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Expense Example (American Asset Allocation Trust, USD $)
12 Months Ended
May 01, 2011
Series I, American Asset Allocation Trust
 
Expense Example:  
Year 1 $ 95
Year 3 296
Year 5 515
Year 10 1,143
Series II, American Asset Allocation Trust
 
Expense Example:  
Year 1 110
Year 3 343
Year 5 595
Year 10 1,317
Series III, American Asset Allocation Trust
 
Expense Example:  
Year 1 59
Year 3 186
Year 5 324
Year 10 $ 726