v3.24.3

Investments - Fair Value of Derivative Instruments (Detail) - Not Designated as Hedging Instrument [Member] - USD ($) | Jun. 30, 2024 | Dec. 31, 2023
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Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivatives asset not accounted for as hedging instruments, Unrealized Appreciation | [1] | $ 123,184,648 | $ 122,342,647
Derivatives liability not accounted for as hedging instruments, Unrealized Depreciation | [1] | 242,443,922 | 61,421,374
VIX Futures Contracts [Member] | ProShares VIX Mid-Term Futures ETF [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivatives asset not accounted for as hedging instruments, Unrealized Appreciation | [1] | 422,352 |
VIX Futures Contracts [Member] | Receivable on open futures contracts [Member] | ProShares Short VIX Short-Term Futures ETF [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivatives asset not accounted for as hedging instruments, Unrealized Appreciation | [1] | 3,835,199 | 12,640,624
VIX Futures Contracts [Member] | Payable on open futures contracts [Member] | ProShares Ultra VIX Short-Term Futures ETF [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivatives liability not accounted for as hedging instruments, Unrealized Depreciation | [1] | 6,204,920 | 31,183,911
VIX Futures Contracts [Member] | Payable on open futures contracts [Member] | ProShares VIX Mid-Term Futures ETF [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivatives liability not accounted for as hedging instruments, Unrealized Depreciation | [1] | 285,377 | 3,745,676
VIX Futures Contracts [Member] | Payable on open futures contracts [Member] | ProShares VIX Short-Term Futures ETF [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivatives liability not accounted for as hedging instruments, Unrealized Depreciation | [1] | 2,660,820 | 9,664,094
Commodities 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] |  |  |
Derivatives asset not accounted for as hedging instruments, Unrealized Appreciation | [1] | 68,830,037 | 20,191,987
Commodities 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] |  |  |
Derivatives asset not accounted for as hedging instruments, Unrealized Appreciation | [1] |  | 43,607,070
Commodities 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] |  |  |
Derivatives asset not accounted for as hedging instruments, Unrealized Appreciation | [1] |  | 7,174,868
Commodities 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] |  |  |
Derivatives asset not accounted for as hedging instruments, Unrealized Appreciation | [1] |  | 12,400,748
Commodities 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] |  |  |
Derivatives asset not accounted for as hedging instruments, Unrealized Appreciation | [1] |  | 22,436,319
Commodities 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] |  |  |
Derivatives asset not accounted for as hedging instruments, Unrealized Appreciation | [1] | 40,824,143 |
Commodities Contracts [Member] | Receivables on open futures contracts and/or unrealized appreciation on swap agreements [Member] | ProShares UltraShort Gold [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivatives asset not accounted for as hedging instruments, Unrealized Appreciation | [1] | 575,805 |
Commodities 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] |  |  |
Derivatives asset not accounted for as hedging instruments, Unrealized Appreciation | [1] | 4,359,094 | 1,879,957
Commodities 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] |  |  |
Derivatives liability not accounted for as hedging instruments, Unrealized Depreciation | [1] |  | 5,752,284
Commodities 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] |  |  |
Derivatives liability not accounted for as hedging instruments, Unrealized Depreciation | [1] | 153,035,669 |
Commodities Contracts [Member] | Payable on open futures contracts and/or unrealized depreciation on swap agreements [Member] | ProShares Ultra Gold [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivatives liability not accounted for as hedging instruments, Unrealized Depreciation | [1] | 7,320,349 |
Commodities 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] |  |  |
Derivatives liability not accounted for as hedging instruments, Unrealized Depreciation | [1] | 56,076,627 | 2,827,221
Commodities 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] |  |  |
Derivatives liability not accounted for as hedging instruments, Unrealized Depreciation | [1] | 13,555,729 |
Commodities 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] |  |  |
Derivatives liability not accounted for as hedging instruments, Unrealized Depreciation | [1] |  | 3,553,507
Commodities 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] |  |  |
Derivatives liability not accounted for as hedging instruments, Unrealized Depreciation | [1] |  | 344,052
Commodities 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] |  |  |
Derivatives liability not accounted for as hedging instruments, Unrealized Depreciation | [1] |  | 1,005,085
Foreign Exchange Contracts [Member] | Unrealized appreciation on foreign currency forward contracts [Member] | ProShares Ultra Euro [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivatives asset not accounted for as hedging instruments, Unrealized Appreciation |  |  | 308,424
Foreign Exchange Contracts [Member] | Unrealized appreciation on foreign currency forward contracts [Member] | ProShares Ultra Yen [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivatives asset not accounted for as hedging instruments, Unrealized Appreciation |  | 29,111 | 1,534,924
Foreign Exchange Contracts [Member] | Unrealized appreciation on foreign currency forward contracts [Member] | ProShares UltraShort Euro [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivatives asset not accounted for as hedging instruments, Unrealized Appreciation |  | 937,816 | 38,029
Foreign Exchange Contracts [Member] | Unrealized appreciation on foreign currency forward contracts [Member] | ProShares UltraShort Yen [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivatives asset not accounted for as hedging instruments, Unrealized Appreciation |  | 3,371,091 | 129,697
Foreign Exchange Contracts [Member] | Unrealized depreciation on foreign currency forward contracts [Member] | ProShares Ultra Euro [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivatives liability not accounted for as hedging instruments, Unrealized Depreciation |  | 140,398 | 1,475
Foreign Exchange Contracts [Member] | Unrealized depreciation on foreign currency forward contracts [Member] | ProShares Ultra Yen [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivatives liability not accounted for as hedging instruments, Unrealized Depreciation |  | 2,931,169 | 15,639
Foreign Exchange Contracts [Member] | Unrealized depreciation on foreign currency forward contracts [Member] | ProShares UltraShort Euro [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivatives liability not accounted for as hedging instruments, Unrealized Depreciation |  | 17,867 | 1,886,808
Foreign Exchange Contracts [Member] | Unrealized depreciation on foreign currency forward contracts [Member] | ProShares UltraShort Yen [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivatives liability not accounted for as hedging instruments, Unrealized Depreciation |  | $ 214,997 | $ 1,441,622
[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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- Definition Investments owned unrecognized unrealized depreciation. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E + Details
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