KraneShares 90% KWEB Defined Outcome January 2027 ETF Buffered Loss Risk [Member] Capped Upside Return Risk [Member] Derivatives Risk [Member] Options Risk [Member] Options Income Risk [Member] O C C Resetting Strike Prices Risk [Member] Clearing Member Default Risk [Member] Outcome Period Risk [Member] Upside Participation Risk [Member] Cap Change Risk [Member] Non Correlation Risk [Member] China Risk [Member] Internet Companies Risk [Member] Equity Securities Risk [Member] Emerging Markets Risk [Member] Foreign Securities Risk [Member] Geographic Focus Risk [Member] Currency Risk [Member] Non Diversified Fund Risk [Member] Concentration Risk [Member] Communication Services Sector Risk [Member] Consumer Discretionary Sector Risk [Member] Securities Lending Risk [Member] E T F Risk [Member] New Small Fund Risk [Member] Liquidity Risk [Member] Conflict Of Interest Risk [Member] Small And Mid Capitalization Company Risk [Member] Large Capitalization Company Risk [Member] Management Risk [Member] Market Risk [Member] Valuation Risk [Member] Large Shareholder Risk [Member] Tax Risk [Member] Depositary Receipts Risk [Member] I P O Risk [Member] Investments In Investment Companies Risk [Member] Cash And Cash Equivalents Risk [Member] Operational And Cybersecurity Risk [Member] KraneShares 100% KWEB Defined Outcome January 2027 ETF Option Income Risk [Member] KraneShares Asia Pacific High Income USD Bond ETF Asia Pacific Risk [Member] High Yield And Unrated Securities Risk [Member] Fixed Income Securities Risk [Member] Regulation S Securities Risk [Member] Convertible Securities Risk [Member] Real Estate Sector Risk [Member] Financials Sector Risk [Member] Sovereign And Quasi Sovereign Debt Risk [Member] High Portfolio Turnover Risk [Member] KraneShares Bosera MSCI China A 50 Connect Index ETF Industrials Sector Risk [Member] Information Technology Sector Risk [Member] Consumer Staples Sector Risk [Member] Mid Capitalization Company Risk [Member] Passive Investment And Index Risk [Member] Tracking Error Risk [Member] KraneShares California Carbon Allowance Strategy ETF Carbon Emission Allowance And Cap And Trade Risk [Member] Regulatory Risk [Member] Subsidiary Investment Risk [Member] Counterparty Risk [Member] Futures Contract Risk [Member] Commodity And Commodity Linked Derivatives Risk [Member] Commodity Pool Registration Risk [Member] Energy Sector Risk [Member] U S Government Obligations Risk [Member] KraneShares China Alpha Index ETF Machine Learning And Data Risk [Member] Non Diversified Fund Risks [Member] Materials Sector Risk [Member] KraneShares China Technology & Semiconductor STAR 50 Index ETF Healthcare Sector Risk [Member] Semiconductor Industry Risk [Member] KraneShares CSI China Internet ETF Passive Foreign Investment Companies Risk [Member] KraneShares Dragon Capital Growth of Vietnam Index ETF Vietnam Risk [Member] Frontier Markets Risk [Member] KraneShares Electric Vehicles and Future Mobility Index ETF Autonomous Vehicles And Future Mobility Companies Risk [Member] South Korea Risk [Member] KraneShares Global Carbon Strategy ETF Futures Strategy Risk [Member] Commodity Linked Derivatives Risk [Member] Foreign Investments Risk [Member] Reverse Repurchase Agreements Risk [Member] KraneShares Global Humanoid Robotics and Physical AI Index ETF Artificial Intelligence Technology Risk [Member] Japan Risk [Member] KraneShares Hang Seng TECH Index ETF KraneShares Hedgeye Hedged Equity Index ETF Affiliated Index Provider Risk [Member] Key Man Risk [Member] Hedgeye Risk Range Signal Publication Risk [Member] Hedging Risk [Member] KraneShares High-Bandwidth Memory ETF High Bandwidth Memory Companies Risk [Member] Line Of Business Risk [Member] Taiwan Risk [Member] KraneShares InspereX Nasdaq Dynamic Buffered High Income Index ETF Swap Agreement Risk [Member] Futures Contracts Risk [Member] New Small Funds Risk [Member] KraneShares KWEB Covered Call Strategy ETF Covered Call Options Risk [Member] Return Of Capital Risk [Member] KraneShares Man Buyout Beta Index ETF Model And Data Risk [Member] KraneShares Mount Lucas Managed Futures Index Strategy ETF Commodit And Commodity Linked Derivatives Risk [Member] Short Sale Risk [Member] KraneShares MSCI All China Health Care Index ETF KraneShares MSCI China Clean Technology Index ETF Clean Technology Risk [Member] Utilities Sector Risk [Member] KraneShares MSCI Emerging Markets ex China Index ETF India Risk [Member] Non Diversification Risk [Member] KraneShares MSCI One Belt One Road Index ETF Singapore Risk [Member] South Africa Risk [Member] KraneShares Public-Private AI & Technology ETF Private Company Risk [Member] KraneShares Public-Private Emerging Markets Internet and Technology ETF KraneShares Sustainable Ultra Short Duration Index ETF Esg Risk [Member] KraneShares Value Line(R) Dynamic Dividend Equity Index ETF Dividend Paying Securities Risk [Member] Ranking Risk [Member] KraneShares Wahed Alternative Income Index ETF Shariahcompliant Investing Risk [Member] Quadratic Interest Rate Volatility and Inflation Hedge ETF Rate Linked Derivatives Investment Risk [Member] Tips Risk [Member] Quadratic Deflation ETF KraneShares 2x Long BABA Daily ETF Alibaba Group Holding Limited Investing Risk [Member] Indirect Investment Risk [Member] Effects Of Compounding And Market Volatility Risk [Member] Correlation Risk [Member] Intraday Investment Risk. [Member] Leverage Risk [Member] Swap Risk [Member] Trading Halt Risk [Member] On Line Business Services And Retail Company Risks [Member] E Commerce Risk [Member] Small Fund Risk [Member] Rebalancing Risk [Member] KraneShares 2x Long BIDU Daily ETF Baidu Inc Investing Risk [Member] Intraday Investment Risk [Member] Media And Entertainment Industry Risk [Member] KraneShares 2x Long JD Daily ETF J D Com Investing Risk [Member] KraneShares 2x Long MELI Daily ETF Mercadolibre Inc Investing Risk [Member] Latin America Risk [Member] Brazil Risk [Member] KraneShares 2x Long PDD Daily ETF Pdd Holdings Inc Investing Risk [Member] KraneShares 90% KWEB Defined Outcome January 2027 ETF KraneShares 100% KWEB Defined Outcome January 2027 ETF KraneShares Asia Pacific High Income USD Bond ETF KraneShares Bosera MSCI China A 50 Connect Index ETF KraneShares California Carbon Allowance Strategy ETF KraneShares China Alpha Index ETF KraneShares China Technology & Semiconductor STAR 50 Index ETF KraneShares CSI China Internet ETF KraneShares Dragon Capital Growth of Vietnam Index ETF KraneShares Electric Vehicles and Future Mobility Index ETF KraneShares Global Carbon Strategy ETF KraneShares Global Humanoid Robotics and Physical AI Index ETF KraneShares Hang Seng TECH Index ETF KraneShares Hedgeye Hedged Equity Index ETF KraneShares High-Bandwidth Memory ETF KraneShares InspereX Nasdaq Dynamic Buffered High Income Index ETF KraneShares KWEB Covered Call Strategy ETF KraneShares Man Buyout Beta Index ETF KraneShares Mount Lucas Managed Futures Index Strategy ETF KraneShares MSCI All China Health Care Index ETF KraneShares MSCI China Clean Technology Index ETF KraneShares MSCI Emerging Markets ex China Index ETF KraneShares MSCI One Belt One Road Index ETF KraneShares Public-Private AI & Technology ETF KraneShares Public-Private Emerging Markets Internet and Technology ETF KraneShares Sustainable Ultra Short Duration Index ETF KraneShares Value Line(R) Dynamic Dividend Equity Index ETF KraneShares Wahed Alternative Income Index ETF Quadratic Interest Rate Volatility and Inflation Hedge ETF Quadratic Deflation ETF KraneShares 2x Long BABA Daily ETF KraneShares 2x Long BIDU Daily ETF KraneShares 2x Long JD Daily ETF KraneShares 2x Long MELI Daily ETF KraneShares 2x Long PDD Daily ETF S&P 500 Index (Reflects no deduction for fees, expenses or taxes) S&P Global Carbon Credit Index (Reflects no deduction for fees, expenses or taxes) MSCI China All Shares Index (Reflects no deduction for fees, expenses or taxes) CSI Overseas China Internet Index (Reflects no deduction for fees, expenses or taxes) JP Morgan Asia Credit Index (JACI) Diversified (Reflects no deduction for fees, expenses or taxes) JP Morgan Asia Credit Index (JACI) Non-Investment Grade Corporate Index (Reflects no deduction for fees, expenses or taxes) Custom Blended KBA Index (Net) (Reflects reinvested dividends net of withholding taxes, but reflects no deduction for fees, expenses or other taxes) S&P Carbon Credit CCA Index (Reflects no deduction for fees, expenses or taxes) Qi China Alpha Index (Reflects no deduction for fees, expenses or taxes) SSE Science & Technology Innovation Board 50 Index (Reflects no deduction for fees, expenses or taxes) MSCI ACWI (Reflects no deduction for fees, expenses or taxes) Custom Blended KARS Index (Reflects no deduction for fees, expenses or taxes) Hang Seng TECH Index (Reflects no deduction for fees, expenses or taxes) Hedgeye Hedged Equity Index (Reflects no deduction for fees, expenses or taxes) Russell 3000 Index (Reflects no deduction for fees, expenses or taxes) Man Buyout Beta Index (Reflects no deduction for fees, expenses or taxes) Bloomberg Global Aggregate Index (Reflects no deduction for fees, expenses or taxes) KFA MLM Index (Reflects no deduction for fees, expenses or taxes) MSCI China All Shares Health Care 10/40 Index (Reflects reinvested dividends net of withholding taxes, but reflects no deduction for fees, expenses or other taxes) MSCI China IMI Environment 10/40 Index (Net) (Reflects reinvested dividends net of withholding taxes, but reflects no deduction for fees, expenses or other taxes) MSCI Emerging Markets Index (Reflects no deduction for fees, expenses or taxes) MSCI Emerging Markets ex China Index (Reflects reinvested dividends net of withholding taxes, but reflects no deduction for fees, expenses or other taxes) MSCI Global China Infrastructure Exposure Index (Net) (Reflects reinvested dividends net of withholding taxes, but reflects no deduction for fees, expenses or other taxes) Solactive Etna Artificial General Intelligence Index (Reflects no deduction for fees, expenses or taxes) Solactive Emerging Markets Consumer Technology Index (Reflects no deduction for fees, expenses or taxes) Bloomberg U.S Aggregate Bond (Reflects no deduction for fees, expenses or taxes) Solactive ISS Sustainable Select 0-1 Year USD Corporate IG Index (Reflects no deduction for fees, expenses or taxes) Value Line® Dynamic Dividend Equity Index (Reflects no deduction for fees, expenses or taxes) Bloomberg Long U.S. Treasury Index (Reflects no deduction for fees, expenses or taxes) Bloomberg Long U.S. Treasury Index (Reflects no deduction for fees, expenses or taxes) KraneShares 90% KWEB Defined Outcome January 2027 ETF [Default Label] KraneShares 100% KWEB Defined Outcome January 2027 ETF [Default Label] KraneShares Asia Pacific High Income USD Bond ETF [Default Label] KraneShares Bosera MSCI China A 50 Connect Index ETF [Default Label] KraneShares California Carbon Allowance Strategy ETF [Default Label] KraneShares China Alpha Index ETF [Default Label] KraneShares China Technology & Semiconductor STAR 50 Index ETF [Default Label] KraneShares CSI China Internet ETF [Default Label] KraneShares Dragon Capital Growth of Vietnam Index ETF [Default Label] KraneShares Electric Vehicles and Future Mobility Index ETF [Default Label] KraneShares Global Carbon Strategy ETF [Default Label] KraneShares Global Humanoid Robotics and Physical AI Index ETF [Default Label] KraneShares Hang Seng TECH Index ETF [Default Label] KraneShares Hedgeye Hedged Equity Index ETF [Default Label] KraneShares High-Bandwidth Memory ETF [Default Label] KraneShares InspereX Nasdaq Dynamic Buffered High Income Index ETF [Default Label] KraneShares KWEB Covered Call Strategy ETF [Default Label] KraneShares Man Buyout Beta Index ETF [Default Label] KraneShares Mount Lucas Managed Futures Index Strategy ETF [Default Label] KraneShares MSCI All China Health Care Index ETF [Default Label] KraneShares MSCI China Clean Technology Index ETF [Default Label] KraneShares MSCI Emerging Markets ex China Index ETF [Default Label] KraneShares MSCI One Belt One Road Index ETF [Default Label] KraneShares Public-Private AI & Technology ETF [Default Label] KraneShares Public-Private Emerging Markets Internet and Technology ETF [Default Label] KraneShares Sustainable Ultra Short Duration Index ETF [Default Label] KraneShares Value Line(R) Dynamic Dividend Equity Index ETF [Default Label] KraneShares Wahed Alternative Income Index ETF [Default Label] Quadratic Interest Rate Volatility and Inflation Hedge ETF [Default Label] Quadratic Deflation ETF [Default Label] KraneShares 2x Long BABA Daily ETF [Default Label] KraneShares 2x Long BIDU Daily ETF [Default Label] KraneShares 2x Long JD Daily ETF [Default Label] KraneShares 2x Long MELI Daily ETF [Default Label] KraneShares 2x Long PDD Daily ETF [Default Label] Bloomberg Long U.S. Treasury Index (Reflects no deduction for fees, expenses or taxes) [Default Label]