v3.24.0.1
Significant Accounting Policies - Cut-off Times and Times of Calculation of Funds' Final Net Asset Value for Creation and Redemption of Fund Shares (Detail)
 12 Months Ended
Dec. 31, 2023
ProShares UltraShort Silver [Member]  
Net Asset Value [Line Items]  
Create/Redeem Cut-off 1:00 p.m. [1]
NAV Calculation Time 1:25 p.m.
NAV Calculation Date December 29, 2023
ProShares UltraShort Gold [Member]  
Net Asset Value [Line Items]  
Create/Redeem Cut-off 1:00 p.m. [1]
NAV Calculation Time 1:30 p.m.
NAV Calculation Date December 29, 2023
ProShares UltraShort Bloomberg Natural Gas [Member]  
Net Asset Value [Line Items]  
Create/Redeem Cut-off 2:00 p.m. [1]
NAV Calculation Time 2:30 p.m.
NAV Calculation Date December 29, 2023
ProShares UltraShort Yen [Member]  
Net Asset Value [Line Items]  
Create/Redeem Cut-off 3:00 p.m. [1]
NAV Calculation Time 4:00 p.m.
NAV Calculation Date December 29, 2023
ProShares VIX Short-Term Futures ETF [Member]  
Net Asset Value [Line Items]  
Create/Redeem Cut-off 2:00 p.m. [1]
NAV Calculation Time 4:00 p.m.
NAV Calculation Date December 29, 2023
[1] Although the Funds’ shares may continue to trade on secondary markets subsequent to the calculation of the final NAV, these times represent the final opportunity to transact in creation or redemption units for the twelve months ended December 31, 2023.