Harbor Active Commodity ETF S000101665 [Member] NONE or SAME C000271884 [Member] Commodity Risk [Member] Commodity Futures Contract Risks [Member] Commodity-Linked Derivatives Risk [Member] Authorized Participant Concentration Trading Risk [Member] Cash Transactions Risk [Member] Risks Associated with Exchange-Traded Funds [Member] Counterparty Risk [Member] Foreign Currency Risk [Member] Interest Rate Risk [Member] Market Risk [Member] New Fund Risk [Member] Precious Metals Investment Risk [Member] Sector Risk [Member] Selection Risk [Member] Subsidiary Risk [Member] Tax Risk [Member] U.S. Treasury Obligations Risk [Member]