Expense Example (Natural Resources Trust, USD $)	12 Months Ended
May 01, 2011
Series I, Natural Resources Trust
Expense Example:
Year 1	$ 110
Year 3	343
Year 5	595
Year 10	1,317
Series II, Natural Resources Trust
Expense Example:
Year 1	130
Year 3	406
Year 5	702
Year 10	1,545
Series NAV, Natural Resources Trust
Expense Example:
Year 1	105
Year 3	328
Year 5	569
Year 10	$ 1,259

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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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