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

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The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.

+ References

Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 4
-Subsection instructions

+ Details

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- Definition

+ References

Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph 2
-Subsection example

+ Details

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- Definition

+ References

Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph 2
-Subsection example

+ Details

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- Definition

+ References

Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph 2
-Subsection example

+ Details

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