Consolidated Statements of Financial Condition (Unaudited) (USD $)	Mar. 31, 2012	Dec. 31, 2011
Assets
Total assets	$ 170,185,613	$ 174,892,163
Liabilities:
Accrued redemptions	3,046,698	4,910,866
Total liabilities	3,046,698	4,910,866
Members' capital:
Members' capital	167,138,915	169,981,297
Total liabilities and members' capital	170,185,613	174,892,163
Blended Strategies Portfolio [Member] | Class 0 units [Member]
Members' capital:
Members' capital	118,715,883	119,087,637
Blended Strategies Portfolio [Member] | Class 2 Units [Member]
Members' capital:
Members' capital	26,729,310	27,546,676
Total Blended Strategies Portfolio [Member]
Members' capital:
Members' capital	145,445,193	146,634,313
Systematic Strategies Portfolio [Member] | Class 0 units [Member]
Members' capital:
Members' capital	8,783,424	9,117,153
Systematic Strategies Portfolio [Member] | Class 2 Units [Member]
Members' capital:
Members' capital	12,910,298	14,229,831
Total Systematic Strategies Portfolio [Member]
Members' capital:
Members' capital	21,693,722	23,346,984
Graham Alternative Investment Trading LLC [Member]
Assets
Investment, at fair value	145,445,193	146,634,313
Redemptions receivable	2,274,842	4,335,458
Graham Alternative Investment Trading II LLC [Member]
Assets
Investment, at fair value	21,693,722	23,346,984
Redemptions receivable	$ 771,856	$ 575,408