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Significant Accounting Policies (Details 2) | Feb. 29, 2012 | Feb. 28, 2012
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Class A and Class C [Member] |  |
Compensation for mutual fund administration, transfer agency and other related functions |  |
Rate of Administrative Service Fees | 0.25% | 0.26%
Class I [Member] |  |
Compensation for mutual fund administration, transfer agency and other related functions |  |
Rate of Administrative Service Fees | 0.25% | 0.24%
Class Y [Member] |  |
Compensation for mutual fund administration, transfer agency and other related functions |  |
Rate of Administrative Service Fees | 0.10% | 0.10%

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- Details
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- Definition Rate of administrative service fees. + References No definition available. + Details
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