Quadratic Interest Rate Volatility and Inflation Hedge ETF Derivatives Risk [Member] Hedging Risk [Member] Ratelinked Derivatives Investment Risk [Member] Fixed Income Securities Risk [Member] Tips Risk [Member] U S Government Obligations Risk [Member] Nondiversified Fund Risk [Member] Etf Risk [Member] Liquidity Risk [Member] Management Risk [Member] Market Risk [Member] Valuation Risk [Member] Large Shareholder Risk [Member] Investments In Investment Companies Risk [Member] Tax Risk [Member] Cash And Cash Equivalents Risk [Member] Return Of Capital Risk [Member] Operational And Cybersecurity Risk [Member] Quadratic Deflation ETF Quadratic Interest Rate Volatility and Inflation Hedge ETF Quadratic Deflation ETF Bloomberg US Treasury Inflation-Linked Bond Index (Reflects no deduction for fees, expenses or taxes) Bloomberg Long U.S. Treasury Index (Reflects no deduction for fees, expenses or taxes) Quadratic Interest Rate Volatility and Inflation Hedge ETF [Default Label] Quadratic Deflation ETF [Default Label]