v3.24.0.1

Investments - Fair Value of Derivative Instruments (Detail) - Not Designated as Hedging Instrument [Member] - USD ($) | Dec. 31, 2023 | Dec. 31, 2022
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Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative asset not designated as hedging instrument, Unrealized Appreciation | [1] | $ 122,342,647 | $ 291,848,846
Derivative liability not accounted as hedging instrument, Unrealized Depreciation | [1] | 61,421,374 | 374,982,459
VIX Futures Contracts [Member] | Receivable on open futures contracts [Member] | ProShares Short VIX Short-Term Futures ETF [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative asset not designated as hedging instrument, Unrealized Appreciation | [1] | 12,640,624 | 11,092,381
VIX Futures Contracts [Member] | Payable on open futures contracts [Member] | ProShares Ultra VIX Short-Term Futures ETF [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative liability not accounted as hedging instrument, Unrealized Depreciation | [1] | 31,183,911 | 36,555,453
VIX Futures Contracts [Member] | Payable on open futures contracts [Member] | ProShares VIX Mid-Term Futures ETF [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative liability not accounted as hedging instrument, Unrealized Depreciation | [1] | 3,745,676 | 4,791,223
VIX Futures Contracts [Member] | Payable on open futures contracts [Member] | ProShares VIX Short-Term Futures ETF [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative liability not accounted as hedging instrument, Unrealized Depreciation | [1] | 9,664,094 | 9,796,823
Commodity Contracts [Member] | Receivables on open futures contracts and/or unrealized appreciation on swap agreements [Member] | ProShares Ultra Bloomberg Crude Oil [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative asset not designated as hedging instrument, Unrealized Appreciation | [1] | 20,191,987 | 100,451,293
Commodity Contracts [Member] | Receivables on open futures contracts and/or unrealized appreciation on swap agreements [Member] | ProShares Ultra Bloomberg Natural Gas [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative asset not designated as hedging instrument, Unrealized Appreciation | [1] | 43,607,070 |
Commodity Contracts [Member] | Receivables on open futures contracts and/or unrealized appreciation on swap agreements [Member] | ProShares Ultra Gold [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative asset not designated as hedging instrument, Unrealized Appreciation | [1] | 7,174,868 | 9,738,554
Commodity Contracts [Member] | Receivables on open futures contracts and/or unrealized appreciation on swap agreements [Member] | ProShares Ultra Silver [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative asset not designated as hedging instrument, Unrealized Appreciation | [1] | 12,400,748 | 68,650,786
Commodity Contracts [Member] | Receivables on open futures contracts and/or unrealized appreciation on swap agreements [Member] | ProShares UltraShort Bloomberg Crude Oil [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative asset not designated as hedging instrument, Unrealized Appreciation | [1] | 22,436,319 | 13,202,924
Commodity Contracts [Member] | Receivables on open futures contracts and/or unrealized appreciation on swap agreements [Member] | ProShares UltraShort Bloomberg Natural Gas [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative asset not designated as hedging instrument, Unrealized Appreciation | [1] |  | 85,889,398
Commodity Contracts [Member] | Receivables on open futures contracts and/or unrealized appreciation on swap agreements [Member] | ProShares UltraShort Silver [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative asset not designated as hedging instrument, Unrealized Appreciation | [1] | 1,879,957 |
Commodity Contracts [Member] | Payable on open futures contracts and/or unrealized depreciation on swap agreements [Member] | ProShares Ultra Bloomberg Crude Oil [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative liability not accounted as hedging instrument, Unrealized Depreciation | [1] | 5,752,284 |
Commodity Contracts [Member] | Payable on open futures contracts and/or unrealized depreciation on swap agreements [Member] | ProShares Ultra Bloomberg Natural Gas [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative liability not accounted as hedging instrument, Unrealized Depreciation | [1] |  | 310,613,969
Commodity Contracts [Member] | Payable on open futures contracts and/or unrealized depreciation on swap agreements [Member] | ProShares Ultra Silver [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative liability not accounted as hedging instrument, Unrealized Depreciation | [1] | 2,827,221 |
Commodity Contracts [Member] | Payable on open futures contracts and/or unrealized depreciation on swap agreements [Member] | ProShares UltraShort Bloomberg Crude Oil [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative liability not accounted as hedging instrument, Unrealized Depreciation | [1] |  | 2,958,031
Commodity Contracts [Member] | Payable on open futures contracts and/or unrealized depreciation on swap agreements [Member] | ProShares UltraShort Bloomberg Natural Gas [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative liability not accounted as hedging instrument, Unrealized Depreciation | [1] | 3,553,507 |
Commodity Contracts [Member] | Payable on open futures contracts and/or unrealized depreciation on swap agreements [Member] | ProShares UltraShort Gold [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative liability not accounted as hedging instrument, Unrealized Depreciation | [1] | 344,052 | 691,843
Commodity Contracts [Member] | Payable on open futures contracts and/or unrealized depreciation on swap agreements [Member] | ProShares UltraShort Silver [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative liability not accounted as hedging instrument, Unrealized Depreciation | [1] | 1,005,085 | 2,663,123
Foreign Exchange Contracts [Member] | Unrealized appreciation on foreign currency forward contracts [Member] | ProShares Ultra Euro [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative asset not designated as hedging instrument, Unrealized Appreciation |  | 308,424 | 514,115
Foreign Exchange Contracts [Member] | Unrealized appreciation on foreign currency forward contracts [Member] | ProShares Ultra Yen [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative asset not designated as hedging instrument, Unrealized Appreciation |  | 1,534,924 | 1,152,834
Foreign Exchange Contracts [Member] | Unrealized appreciation on foreign currency forward contracts [Member] | ProShares UltraShort Euro [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative asset not designated as hedging instrument, Unrealized Appreciation |  | 38,029 | 193,192
Foreign Exchange Contracts [Member] | Unrealized appreciation on foreign currency forward contracts [Member] | ProShares UltraShort Yen [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative asset not designated as hedging instrument, Unrealized Appreciation |  | 129,697 | 963,369
Foreign Exchange Contracts [Member] | Unrealized depreciation on foreign currency forward contracts [Member] | ProShares Ultra Euro [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative liability not accounted as hedging instrument, Unrealized Depreciation |  | 1,475 | 98,459
Foreign Exchange Contracts [Member] | Unrealized depreciation on foreign currency forward contracts [Member] | ProShares Ultra Yen [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative liability not accounted as hedging instrument, Unrealized Depreciation |  | 15,639 | 168,285
Foreign Exchange Contracts [Member] | Unrealized depreciation on foreign currency forward contracts [Member] | ProShares UltraShort Euro [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative liability not accounted as hedging instrument, Unrealized Depreciation |  | 1,886,808 | 2,654,448
Foreign Exchange Contracts [Member] | Unrealized depreciation on foreign currency forward contracts [Member] | ProShares UltraShort Yen [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative liability not accounted as hedging instrument, Unrealized Depreciation |  | $ 1,441,622 | $ 3,990,802
[1] | Includes cumulative appreciation (depreciation) of futures contracts as reported in the Schedule of Investments. Only current day’s variation margin is reported within the Statements of Financial Condition in receivable/payable on open futures.

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