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Financial Highlights - Per Share Operating Performance (Parenthetical) (Detail) | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
ProShares Short VIX Short-Term Futures ETF [Member] |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |
Expense ratio, excluding non-recurring fees and expenses | 0.95% | 0.95% | 0.95%
ProShares Ultra Bloomberg Crude Oil [Member] |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |
Expense ratio, excluding non-recurring fees and expenses | 0.95% | 0.95% | 0.95%
ProShares Ultra Bloomberg Natural Gas [Member] |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |
Expense ratio, excluding non-recurring fees and expenses | 0.95% | 0.95% | 0.95%
ProShares Ultra Euro [Member] |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |
Expense ratio, excluding non-recurring fees and expenses | 0.95% | 0.95% | 0.95%
ProShares Ultra Gold [Member] |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |
Expense ratio, excluding non-recurring fees and expenses | 0.95% | 0.95% | 0.95%
ProShares Ultra Silver [Member] |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |
Expense ratio, excluding non-recurring fees and expenses | 0.95% | 0.95% | 0.95%
ProShares Ultra VIX Short-Term Futures ETF [Member] |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |
Expense ratio, excluding non-recurring fees and expenses | 0.95% | 0.95% | 0.95%
ProShares Ultra Yen [Member] |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |
Expense ratio, excluding non-recurring fees and expenses | 0.95% | 0.95% | 0.95%
ProShares UltraShort Bloomberg Crude Oil [Member] |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |
Expense ratio, excluding non-recurring fees and expenses | 0.95% | 0.95% | 0.95%
ProShares UltraShort Bloomberg Natural Gas [Member] |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |
Expense ratio, excluding non-recurring fees and expenses | 0.95% | 0.95% | 0.95%
ProShares UltraShort Euro [Member] |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |
Expense ratio, excluding non-recurring fees and expenses | 0.95% | 0.95% | 0.95%
ProShares UltraShort Gold [Member] |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |
Expense ratio, excluding non-recurring fees and expenses | 0.95% | 0.95% | 0.95%
ProShares UltraShort Silver [Member] |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |
Expense ratio, excluding non-recurring fees and expenses | 0.95% | 0.95% | 0.95%
ProShares UltraShort Yen [Member] |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |
Expense ratio, excluding non-recurring fees and expenses | 0.95% | 0.95% | 0.95%
ProShares VIX Mid-Term Futures ETF [Member] |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |
Expense ratio, excluding non-recurring fees and expenses | 0.85% | 0.85% | 0.85%
ProShares VIX Short-Term Futures ETF [Member] |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |
Expense ratio, excluding non-recurring fees and expenses | 0.85% | 0.85% | 0.85%

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