v3.21.1

Creation and Redemption of Creation Units - Schedule of Transaction Fees (Detail) | 3 Months Ended
--- | ---
Mar. 31, 2021 USD ($)
Investment Holdings [Line Items] |
Transaction fees | $ 1,179,745
ProShares Short Euro [Member] |
Investment Holdings [Line Items] |
Transaction fees | 0
ProShares Short VIX Short-Term Futures ETF [Member] |
Investment Holdings [Line Items] |
Transaction fees | 42,067
ProShares Ultra Bloomberg Crude Oil [Member] |
Investment Holdings [Line Items] |
Transaction fees | 0
ProShares Ultra Bloomberg Natural Gas [Member] |
Investment Holdings [Line Items] |
Transaction fees | 0
ProShares Ultra Euro [Member] |
Investment Holdings [Line Items] |
Transaction fees | 0
ProShares Ultra Gold [Member] |
Investment Holdings [Line Items] |
Transaction fees | 0
ProShares Ultra Silver [Member] |
Investment Holdings [Line Items] |
Transaction fees | 0
ProShares Ultra VIX Short-Term Futures ETF [Member] |
Investment Holdings [Line Items] |
Transaction fees | 977,320
ProShares Ultra Yen [Member] |
Investment Holdings [Line Items] |
Transaction fees | 0
ProShares UltraShort Australian Dollar [Member] |
Investment Holdings [Line Items] |
Transaction fees | 0
ProShares UltraShort Bloomberg Crude Oil [Member] |
Investment Holdings [Line Items] |
Transaction fees | 0
ProShares UltraShort Bloomberg Natural Gas [Member] |
Investment Holdings [Line Items] |
Transaction fees | 0
ProShares UltraShort Euro [Member] |
Investment Holdings [Line Items] |
Transaction fees | 0
ProShares UltraShort Gold [Member] |
Investment Holdings [Line Items] |
Transaction fees | 0
ProShares UltraShort Silver [Member] |
Investment Holdings [Line Items] |
Transaction fees | 0
ProShares UltraShort Yen [Member] |
Investment Holdings [Line Items] |
Transaction fees | 0
ProShares VIX Mid-Term Futures ETF [Member] |
Investment Holdings [Line Items] |
Transaction fees | 7,122
ProShares VIX Short-Term Futures ETF [Member] |
Investment Holdings [Line Items] |
Transaction fees | $ 153,236

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