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Subsequent Events - Additional Information (Detail) (USD $) | 12 Months Ended | 1 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | 1 Months Ended
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Jun. 30, 2013 | Jun. 30, 2013 Scenario, Forecast [Member] | Aug. 23, 2013 Subsequent Event [Member] | Jun. 30, 2013 Minimum [Member] Scenario, Forecast [Member] | Aug. 23, 2013 Minimum [Member] Investor Class Shares [Member] Subsequent Event [Member] | Aug. 23, 2013 Minimum [Member] Institutional Class Shares [Member] Subsequent Event [Member] | Jun. 30, 2013 Maximum [Member] Scenario, Forecast [Member] | Aug. 23, 2013 Maximum [Member] Investor Class Shares [Member] Subsequent Event [Member] | Aug. 23, 2013 Maximum [Member] Institutional Class Shares [Member] Subsequent Event [Member]
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Estimated transfer agency revenue, net |  | $ (1,310,000) |  |  |  |  |  |  |
Expenses on estimated agency transfer |  | 1,470,000 |  |  |  |  |  |  |
Estimated transition costs recognized |  |  |  | 150,000 |  |  | 375,000 |  |
Shareholder servicing fee | 1,380,000 |  |  |  |  |  |  |  |
Administrative fee rate |  |  |  |  | 0.08% | 0.06% |  | 0.10% | 0.08%
Administrative services fee, per fund |  |  | $ 10,000 |  |  |  |  |  |

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- Definition Annual Administrative Fee Rate + References No definition available. + Details
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- Definition Decrease in Expenses + References No definition available. + Details
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- Definition Increase Decrease Of Revenues + References No definition available. + Details
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- Definition Revenue from Administrative Services per Fund + References No definition available. + Details
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- Definition RevenueFrom Shareholder Servicing Fee + References No definition available. + Details
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- Definition Transition Costs + References No definition available. + Details
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Namespace Prefix: | grow_
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Balance Type: | debit
Period Type: | duration

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- Details
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