v3.26.1
Investments - Gross Amounts Not Offset in Statements of Financial Condition (Detail) - USD ($)
Jun. 30, 2026
Dec. 31, 2025
ProShares Ultra Bloomberg Crude Oil [Member] | Citibank, N.A. [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition $ (2,576,150) $ (1,000,501)
Financial Instruments for the Benefit of (the Funds) / the Counterparties 2,576,150 0
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 1,000,501
Net Amounts 0 0
ProShares Ultra Bloomberg Crude Oil [Member] | Goldman Sachs International [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition (32,233,988) (4,341,571)
Financial Instruments for the Benefit of (the Funds) / the Counterparties 32,233,988 0
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 4,341,571
Net Amounts 0 0
ProShares Ultra Bloomberg Crude Oil [Member] | Societe Generale [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition (40,886,718) (3,285,599)
Financial Instruments for the Benefit of (the Funds) / the Counterparties 40,886,718 0
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 3,285,599
Net Amounts 0 0
ProShares Ultra Bloomberg Crude Oil [Member] | Morgan Stanley & Co. International PLC [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition   (1,318,911)
Financial Instruments for the Benefit of (the Funds) / the Counterparties   1,318,911
Cash Collateral for the Benefit of (the Funds) / the Counterparties   0
Net Amounts   0
ProShares Ultra Bloomberg Crude Oil [Member] | UBS AG [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition 391,156 (1,204,539)
Financial Instruments for the Benefit of (the Funds) / the Counterparties (391,156) 0
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 1,204,539
Net Amounts 0 0
ProShares Ultra Euro [Member] | Goldman Sachs International [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition (50,228) 31,315
Financial Instruments for the Benefit of (the Funds) / the Counterparties 50,228 0
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 0
Net Amounts 0 31,315
ProShares Ultra Euro [Member] | UBS AG [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition (75,612) 31,375
Financial Instruments for the Benefit of (the Funds) / the Counterparties 75,612 0
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 0
Net Amounts 0 31,375
ProShares Ultra Gold [Member] | Citibank, N.A. [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition (20,923,069) 16,272,555
Financial Instruments for the Benefit of (the Funds) / the Counterparties 20,923,069 (16,272,555)
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 0
Net Amounts 0 0
ProShares Ultra Gold [Member] | Goldman Sachs International [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition (7,586,111) 2,924,937
Financial Instruments for the Benefit of (the Funds) / the Counterparties 7,586,111 (2,924,937)
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 0
Net Amounts 0 0
ProShares Ultra Gold [Member] | UBS AG [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition (4,373,309) 9,478,963
Financial Instruments for the Benefit of (the Funds) / the Counterparties 4,373,309 (9,478,963)
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 0
Net Amounts 0 0
ProShares Ultra Silver [Member] | Citibank, N.A. [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition (79,642,009) 149,280,584
Financial Instruments for the Benefit of (the Funds) / the Counterparties 79,642,009 (149,280,584)
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 0
Net Amounts 0 0
ProShares Ultra Silver [Member] | Goldman Sachs International [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition (26,627,453) 10,108,427
Financial Instruments for the Benefit of (the Funds) / the Counterparties 26,627,453 (10,108,427)
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 0
Net Amounts 0 0
ProShares Ultra Silver [Member] | Morgan Stanley & Co. International PLC [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition (25,795,833) 68,581,771
Financial Instruments for the Benefit of (the Funds) / the Counterparties 25,795,833 (68,581,771)
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 0
Net Amounts 0 0
ProShares Ultra Silver [Member] | UBS AG [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition 2,869,644 85,942,476
Financial Instruments for the Benefit of (the Funds) / the Counterparties 0 (85,942,476)
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 0
Net Amounts 2,869,644 0
ProShares Ultra Yen [Member] | Goldman Sachs International [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition (465,491) (582,024)
Financial Instruments for the Benefit of (the Funds) / the Counterparties 465,491 0
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 582,024
Net Amounts 0 0
ProShares Ultra Yen [Member] | UBS AG [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition (484,834) (600,624)
Financial Instruments for the Benefit of (the Funds) / the Counterparties 484,834 0
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 600,624
Net Amounts 0 0
ProShares UltraShort Euro [Member] | Goldman Sachs International [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition 393,804 (202,439)
Financial Instruments for the Benefit of (the Funds) / the Counterparties (393,804) 0
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 202,439
Net Amounts 0 0
ProShares UltraShort Euro [Member] | UBS AG [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition 504,772 (189,935)
Financial Instruments for the Benefit of (the Funds) / the Counterparties (504,772) 0
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 189,935
Net Amounts 0 0
ProShares UltraShort Gold [Member] | Citibank, N.A. [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition 2,015,547 (1,863,184)
Financial Instruments for the Benefit of (the Funds) / the Counterparties (2,015,547) 0
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 1,863,184
Net Amounts 0 0
ProShares UltraShort Gold [Member] | Goldman Sachs International [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition 708,009 (276,649)
Financial Instruments for the Benefit of (the Funds) / the Counterparties (708,009) 0
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 276,649
Net Amounts 0 0
ProShares UltraShort Gold [Member] | UBS AG [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition 194,755 (428,363)
Financial Instruments for the Benefit of (the Funds) / the Counterparties (194,755) 0
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 428,363
Net Amounts 0 0
ProShares UltraShort Silver [Member] | Citibank, N.A. [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition 939,462 (1,454,002)
Financial Instruments for the Benefit of (the Funds) / the Counterparties (939,462) 0
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 1,454,002
Net Amounts 0 0
ProShares UltraShort Silver [Member] | Goldman Sachs International [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition 4,584,522 (4,490,093)
Financial Instruments for the Benefit of (the Funds) / the Counterparties (4,584,522) 0
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 4,490,093
Net Amounts 0 0
ProShares UltraShort Silver [Member] | Morgan Stanley & Co. International PLC [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition   (619,454)
Financial Instruments for the Benefit of (the Funds) / the Counterparties   0
Cash Collateral for the Benefit of (the Funds) / the Counterparties   619,454
Net Amounts   0
ProShares UltraShort Silver [Member] | UBS AG [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition (171,104) 2,243,402
Financial Instruments for the Benefit of (the Funds) / the Counterparties 171,104 0
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 0
Net Amounts 0 2,243,402
ProShares UltraShort Yen [Member] | Goldman Sachs International [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition 465,583 435,346
Financial Instruments for the Benefit of (the Funds) / the Counterparties (271,321) (281,679)
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 0
Net Amounts 194,262 153,667
ProShares UltraShort Yen [Member] | UBS AG [Member]    
Cash Collateral for the Benefit of (the Funds) / the Counterparties    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition 442,352 408,889
Financial Instruments for the Benefit of (the Funds) / the Counterparties (291,607) (302,661)
Cash Collateral for the Benefit of (the Funds) / the Counterparties 0 0
Net Amounts $ 150,745 $ 106,228