Consolidated Statements of Financial Condition (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Class 0 Units [Member]
Members' capital:
Capital units, issued (in units)	456,544.588	657,725.570
Capital units, outstanding (in units)	456,544.588	657,725.570
Capital units, value (in dollars per unit)	$ 127.72	$ 114.88
Class 2 Units [Member]
Members' capital:
Capital units, issued (in units)	186,461.512	203,657.512
Capital units, outstanding (in units)	186,461.512	203,657.512
Capital units, value (in dollars per unit)	$ 98.41	$ 90.29