Corgi FTSE 7-10 Year U.S. Treasury Bond ETFCorgi FTSE Aaa-A Intermediate Corporate Bond ETFCorgi FTSE BBB Rated Corporate Bond ETFCorgi FTSE High Yield Corporate Bond ETFCorgi FTSE Fallen Angels Bond ETFCorgi FTSE U.S. MBS Bond ETFCorgi FTSE Intermediate Government/Credit Bond ETFCorgi FTSE National Municipal Bond ETFCorgi FTSE Short-Term National Municipal Bond ETFCorgi FTSE 10-20 Year U.S. Treasury Bond ETFCorgi FTSE California Municipal Bond ETFCorgi FTSE New York Municipal Bond ETFCorgi FTSE EM USD Sovereign Bond ETFCorgi FTSE EM Local Currency Sovereign Bond ETFCorgi FTSE EM USD Corporate Bond ETFCorgi FTSE International Developed Corporate Bond ETFCorgi FTSE International DM Sovereign Bond ETFCorgi FTSE 20+ Year U.S. Treasury Bond ETFCorgi FTSE U.S. Treasury Bond ETFCorgi FTSE U.S. TIPS Bond ETFCorgi FTSE U.S. Aggregate Bond ETFCorgi FTSE U.S. IG Corporate Bond ETFCorgi FTSE 5-10 Year IG Corporate Bond ETFCorgi FTSE 10+ Year IG Corporate Bond ETFCorgi FTSE 7-10 Year U.S. Treasury Bond ETF - ETF SharesCorgi FTSE Aaa-A Intermediate Corporate Bond ETF - ETF SharesCorgi FTSE BBB Rated Corporate Bond ETF - ETF SharesCorgi FTSE High Yield Corporate Bond ETF - ETF SharesCorgi FTSE Fallen Angels Bond ETF - ETF SharesCorgi FTSE U.S. MBS Bond ETF - ETF SharesCorgi FTSE Intermediate Government/Credit Bond ETF - ETF SharesCorgi FTSE National Municipal Bond ETF - ETF SharesCorgi FTSE Short-Term National Municipal Bond ETF - ETF SharesCorgi FTSE 10-20 Year U.S. Treasury Bond ETF - ETF SharesCorgi FTSE California Municipal Bond ETF - ETF SharesCorgi FTSE New York Municipal Bond ETF - ETF SharesCorgi FTSE EM USD Sovereign Bond ETF - ETF SharesCorgi FTSE EM Local Currency Sovereign Bond ETF - ETF SharesCorgi FTSE EM USD Corporate Bond ETF - ETF SharesCorgi FTSE International Developed Corporate Bond ETF - ETF SharesCorgi FTSE International DM Sovereign Bond ETF - ETF SharesCorgi FTSE 20+ Year U.S. Treasury Bond ETF - ETF SharesCorgi FTSE U.S. Treasury Bond ETF - ETF SharesCorgi FTSE U.S. TIPS Bond ETF - ETF SharesCorgi FTSE U.S. Aggregate Bond ETF - ETF SharesCorgi FTSE U.S. IG Corporate Bond ETF - ETF SharesCorgi FTSE 5-10 Year IG Corporate Bond ETF - ETF SharesCorgi FTSE 10+ Year IG Corporate Bond ETF - ETF SharesCash Transaction Risk [Member]Corgi Credit Risk [Member]Debt Securities Risk [Member]Duration Risk [Member]ETF Risks [Member]AP and Market Maker Dependence Risk [Member]Costs of Buying or Selling Shares [Member]Shares May Trade at Prices Other Than NAV [Member]Trading [Member]Income Risk [Member]Index Calculation and Methodology Risk [Member]Inflation Risk [Member]Corgi Interest Rate Risk [Member]Limited Shareholder Rights Risk [Member]Liquidity Risk [Member]Market Risk [Member]New Adviser Risk [Member]New Fund Risk [Member]Operational and Cybersecurity Risk [Member]Passive Strategy Risk [Member]Sampling Risk [Member]Third-Party Data Risk [Member]Tracking Difference and Tracking Error Risk [Member]Unaffiliated Index Provider Risk [Member]U.S. Treasury Obligations Risk [Member]Valuation Risk [Member]Inflation-Indexed Bonds Risk [Member]Agency Securities Risk [Member]Call Risk [Member]Commercial Mortgage-Backed Securities Risk [Member]Concentration Risk [Member]Extension Risk [Member]Foreign Issuer Risk [Member]Mortgage-Backed Securities Risk [Member]Corgi Prepayment Risk [Member]TBA Transactions and Dollar Roll Risk [Member]Corporate Bond Risk [Member]Derivatives Risk [Member]Financial Services Industries Risk [Member]Investment Grade Securities Risk [Member]High Yield Securities Risk [Member]Services and Manufacturing Sector Risk [Member]Fallen Angel Risk [Member]Government Securities Risk [Member]Municipal Securities Risk [Member]Tax Risk [Member]Low Short-Term Interest Rates Risk [Member]California Municipal Securities Risk [Member]New York Municipal Securities Risk [Member]Currency Risk [Member]Emerging Markets Risk [Member]Foreign Securities Risk [Member]Sovereign Debt Risk [Member]Currency Hedging and Forward Contracts Risk [Member]Corgi Geographic Concentration Risk [Member]