v3.8.0.1

Organization - Additional Information (Detail) | 9 Months Ended
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Sep. 30, 2017 USD ($) Trust shares
Organization [Line Items] |
Number of series of Trust | Trust | 20
Number of shares of each Leveraged Fund | shares | 14
Aggregate purchase price of each Leveraged Fund | $ 350
Period for expected multiple returns | 1 day
ProShares UltraShort Bloomberg Crude Oil [Member] |
Organization [Line Items] |
Aggregate purchase price of each Leveraged Fund | $ 350
ProShares UltraShort Gold [Member] |
Organization [Line Items] |
Aggregate purchase price of each Leveraged Fund | 350
ProShares UltraShort Silver [Member] |
Organization [Line Items] |
Aggregate purchase price of each Leveraged Fund | 350
ProShares UltraShort Euro [Member] |
Organization [Line Items] |
Aggregate purchase price of each Leveraged Fund | 350
ProShares UltraShort Yen [Member] |
Organization [Line Items] |
Aggregate purchase price of each Leveraged Fund | 350
ProShares Ultra Bloomberg Crude Oil [Member] |
Organization [Line Items] |
Aggregate purchase price of each Leveraged Fund | 350
ProShares Ultra Gold [Member] |
Organization [Line Items] |
Aggregate purchase price of each Leveraged Fund | 350
ProShares Ultra Silver [Member] |
Organization [Line Items] |
Aggregate purchase price of each Leveraged Fund | 350
ProShares Ultra Euro [Member] |
Organization [Line Items] |
Aggregate purchase price of each Leveraged Fund | 350
ProShares Ultra Yen [Member] |
Organization [Line Items] |
Aggregate purchase price of each Leveraged Fund | $ 350

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- Definition Number of shares of each fund. + References No definition available. + Details
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Period Type: | duration

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- Details
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- Details
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Namespace Prefix: |
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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