capital reallocated from noncontrolling interests to the Company's paid-in capital	3,493
Och-Ziff Operating Group A Unit transactions	$3,493

Fair_Value_Disclosures_Schedul

Fair Value Disclosures - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (Fair Value, Measurements, Recurring [Member], 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]	'	'
Real estate investments	$632,150	$615,634
Residential mortgage-backed securities	358,716	260,513
Collateralized debt obligations	247,382	265,722
Energy and natural resources limited partnerships	164,687	167,467
Investments in affiliated funds	155,736	88,298
United States government obligations	154,978	72,955
Commercial real estate debt	130,723	151,275
Asset-backed securities	37,769	12,234
Common and preferred stock	34,309	47,002
Commercial mortgage-backed securities	29,836	41,961
Bank debt	15,424	21,255
Other investments	2,058	310
Financial Assets, at Fair Value, Included Within Investments, at Fair Value	1,963,768	1,744,626
Financial Liabilities, at Fair Value, Included Within Other Liabilities of Och-Ziff Funds	4,541	1,109
Fair Value, Inputs, Level I [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Real estate investments	'	'
Residential mortgage-backed securities	197	103
Collateralized debt obligations	'	'
Energy and natural resources limited partnerships	'	'
Investments in affiliated funds	'	'
United States government obligations	154,978	72,955
Commercial real estate debt	'	'
Asset-backed securities	'	'
Common and preferred stock	'	'
Commercial mortgage-backed securities	'	'
Bank debt	'	'
Other investments	80	457
Financial Assets, at Fair Value, Included Within Investments, at Fair Value	155,255	73,515
Financial Liabilities, at Fair Value, Included Within Other Liabilities of Och-Ziff Funds	2,987	374
Fair Value, Inputs, Level II [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Real estate investments	'	'
Residential mortgage-backed securities	'	'
Collateralized debt obligations	'	'
Energy and natural resources limited partnerships	'	'
Investments in affiliated funds	'	'
United States government obligations	'	'
Commercial real estate debt	'	'
Asset-backed securities	'	'
Common and preferred stock	'	'
Commercial mortgage-backed securities	'	'
Bank debt	'	'
Other investments	64	70
Financial Assets, at Fair Value, Included Within Investments, at Fair Value	64	70
Financial Liabilities, at Fair Value, Included Within Other Liabilities of Och-Ziff Funds	404	48
Fair Value, Inputs, Level III [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Real estate investments	632,150	615,634
Residential mortgage-backed securities	358,519	260,410
Collateralized debt obligations	247,382	265,722
Energy and natural resources limited partnerships	164,687	167,467
Investments in affiliated funds	155,736	88,298
United States government obligations	'	'
Commercial real estate debt	130,723	151,275
Asset-backed securities	37,769	12,234
Common and preferred stock	34,309	47,002
Commercial mortgage-backed securities	29,836	41,961
Bank debt	15,424	21,255
Other investments	2,768	183
Financial Assets, at Fair Value, Included Within Investments, at Fair Value	1,809,303	1,671,441
Financial Liabilities, at Fair Value, Included Within Other Liabilities of Och-Ziff Funds	2,004	1,087
Counterparty Netting of Derivative Contracts [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Real estate investments	'	'
Residential mortgage-backed securities	'	'
Collateralized debt obligations	'	'
Energy and natural resources limited partnerships	'	'
Investments in affiliated funds	'	'
United States government obligations	'	'
Commercial real estate debt	'	'
Asset-backed securities	'	'
Common and preferred stock	'	'
Commercial mortgage-backed securities	'	'
Bank debt	'	'
Other investments	-854	-400
Financial Assets, at Fair Value, Included Within Investments, at Fair Value	-854	-400
Financial Liabilities, at Fair Value, Included Within Other Liabilities of Och-Ziff Funds	($854)	($400)

Fair_Value_Disclosures_Schedul1

Fair Value Disclosures - Schedule of Changes in Company's Level III Assets and Liabilities (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 And Liabilities Measured On Recurring Basis [Line Items]	'	'	'	'
Beginning Balance	$1,903,639	$1,055,580	$1,670,354	$712,912
Investment Purchases	125,183	334,094	779,680	827,003
Investment Sales	-263,198	-86,667	-823,536	-321,640
Derivative Settlements	1,537	72	-3,389	-2,891
Net Gains (Losses) of Consolidated Och-Ziff Funds	40,138	59,137	184,190	146,832
Ending Balance	1,807,299	1,362,216	1,807,299	1,362,216
Real estate investments [Member]	'	'	'	'
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]	'	'	'	'
Beginning Balance	715,682	379,232	615,634	308,019
Investment Purchases	10,343	56,092	195,636	127,792
Investment Sales	-104,928	-9,684	-277,781	-29,914
Derivative Settlements	'	'	'	'
Net Gains (Losses) of Consolidated Och-Ziff Funds	11,053	16,427	98,661	36,170
Ending Balance	632,150	442,067	632,150	442,067
Residential mortgage-backed securities [Member]	'	'	'	'
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]	'	'	'	'
Beginning Balance	347,805	177,236	260,410	147,426
Investment Purchases	36,091	71,061	211,817	246,724
Investment Sales	-25,415	-31,414	-112,246	-190,634
Derivative Settlements	'	'	'	'
Net Gains (Losses) of Consolidated Och-Ziff Funds	38	11,354	-1,462	24,721
Ending Balance	358,519	228,237	358,519	228,237
Collateralized debt obligations [Member]	'	'	'	'
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]	'	'	'	'
Beginning Balance	257,604	132,212	265,722	44,060
Investment Purchases	4,993	65,817	35,386	162,966
Investment Sales	-23,508	-12,809	-90,514	-36,153
Derivative Settlements	'	'	'	'
Net Gains (Losses) of Consolidated Och-Ziff Funds	8,293	15,137	36,788	29,484
Ending Balance	247,382	200,357	247,382	200,357
Energy and natural resources limited partnerships [Member]	'	'	'	'
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]	'	'	'	'
Beginning Balance	154,005	141,172	167,467	100,827
Investment Purchases	11,825	4,518	41,291	6,396
Investment Sales	'	'	-53,269	-3,777
Derivative Settlements	'	'	'	'
Net Gains (Losses) of Consolidated Och-Ziff Funds	-1,143	7,523	9,198	49,767
Ending Balance	164,687	153,213	164,687	153,213
Investments in affiliated funds [Member]	'	'	'	'
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]	'	'	'	'
Beginning Balance	129,806	33,707	88,298	'
Investment Purchases	34,755	49,274	136,256	80,799
Investment Sales	-17,890	-19,744	-87,821	-19,744
Derivative Settlements	'	'	'	'
Net Gains (Losses) of Consolidated Och-Ziff Funds	9,065	8,578	19,003	10,760
Ending Balance	155,736	71,815	155,736	71,815
Commercial real estate debt [Member]	'	'	'	'
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]	'	'	'	'
Beginning Balance	153,712	110,897	151,275	82,439
Investment Purchases	8,440	47,763	62,307	100,623
Investment Sales	-32,828	-4,205	-86,537	-21,509
Derivative Settlements	'	'	'	'
Net Gains (Losses) of Consolidated Och-Ziff Funds	1,399	-4,748	3,678	-11,846
Ending Balance	130,723	149,707	130,723	149,707
Asset-backed securities [Member]	'	'	'	'
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]	'	'	'	'
Beginning Balance	60,226	'	12,234	'
Investment Purchases	9,112	14,910	63,515	14,910
Investment Sales	-33,178	-1,118	-37,353	-1,118
Derivative Settlements	'	'	'	'
Net Gains (Losses) of Consolidated Och-Ziff Funds	1,609	-208	-627	-208
Ending Balance	37,769	13,584	37,769	13,584
Common and preferred stock [Member]	'	'	'	'
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]	'	'	'	'
Beginning Balance	43,196	29,964	47,002	'
Investment Purchases	22	20,875	747	50,450
Investment Sales	-10,259	'	-16,267	'
Derivative Settlements	'	'	'	'
Net Gains (Losses) of Consolidated Och-Ziff Funds	1,350	1,149	2,827	1,538
Ending Balance	34,309	51,988	34,309	51,988
Commercial mortgage-backed securities [Member]	'	'	'	'
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]	'	'	'	'
Beginning Balance	27,715	49,047	41,961	27,256
Investment Purchases	'	465	14,045	31,686
Investment Sales	-5,221	-3,953	-35,282	-15,051
Derivative Settlements	'	'	'	'
Net Gains (Losses) of Consolidated Och-Ziff Funds	7,342	2,614	9,112	4,282
Ending Balance	29,836	48,173	29,836	48,173
Bank debt [Member]	'	'	'	'
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]	'	'	'	'
Beginning Balance	15,634	1,257	21,255	'
Investment Purchases	9,602	3,319	18,680	4,657
Investment Sales	-9,971	-832	-26,466	-832
Derivative Settlements	'	'	'	'
Net Gains (Losses) of Consolidated Och-Ziff Funds	159	357	1,955	276
Ending Balance	15,424	4,101	15,424	4,101
Other investments [Member]	'	'	'	'
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]	'	'	'	'
Beginning Balance	-1,746	856	-904	2,885
Investment Purchases	'	'	'	'
Investment Sales	'	-2,908	'	-2,908
Derivative Settlements	1,537	72	-3,389	-2,891
Net Gains (Losses) of Consolidated Och-Ziff Funds	973	954	5,057	1,888
Ending Balance	$764	($1,026)	$764	($1,026)

Fair_Value_Disclosures_Schedul2

Fair Value Disclosures - Schedule of Net Unrealized Gains (Losses) on Company's Level III Assets and Liabilities (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 [Line Items]	'	'	'	'
Unrealized gains (losses) on Level III assets and liabilities held as of the balance sheet date	$5,777	$50,483	$58,724	$111,018
Real estate investments [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Unrealized gains (losses) on Level III assets and liabilities held as of the balance sheet date	-15,193	13,863	46,947	31,807
Residential mortgage-backed securities [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Unrealized gains (losses) on Level III assets and liabilities held as of the balance sheet date	-2,981	6,223	-17,586	10,075
Collateralized debt obligations [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Unrealized gains (losses) on Level III assets and liabilities held as of the balance sheet date	1,009	16,615	7,468	19,820
Energy and natural resources limited partnerships [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Unrealized gains (losses) on Level III assets and liabilities held as of the balance sheet date	-1,143	7,522	9,198	48,739
Investments in affiliated funds [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Unrealized gains (losses) on Level III assets and liabilities held as of the balance sheet date	8,900	7,124	10,635	7,973
Commercial real estate debt [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Unrealized gains (losses) on Level III assets and liabilities held as of the balance sheet date	565	-5,061	-929	-14,205
Asset-backed securities [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Unrealized gains (losses) on Level III assets and liabilities held as of the balance sheet date	2,462	-155	141	-155
Common and preferred stock [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Unrealized gains (losses) on Level III assets and liabilities held as of the balance sheet date	2,851	1,149	3,941	1,538
Commercial mortgage-backed securities [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Unrealized gains (losses) on Level III assets and liabilities held as of the balance sheet date	6,675	2,382	-2,565	3,835
Bank debt [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Unrealized gains (losses) on Level III assets and liabilities held as of the balance sheet date	81	331	51	250
Other investments [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Unrealized gains (losses) on Level III assets and liabilities held as of the balance sheet date	$2,551	$490	$1,423	$1,341

Fair_Value_Disclosures_Schedul3

Fair Value Disclosures - Schedule of Fair Value Inputs Assets and Liabilities Quantitative Information (Detail) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013
Real estate investments [Member] | Discounted cash flow [Member]	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'
Exit multiple	6.1
Credit spread	12.25%
Real estate investments [Member] | Discounted cash flow [Member] | Fair Value, Inputs, Level III [Member]	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'
Fair Value at September 30, 2013	632,150
Real estate investments [Member] | Discounted cash flow [Member] | Minimum [Member]	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'
Discount rate	9.50%
Cash flow growth rate	-19.80%
Capitalization rate	7.40%
Price per square foot	53.29
Absorption rate per year	2.80%
Real estate investments [Member] | Discounted cash flow [Member] | Maximum [Member]	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'
Discount rate	30.00%
Cash flow growth rate	32.00%
Capitalization rate	11.70%
Price per square foot	750
Absorption rate per year	35.00%
Residential mortgage-backed securities [Member] | Discounted cash flow [Member] | Fair Value, Inputs, Level III [Member]	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'
Fair Value at September 30, 2013	15,969
Residential mortgage-backed securities [Member] | Discounted cash flow [Member] | Minimum [Member]	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'
Discount rate	11.00%
Credit spread	6.75%
Residential mortgage-backed securities [Member] | Discounted cash flow [Member] | Maximum [Member]	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'
Discount rate	21.00%
Credit spread	12.25%
Energy and natural resources limited partnerships [Member] | Discounted cash flow [Member]	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'
Energy differentials	10.00%
Discount rate	15.00%
Price of natural gas per thousand cubic feet	4.74
Price of oil per barrel	80
Energy and natural resources limited partnerships [Member] | Discounted cash flow [Member] | Fair Value, Inputs, Level III [Member]	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'
Fair Value at September 30, 2013	8,574
Energy and natural resources limited partnerships [Member] | Net asset value [Member]	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'
Illiquidity discount	20.00%
Energy and natural resources limited partnerships [Member] | Net asset value [Member] | Fair Value, Inputs, Level III [Member]	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'
Fair Value at September 30, 2013	112,513
Common and preferred stock [Member] | Discounted cash flow [Member]	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'
Discount rate	22.00%
Exit multiple	5.2
Common and preferred stock [Member] | Discounted cash flow [Member] | Fair Value, Inputs, Level III [Member]	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'
Fair Value at September 30, 2013	12,160

Fair_Value_Disclosures_Additio

Fair Value Disclosures - Additional Information (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value Of Other Financial Instrument [Line Items]	'	'
Debt obligations	$385,140	$388,043
Delayed draw term loan [Member]	'	'
Fair Value Of Other Financial Instrument [Line Items]	'	'
Debt obligations	$385,100	'
Fair value of term loan as a percentage of par	94.00%	'

Balance_Sheet_Offsetting_Balan

Balance Sheet Offsetting - Balance Sheet Offsetting (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Offsetting [Abstract]	'	'
Gross Amounts of Recognized Liabilities	$301,778	$223,543
Gross Amounts Offset in the Consolidated Balance Sheet	'	'
Net Amounts of Liabilities in the Consolidated Balance Sheet	301,778	223,543
Financial Instruments and Collateral Delivered	301,778	223,543
Net Amount	'	'

Variable_Interest_Entities_Ass

Variable Interest Entities - Assets and Liabilities of Funds that are VIEs and Consolidated by Company (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Assets of consolidated Och-Ziff funds:	'	'
Investments, at fair value	$1,963,768	$1,744,626
Other assets of Och-Ziff funds	51,907	38,188
Total Assets	3,400,026	3,535,065
Liabilities of consolidated Och-Ziff funds:	'	'
Securities sold under agreements to repurchase	301,778	223,543
Other liabilities of Och-Ziff funds	20,899	3,538
Total Liabilities	1,691,414	1,686,481
Consolidated funds - VIEs [Member]	'	'
Assets of consolidated Och-Ziff funds:	'	'
Investments, at fair value	686,748	585,537
Other assets of Och-Ziff funds	24,087	17,973
Total Assets	710,835	603,510
Liabilities of consolidated Och-Ziff funds:	'	'
Securities sold under agreements to repurchase	82,162	65,449
Other liabilities of Och-Ziff funds	15,391	1,993
Total Liabilities	$97,553	$67,442

Variable_Interest_Entities_Add

Variable Interest Entities - Additional Information (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Variable Interest Entity [Line Items]	'	'
Investments in Och-Ziff CLO	$15,000,000	'
Funds [Member] | Variable Interest Entity, Not Primary Beneficiary [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Net assets of VIEs	31,200,000,000	27,700,000,000
Assets related to variable interests	44,600,000	392,900,000
Collateralized Loan Obligations [Member] | Variable Interest Entity, Not Primary Beneficiary [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Assets related to variable interests	2,300,000	1,600,000
Investments in Och-Ziff CLO	15,000,000	0
Gross assets held by CLOs	2,400,000,000	1,100,000,000
Joint Ventures [Member] | Variable Interest Entity, Not Primary Beneficiary [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Variable interest, exposure to loss	$5,000,000	$4,700,000

Other_Assets_Net_Components_of

Other Assets, Net - Components of Other Assets (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fixed Assets:	'	'
Corporate aircraft	$22,600	$22,600
Leasehold improvements	21,613	21,579
Computer hardware and software	20,865	18,682
Furniture, fixtures and equipment	3,146	3,123
Accumulated depreciation and amortization	-50,697	-45,139
Fixed assets, net	17,527	20,845
Goodwill	22,691	22,691
Receivables	18,443	2,107
Investments in Och-Ziff CLO	15,000	'
Prepaid expenses	5,744	10,530
Refundable security deposits	5,303	5,765
Investments in joint ventures	5,003	4,654
Investments in Och-Ziff funds	2,813	1,658
Intangible assets, net	2,299	2,859
Other	897	1,129
Total Other Assets, Net	$95,720	$72,238

Other_Liabilities_Components_o

Other Liabilities - Components of Other Liabilities (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Other Liabilities Disclosure [Abstract]	'	'
Deferred income of consolidated Och-Ziff funds	$130,234	$78,992
Accrued expenses	31,370	20,910
Deferred rent credit	15,529	14,498
Current income taxes payable	2,536	3,331
Other	997	1,798
Total Other Liabilities	$180,666	$119,529

General_Administrative_and_Oth2

Merger Agreement (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Merger Agreement (Details) [Line Items]	'	'	'	'
Business Combination, Merger Agreement Description	'	'	'On August 7, 2013, Apple REIT Seven, Inc. ("Apple Seven"), Apple REIT Eight, Inc. ("Apple Eight"), Apple REIT Nine, Inc. ("Apple Nine"), Apple Seven Acquisition Sub, Inc. ("Seven Acquisition Sub"), a wholly-owned subsidiary of Apple Nine, and Apple Eight Acquisition Sub, Inc. ("Eight Acquisition Sub"), a wholly-owned subsidiary of Apple Nine, entered into an Agreement and Plan of Merger, as amended (the "Merger Agreement").The Merger Agreement provides for the merger of Apple Seven and Apple Eight with and into Seven Acquisition Sub and Eight Acquisition Sub, respectively, which were formed solely for engaging in the mergers and have not conducted any prior activities.Upon completion of the mergers, the separate corporate existence of Apple Seven and Apple Eight will cease and Seven Acquisition Sub and Eight Acquisition Sub will be the surviving corporations.Pursuant to the terms of the Merger Agreement, upon completion of the mergers the current Apple Nine common shares totaling 182,784,131 will remain outstanding	'
Business Combination, Merger Agreement, Termination Terms	'	'	'Under the Merger Agreement, Apple Seven, Apple Eight and Apple Nine may terminate the Merger Agreement under certain circumstances; however, each of the companies may be required to pay a fee of $1.7 million, plus reasonable third party expenses, to each of the other companies upon such termination.	'
Merger Transaction Costs (in Dollars)	$1,527,000	$0	$1,714,000	$722,000
Apple Seven, Eight and Nine Merger Agreement [Member] | Apple Seven [Member]	'	'	'	'
Merger Agreement (Details) [Line Items]	'	'	'	'
Business Combination, Merger Agreement Description	'	'	'Each issued and outstanding unit of Apple Seven (consisting of one Apple Seven common share together with one Apple Seven Series A preferred share) will be converted into one (the "Apple Seven exchange ratio") common share of Apple Nine, or a total of approximately 90,613,633 common shares (assuming no dissenting shares), and each issued and outstanding Series B convertible preferred share of Apple Seven will be converted into a number of Apple Nine's common shares equal to 24.17104 multiplied by the Apple Seven exchange ratio, or a total of 5,801,050 common shares	'
Business Combination, Unit Exchange Ratio	1	'	1	'
Business Combination, Number of Acquirer Common Shares to be Issued Upon Conversion of Acquiree Units	90,613,633	'	90,613,633	'
Convertible Preferred Stock, Conversion Rate	24.17104	'	24.17104	'
Business Combination, Conversion of Preferred Stock Into Number of Acquirer Common Shares to be Issued	5,801,050	'	5,801,050	'
Estimated Expense Related to the Conversion of the Convertible Preferred Stock, Minimum (in Dollars)	'	'	52,000,000	'
Estimated Expense Related to the Conversion of the Convertible Preferred Stock, Maximum (in Dollars)	'	'	64,000,000	'
Merger Transaction Costs (in Dollars)	'	'	$1,700,000	'
Apple Seven, Eight and Nine Merger Agreement [Member] | Apple Eight [Member]	'	'	'	'
Merger Agreement (Details) [Line Items]	'	'	'	'
Business Combination, Merger Agreement Description	'	'	'Each issued and outstanding unit of Apple Eight (consisting of one Apple Eight common share together with one Apple Eight Series A preferred share) will be converted into 0.85 (the "Apple Eight exchange ratio") common share of Apple Nine, or a total of approximately 78,319,004 common shares (assuming no dissenting shares), and each issued and outstanding Series B convertible preferred share of Apple Eight will be converted into a number of Apple Nine's common shares equal to 24.17104 multiplied by the Apple Eight exchange ratio, or a total of 4,930,892 common shares.	'
Business Combination, Unit Exchange Ratio	0.85	'	0.85	'
Business Combination, Number of Acquirer Common Shares to be Issued Upon Conversion of Acquiree Units	78,319,004	'	78,319,004	'
Convertible Preferred Stock, Conversion Rate	24.17104	'	24.17104	'
Business Combination, Conversion of Preferred Stock Into Number of Acquirer Common Shares to be Issued	4,930,892	'	4,930,892	'
Apple Seven, Eight and Nine Merger Agreement [Member] | Apple Nine [Member]	'	'	'	'
Merger Agreement (Details) [Line Items]	'	'	'	'
Preliminary Minimum Estimate of the Fair Value of the Acquirer's Common Stock, Per Share (in Dollars per share)	$9	'	$9	'
Preliminary Maximum Estimate of the Fair Value of the Acquirer's Common Stock, Per Share (in Dollars per share)	$11	'	$11	'

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Tax Disclosure [Abstract]	'	'	'	'
Provision for income taxes, approximate effective tax rate	9.20%	-7.10%	9.60%	-5.50%

Earnings_Loss_Per_Class_A_Shar2

Earnings (Loss) Per Class A Share - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share [Abstract]	'	'	'	'
Vested RSUs included in weighted-average Class A Shares outstanding	1,600,165	974,989	1,854,084	1,031,288

Earnings_Loss_Per_Class_A_Shar3

Earnings (Loss) Per Class A Share - Computation of Basic and Diluted Earnings (Loss) Per Class A Share (Detail) (USD $)	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
Earnings (Loss) Per Class A Share [Line Items]	'	'	'	'
Net Income (Loss) Allocated to Class A Shareholders, Basic	$24,895	($127,509)	$55,861	($366,495)
Net Income (Loss) Allocated to Class A Shareholders, Diluted	64,422	-127,509	55,861	-366,495
Weighted-Average Class A Shares Outstanding, Basic	156,752,496	143,477,776	153,160,992	142,036,892
Weighted-Average Class A Shares Outstanding, Diluted	475,281,312	143,477,776	156,667,500	142,036,892
Net Earnings (Loss) Per Class A Share, Basic	$0.16	($0.89)	$0.36	($2.58)
Net Earnings (Loss) Per Class A Share, Diluted	$0.14	($0.89)	$0.36	($2.58)
Och-Ziff Operating Group A Units [Member]	'	'	'	'
Earnings (Loss) Per Class A Share [Line Items]	'	'	'	'
Net Income (Loss) Allocated to Class A Shareholders, Effect of dilutive securities	39,527	'	'	'
Weighted-Average Class A Shares Outstanding, Effect of dilutive securities	312,852,072	'	'	'
Number of Antidilutive Units Excluded from Diluted Calculation	'	294,186,978	309,229,588	294,186,978
Restricted Share Units (RSUs) [Member]	'	'	'	'
Earnings (Loss) Per Class A Share [Line Items]	'	'	'	'
Net Income (Loss) Allocated to Class A Shareholders, Effect of dilutive securities	'	'	'	'
Weighted-Average Class A Shares Outstanding, Effect of dilutive securities	5,676,744	'	3,506,508	'
Number of Antidilutive Units Excluded from Diluted Calculation	'	8,505,301	'	8,505,301

Related_Party_Transactions_Man

Related Party Transactions - Management Fees and Incentive Income Earned from Related Parties and Waived Fees (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
Related Party Transaction [Line Items]	'	'	'	'
Management fees	$143,518	$125,896	$413,427	$375,470
Incentive income	72,338	8,081	195,403	27,716
Fees Charged on Investments Held by Related Parties [Member]	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'
Management fees	7,271	6,734	22,106	19,135
Incentive income	1,776	502	3,491	1,140
Fees Waived on Investments Held by Related Parties [Member]	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'
Management fees	$3,577	$3,277	$10,596	$9,726

Related_Party_Transactions_Add

Related Party Transactions - Additional Information (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
Related Party Transactions [Abstract]	'	'	'	'
Personal use of the corporate aircraft, recorded in revenues	$94	$149	$499	$359

Commitments_and_Contingencies_1

Commitments and Contingencies - Additional Information (Detail) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Nov. 19, 2007
Commitments And Contingencies Disclosure [Abstract]	'	'
Percentage of tax savings to be paid under TRA	78.00%	85.00%
Annual commitment to fund joint venture	$4.70	'

Commitments_and_Contingencies_2

Commitments and Contingencies - Future Minimum Lease Payments for Operating Leases (Detail) (USD $)	Sep. 30, 2013
In Thousands, unless otherwise specified
Commitments And Contingencies Disclosure [Abstract]	'
Remainder of 2013	$5,227
2014	20,464
2015	21,943
2016	23,444
2017	23,442
Thereafter	219,296
Total Minimum Lease Payments	$313,816

Segment_Information_OchZiff_Fu

Segment Information - Och-Ziff Funds Segment Results (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
Och-Ziff Funds Segment:	'	'	'	'
Economic Income Revenues	$256,871	$167,973	$735,077	$487,319
Operating Segments [Member] | Och-Ziff Funds Segment [Member]	'	'	'	'
Och-Ziff Funds Segment:	'	'	'	'
Economic Income Revenues	208,021	127,457	589,089	383,928
Economic Income	$153,535	$80,042	$424,461	$248,691

Segment_Information_Reconcilia

Segment Information - Reconciliation of Och-Ziff Funds Segment Revenues to Consolidated Revenues (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]	'		'		'		'
Total Revenues	$256,871		$167,973		$735,077		$487,319
Adjustment to management fees	-5,347	[1]	-3,886	[1]	-14,003	[1]	-12,359	[1]
Adjustment to incentive income	'		'		1,114	[2]	'
Other Operations revenues	-2,691		-2,925		-8,238		-7,774
Income of consolidated Och-Ziff funds	-40,812		-33,705		-124,861		-83,258
Operating Segments [Member] | Och-Ziff Funds Segment [Member]	'		'		'		'
Segment Reporting Information [Line Items]	'		'		'		'
Total Revenues	$208,021		$127,457		$589,089		$383,928
[1]	Adjustment to present management fees net of recurring placement and related service fees, as management considers these fees a reduction in management fees, not an expense. The impact of eliminations related to the consolidated Och-Ziff funds is also removed.
[2]	Adjustment to exclude the impact of eliminations related to the consolidated funds.

Segment_Information_Reconcilia1

Segment Information - Reconciliation of Och-Ziff Funds Economic Income to Net Income (Loss) Allocated to Class A Shareholders (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 (loss) allocated to Class A Shareholders	$24,895	($127,509)	$55,861	($366,495)
Net income (loss) allocated to the Och-Ziff Operating Group A Units	69,089	-231,234	192,362	-689,883
Equity-based compensation	36,389	16,219	99,426	50,294
Income taxes	14,786	19,127	49,803	46,022
Reorganization expenses	4,022	398,503	12,064	1,195,335
Adjustment for expenses related to compensation arrangements based on fund investment performance	4,324	3,643	7,603	6,608
Depreciation and amortization	2,022	2,406	6,344	7,085
Allocations to Och-Ziff Operating Group D Units	'	1,812	5,590	4,244
Other Operations	-686	-1,244	-2,487	-2,464
Changes in tax receivable agreement liability	-1,071	-1,519	-1,054	-1,570
Other adjustments	-235	-162	1,051	-485
Operating Segments [Member] | Och-Ziff Funds Segment [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Economic Income	$153,535	$80,042	$424,461	$248,691

Subsequent_Events_Additional_I

Subsequent Events - Additional Information (Detail) (Class A Shares [Member], Subsequent event [Member], USD $)	1 Months Ended
	Nov. 05, 2013
Class A Shares [Member] | Subsequent event [Member]	'
Subsequent Event [Line Items]	'
Dividend announcement date	5-Nov-13
Cash dividend	$0.25
Dividend payable date	22-Nov-13
Dividend record date	15-Nov-13