Fair Value Disclosures - Schedule of Net Unrealized Gains (Losses) on Company's Level III Assets and Liabilities (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Management Company Related \| Investments in CLO
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Unrealized gains (losses) on Level III assets and liabilities held as of the balance sheet date	$ 707	$ 0
Consolidated Och-Ziff funds \| Bank debt
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Unrealized gains (losses) on Level III assets and liabilities held as of the balance sheet date	$ 113	$ 36

Amount of unrealized (holding) gain (loss) which is included in the statement of income (or changes in net assets) related to those assets still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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Period Type:	duration