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Expense Example (Equity-Income Trust, USD $)
12 Months Ended
May 01, 2011
Series I, Equity-Income Trust
 
Expense Example:  
Year 1 $ 89
Year 3 278
Year 5 482
Year 10 1,073
Series II, Equity-Income Trust
 
Expense Example:  
Year 1 109
Year 3 340
Year 5 590
Year 10 1,306
Series NAV, Equity-Income Trust
 
Expense Example:  
Year 1 84
Year 3 262
Year 5 455
Year 10 $ 1,014