ProShares Ultra SpaceX S000103522 [Member] None C000274073 [Member] Single Security Investing Risk [Member] IPO Risk [Member] Leverage Risk [Member] Holding Period Risk [Member] Correlation Risk [Member] Derivatives Risk [Member] Swap Risk [Member] Counterparty Risk [Member] Liquidity Risk [Member] Equity Risk [Member] Money Market Risk [Member] Concentration-Focus Risk [Member] Communication Services Risk [Member] Non-Diversification Risk [Member] Intraday Price Risk [Member] Market Price Risk [Member] Early Close Late Close Trading Halt Risk [Member] Tax Risk [Member] New Fund Risk [Member]