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Expense Example (Optimized Value Trust, USD $)
12 Months Ended
May 01, 2011
Series I, Optimized Value Trust
 
Expense Example:  
Year 1 $ 80
Year 3 249
Year 5 433
Year 10 966
Series II, Optimized Value Trust
 
Expense Example:  
Year 1 100
Year 3 312
Year 5 542
Year 10 1,201
Series NAV, Optimized Value Trust
 
Expense Example:  
Year 1 75
Year 3 233
Year 5 406
Year 10 $ 906