Condensed Consolidated Statements of Financial Condition (Unaudited) (Parenthetical) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2018	Dec. 31, 2017
Series A Preferred Units
Preferred units, issued (in shares)	7,200,000
Preferred units, outstanding (in shares)	7,200,000
Series B Preferred Units
Preferred units, issued (in shares)	9,400,000
Preferred units, outstanding (in shares)	9,400,000
Class A Units
Common units, par value (in dollars per share)	$ 0	$ 0
Common units, authorized (in shares)	Unlimited	Unlimited
Common units, issued (in shares)	71,510,743	65,310,226
Common units, outstanding (in shares)	71,510,743	65,310,226
Class B Units
Common units, par value (in dollars per share)	$ 0	$ 0
Common units, authorized (in shares)	Unlimited	Unlimited
Common units, issued (in shares)	85,625,657	90,975,687
Common units, outstanding (in shares)	85,625,657	90,975,687
Oaktree Capital Group Excluding Consolidated Funds
Investments, at fair value	$ 70,719	$ 50,778

Face amount per share of no-par value common stock.

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