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Expense Example (International Small Company Trust, USD $)
12 Months Ended
May 01, 2011
Series I, International Small Company Trust
 
Expense Example:  
Year 1 $ 116
Year 3 362
Year 5 628
Year 10 1,386
Series II, International Small Company Trust
 
Expense Example:  
Year 1 136
Year 3 425
Year 5 734
Year 10 1,613
Series NAV, International Small Company Trust
 
Expense Example:  
Year 1 111
Year 3 347
Year 5 601
Year 10 $ 1,329