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Creation and Redemption of Creation Units - Schedule of Transaction Fees (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Summary of Investment Holdings [Line Items]
Transaction fees	$ 3,566,782	$ 2,392,992	$ 1,920,964
ProShares Short VIX Short-Term Futures ETF [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	476,376	614,775	242,256
ProShares Ultra Bloomberg Crude Oil [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0	0
ProShares Ultra Bloomberg Natural Gas [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0	0
ProShares Ultra Euro [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0	0
ProShares Ultra Gold [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0	0
ProShares Ultra Silver [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0	0
ProShares Ultra VIX Short-Term Futures ETF [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	2,555,460	1,474,842	1,375,762
ProShares Ultra Yen [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0	0
ProShares UltraShort Bloomberg Crude Oil [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0	0
ProShares UltraShort Bloomberg Natural Gas [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0	0
ProShares UltraShort Euro [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0	0
ProShares UltraShort Gold [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0	0
ProShares UltraShort Silver [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0	0
ProShares UltraShort Yen [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0	0
ProShares VIX Mid-Term Futures ETF [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	27,979	89,057	29,206
ProShares VIX Short-Term Futures ETF [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	$ 506,967	$ 214,318	$ 273,740

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