FINANCIAL DATA HIGHLIGHTS (Parenthetical) (Maximum, USD $)	3 Months Ended	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Maximum
Interest income, net	$ 0.0001	$ 0.0001	$ 0.0001	$ 0.0001

This element represents the impact of interest income on the calculation of net asset value per unit during the reporting period.

No definition available.

Name:	mltf_InterestIncomePerUnit
Namespace Prefix:	mltf_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration