Creation and Redemption of Creation Units - Schedule of Transaction Fees (Detail) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2025
Summary of Investment Holdings [Line Items]
Transaction fees	$ 1,426,612	$ 2,627,779
ProShares Short VIX Short-Term Futures ETF [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	366,662	435,664
ProShares Ultra Bloomberg Crude Oil [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0
ProShares Ultra Bloomberg Natural Gas [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0
ProShares Ultra Euro [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0
ProShares Ultra Gold [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0
ProShares Ultra Silver [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0
ProShares Ultra VIX Short-Term Futures ETF [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	944,505	1,903,526
ProShares Ultra Yen [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0
ProShares UltraShort Bloomberg Crude Oil [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0
ProShares UltraShort Bloomberg Natural Gas [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0
ProShares UltraShort Euro [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0
ProShares UltraShort Gold [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0
ProShares UltraShort Silver [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0
ProShares UltraShort Yen [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	0	0
ProShares VIX Mid-Term Futures ETF [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	4,743	15,783
ProShares VIX Short-Term Futures ETF [Member]
Summary of Investment Holdings [Line Items]
Transaction fees	$ 110,702	$ 272,806