v3.22.2
Investments - Offsetting of Financial Assets and Liabilities (Detail) - USD ($)
Jun. 30, 2022
Dec. 31, 2021
Swap Agreements [Member]    
Derivative [Line Items]    
Net Amounts of Assets presented in the Statements of Financial Condition $ 2,594,022 $ 113,159,180
Net Amounts of Liabilities presented in the Statements of Financial Condition 219,150,943 3,391,968
Foreign Currency Forward Contracts [Member]    
Derivative [Line Items]    
Net Amounts of Assets presented in the Statements of Financial Condition 4,529,655 1,457,257
Net Amounts of Liabilities presented in the Statements of Financial Condition 772,612 806,178
ProShares Ultra Bloomberg Crude Oil [Member] | Swap Agreements [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets presented in the Statements of Financial Condition 0 63,928,293
Gross Amounts Offset in the Statements of Financial Condition 0 0
Net Amounts of Assets presented in the Statements of Financial Condition 0 63,928,293
Gross Amounts of Recognized Liabilities presented in the Statements of Financial Condition 152,287,155 0
Gross Amounts Offset in the Statements of Financial Condition 0 0
Net Amounts of Liabilities presented in the Statements of Financial Condition 152,287,155 0
ProShares Ultra Euro [Member] | Foreign Currency Forward Contracts [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets presented in the Statements of Financial Condition 17,639 84,150
Gross Amounts Offset in the Statements of Financial Condition 0 0
Net Amounts of Assets presented in the Statements of Financial Condition 17,639 84,150
Gross Amounts of Recognized Liabilities presented in the Statements of Financial Condition 350,034 1,498
Gross Amounts Offset in the Statements of Financial Condition 0 0
Net Amounts of Liabilities presented in the Statements of Financial Condition 350,034 1,498
ProShares Ultra Gold [Member] | Swap Agreements [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets presented in the Statements of Financial Condition 0 8,639,188
Gross Amounts Offset in the Statements of Financial Condition 0 0
Net Amounts of Assets presented in the Statements of Financial Condition 0 8,639,188
Gross Amounts of Recognized Liabilities presented in the Statements of Financial Condition 6,451,858 0
Gross Amounts Offset in the Statements of Financial Condition 0 0
Net Amounts of Liabilities presented in the Statements of Financial Condition 6,451,858 0
ProShares Ultra Silver [Member] | Swap Agreements [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets presented in the Statements of Financial Condition 0 40,591,699
Gross Amounts Offset in the Statements of Financial Condition 0 0
Net Amounts of Assets presented in the Statements of Financial Condition 0 40,591,699
Gross Amounts of Recognized Liabilities presented in the Statements of Financial Condition 60,411,930 0
Gross Amounts Offset in the Statements of Financial Condition 0 0
Net Amounts of Liabilities presented in the Statements of Financial Condition 60,411,930 0
ProShares Ultra VIX Short-Term Futures ETF [Member] | Swap Agreements [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets presented in the Statements of Financial Condition   0
Gross Amounts Offset in the Statements of Financial Condition   0
Net Amounts of Assets presented in the Statements of Financial Condition   0
Gross Amounts of Recognized Liabilities presented in the Statements of Financial Condition   477,437
Gross Amounts Offset in the Statements of Financial Condition   0
Net Amounts of Liabilities presented in the Statements of Financial Condition   477,437
ProShares Ultra Yen [Member] | Foreign Currency Forward Contracts [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets presented in the Statements of Financial Condition 2,012 821
Gross Amounts Offset in the Statements of Financial Condition 0 0
Net Amounts of Assets presented in the Statements of Financial Condition 2,012 821
Gross Amounts of Recognized Liabilities presented in the Statements of Financial Condition 79,162 93,933
Gross Amounts Offset in the Statements of Financial Condition 0 0
Net Amounts of Liabilities presented in the Statements of Financial Condition 79,162 93,933
ProShares UltraShort Euro [Member] | Foreign Currency Forward Contracts [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets presented in the Statements of Financial Condition 3,382,293 135,118
Gross Amounts Offset in the Statements of Financial Condition 0 0
Net Amounts of Assets presented in the Statements of Financial Condition 3,382,293 135,118
Gross Amounts of Recognized Liabilities presented in the Statements of Financial Condition 187,210 343,159
Gross Amounts Offset in the Statements of Financial Condition 0 0
Net Amounts of Liabilities presented in the Statements of Financial Condition 187,210 343,159
ProShares UltraShort Gold [Member] | Swap Agreements [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets presented in the Statements of Financial Condition 720,984 0
Gross Amounts Offset in the Statements of Financial Condition 0 0
Net Amounts of Assets presented in the Statements of Financial Condition 720,984 0
Gross Amounts of Recognized Liabilities presented in the Statements of Financial Condition 0 993,117
Gross Amounts Offset in the Statements of Financial Condition 0 0
Net Amounts of Liabilities presented in the Statements of Financial Condition 0 993,117
ProShares UltraShort Silver [Member] | Swap Agreements [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets presented in the Statements of Financial Condition 1,873,038 0
Gross Amounts Offset in the Statements of Financial Condition 0 0
Net Amounts of Assets presented in the Statements of Financial Condition 1,873,038 0
Gross Amounts of Recognized Liabilities presented in the Statements of Financial Condition 0 1,921,414
Gross Amounts Offset in the Statements of Financial Condition 0 0
Net Amounts of Liabilities presented in the Statements of Financial Condition 0 1,921,414
ProShares UltraShort Yen [Member] | Foreign Currency Forward Contracts [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets presented in the Statements of Financial Condition 1,127,711 1,237,168
Gross Amounts Offset in the Statements of Financial Condition 0 0
Net Amounts of Assets presented in the Statements of Financial Condition 1,127,711 1,237,168
Gross Amounts of Recognized Liabilities presented in the Statements of Financial Condition 156,206 367,588
Gross Amounts Offset in the Statements of Financial Condition 0 0
Net Amounts of Liabilities presented in the Statements of Financial Condition $ 156,206 $ 367,588