Schedule of Investments - Short-Term U.S. Government and Agency Obligations (Parenthetical) (Detail)	6 Months Ended
Jun. 30, 2025 USD ($)
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares Ultra Bloomberg Crude Oil
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	12.00%
Total short-term U.S. government and agency obligations, cost	$ 49,958,924
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares Ultra Bloomberg Crude Oil \| U.S. Treasury Bills 4.401% due 07/08/25
Schedule of Investments [Line Items]
Interest rate	4.401%
Investment, maturity date	Jul. 08, 2025
Discount rate at the time of purchase	true
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares Ultra Bloomberg Natural Gas
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	6.00%
Total short-term U.S. government and agency obligations, cost	$ 19,983,569
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares Ultra Bloomberg Natural Gas \| U.S. Treasury Bills 4.401% due 07/08/25
Schedule of Investments [Line Items]
Interest rate	4.401%
Investment, maturity date	Jul. 08, 2025
Discount rate at the time of purchase	true
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares Ultra Gold
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	15.00%
Total short-term U.S. government and agency obligations, cost	$ 74,938,385
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares Ultra Gold \| U.S. Treasury Bills 4.401% due 07/08/25
Schedule of Investments [Line Items]
Interest rate	4.401%
Investment, maturity date	Jul. 08, 2025
Discount rate at the time of purchase	true
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares Ultra Silver
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	17.00%
Total short-term U.S. government and agency obligations, cost	$ 119,913,242
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares Ultra Silver \| U.S. Treasury Bills 4.401% due 07/08/25
Schedule of Investments [Line Items]
Interest rate	4.401%
Investment, maturity date	Jul. 08, 2025
Discount rate at the time of purchase	true
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares Ultra Silver \| U.S. Treasury Bills 4.421% due 07/03/25
Schedule of Investments [Line Items]
Interest rate	4.421%
Investment, maturity date	Jul. 03, 2025
Discount rate at the time of purchase	true
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares Ultra VIX Short-Term Futures ETF
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	3.00%
Total short-term U.S. government and agency obligations, cost	$ 14,987,677
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares Ultra VIX Short-Term Futures ETF \| U.S. Treasury Bills 4.401% due 07/08/25
Schedule of Investments [Line Items]
Interest rate	4.401%
Investment, maturity date	Jul. 08, 2025
Discount rate at the time of purchase	true
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares UltraShort Bloomberg Natural Gas
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	14.00%
Total short-term U.S. government and agency obligations, cost	$ 39,967,139
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares UltraShort Bloomberg Natural Gas \| U.S. Treasury Bills 4.401% due 07/08/25
Schedule of Investments [Line Items]
Interest rate	4.401%
Investment, maturity date	Jul. 08, 2025
Discount rate at the time of purchase	true

Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities | ProShares Ultra Bloomberg Crude Oil

Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities | ProShares Ultra Bloomberg Crude Oil | U.S. Treasury Bills 4.401% due 07/08/25

Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities | ProShares Ultra Bloomberg Natural Gas

Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities | ProShares Ultra Bloomberg Natural Gas | U.S. Treasury Bills 4.401% due 07/08/25

Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities | ProShares Ultra Gold

Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities | ProShares Ultra Gold | U.S. Treasury Bills 4.401% due 07/08/25

Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities | ProShares Ultra Silver

Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities | ProShares Ultra Silver | U.S. Treasury Bills 4.401% due 07/08/25

Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities | ProShares Ultra Silver | U.S. Treasury Bills 4.421% due 07/03/25

Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities | ProShares Ultra VIX Short-Term Futures ETF

Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities | ProShares Ultra VIX Short-Term Futures ETF | U.S. Treasury Bills 4.401% due 07/08/25

Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities | ProShares UltraShort Bloomberg Natural Gas

Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities | ProShares UltraShort Bloomberg Natural Gas | U.S. Treasury Bills 4.401% due 07/08/25