YieldMax(R) SKHY Option Income Strategy ETF Underlying Security Risks [Member] Indirect Investment in SK Hynix Risk [Member] SK Hynix Trading Risk [Member] SK Hynix Performance Risk [Member] SK Hynix Business and Operations Risk [Member] Semiconductors and Semiconductor Equipment Industry Risks [Member] Technology Sector Risk [Member] Newly Listed ADR Risk [Member] Derivatives Risk [Member] Options Contracts [Member] Counterparty Risk [Member] Price Participation Risk [Member] Distribution Risk [Member] NAV Erosion Risk Due to Distributions [Member] Call Strategy Risks [Member] ETF Risks [Member] Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] Cash Redemption Risk [Member] Costs of Buying or Selling Shares [Member] Shares May Trade at Prices Other Than NAV [Member] Trading [Member] Economic and Market Risk [Member] High Portfolio Turnover Risk [Member] Inflation Risk [Member] Liquidity Risk [Member] Management Risk [Member] Money Market Instrument Risk [Member] Operational Risk [Member] Single Issuer Risk [Member] Tax Risk [Member] U.S. Government and U.S. Agency Obligations Risk [Member] YieldMax(R) SKHY Option Income Strategy ETF [Member] YieldMax(R) SKHY Option Income Strategy ETF. YieldMax(R) SKHY Option Income Strategy ETF [Member] U.S. Government and U.S. Agency Obligations Risk. Tax Risk. Single Issuer Risk. Operational Risk. Money Market Instrument Risk. Management Risk. Liquidity Risk. Inflation Risk. High Portfolio Turnover Risk. Economic and Market Risk. Trading. Shares May Trade at Prices Other Than NAV. Costs of Buying or Selling Shares. Cash Redemption Risk. Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. ETF Risks. Call Strategy Risks. NAV Erosion Risk Due to Distributions. Distribution Risk. Price Participation Risk. Counterparty Risk. Options Contracts. Derivatives Risk. Newly Listed ADR Risk. Technology Sector Risk. Semiconductors and Semiconductor Equipment Industry Risks. SK Hynix Business and Operations Risk. SK Hynix Performance Risk. SK Hynix Trading Risk. Indirect Investment in SK Hynix Risk. Underlying Security Risks.